Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, one object of the present invention is the control method proposing a kind of pure electric automobile, and the method by software simulating, thus can avoid hardware fault on the impact of electronlmobil interlock function, thus ensures the safe driving of chaufeur.
Another object of the present invention is to the control system proposing a kind of pure electric automobile.
The present invention's the 3rd object is to propose a kind of pure electric automobile.
To achieve these goals, the embodiment of first aspect present invention proposes a kind of control method of pure electric automobile, comprise the following steps: battery management system, when charging wire access signal being detected, controls vehicle and enters charge mode, and send charge prompting signal to electric power controller; Described electric power controller controls vehicle and puts neutral gear and do not respond any gear signal, until when described vehicle exits charge mode, entire car controller judges whether the gear of gearshift changes; And if then gear signal corresponding for the gear after change is sent to electric power controller by described entire car controller, control vehicle to corresponding gear to make described electric power controller.
According to the control method of the pure electric automobile of the embodiment of the present invention, by software simulating, make pure electric automobile force when charging PEU to control vehicle and put neutral gear, do not respond the gear-change operation of chaufeur, thus vehicle cannot be driven, realize charging and interlock with driving.Hardware fault can be avoided like this on the impact of charging driving interlock function.And effective gear signal that controller sends is single low level pulse, the gear achieved after charging interlocking confirms function again, makes after charging terminates, and chaufeur must re-start engage a gear operation and just can drive a vehicle, thus avoids potential safety hazard.
In addition, the control method of pure electric automobile according to the above embodiment of the present invention can also have following additional technical characteristic:
In an embodiment of the present invention, under charge mode, when neutral gear put by described electric power controller control vehicle, send neutral gear information to instrument to point out user.
In an embodiment of the present invention, exit charge mode described in and refer to that described battery management system detects that charging wire and Vehicular charging mouth disconnect.
In an embodiment of the present invention, described entire car controller is sent to the gear signal of described electric power controller is single impulse singla.
The embodiment of second aspect present invention also proposed a kind of control system of pure electric automobile, comprise: entire car controller, electric power controller, battery management system and gearshift, wherein, described battery management system is used for charging wire access signal being detected, and after described charging wire access signal being detected, control vehicle and enter charge mode, and send charge prompting signal to electric power controller; Described electric power controller is used for after receiving described charge prompting signal, control vehicle put neutral gear and do not respond any gear signal, until after described vehicle exits charge mode, control vehicle to corresponding gear according to the gear signal that described entire car controller sends; And described entire car controller is used for when described vehicle exits charge mode, judge whether the gear of gearshift changes, and when judging that the gear of described gearshift changes, gear signal corresponding for the gear after changing is sent to electric power controller.
According to the control system of the pure electric automobile of the embodiment of the present invention, by software simulating, make pure electric automobile force when charging PEU to control vehicle and put neutral gear, do not respond the gear-change operation of chaufeur, thus vehicle cannot be driven, realize charging and interlock with driving.Hardware fault can be avoided like this on the impact of charging driving interlock function.And effective gear signal that controller sends is single low level pulse, the gear achieved after charging interlocking confirms function again, makes after charging terminates, and chaufeur must re-start engage a gear operation and just can drive a vehicle, thus avoids potential safety hazard.
In addition, the control system of pure electric automobile according to the above embodiment of the present invention can also have following additional technical characteristic:
In one embodiment of the invention, described control system also comprises: instrument, for showing the information such as gear, so that when neutral gear put by described electric power controller control vehicle, and prompting user.
In one embodiment of the invention, exit charge mode described in and refer to that described battery management system detects that charging wire and Vehicular charging mouth disconnect.
In one embodiment of the invention, described entire car controller is sent to the gear signal of described electric power controller is single impulse singla.
The embodiment of third aspect present invention also proposed a kind of pure electric automobile, comprises the control system of the described pure electric automobile that second aspect present invention embodiment proposes.
According to the pure electric automobile of the embodiment of the present invention, by software simulating, hardware fault can be avoided the impact of charging driving interlock function, thus avoid potential safety hazard.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, particular case above-mentioned term concrete meaning in the present invention can be understood.
First the control method of the pure electric automobile according to the embodiment of the present invention is described below in conjunction with accompanying drawing 1-3.
Fig. 1 is the diagram of circuit of the control method of pure electric automobile according to an embodiment of the invention.
