CN105109475A - Electronic control parking device for automobiles - Google Patents
Electronic control parking device for automobiles Download PDFInfo
- Publication number
- CN105109475A CN105109475A CN201510524350.2A CN201510524350A CN105109475A CN 105109475 A CN105109475 A CN 105109475A CN 201510524350 A CN201510524350 A CN 201510524350A CN 105109475 A CN105109475 A CN 105109475A
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- Prior art keywords
- electromagnetic valve
- brake
- braking
- control unit
- oil circuit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention relates to an electronic control parking device for automobiles. A vehicle-instrument electronic control unit, an engine electronic control unit and a braking system control unit are respectively connected with an automobile CAN bus, and the automobile CAN bus, a CAN bus transceiver, a single-chip microcomputer and an output interface circuit are connected in sequence. The single-chip microcomputer is also connected with a gradient sensor, and the output interface circuit is also respectively connected with a motor, an electromagnetic valve III, an electromagnetic valve I, an electromagnetic valve II and a parking braking indicator lamp. The motor, a hydraulic pump, a braking accumulator and the electromagnetic valve III are connected in sequence, and the hydraulic pump is connected with the braking liquid storage tank. The electronic control parking device independently realizes gradient starting intelligent parking, idle speed intelligent parking and parking flameout intelligent parking in vehicle travel, does not interfere in a service braking system, reduces the operating strength of drivers, and improves the maneuverability, comfort and safety of vehicles.
Description
Technical field
The present invention relates to automobile automatic control technology field, particularly relate to a kind of automobile electric control parking device.
Background technology
At present, major part automobile adopts hydraulic braking mode to brake, by stepping on brake pedal during service brake, provide hydraulic oil to brake to brake wheel cylinder by master brake cylinder, braking during standstill then manually operates parking handle and takes mechanical pulling to brake.Traditional braking during standstill mode, operates relatively loaded down with trivial details, and easily forgets pull-up parking brake for some fresh driveies when stopping, and causes safety misadventure.Some chaufeur is even forgotten put down parking brake when being driven a vehicle, and causes the infringement to vehicle.When the gradient starts after stopping when needing vehicle output torque can overcome breakaway force square, can unclamp parking brake, the chaufeur of lacking experience is wayward, easily produces to slip car and cause the accident.In addition, the application of electrical controller on automobile is more and more extensive, and intelligent device can promote the traveling comfort of driving greatly.
Because above-mentioned existing automobile parking device, the present inventor is based on being engaged in the practical experience and expertise that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of novel automobile electric control parking device, general existing automobile parking device can be improved, make it have more practicality.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the present invention had practical value.
Summary of the invention
The present invention proposes a kind of automobile electric control parking device, its technical matters solved to start to walk intelligent parking, the parking of idling intelligence, the intelligent parking of switch-off for the gradient in independently realizing vehicle and travelling, do not interfere service braking system, reduce driver's operation intensity, improve the easy driving of vehicle, traveling comfort and safety.
The present invention solves its technical matters and realizes by the following technical solutions.
A kind of automobile electric control parking device, it comprises: onboard instruments electronic control unit, gathers driving switch signal and vehicle speed signal; Engine electronic control unit, gathers engine ignition switch signal, acceleration pedal position signal and engine rotational speed signal; Brake system control unit, gathers brake pedal signal and brake fluid pressure force signal; Above-mentioned onboard instruments electronic control unit, engine electronic control unit, brake system control unit are connected with automobile CAN-bus respectively; Automobile CAN-bus, CAN transceiver, micro controller system, output interface circuit, it connects in turn; Micro controller system is also connected with Slope Transducer, and output interface circuit is also connected with motor, electromagnetic valve III, electromagnetic valve I, electromagnetic valve II and parking brake indicator lamp respectively; And motor, Hydraulic Pump, brake energy storage device, electromagnetic valve III connect in turn, Hydraulic Pump is connected with liquid storing tank braking.
The present invention is solved its technical matters and can also be realized by following technical measures.
Preferably, above-mentioned a kind of automobile electric control parking device, wherein said electromagnetic valve III is arranged in braking during standstill oil circuit main pipe rail, control braking during standstill oil circuit and service brake oil circuit break-make, and be connected with master brake cylinder, electromagnetic valve I, electromagnetic valve II respectively, this electromagnetic valve III is often in connects master brake cylinder and brake energy storage device state.
