CN112895875A - Range-extending series-parallel hybrid power self-adaptive control system and method - Google Patents
Range-extending series-parallel hybrid power self-adaptive control system and method Download PDFInfo
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- CN112895875A CN112895875A CN202110268382.6A CN202110268382A CN112895875A CN 112895875 A CN112895875 A CN 112895875A CN 202110268382 A CN202110268382 A CN 202110268382A CN 112895875 A CN112895875 A CN 112895875A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A self-adaptive control system of extended-range series-parallel hybrid power comprises a vehicle control unit, an extended-range hybrid power controller, a two-gear-four-gear transmission controller, a motor controller, a rotating speed sensor, a mechanical coupler controller, a DSP (digital signal processor), a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module, CAN (controller area network) communication, a synchronizer mechanical coupler, a mechanical coupler operating mechanism, a transmission and a differential mechanism; the invention has the beneficial effects that: the method has the advantages of increasing the endurance mileage of the new energy automobile, solving the problem of low efficiency of the parallel hybrid electric vehicle, solving the mileage anxiety disorder of the pure electric automobile, prolonging the service life of the battery, solving the problem of low-temperature heating of the lithium battery, improving the comfort of the new energy automobile, expanding the application range of the new energy automobile, breaking through the market bottleneck of the pure electric automobile at the present stage, improving the system efficiency of the new energy automobile, reducing the oil consumption, saving energy, reducing emission and promoting the development of the new energy automobile market.
Description
Technical Field
The invention relates to a hybrid electric vehicle technology, in particular to a range-extending series-parallel hybrid power self-adaptive control system and a control method.
Background
At present, new energy automobiles are mainly divided into: a pure electric vehicle, a plug-in hybrid vehicle, a series hybrid vehicle (extended range hybrid vehicle), a series-parallel hybrid vehicle, a series-parallel hybrid vehicle, a fuel cell electric vehicle, a hydrogen engine vehicle, and the like. The extended-range series-parallel hybrid power self-adaptive control system has the advantages that the mechanical structure is relatively simple, a small-displacement engine is used, the engine basically works in a high-efficiency area, the working efficiency of the engine is higher, the oil consumption is lower, the exhaust emission is low, the oil is saved by more than 30% compared with the traditional automobile, the endurance mileage of the new energy automobile is increased, and the performance of the new energy automobile is improved.
The extended range electric automobile in the field of new energy automobiles is actually a parallel hybrid automobile which is provided with a gasoline generator and a plug-in hybrid automobile.
Disclosure of Invention
The invention aims to provide a range-extending series-parallel hybrid power self-adaptive control system and a range-extending series-parallel hybrid power self-adaptive control method, wherein the existing parallel hybrid power automobile is low in efficiency, and a pure electric automobile has obvious defects in the aspects of endurance mileage, charging time and battery life. The range-extending series-parallel hybrid power self-adaptive control system has obvious advantages at the present stage, can make up for the problems existing in the pure electric vehicle at present, is an important link in the process of developing the traditional vehicle to the pure electric vehicle, and is a technical problem which needs to be solved urgently in the development of the new energy vehicle at present. The existing series-parallel hybrid electric vehicle represented by Toyota Precision has the advantages of complex system, high technical difficulty, high production cost and unsuitability for market positioning of Chinese new energy vehicles.
The range-extending series-parallel hybrid power self-adaptive control system uses a medium-and-small-displacement engine, and the engine works in a high-efficiency area, so that the engine system has high efficiency and low oil consumption during working, and saves more than 30% of fuel consumption compared with the traditional gasoline vehicle. The extended-range series-parallel hybrid power self-adaptive control system can increase the power plug-in function, can be quickly charged in a charging station or a special charging pile, can be slowly charged at home, can work in a pure electric mode, an extended-range mode, a series hybrid mode and a parallel hybrid mode, expands the application range of a new energy automobile, breaks through the market bottleneck of the pure electric automobile and the parallel hybrid automobile at the present stage, meets the actual condition of the market in China and the requirements of consumer groups in China, improves the technical level of the new energy automobile and the competitiveness of the international market, and promotes the development of the market of the new energy automobile.