As shown in Figure 1, according to the control method of the pure electric automobile of the embodiment of the present invention, comprise the following steps:
Step S101, battery management system, when detecting charging wire access signal, controls vehicle and enters charge mode, and send charge prompting signal to electric power controller.In other words, namely when user needs for charging electric vehicle, need charge port charging wire being linked into vehicle, now battery management system detects that charging wire connects, control electronlmobil and enter charge mode, for vehicle charging, the concurrent signal prompt electric power controller automobile that send now charges.
Step S102, electric power controller controls vehicle and puts neutral gear and do not respond any gear signal, until when vehicle exits charge mode, entire car controller judges whether the gear of gearshift changes.Namely electric power controller is after the cue receiving battery management system transmission, clear and definite now automobile charges, the gear of electronlmobil is then forced to be set to neutral gear, until electronlmobil exits charge mode, i.e. charging complete, now, entire car controller judges whether the gear of gears shifting device for automobile changes, in other words, namely judge whether chaufeur has gear shift action.Wherein, vehicle exits charge mode and refers to that battery management system detects that charging wire and Vehicular charging mouth disconnect.It should be noted that, vehicle is put neutral gear and is not responded any gear signal, in specific words, namely now the gear of vehicle is similar is in the lock state, and no matter now chaufeur performs the gear shift operation of any gear, does not all respond, keep neutral state until after Vehicular charging completes, just respond shift signal.
Further, under charge mode, electric power controller controls vehicle when putting neutral gear, sends neutral gear information to instrument, with point out user now automobile for neutral gear.Wherein, instrument is the display instrument of automobile, and it can the current multinomial information of display automobile, and chaufeur understands the much information of regarding Car by this display instrument, such as: chaufeur by instrumental observation to the current gear etc. of automobile.
Step S103, if so, then gear signal corresponding for the gear after change is sent to electric power controller by entire car controller, controls vehicle to corresponding gear to make electric power controller.Namely after charging complete, when entire car controller judges that the gear of gears shifting device for automobile changes, namely when chaufeur has a gear-change operation, then gear signal corresponding for the gear after change is sent to electric power controller by entire car controller, controls vehicle to corresponding gear to make electric power controller.Such as: when charging is complete, chaufeur is for being set to D shelves by gear from neutral gear, and now, the gear signal corresponding to D shelves is sent to the electric power controller of automobile by entire car controller, the gear of automobile is set to corresponding gear according to this gear signal by electric power controller, i.e. D shelves.Wherein, the gear signal that entire car controller is sent to electric power controller is an impulse singla, and preferably, this signal is a single low level pulse signal.
In the examples described above, it should be noted that, such as: before vehicle prepares charging, now the gear of vehicle is D shelves, then when vehicle starts to charge, electric power controller is forced file location empty, now forms interlocking state.Because this vehicle in front is in D shelves, and the gear signal collected is converted into single impulse singla by entire car controller, and therefore, after Vehicular charging completes, vehicle is still in neutral state.If chaufeur is wanted to drive automobile, then chaufeur needs to carry out gear-change operation by gearshift, now entire car controller gathers the gear signal of gear shift, and be translated into single low level pulse signal, and be sent to electric power controller, after electric power controller receives and confirms, could gear shift be realized, thus avoid the potential safety hazard produced because original speed position does not put sky in process of charging.
Fig. 2 is the charging driving interlock control schematic diagram of the control method of pure electric automobile according to an embodiment of the invention.
As shown in Figure 2, the charging driving interlock control involved by the method has following controller or parts jointly to realize.Comprise: gearshift, entire car controller VMS(Vehicle Management System), electric power controller PEU(Power Electronic Unit), battery management system BMS(Battery Management System) and instrument.Specifically, entire car controller VMS is connected by rigid line with gearshift, and entire car controller gathers gear signal by rigid line, and this gear signal is Low level effective signal; The gear signal of collection is converted to single impulse singla (Low level effective impulse singla) by entire car controller VMS, and issues electric power controller PEU by rigid line, and PEU controls motor action, realizes gear shift.Communication is carried out by RS232 between electric power controller PEU and battery management system BMS, under when charging wire is connected on vehicle, BMS informs that PEU vehicle is in charge mode, PEU controls vehicle and puts neutral gear and do not respond any gear signal, until vehicle exits charge mode (i.e. N shelves in Fig. 2); Battery management system BMS is by CAN and instrument communication, and send the status informations such as the gear of current automobile, charging to instrument to show, chaufeur understands above-mentioned information by instrument.