Preferably, above-mentioned a kind of automobile electric control parking device, wherein said electromagnetic valve I, electromagnetic valve II are three position four-way electromagnetic valve, and described electromagnetic valve III is two-position four-way solenoid valve.
Preferably, above-mentioned a kind of automobile electric control parking device, wherein said electromagnetic valve I is arranged in braking during standstill oil circuit branch pipeline, controls left front brake wheel cylinder, right back brake wheel cylinder oil circuit break-make, and is connected with master brake cylinder, liquid storing tank braking respectively.
Preferably, above-mentioned a kind of automobile electric control parking device, wherein said electromagnetic valve II is arranged in braking during standstill oil circuit branch pipeline, controls right front brake wheel cylinder, left back brake wheel cylinder oil circuit break-make, and is connected with master brake cylinder, liquid storing tank braking respectively.
Preferably, above-mentioned a kind of automobile electric control parking device, wherein said micro controller system adopts MC9S12G128 micro controller system.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of automobile electric control parking of the present invention device can reach suitable technological advance and practicality, and has the extensive value in industry, and it at least has following advantages:
The signal received by automobile CAN-bus judge vehicle motoring condition and the need of braking during standstill, send instruction by micro controller system and break-make carried out to electromagnetic valve III, electromagnetic valve I, electromagnetic valve II, carry out braking during standstill and brake off.With guarantee vehicle can independently realize the gradient start to walk intelligent parking, start to walk as removing parking prompting, the parking of idling intelligence, the parking of switch-off intelligence, do not interfere service braking system, reduce driver's operation intensity, improve the easy driving of vehicle, traveling comfort and safety.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification sheets, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Accompanying drawing is structure block diagram of the present invention.
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, as follows to a kind of automobile electric control parking device detailed description of the invention proposed according to the present invention, structure, feature description.
As shown in the figure, a kind of automobile electric control parking device, it comprises: onboard instruments electronic control unit ECU, engine electronic control unit ECU, brake system control unit, it is connected with automobile CAN-bus respectively, automobile CAN-bus, CAN transceiver, micro controller system, output interface circuit, it connects in turn, micro controller system is also connected with Slope Transducer, output interface circuit also respectively with motor, electromagnetic valve III, electromagnetic valve I, electromagnetic valve II and parking brake indicator lamp connect, and motor, Hydraulic Pump, brake energy storage device, electromagnetic valve III connects in turn, Hydraulic Pump is connected with liquid storing tank braking.
Described electromagnetic valve III is arranged in braking during standstill oil circuit main pipe rail, control braking during standstill oil circuit and service brake oil circuit break-make, and be connected with master brake cylinder, brake energy storage device, electromagnetic valve I, electromagnetic valve II respectively, this electromagnetic valve III is often in connects master brake cylinder and brake energy storage device state.
Described electromagnetic valve I, electromagnetic valve II are three position four-way electromagnetic valve, and described electromagnetic valve III is two-position four-way solenoid valve.
Described electromagnetic valve I is arranged in braking during standstill oil circuit branch pipeline, controls left front brake wheel cylinder, right back brake wheel cylinder oil circuit break-make, and is connected with master brake cylinder, liquid storing tank braking respectively.
Described electromagnetic valve II is arranged in braking during standstill oil circuit branch pipeline, controls right front brake wheel cylinder, left back brake wheel cylinder oil circuit break-make, and is connected with master brake cylinder, liquid storing tank braking respectively.
Micro controller system adopts MC9S12XS128 micro controller system, and the RAM that the program Flash (P-lash) that MC9S12XS128 is 128KB by 16 central processing unit (CPU12X), memory capacity, memory capacity are 8KB, memory capacity are that the data Flash (D-lash) of 8KB forms on-chip memory.Main functional modules comprises: internal storage, inner PLL phase-locked loop module, 2 asynchronous serial port communication SCI, extensible controller Local Area Network MSCAN module, 18 passage I/O compare timer module TIM, cycle interruption timer module PIT, 18 channel pulse width modulation module PWM, I/O numeral I/O mouth etc.
The TJA1040 chip that CAN transceiver adopts Guangzhou Zhou Ligong micro controller system Development Co., Ltd to produce, TJA1040 chip is the interface between controller area network protocol controller and physical bus, it is mainly used in the high-speed applications of automobile, and speed can reach 1Mbaud.