The technical scheme adopted by the invention for solving the technical problems is as follows: an extended range series-parallel hybrid power self-adaptive control system comprises a vehicle control unit, an extended range hybrid power controller, a transmission controller, a motor controller, a speed sensor, a mechanical coupler, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module, a mechanical coupler control and mechanical coupler operating mechanism, a mechanical coupler operating mechanism, an engine, a generator, a synchronizer mechanical coupler, a transmission, a motor and a power engine, wherein the vehicle control unit, the speed sensor, the mechanical coupler control unit and the mechanical coupler operating mechanism are connected through CAN communication respectively, the mechanical coupler control unit and the DSP digital processor are connected through CAN communication respectively, the mechanical coupler operating mechanism and the synchronizer are connected through the synchronizer mechanical coupler, the DSP controls and operates the mechanical coupler operating mechanism through the mechanical coupler, completes the combination and separation of the synchronizer mechanical coupler, and can control the switching of the extended range type series hybrid power mode and the parallel hybrid power mode; when the vehicle runs at low speed (the running speed of the vehicle is lower than 70km \ h), a range-extended series hybrid mode, a vehicle control unit, a range-extended hybrid controller, a two-gear-four-gear speed changer controller, a motor controller are respectively connected with a DSP digital processor through CAN communication, a rotating speed sensor, a mechanical coupler control and DSP digital processor, a high-speed motor acceleration control module and a transmission switching control module, the electromechanical coupling control module and the hybrid power control module are connected with the DSP, the engine is connected with the generator, the motor is connected with the differential through the transmission, power is output through the differential, an extended-range series hybrid power working mode is completed, the motor is used as main driving power, braking energy feedback is realized, the engine can work in the series hybrid power mode and the extended-range mode, and the generator completes battery charging; when the vehicle runs at high speed (the running speed of the vehicle is higher than 70km \ h), the running speed is a parallel hybrid mode, a vehicle controller, an extended range hybrid controller, a two-gear-four-gear transmission controller and a motor controller are respectively connected with a DSP through CAN communication, a rotating speed sensor, a mechanical coupler, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid control module, an engine, a generator, a synchronizer mechanical coupler, a mechanical coupler operating mechanism, a mechanical coupler, a synchronizer mechanical coupler, a differential mechanism, a synchronizer mechanical coupler, a rotating speed sensor and a power supply module, wherein the two-gear-four-gear transmission controller and the motor controller are respectively connected with the DSP through CAN communication, the rotating speed sensor is connected with the DSP, the high-speed motor acceleration control module, the transmission switching control module, the electromechanical coupling control module, the hybrid control, The motor is connected with the differential through the transmission, the synchronizer mechanical coupler is connected with the power of the motor and the power of the engine through the transmission to finish mechanical power coupling, the power is output through the differential, a parallel hybrid power working mode is finished, the cruising speed is mainly based on the engine, the motor is assisted by uphill power, accelerating power, braking energy feedback and the generator keeps the optimal state of the SOC of the battery.
Specifically, the engine is connected with the generator, the engine is connected with the mechanical coupler of the synchronizer, the mechanical coupler of the synchronizer is connected with the front differential, the mechanical coupler of the synchronizer is connected with the rotating speed sensor, the motor is connected with the rear differential through the transmission, the power of the engine is transmitted by the mechanical coupler of the synchronizer, the front differential passes through the front wheels, the rear differential and the transmission, the mechanical power coupling is completed, the engine outputs power through the front differential, and the motor outputs power through the rear differential.
Further, the engine is connected with the generator, the engine is connected with the external gear of the gear mechanical coupler, the internal gear of the gear mechanical coupler is connected with the differential through the gear shaft, the motor is connected with the differential through the transmission, the gear mechanical coupler is connected with the power of the motor and the power of the engine through the transmission, mechanical power coupling is completed, and the power is output through the differential.
The engine is connected with the generator, the engine is connected with the external gear of the gear mechanical coupler, the internal gear of the gear mechanical coupler is connected with the front differential, the internal gear of the gear mechanical coupler is connected with the rotating speed sensor, the motor is connected with the rear differential through the transmission, the power of the engine is transmitted by the front differential of the gear mechanical coupler through the front wheels, the rear differential and the transmission, the mechanical power coupling is completed, the engine outputs power through the front differential, and the motor outputs power through the rear differential.