In above process, it should be noted that, such as: before vehicle prepares charging, now the gear of vehicle is D shelves, then when Vehicular charging, PEU forces file location empty, now forms interlocking state.Because this vehicle in front is in D shelves, and the gear signal collected is converted into single impulse singla by VMS, and therefore, after Vehicular charging completes, vehicle is still in neutral state.If chaufeur is wanted to drive automobile, then chaufeur needs to carry out gear-change operation by gearshift, now VMS gathers the gear signal of gear shift, and be translated into single low level pulse signal, and be sent to PEU, after PEU receives and confirms, could gear shift be realized, thus avoid the potential safety hazard produced because original speed position does not put sky in process of charging.
Fig. 3 is the diagram of circuit of the control method of pure electric automobile in accordance with another embodiment of the present invention.
As shown in Figure 3, the control method of pure electric automobile in accordance with another embodiment of the present invention, comprises the following steps:
Step S301, battery management system BMS enter charge mode after detecting that charging wire is linked into the charge port of vehicle, for electronlmobil charges.
Step S302, BMS inform electric power controller PEU now charging wire connect, vehicle enters charge mode, forces PEU that the gear of vehicle is set to neutral gear, and sends vehicle neutral gear signal and show to vehicular meter.Wherein, BMS is by sending relevant cue to inform that PEU vehicle enters charge mode.
Step S303, PEU receive the cue of " vehicle enters charge mode " that BMS sends, then vehicle is set to neutral state by PEU, no longer respond the pulse gear signal that entire car controller VMS sends simultaneously, namely no longer respond Vehicular shift operation, thus automobile cannot be driven, realize interlocking.
Step S304, charging wire goes out to disconnect from Vehicular charging mouth.
Step S305, after charging wire goes out to disconnect from Vehicular charging mouth, shows that now Vehicular charging completes, then BMS points out PEU vehicle to exit charge mode.
Step S306, PEU exit pressure neutral state.
Step S307, chaufeur re-starts engage a gear operation.Namely after Vehicular charging completes, if when chaufeur thinks driving, then chaufeur must re-start engage a gear operation.Such as: vehicle need be set to D shelves (D Drive) or R shelves (retrogressing shelves) from N shelves (neutral gear) by chaufeur, thus drive vehicle operating.
Step S308, after chaufeur again engage a gear, after entire car controller VMS detects corresponding gear signal, sends single low level pulse signal to PEU.Such as: chaufeur is D shelves for the gear arranged, then the low level pulse signal corresponding to transmission D shelves is to PEU.
Step S309, PEU respond above-mentioned corresponding gear signal, control motor action, automobile gears are set to this corresponding gear, and inform BMS.Such as: PEU responds the impulse singla of above-mentioned D shelves correspondence, and automobile is set to D shelves.
Step S310, BMS send corresponding gear signal value instrument and show.Namely the gear signal of now automobile is sent to auto meter by BMS, with display automobile gear information now to chaufeur.
Step S311, automobile is normally driven a vehicle.
According to the control method of the pure electric automobile of the embodiment of the present invention, by software simulating, make pure electric automobile force when charging PEU to control automobile and put neutral gear, do not respond the gear-change operation of chaufeur, thus vehicle cannot be driven, realize charging and interlock with driving.Hardware fault can be avoided like this on the impact of charging driving interlock function.And effective gear signal that controller sends is single low level pulse, the gear achieved after charging interlocking confirms function again, makes after charging terminates, and chaufeur must re-start engage a gear operation and just can drive a vehicle, thus avoids potential safety hazard.
Below in conjunction with accompanying drawing 4-5, the control system according to the pure electric automobile of the embodiment of the present invention is described.
Fig. 4 is the control system of pure electric automobile according to an embodiment of the invention.As shown in Figure 4, the control system 400 of pure electric automobile according to an embodiment of the invention, comprising: entire car controller 410, electric power controller 420, battery management system 430 and gearshift 440.
Wherein, battery management system 430 for detecting charging wire access signal, and after charging wire access signal being detected, controls vehicle and enters charge mode, and send charge prompting signal to electric power controller 420.In other words, namely when user needs for charging electric vehicle, need charge port charging wire being linked into vehicle, now battery management system 430 detects that charging wire accesses, control electronlmobil and enter charge mode, for vehicle charging, concurrent signal prompt electric power controller 420 automobile that send now charges.