During the work of this automobile electric control parking device, CAN gathers driving switch signal and vehicle speed signal from onboard instruments electronic control unit ECU, engine ignition switch signal, acceleration pedal position signal and engine rotational speed signal is gathered from engine electronic control unit ECU, gather brake pedal signal, brake fluid pressure force signal from brake system control unit, and be transferred to micro controller system by CAN transceiver.CAN defers to J1939 agreement, and first micro controller system identifies No. ID of CAN, then receives the data of its correspondence, then according to J1939 agreement predetermined processing data, thus calculate the signal of needs.
Grade signal is transferred to micro controller system by Slope Transducer, after micro controller system receives signal, with prestored information contrast, judges vehicle-state.
When microprocessor detect is in vehicle, braking during standstill is opened, gear is D Drive, the speed of a motor vehicle is 0, driving engine is in normal operation, acceleration pedal is operated, then be judged as starting to walk and closing braking during standstill, then micro controller system sends instruction control parking brake indicator lamp fast blink prompting chaufeur by output interface circuit and does not remove braking during standstill.
When microprocessor detect is 0 to the speed of a motor vehicle, gear is D Drive, and braking during standstill is closed, and driving engine is in normal operation, and acceleration pedal is operated, and automobile is on gradient ground, then micro controller system can be judged as that now vehicle will carry out gradient starting.So micro controller system is according to engine rotational speed signal and acceleration pedal position signal and whole-car parameters, gradient angle parameter, judge the relative size of propulsive effort, when propulsive effort can overcome breakaway force, micro controller system sends instruction by output interface circuit switching solenoid valve III to connecting master brake cylinder path, and switching solenoid valve I, electromagnetic valve II are to connecting liquid storing tank braking path.Now electromagnetic valve III opens service brake oil circuit path, brake energy storage device and master brake cylinder conducting, braking liquid force feed is unloaded back liquid storing tank braking through electromagnetic valve I, electromagnetic valve II by the piston in left front brake wheel cylinder, right back brake wheel cylinder, right front brake wheel cylinder, left back brake wheel cylinder under pull back spring effect, removes braking during standstill.Vehicle is gentle start under the effect of propulsive effort, avoids slipping car generation.In driving, if step on brake pedal, micro controller system then receives signal and sends instruction switching solenoid valve I, electromagnetic valve II to connecting master brake cylinder path through output interface circuit, and now service braking system can normally work.This electromagnetic valve III is often in connects master brake cylinder and brake energy storage device state.
When microprocessor detect is 0 to the speed of a motor vehicle, the normal idling of driving engine, acceleration pedal is not operated, brake pedal is not operated, now can be judged as idling, micro controller system sends instruction switching solenoid valve III to being communicated with brake energy storage device and electromagnetic valve I, electromagnetic valve II state by output interface circuit, opens braking during standstill oil circuit main pipe rail, switching solenoid valve I, electromagnetic valve II, to the path of connected electromagnetic valve III, open braking during standstill oil circuit branch pipeline.Braking liquid force feed through brake energy storage device, electromagnetic valve III controls left front brake wheel cylinder through electromagnetic valve I, right back brake wheel cylinder oil circuit break-make is braked, control right front brake wheel cylinder through electromagnetic valve II, left back brake wheel cylinder oil circuit break-make is braked, realize idling braking during standstill, avoid idling slip car phenomenon occur.
After parking, microprocessor detect to the speed of a motor vehicle be 0, brake pedal is not operated, be then judged as parking parking after engine off.Now micro controller system sends instruction switching solenoid valve III to being communicated with brake energy storage device and electromagnetic valve I, electromagnetic valve II state by output interface circuit, open braking during standstill oil circuit main pipe rail, switching solenoid valve I, electromagnetic valve II, to the path of connected electromagnetic valve III, open braking during standstill oil circuit branch pipeline.Braking liquid force feed through brake energy storage device, electromagnetic valve III controls left front brake wheel cylinder through electromagnetic valve I, right back brake wheel cylinder oil circuit break-make is braked, control right front brake wheel cylinder through electromagnetic valve II, left back brake wheel cylinder oil circuit break-make is braked, realize automatic train stop braking during standstill, avoid slipping the generation of car phenomenon.