A control method of a range-extending series-parallel hybrid power adaptive control system is characterized in that: the adaptive control system for the extended-range series-parallel hybrid power is characterized in that a DSP (digital signal processor) controls and executes a part to operate the combination and disconnection of a mechanical coupler through the mechanical coupler so as to achieve the control mode of the extended-range series-parallel hybrid power, and specifically comprises the following steps: the whole vehicle controller, the range-extended hybrid power controller, the transmission controller, the motor controller are respectively connected with the DSP through CAN communication, the rotating speed sensor, the mechanical coupler controller is connected with the DSP, the high-speed motor acceleration control module, the transmission switching control module, the electromechanical coupling control module, the hybrid power control module is connected with the DSP, the mechanical coupler controller is connected with the mechanical coupler operating mechanism, the mechanical coupler operating mechanism is connected with the mechanical coupler, the engine is connected with the generator, the engine is connected with the mechanical coupler synchronizer, the mechanical coupler synchronizer is connected with the differential through a gear shaft, the mechanical coupler synchronizer is connected with the rotating speed sensor, the motor is connected with the differential through the transmission, the mechanical coupler synchronizer is connected with the motor power and the engine power through the transmission, And completing mechanical power coupling and outputting power through a differential.
The engine is connected with the generator, the engine is connected with the mechanical coupler synchronizer, the mechanical coupler synchronizer is connected with the front differential mechanism, the mechanical coupler synchronizer is connected with the rotating speed sensor, the motor is connected with the rear differential mechanism through the transmission, the engine power is connected with the motor power through the mechanical coupler synchronizer front differential mechanism through the front wheels, the rear differential mechanism and the transmission, the mechanical power coupling is completed, the engine outputs power through the front differential mechanism, and the motor outputs power through the rear differential mechanism.
The engine is connected with the generator, the engine is connected with the external gear of the mechanical coupler, the internal gear of the mechanical coupler is connected with the differential through the gear shaft, the motor is connected with the differential through the transmission, the synchronizer of the mechanical coupler is connected with the power of the motor and the power of the engine through the transmission, the mechanical power coupling is completed, and the power is output through the differential.
The engine is connected with the generator, the engine is connected with the external gear of the mechanical coupler, the internal gear of the mechanical coupler is connected with the front differential, the internal gear of the mechanical coupler is connected with the rotating speed sensor, the motor is connected with the rear differential through the transmission, the power of the engine is connected with the power of the motor through the front differential of the mechanical coupler, the front wheels, the rear differential and the transmission, the mechanical power coupling is completed, the engine outputs power through the front differential, and the motor outputs power through the rear differential.
The invention has the beneficial effects that: the method has the advantages of increasing the endurance mileage of the new energy automobile, solving the problem of low efficiency of the parallel hybrid electric vehicle, solving the mileage anxiety disorder of the pure electric automobile, prolonging the service life of the battery, solving the problem of low-temperature heating of the lithium battery, improving the comfort of the new energy automobile, expanding the application range of the new energy automobile, breaking through the market bottleneck of the pure electric automobile at the present stage, improving the system efficiency of the new energy automobile, reducing the oil consumption, saving energy and reducing emission, meeting the actual condition of the Chinese market and the requirements of Chinese consumer groups, improving the technical level of the Chinese new energy automobile and the competitiveness of the international market, and promoting the development of the new energy automobile market.
The invention will be described in more detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of an integrated synchronizer mechanical coupler hybrid architecture.
FIG. 2 is a schematic diagram of a mechanical coupler hybrid power structure of a front-drive and rear-drive synchronizer of an engine and an electric motor.
Fig. 3 is a schematic diagram of a hybrid power structure of the integrated gear mechanical coupler.
FIG. 4 is a schematic diagram of a hybrid power structure of a mechanical coupler of a front-drive gear and a rear-drive gear of an engine.
FIG. 5 is a block diagram of an adaptive control system for extended range series-parallel hybrid power.
