CN101817343B - Intelligent braking system - Google Patents

Intelligent braking system Download PDF

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Publication number
CN101817343B
CN101817343B CN 201010146562 CN201010146562A CN101817343B CN 101817343 B CN101817343 B CN 101817343B CN 201010146562 CN201010146562 CN 201010146562 CN 201010146562 A CN201010146562 A CN 201010146562A CN 101817343 B CN101817343 B CN 101817343B
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China
Prior art keywords
microcontroller
brake
thyristor
fuel injector
switch
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Expired - Fee Related
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CN 201010146562
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Chinese (zh)
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CN101817343A (en
Inventor
黄菊花
朱洪涛
吴晶晶
张键
曹铭
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Nanchang University
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Nanchang University
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Priority to CN 201010146562 priority Critical patent/CN101817343B/en
Publication of CN101817343A publication Critical patent/CN101817343A/en
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Publication of CN101817343B publication Critical patent/CN101817343B/en
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  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The invention relates to an intelligent braking system. A speed sensor, a pedal acceleration sensor, a fuel injector electronic control unit, a lever-type electromagnetic actuator, namely a brake actuating mechanism, and an actuator for stopping oil supply for an injection pump are arranged in the conventional system. Compared with the conventional system, the system has incomparable security, namely, at the vehicle speed less than 60 km/h, brake can be realized when a driver encounters emergency to step on the accelerator mistakenly so that a traffic accident is avoided. However, when the speed is more than 60 km/h, the emergency brake and the accelerator realize the functions respectively.

Description

Intelligent braking system
Technical field
The present invention relates to the brake system of automobile, particularly travel in the brake system of bustling urban district automobile.
Background technology
Along with science and technology development, various sensors, Vehicle radar, microprocessor, electron controls technology has obtained utilization widely on mechanical engineering technology and auto transport.
Automobile is as modern times a kind of transport facility of paramount importance, its safety is subject to people's attention always, 60 kilometers of the fixed city F-Zeros of traffic law, because new hand's chaufeur number is more and more and the complexity of urban road, emergency case forces emergency brake inevitable.Because now brake on the automobile and throttle be all by right crus of diaphragm control, in case run into accident, flurried in " throttle is mistakened as brake " be recurrent, this also is the one of the main reasons that causes the traffic accident generation.For fear of the generation of this type of accident, a intelligent braking system of automotive market active demand.Existing brake system mainly is based on radar ranging and stops by force, does not consider the factor of the speed of a motor vehicle or high-speed passing, can not solve " mis-accelerator pressing is when brake " and causes the problem of traffic accident.
Summary of the invention
Purpose of the present invention is that the urgent mis-accelerator pressing of chaufeur also can be realized the problem of brake function in the time of will solving the automobile speed that travels in the urban road less than 60km/h.Consider the different road conditions of urban road and express highway, during greater than 60km/h, chaufeur emergency brake and throttle are realized function separately at automobile speed.
The technical scheme that the present invention takes is: installation rate sensor before microcontroller on the automobile, detect the moving velocity of automobile, the pedal acceleration pick-up that links with microcontroller is installed under throttle, this sensor can only be when violent step on the accelerator could output signal, in brake system a lever electromagnetic actuator that links with microcontroller being installed is brake actuating mechanism, between microcontroller and automotive engine fuel injector electronic control unit is set; Described fuel injector electronic control unit is made of thyristor, normally closed contact, firing circuit power supply, relay, switch, resistance; Three connection leads that relay J is drawn, one is connected with the end of thyristor D, T and the lead-in wire of wire fuse F one end, one is connected with resistance R one end, the thyristor D other end, the wire fuse F other end and firing circuit power supply IG, and the 3rd lead-in wire of relay J is connected with normally closed contact A, B; The resistance R other end, the thyristor T other end are connected with K switch, and thyristor T one end is connected back ground connection with K switch.
The stop control lever actr of installing on the fuel injection pump housing can adopt electromagnetic valve switch, also can adopt the control injection pump rack, or shuts down the handle method.
The invention has the beneficial effects as follows;
(1) speed of a motor vehicle that detects when speed sensor is less than 60km/h, and the Das Gaspedal acceleration/accel that detects of pedal acceleration pick-up is during greater than specific value, and gas plays braking action;
When (2) moveing backward or travelling, radar detection is to there being obstacle, and the Das Gaspedal acceleration/accel that detects of pedal acceleration pick-up is during greater than specific value, and gas plays braking action;
When (3) travelling, radar detection is to there being obstacle, but the Das Gaspedal acceleration/accel that the pedal acceleration pick-up detects is during less than specific value, and the throttle of automobile and brake keep effect separately;
(4) when the speed of a motor vehicle of sensor greater than 60km/h, but the Das Gaspedal acceleration/accel that the pedal acceleration pick-up detects is during less than specific value, the throttle of automobile and brake keep effect separately.
Description of drawings
Fig. 1 is the intelligent braking system scheme drawing.
Fig. 2 is the fuel injector electronic control unit scheme drawing.
Among Fig. 2, A, B normally closed contact D, T thyristor IG firing circuit power supply J relay K switch R resistance
The specific embodiment
Specified below in conjunction with accompanying drawing 1 and Fig. 2:
In Fig. 1, when automobile travels with the speed that is lower than 60km/h on highway, need emergency brake if run into emergency case, this moment, speed sensor was delivered to microcontroller with signal, when the driver when hiding that danger is wrong to be used as throttle brake and to floor, the pedal acceleration pick-up throttle under has signal and is sent to microcontroller, when two signals are just in time identical, microcontroller sends instruction, makes fuel injector electronic control unit work.Fuel injector electronic control unit.Force driving engine to quit work.Meanwhile, microcontroller sends instruction and gives brake actuating mechanism, and automobile brake system works rapidly, brakes.
In Fig. 2, when mis-accelerator pressing occurring when brake, the power on the Das Gaspedal of being applied to is much larger than 100N, the pressure switch sensor changes closure state into by normally open, thyristor (T) the control utmost point obtains the energizing signal conducting, drive the electromagnetic valve action of brake pedal draw gear, realize forced brake; Simultaneously, relay (J) adhesive of control fuel injector power supply disconnects two normally closed contacts (A), (B) that are connected the fuel injector power supply, has cut off the fuel injector power supply, forces driving engine flame-out immediately.Because the trigger characteristic of thyristor makes circuit be in self-locking state naturally.Even chaufeur reduces immediately or cancels the power that is applied on the Das Gaspedal, make the pressure switch sensor get back to normally open, still can not make system withdraw from the mandatory protection state, thereby prevent the generation once more of accident.