Electric power controller 420, for after receiving charge prompting signal, controls vehicle and puts neutral gear and do not respond any gear signal, until after vehicle exits charge mode, controls vehicle to corresponding gear according to the gear signal that entire car controller 410 sends.Namely electric power controller 420 is after the cue receiving battery management system 430 transmission, clear and definite now automobile charges, then the gear of electronlmobil is set to neutral gear, until electronlmobil exits charge mode, i.e. charging complete, now, entire car controller 410 judges whether the gear of gears shifting device for automobile changes, and sending corresponding gear signal, then vehicle is set to corresponding gear by the gear signal that electric power controller 420 sends according to entire car controller 410.Wherein, vehicle exits charge mode and refers to that battery management system 430 detects that charging wire and Vehicular charging mouth disconnect.It should be noted that, vehicle is put neutral gear and is not responded any gear signal, in specific words, namely now the gear of vehicle is similar is in the lock state, and no matter now chaufeur performs the gear shift operation of any gear, does not all respond, keep neutral state until after Vehicular charging completes, just respond shift signal.
Entire car controller 410, for when vehicle exits charge mode, judges whether the gear of gearshift 440 changes, and when judging that the gear of gearshift 440 changes, gear signal corresponding for the gear after changing is sent to electric power controller 420.Namely after charging complete, when entire car controller 410 judges that the gear of gears shifting device for automobile 440 changes, namely when chaufeur has a gear-change operation, then gear signal corresponding for the gear after change is sent to electric power controller 420 by entire car controller 410, and vehicle is set to corresponding gear by the gear signal that electric power controller 420 sends according to entire car controller 410.Such as: when charging is complete, chaufeur is for being set to D shelves by gear from neutral gear, now, gear signal corresponding to D shelves is sent to the electric power controller 420 of automobile by entire car controller 410, the gear of automobile is set to corresponding gear according to this gear signal by electric power controller 420, i.e. D shelves.Wherein, the gear signal that entire car controller 410 is sent to electric power controller 420 is an impulse singla, and preferably, this signal is a single low level pulse signal.
In above-mentioned example, it should be noted that, such as: before vehicle prepares charging, now the gear of vehicle is D shelves, then when Vehicular charging, electric power controller 420 is forced file location empty, now forms interlocking state.Because this vehicle in front is in D shelves, and the gear signal collected is converted into single impulse singla by entire car controller 410, and therefore, after Vehicular charging completes, vehicle is still in neutral state.If chaufeur is wanted to drive automobile, then chaufeur needs to carry out gear-change operation by gearshift, now entire car controller 410 gathers the gear signal of gear shift, and be translated into single low level pulse signal, and be sent to electric power controller 420, after electric power controller 420 receives and confirms, could gear shift be realized, thus avoid the potential safety hazard produced because original speed position does not put sky in process of charging.
Further, as shown in Figure 5, according to the control system 400 of the pure electric automobile of the embodiment of the present invention, also comprise: instrument 450.Instrument 450 for showing the information such as gear so that electric power controller 420 control vehicle put neutral gear time, prompting user.Wherein, instrument 450 is the display instrument of automobile, and it can the current multinomial information of display automobile, and chaufeur understands the much information of regarding Car by this display instrument, such as: chaufeur observes the current gear etc. of automobile by instrument 450.
Wherein, in the examples described above, entire car controller 410 is connected by rigid line with gearshift 440, entire car controller 410 gathers gear signal by rigid line, and after the gear signal of collection being converted to single impulse singla (Low level effective impulse singla), issue electric power controller 420 by rigid line; Communication is carried out by RS232 between electric power controller 420 and battery management system 430; Battery management system 430 is by CAN and instrument communication.
According to the embodiment of the present invention the control system of pure electric automobile, by software simulating, make pure electric automobile force when charging PEU to control automobile and put neutral gear, and do not respond the gear-change operation of chaufeur, thus vehicle cannot be driven, realize charging and interlock with driving.Hardware fault can be avoided like this on the impact of charging driving interlock function.And effective gear signal that controller sends is single low level pulse, the gear achieved after charging interlocking confirms function again, makes after charging terminates, and chaufeur must re-start engage a gear operation and just can drive a vehicle, thus avoids potential safety hazard.
In addition, the invention allows for a kind of pure electric automobile, comprising: the control system 400 of the pure electric automobile that second aspect present invention embodiment proposes.
According to the pure electric automobile of the embodiment of the present invention, by software simulating, hardware fault can be avoided the impact of charging driving interlock function, thus avoid potential safety hazard.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.