Fig. 6 is a schematic view of the mechanical coupler operating mechanism.
In the figure: 1. the engine, 2. the generator, 3. the mechanical coupler of the synchronizer, 4. the gear shaft, 5. the differential mechanism, 6. the rotational speed sensor, 7. the electric motor, 8. the speed changer, 9. the front differential mechanism, 10. the rear differential mechanism, 11. the external gear, 12. the internal gear of the mechanical coupler of the gear.
Detailed Description
The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In embodiment 2, as shown in fig. 2, the engine 1 is connected to the generator 2, the engine 1 is connected to the synchronizer mechanical coupler, the synchronizer mechanical coupler is connected to the front differential 9, the synchronizer mechanical coupler is connected to the rotation speed sensor 6, the electric motor 7 is connected to the rear differential 10 through the transmission 8, the power of the engine 1 is transmitted from the synchronizer mechanical coupler front differential 9 through the front wheels, the rear differential 10, the transmission 8 is connected to the power of the electric motor 7, the mechanical power coupling is completed, the engine 1 outputs power through the front differential 9, and the electric motor 7 outputs power through the rear differential 10.
Embodiment 4, as shown in fig. 4, the engine 1 is connected to the generator 2, the engine 1 is connected to the external gear 11 of the gear mechanical coupler, the internal gear 12 of the gear mechanical coupler is connected to the front differential 9, the internal gear 12 of the gear mechanical coupler is connected to the rotation speed sensor 6, the electric motor 7 is connected to the rear differential 10 through the transmission 8, the power of the engine 1 is coupled by the gear mechanical coupler, the front differential 9, the front wheel, the rear differential 10, and the transmission 8 is connected to the power of the electric motor 7, the mechanical power coupling is completed, the engine 1 outputs the power through the front differential 9, and the electric motor 7 outputs the power through the rear differential 5.
a parallel hybrid mode; the engine 1 is connected with the generator 2, the engine 1 is connected with a synchronizer mechanical coupler, the synchronizer mechanical coupler is connected with a front differential mechanism 9, the synchronizer mechanical coupler is connected with a rotating speed sensor 6, the motor 7 is connected with a rear differential mechanism 10 through a transmission 8, the power of the engine 1 is transmitted to the synchronizer mechanical coupler, the front differential mechanism 9 is transmitted to the motor 7 through a front wheel, a rear wheel, the rear differential mechanism 10 and the transmission 8, the mechanical power coupling is completed, the engine 1 outputs the power through the front differential mechanism 9, and the motor 7 outputs the power through the rear differential mechanism 10; the range-extending series hybrid power mode is characterized in that an engine 1 is connected with a generator 2, and a motor 7 is connected with a rear differential 10 through a transmission 8 to output power;
a parallel hybrid mode; the engine 1 is connected with the generator 2, the engine 1 is connected with the external gear 11 of the gear mechanical coupler, the internal gear 12 of the gear mechanical coupler is connected with the differential 5 through the gear shaft 4, the motor 7 is connected with the differential 5 through the transmission 8, the gear mechanical coupler is connected with the power of the motor 7 and the power of the engine 1 through the transmission 8, the mechanical power coupling is completed, and the power is output through the differential 5; the extended range series hybrid power mode is characterized in that an engine 1 is connected with a generator 2, and a motor 7 is connected with a differential 5 through a transmission 8 to output power;
a parallel hybrid mode; the engine 1 is connected with the generator 2, the engine 1 is connected with the gear mechanical coupler outer gear 11, the gear mechanical coupler inner gear 12 is connected with the front differential mechanism 9, the gear mechanical coupler inner gear 12 is connected with the rotating speed sensor 6, the motor 7 is connected with the rear differential mechanism 10 through the transmission 8, the power of the engine 1 is transmitted by the gear mechanical coupler, the front differential mechanism 9, the front wheel, the rear differential mechanism 10 and the transmission 8 are connected with the power of the motor 7, the mechanical power coupling is completed, the engine 1 outputs the power through the front differential mechanism 9, and the motor 7 outputs the power through the rear differential mechanism 10; the method comprises the steps of a range-extending series hybrid power mode, wherein an engine 1 is connected with a generator 2, a motor 7 is connected with a rear differential 10 through a transmission 8 to output power, the engine 1 is connected with an external gear of a mechanical coupler, an internal gear of the mechanical coupler is connected with a front differential 9, an internal gear of the mechanical coupler is connected with a rotation speed sensor 6, the motor 7 is connected with the rear differential 10 through the transmission 8, the power of the engine 1 is connected with the power of the motor 7 through the front differential 9 of the mechanical coupler, the front wheels, the rear differential 10 and the transmission 8 to complete mechanical power coupling, the engine 1 outputs power through the front differential 9, and the motor 7 outputs power through the rear differential 10.