Claims (3)

1. intelligent braking system, it is characterized in that: this system comprises radar equipment, microcontroller, speed sensor, brake actuating mechanism, fuel injector electronic control unit, pedal acceleration sensor, throttle, brake system, stop control lever actr; End installation rate sensor arranged side by side and radar equipment before the microcontroller of system, the pedal acceleration pick-up that links with microcontroller is installed below throttle, between microcontroller and automotive engine, fuel injector electronic control unit is installed, it is brake actuating mechanism that a lever electromagnetic actuator that links with microcontroller is set in brake system, in injection pump inflow point the stop control lever actr is installed.
2. intelligent braking system according to claim 1 is characterized in that: described fuel injector electronic control unit is by thyristor D, T, normally closed contact A, B, and firing circuit power supply IG, relay J, K switch, resistance R constitutes; Three connection leads that relay J is drawn, one is connected with the end of thyristor D, T and the lead-in wire of wire fuse F one end, one is connected with resistance R one end, the thyristor D other end, the wire fuse F other end and firing circuit power supply IG, and the 3rd lead-in wire of relay J is connected with normally closed contact A, B; The resistance R other end, the thyristor T other end are connected with K switch, and crystalline substance is explained pipe T one end and is connected back ground connection with K switch.
3. intelligent braking system according to claim 1 is characterized in that: described injection pump stop control lever actr is to adopt electromagnetic valve switch, control injection pump rack or shut down the handle method.
CN 201010146562 2010-04-14 2010-04-14 Intelligent braking system Expired - Fee Related CN101817343B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010146562 CN101817343B (en) 2010-04-14 2010-04-14 Intelligent braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010146562 CN101817343B (en) 2010-04-14 2010-04-14 Intelligent braking system

Publications (2)

Publication Number Publication Date
CN101817343A CN101817343A (en) 2010-09-01
CN101817343B true CN101817343B (en) 2013-07-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103485912A (en) * 2013-09-27 2014-01-01 无锡商业职业技术学院 Oil pump switch

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101962017A (en) * 2010-09-20 2011-02-02 浙江吉利汽车研究院有限公司 Precaution system for avoiding misusing accelerator as brake
CN102180168A (en) * 2011-04-19 2011-09-14 东华大学 Device for preventing false accelerator stepping under condition in need of emergency braking
CN102582432B (en) * 2012-02-21 2015-04-08 奇瑞汽车股份有限公司 Method and device for preventing driver from treading accelerator pedal by accident
CN103921777A (en) * 2014-03-17 2014-07-16 南京市江宁区南科莱斯航空模型制造厂 Intelligent braking system
CN104260639A (en) * 2014-10-21 2015-01-07 吉林大学 Device for automatically converting into emergency brake when driver mistakes accelerator for brake to step on
CN106476813B (en) * 2015-08-25 2019-04-12 大陆汽车车身电子系统(芜湖)有限公司 The processing method of misoperation accelerator pedal
CN105291835A (en) * 2015-11-13 2016-02-03 莆田市云驰新能源汽车研究院有限公司 Automobile accelerator pedal mistaken-stepping-prevention system and method
CN106042924A (en) * 2016-05-27 2016-10-26 樊美平 Automobile mistaken tread preventing accelerator pedal control system and control method
CN112937523A (en) * 2021-03-22 2021-06-11 段述荣 Artificial intelligence remote control equipment

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN2892593Y (en) * 2005-07-13 2007-04-25 唐合法 Automatic intelligent braking device for motor vehicle
CN201261395Y (en) * 2008-08-27 2009-06-24 徐世贤 Intelligent brake system
DE102008018474A1 (en) * 2008-04-11 2009-11-12 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Driver assistance system for haptic warning of driver of e.g. small-sized passenger car, has hazard sensor connected with control unit, and brake actuators activated by control unit according to predetermined pattern
CN201736976U (en) * 2010-04-14 2011-02-09 南昌大学 Intelligent braking system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2892593Y (en) * 2005-07-13 2007-04-25 唐合法 Automatic intelligent braking device for motor vehicle
DE102008018474A1 (en) * 2008-04-11 2009-11-12 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Driver assistance system for haptic warning of driver of e.g. small-sized passenger car, has hazard sensor connected with control unit, and brake actuators activated by control unit according to predetermined pattern
CN201261395Y (en) * 2008-08-27 2009-06-24 徐世贤 Intelligent brake system
CN201736976U (en) * 2010-04-14 2011-02-09 南昌大学 Intelligent braking system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103485912A (en) * 2013-09-27 2014-01-01 无锡商业职业技术学院 Oil pump switch

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Granted publication date: 20130731

Termination date: 20160414