In automobile electric control parking device working process, if when microprocessor detect is not enough to brake fluid pressure oil pressure, then send the work of instruction unpack motor-driven hydraulic pumps by output interface circuit and supply hydraulic oil to brake energy storage device, when brake fluid pressure oil pressure reaches restriction pressure, then send instruction disable motor, stop hydraulic pump works.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. an automobile electric control parking device, is characterized in that it comprises:
Onboard instruments electronic control unit, gathers driving switch signal and vehicle speed signal;
Engine electronic control unit, gathers engine ignition switch signal, acceleration pedal position signal and engine rotational speed signal;
Brake system control unit, gathers brake pedal signal and brake fluid pressure force signal;
Above-mentioned onboard instruments electronic control unit, engine electronic control unit, brake system control unit are connected with automobile CAN-bus respectively;
Automobile CAN-bus, CAN transceiver, micro controller system, output interface circuit, it connects in turn;
Micro controller system is also connected with Slope Transducer, and output interface circuit is also connected with motor, electromagnetic valve III, electromagnetic valve I, electromagnetic valve II and parking brake indicator lamp respectively;
And motor, Hydraulic Pump, brake energy storage device, electromagnetic valve III connect in turn, Hydraulic Pump is connected with liquid storing tank braking.
2. a kind of automobile electric control parking device according to claim 1, it is characterized in that wherein said electromagnetic valve III is arranged in braking during standstill oil circuit main pipe rail, control braking during standstill oil circuit and service brake oil circuit break-make, and be connected with master brake cylinder, electromagnetic valve I, electromagnetic valve II respectively, this electromagnetic valve III is often in connects master brake cylinder and brake energy storage device state.
3. a kind of automobile electric control parking device according to claim 1, it is characterized in that wherein said electromagnetic valve I, electromagnetic valve II are for three position four-way electromagnetic valve, described electromagnetic valve III is two-position four-way solenoid valve.
4. a kind of automobile electric control parking device according to claim 1, it is characterized in that wherein said electromagnetic valve I is arranged in braking during standstill oil circuit branch pipeline, control left front brake wheel cylinder, right back brake wheel cylinder oil circuit break-make, and be connected with master brake cylinder, liquid storing tank braking respectively.
5. a kind of automobile electric control parking device according to claim 1, it is characterized in that wherein said electromagnetic valve II is arranged in braking during standstill oil circuit branch pipeline, control right front brake wheel cylinder, left back brake wheel cylinder oil circuit break-make, and be connected with master brake cylinder, liquid storing tank braking respectively.
6. a kind of automobile electric control parking device according to claim 1, is characterized in that wherein said micro controller system adopts MC9S12G128 micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510524350.2A CN105109475B (en) | 2015-08-24 | 2015-08-24 | A kind of automobile electric control parking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524350.2A CN105109475B (en) | 2015-08-24 | 2015-08-24 | A kind of automobile electric control parking device |
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| CN105109475B CN105109475B (en) | 2017-12-08 |
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Cited By (4)
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| CN106043109A (en) * | 2016-06-30 | 2016-10-26 | 成都生辉电子科技有限公司 | Braking control method and braking device |
| CN106114351A (en) * | 2016-06-30 | 2016-11-16 | 成都生辉电子科技有限公司 | A kind of brake lamp packet control process and control device |
| CN106828471A (en) * | 2016-12-23 | 2017-06-13 | 广东戈兰玛汽车系统有限公司 | Electronic parking system control method and controller |
| CN115723722A (en) * | 2022-12-01 | 2023-03-03 | 吉林大学 | Parking redundancy braking device for automatic driving vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106043109A (en) * | 2016-06-30 | 2016-10-26 | 成都生辉电子科技有限公司 | Braking control method and braking device |
| CN106114351A (en) * | 2016-06-30 | 2016-11-16 | 成都生辉电子科技有限公司 | A kind of brake lamp packet control process and control device |
| CN106828471A (en) * | 2016-12-23 | 2017-06-13 | 广东戈兰玛汽车系统有限公司 | Electronic parking system control method and controller |
| CN115723722A (en) * | 2022-12-01 | 2023-03-03 | 吉林大学 | Parking redundancy braking device for automatic driving vehicle |
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| CN105109475B (en) | 2017-12-08 |
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Address after: Jianxi District of Henan city of Luoyang Province, nine 471000 West Road No. 71 Applicant after: Luoyang Institute Of Science And Technology Address before: 471000 Henan city of Luoyang province high tech Development Zone, Lu Ze Applicant before: Luoyang Institute Of Science And Technology |
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Effective date of registration: 20210805 Address after: 274000 Guangming Road, economic development zone, yuncheng county, Heze City, Shandong Province Patentee after: SHANDONG YOULUTONG AUTO COMPONENTS Co.,Ltd. Address before: 471000 No.71, Jiudu West Road, Jianxi District, Luoyang City, Henan Province Patentee before: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY |
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