The working principle and the working process of the invention are as follows:
1. and the rotating speed sensor is used for detecting the rotating speed at the other end of the mechanical coupler, comparing the rotating speed with the rotating speed of the engine, calculating the optimal combination rotating speed difference of the mechanical coupler and improving the smoothness during combination.
2. The mechanical coupler controls, operates the mechanism through the mechanical coupler, controls the coupling and the decoupling of the coupler.
3. The CAN communication is communicated with the vehicle control unit, the range-extended hybrid power controller, the transmission controller and the motor controller through a CAN bus, information is transmitted, a control instruction is sent, and the control function of the range-extended series-parallel hybrid power is completed.
4. The high-speed motor acceleration control module monitors the current running speed of the vehicle and the change of an accelerator pedal in real time when the vehicle runs under the working condition of parallel hybrid power, and when the accelerator pedal outputs an acceleration signal, the high-speed motor acceleration control module quickly checks the acceleration characteristic of the engine under the working condition, sends an instruction to control the acceleration of the motor, completes the control of the rotating speed corresponding to the accelerator pedal, detects the motor parameter of the engine in real time, adaptively controls the power distribution and the acceleration characteristic of the engine and the motor, and improves the system efficiency. When the accelerator pedal outputs a deceleration signal, the engine is mainly used for realizing deceleration operation, the motor performs follow-up deceleration according to the power ratio of 5-10 percent, and the corresponding rotation speed control of the accelerator pedal is completed.
5. The transmission switching control module calculates the optimal speed change time according to the current running working condition and speed of the vehicle, the range extension, the series hybrid, the parallel hybrid and the transmission mathematical model, sends an instruction, and is controlled by the speed change controller in real time, so that the working conditions of the engine and the motor are controlled in a self-adaptive mode, and the system efficiency is improved.
6. And when the vehicle is converted from range extension and series hybrid to parallel hybrid, the electromechanical coupling control module controls and adjusts the rotating speed and power of the engine and the rotating speed and power of the motor according to the rotating speed and the rotating speed sensor, selects the optimal combination time, controls the motor operating mechanism through the mechanical coupler and controls the combination of the coupler. When the vehicle is switched from parallel hybrid to range-extending hybrid and series hybrid, the electromechanical coupling control module controls and adjusts the rotating speed and power of the engine and the rotating speed and power of the motor according to the rotating speed and the rotating speed sensor of the engine and selects the optimal disconnection time, and controls the motor operating mechanism and the disconnection of the coupler through the mechanical coupler. The combination and disconnection of the electromechanical coupler are controlled adaptively, the mechanical loss of the electromechanical coupler is reduced, and the service life of the electromechanical coupler is prolonged.
7. The hybrid power control module can be used for manually switching the range extension, the series hybrid and the parallel hybrid by a function switch, and also can be used for automatically switching the range extension, the series hybrid and the parallel hybrid. When the hybrid power control module works in the automatic mode, the hybrid power control module can select and switch the range-extending, series hybrid and parallel hybrid working modes according to seasons, time, ambient temperature and vehicle running speed and the hybrid power control model. 1) The range extender has a range extender working mode, the range extender mainly generates electricity at the moment, works in a highest efficiency area, the engine automatically stops working when the range extender is fully charged, and automatically reduces the rotating speed of the engine and the output current of the range extender when the motor is subjected to energy feedback braking, so that the battery is prevented from being damaged by overlarge charging current of the battery, the use cost of the automobile is reduced, the system efficiency is improved, the service life of the battery is prolonged, and the mileage anxiety disorder of the electric automobile is solved. 2) The hybrid power generation system comprises a series hybrid working mode, a winter working mode and a working mode in which the ambient temperature is below 10 ℃, when an engine generates power and heats simultaneously, heat supplies heat for the interior of a vehicle, and when the temperature is relatively low, battery heating is supplied. And the power supply is provided for the air conditioner compressor at high temperature in summer, and the battery consumption is reduced. When the electric vehicle runs for 60 miles or so in a suburb continuously, sufficient electric power can be provided, the engine cannot be started frequently, the use comfort of the electric vehicle is improved, the use range of the electric vehicle is expanded, and the cycle service life of the battery is prolonged. 3) The hybrid power system comprises a parallel hybrid power working mode, an engine, a generator, a battery, a motor, a parallel hybrid power mathematical model and a parallel hybrid power mathematical model, wherein the engine works in a high-efficiency area, the engine is driven mainly, the motor is driven secondarily, the generator outputs certain electric power to charge the battery and simultaneously supply power to the motor, the hybrid power ratio of the engine and the motor is calculated by the parallel hybrid power mathematical model, the working conditions of the engine and the motor are controlled in an adaptive mode, the efficiency of a hybrid power automobile is improved, the dynamic property of the hybrid power automobile is improved, and the cost performance of the hybrid power automobile is.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the design of the present invention should fall within the protection scope defined by the claims of the present invention.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (5)
1. A self-adaptive control system of extended range series-parallel hybrid power is characterized in that: the system comprises a vehicle control unit, an extended-range hybrid power controller, a two-gear-four-gear transmission controller, a motor controller, a rotating speed sensor, a mechanical coupler controller, a DSP (digital signal processor), a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module, a CAN (controller area network) communication, a synchronizer mechanical coupler, a mechanical coupler operating mechanism, a transmission and a differential mechanism; when the vehicle runs at low speed of less than 70km \ h, the vehicle is in a range-extended series hybrid mode, a vehicle control unit, a range-extended hybrid controller, a two-gear-four-gear transmission controller and a motor controller are respectively connected with a DSP through CAN communication, a rotating speed sensor, a mechanical coupler controller and the DSP are connected, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid control module and the DSP are connected, an engine is connected with a generator, the motor is connected with a differential through a transmission, power is output through the differential, the range-extended series hybrid working mode is completed, the motor is main driving power, braking energy feedback is realized, the engine CAN work in the series hybrid mode and the range-extended mode, and the generator completes battery charging; when the vehicle runs at high speed, the speed is higher than 70km \ h; the system is a parallel hybrid power mode, a vehicle control unit, an extended range hybrid power controller, a two-gear-four-gear transmission controller, a motor controller is respectively connected with a DSP through CAN communication, a rotating speed sensor, a mechanical coupler control is connected with the DSP, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module is connected with the DSP, an engine is connected with a generator, the engine is connected with a synchronizer mechanical coupler, the mechanical coupler control is connected with a mechanical coupler operating mechanism, the mechanical coupler operating mechanism is connected with a synchronizer mechanical coupler, the synchronizer mechanical coupler is connected with a differential through a gear shaft, the synchronizer mechanical coupler is connected with the rotating speed sensor, the motor is connected with the differential through a transmission, the synchronizer mechanical coupler is connected with a motor power and a power engine through a transmission, The hybrid power system completes mechanical power coupling, outputs power through a differential mechanism, completes a parallel hybrid power working mode, takes an engine as a main cruising speed, takes a motor as an auxiliary upslope power, accelerates power, feeds back braking energy and keeps the optimal state of the SOC of a battery through a generator.
2. The extended range series-parallel hybrid adaptive control system of claim 1, wherein: the engine is connected with the generator, the engine is connected with the mechanical coupler of the synchronizer, the mechanical coupler of the synchronizer is connected with the front differential mechanism, the mechanical coupler of the synchronizer is connected with the rotating speed sensor, the motor is connected with the rear differential mechanism through the transmission, the power of the engine is transmitted by the mechanical coupler of the synchronizer, the front differential mechanism is connected with the power of the front wheels, the rear wheels and the rear differential mechanism, the transmission is connected with the power of the motor, the mechanical power coupling is completed, the engine outputs power through the front differential mechanism, and the motor outputs power through the rear differential mechanism.
3. A self-adaptive control system of extended range series-parallel hybrid power is characterized in that: the system comprises a vehicle control unit, an extended-range hybrid power controller, a two-gear-four-gear transmission controller, a motor controller, a rotating speed sensor, a mechanical coupler controller, a DSP (digital signal processor) digital processor, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module, CAN (controller area network) communication, a gear mechanical coupler, a mechanical coupler operating mechanism, a transmission and a differential mechanism; when the vehicle runs at low speed of less than 70km \ h, the vehicle is in a range-extended series hybrid mode, a vehicle control unit, a range-extended hybrid controller, a two-gear-four-gear transmission controller and a motor controller are respectively connected with a DSP through CAN communication, a rotating speed sensor, a mechanical coupler controller and the DSP are connected, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid control module and the DSP are connected, an engine is connected with a generator, the motor is connected with a differential through a transmission, power is output through the differential, the range-extended series hybrid working mode is completed, the motor is main driving power, braking energy feedback is realized, the engine CAN work in the series hybrid mode and the range-extended mode, and the generator completes battery charging; when the vehicle runs at a high speed of more than 70 km/h, the vehicle is in a parallel hybrid power mode, a vehicle control unit, an extended-range hybrid power controller, a two-gear-four-gear transmission controller, a motor controller is respectively connected with a DSP (digital signal processor) through CAN (controller area network) communication, a rotating speed sensor, a mechanical coupler controller, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module, an engine and a generator, the engine is connected with a gear mechanical coupler, the mechanical coupler is connected with a mechanical coupler operating mechanism, the mechanical coupler operating mechanism is connected with a gear mechanical coupler, the gear mechanical coupler is connected with a differential through a gear shaft, the gear mechanical coupler is connected with the rotating speed sensor, the motor is connected with the differential through the transmission, a speed sensor, The gear mechanical coupler is connected with the power of a motor and the power of an engine through a speed changer to finish mechanical power coupling, the power is output through a differential mechanism to finish a parallel hybrid power working mode, the cruising speed is mainly achieved by the engine, the motor is assisted by uphill power, accelerating power, braking energy feedback and the generator keeps the SOC optimal state of a battery.
4. The extended range series-parallel hybrid adaptive control system of claim 3, wherein: the engine is connected with the generator, the engine is connected with the external gear of the gear mechanical coupler, the internal gear of the gear mechanical coupler is connected with the front differential, the internal gear of the gear mechanical coupler is connected with the rotating speed sensor, the motor is connected with the rear differential through the transmission, the power of the engine is connected with the power of the motor through the gear mechanical coupler, the front differential, the front wheels, the rear differential and the transmission, the mechanical power coupling is completed, the engine outputs power through the front differential, and the motor outputs power through the rear differential.
5. A control method of a range-extending series-parallel hybrid power adaptive control system is characterized in that: the self-adaptive control system for the range-extending series-parallel hybrid power is characterized in that a DSP (digital signal processor) controls and operates the combination and separation of a synchronizer mechanical coupler through the mechanical coupler to achieve the control mode of the range-extending series-parallel hybrid power, and specifically comprises the following steps: the whole vehicle controller, the range-extended hybrid power controller, the transmission controller, the motor controller are respectively connected with the DSP through CAN communication, the rotating speed sensor, the mechanical coupler controller is connected with the DSP, the high-speed motor acceleration control module, the transmission switching control module, the electromechanical coupling control module, the hybrid power control module is connected with the DSP, the mechanical coupler controller is connected with the mechanical coupler operating mechanism, the mechanical coupler operating mechanism is connected with the synchronizer mechanical coupler, the engine is connected with the generator, the engine is connected with the synchronizer mechanical coupler, the synchronizer mechanical coupler is connected with the differential through a gear shaft, the synchronizer mechanical coupler is connected with the rotating speed sensor, the motor is connected with the differential through the transmission, the synchronizer mechanical coupler is connected with the motor power and the engine power through the transmission, the motor power and the engine power are connected through the transmission, the speed sensor is connected with the transmission, The DSP controls and operates the mechanical coupler operating mechanism through the mechanical coupler, completes the combination and separation of the synchronizer mechanical coupler, and can control the switching of the extended range type series hybrid power mode and the parallel hybrid power mode; when the vehicle runs at low speed of less than 70km \ h, the vehicle is in a range-extended series hybrid mode, a vehicle control unit, a range-extended hybrid controller, a two-gear-four-gear transmission controller and a motor controller are respectively connected with a DSP through CAN communication, a rotating speed sensor, a mechanical coupler controller and the DSP are connected, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid control module and the DSP are connected, an engine is connected with a generator, the motor is connected with a differential through a transmission, power is output through the differential, the range-extended series hybrid working mode is completed, the motor is main driving power, braking energy feedback is realized, the engine CAN work in the series hybrid mode and the range-extended mode, and the generator completes battery charging; when the vehicle runs at a high speed of more than 70km \ h, the vehicle is in a parallel hybrid power mode, a vehicle control unit, an extended-range hybrid power controller, a two-gear-four-gear transmission controller, a motor controller is respectively connected with a DSP through CAN communication, a rotating speed sensor, a mechanical coupler controller is connected with the DSP, a high-speed motor acceleration control module, a transmission switching control module, an electromechanical coupling control module, a hybrid power control module is connected with the DSP, an engine is connected with a generator, the engine is connected with a synchronizer mechanical coupler, a mechanical coupler controller is connected with a mechanical coupler operating mechanism, a mechanical coupler operating mechanism is connected with a synchronizer mechanical coupler, the synchronizer mechanical coupler is connected with a differential through a gear shaft, the synchronizer mechanical coupler is connected with the rotating speed sensor, the motor is connected with the differential through a transmission, The synchronizer mechanical coupler is connected with the power of a motor and the power of an engine through a speed changer, completes mechanical power coupling, outputs power through a differential mechanism, completes a parallel hybrid power working mode, takes the engine as a main cruising speed, takes the motor as an auxiliary upslope power, accelerates power, brakes energy feedback and keeps the optimal state of the SOC of a battery by a generator;
a parallel hybrid mode; the engine is connected with the generator, the engine is connected with the synchronizer mechanical coupler, the synchronizer mechanical coupler is connected with the front differential mechanism, the synchronizer mechanical coupler is connected with the rotating speed sensor, the motor is connected with the rear differential mechanism through the transmission, the power of the engine is transmitted by the synchronizer mechanical coupler, the front differential mechanism is transmitted by the front wheels, the rear differential mechanism and the transmission to be connected with the power of the motor, the mechanical power coupling is completed, the engine outputs power through the front differential mechanism, and the motor outputs power through the rear differential mechanism; the range-extending series hybrid power mode is characterized in that an engine is connected with a generator, and a motor is connected with a rear differential through a transmission to output power;
a parallel hybrid mode; the engine is connected with the generator, the engine is connected with the external gear of the gear mechanical coupler, the internal gear of the gear mechanical coupler is connected with the differential through the gear shaft, the motor is connected with the differential through the transmission, the gear mechanical coupler is connected with the power of the motor and the power of the engine through the transmission, the mechanical power coupling is completed, and the power is output through the differential; the range-extending series hybrid power mode is characterized in that an engine is connected with a generator, and a motor is connected with a differential through a transmission to output power;
a parallel hybrid mode; the engine is connected with the generator, the engine is connected with an external gear of the gear mechanical coupler, an internal gear of the gear mechanical coupler is connected with the front differential mechanism, an internal gear of the gear mechanical coupler is connected with the rotating speed sensor, the motor is connected with the rear differential mechanism through the transmission, the power of the engine is connected with the power of the motor through the gear mechanical coupler, the front differential mechanism, the front wheels, the rear differential mechanism and the transmission, the mechanical power coupling is completed, the engine outputs power through the front differential mechanism, and the motor outputs power through the rear differential mechanism; the range-extending series hybrid power mode is characterized in that an engine is connected with a generator, and a motor is connected with a rear differential through a transmission to output power.
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