CN105109475B - A kind of automobile electric control parking device - Google Patents
A kind of automobile electric control parking device Download PDFInfo
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- CN105109475B CN105109475B CN201510524350.2A CN201510524350A CN105109475B CN 105109475 B CN105109475 B CN 105109475B CN 201510524350 A CN201510524350 A CN 201510524350A CN 105109475 B CN105109475 B CN 105109475B
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- magnetic valve
- parking
- brake
- control unit
- oil circuit
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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 a kind of automobile electric control parking device, it includes：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, single-chip microcomputer, output interface circuit, it is sequentially connected with；Single-chip microcomputer is also connected with Slope Transducer, and output interface circuit is also connected with motor, magnetic valve III, magnetic valve I, magnetic valve II and parking brake indicator lamp respectively；And motor, hydraulic pump, brake energy storage device, magnetic valve III are sequentially connected with, hydraulic pump is connected with liquid storing tank braking.The intelligent parking of gradient starting, the parking of idling intelligence, switch-off intelligence parking in vehicle traveling are independently realized, does not interfere service braking system, reduces driver's manipulation strength, improve easy driving, comfortableness and the security of vehicle.
Description
Technical field
The present invention relates to automobile automatic control technology field, more particularly to a kind of automobile electric control parking device.
Background technology
At present, most of automobile is braked using hydraulic braking mode, is stepped on by stepping on braking during service brake
Plate, hydraulic oil is provided to be braked to wheel cylinder by master cylinder, parking braking then manually operates parking handle
Mechanical pulling is taken to brake.Traditional parking braking mode, operation is relatively cumbersome, and for some fresh drivers in parking
Easily forget pull-up parking brake, cause security incident.Some drivers even driving when forget to put down parking brake, cause the damage to vehicle
Evil.When vehicle output torque is needed when starting after gradient parking can overcome breakaway force square, parking brake can be unclamped, is lacked experience
Driver be difficult to control, be also easy to produce car slipping and cause the accident.In addition, application of the electric control gear on automobile is more and more wider
General, intelligent device can greatly promote the comfortableness of driving.
In view of above-mentioned existing automobile parking device, the present inventor is based on being engaged in such product design and manufacturing enriching for many years
Practical experience and professional knowledge, and coordinate the utilization of scientific principle, be actively subject to research and innovation, to found a kind of new automobile
Electric control parking device, general existing automobile parking device can be improved, it is had more practicality.By constantly studying,
Design, and after studying sample repeatedly and improving, the present invention having practical value is created finally.
The content of the invention
The present invention proposes a kind of automobile electric control parking device, and its technical problem solved is independently to realize that vehicle travels mesoslope
The intelligent parking of degree starting, the parking of idling intelligence, switch-off intelligence parking, do not interfere service braking system, reduce driver behaviour
Make intensity, improve easy driving, comfortableness and the security of vehicle.
The present invention is solved its technical problem and realized using following technical scheme.
A kind of automobile electric control parking device, it includes：Onboard instruments electronic control unit, gather driving switch signal and car
Fast signal；Engine electronic control unit, collection engine ignition switch signal, acceleration pedal position signal and engine speed
Signal；Brake system control unit, gather brake pedal signal and brake fluid pressure force signal；Above-mentioned onboard instruments Electronic Control list
Member, engine electronic control unit, brake system control unit are connected with automobile CAN-bus respectively；Automobile CAN-bus, CAN are total
Line transceiver, single-chip microcomputer, output interface circuit, it is sequentially connected with；Single-chip microcomputer is also connected with Slope Transducer, output interface circuit
Also it is connected respectively with motor, magnetic valve III, magnetic valve I, magnetic valve II and parking brake indicator lamp；And motor, hydraulic pump, system
Dynamic accumulator, magnetic valve III are sequentially connected with, and hydraulic pump is connected with liquid storing tank braking.
The present invention, which solves its technical problem, to be realized by following technical measures.
Preferably, a kind of above-mentioned automobile electric control parking device, wherein the magnetic valve III is arranged on parking braking oil circuit
In main pipe rail, control parking braking oil circuit and service brake oil circuit break-make, and respectively with master cylinder, magnetic valve I, magnetic valve II
Connection, the magnetic valve III is often in connection master cylinder and brake energy storage device state.
Preferably, a kind of above-mentioned automobile electric control parking device, wherein the magnetic valve I, magnetic valve II are 3-position 4-way
Magnetic valve, the magnetic valve III are two-position four-way solenoid valve.
Preferably, a kind of above-mentioned automobile electric control parking device, wherein the magnetic valve I is arranged on parking braking oil circuit point
In pipeline, wheel cylinder oil circuit break-make behind left front wheel cylinder, the right side is controlled, and be connected respectively with master cylinder, liquid storing tank braking.
Preferably, a kind of above-mentioned automobile electric control parking device, wherein the magnetic valve II is arranged on parking braking oil circuit
In branch pipeline, wheel cylinder, left back wheel cylinder oil circuit break-make before control is right, and connect respectively with master cylinder, liquid storing tank braking
Connect.
Preferably, a kind of above-mentioned automobile electric control parking device, wherein the single-chip microcomputer uses MC9S12G128 single-chip microcomputers.
The present invention has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, the present invention
A kind of automobile electric control parking device can reach suitable technological progress and practicality, and with the extensive exploitation value in industry
Value, it at least has following advantages：
The signal received by automobile CAN-bus judges the transport condition of vehicle and whether needs parking braking, passes through
Single-chip microcomputer sends instruction and carries out break-make to magnetic valve III, magnetic valve I, magnetic valve II, to carry out parking braking and release braking.With
Ensure that vehicle can independently realize that the intelligent parking of gradient starting, starting are releasing parking prompting, the parking of idling intelligence, switch-off
Intelligent parking, do not interfere service braking system, reduce driver's manipulation strength, improve easy driving, comfortableness and the peace of vehicle
Quan Xing.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Accompanying drawing is structure block diagram of the present invention.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined purpose is taken, below in conjunction with attached
Figure and preferred embodiment, to being said according to a kind of automobile electric control parking device embodiment proposed by the present invention, structure, feature
It is bright as follows.
As illustrated, a kind of automobile electric control parking device, it includes：Onboard instruments electronic control unit ECU, start electromechanics
Sub-control unit ECU, brake system control unit, it is connected with automobile CAN-bus respectively, and automobile CAN-bus, CAN are received
Device, single-chip microcomputer, output interface circuit are sent out, it is sequentially connected with, and single-chip microcomputer is also connected with Slope Transducer, and output interface circuit also divides
It is not connected with motor, magnetic valve III, magnetic valve I, magnetic valve II and parking brake indicator lamp, and motor, hydraulic pump, braking storage
Energy device, magnetic valve III are sequentially connected with, and hydraulic pump is connected with liquid storing tank braking.
The magnetic valve III is arranged in parking braking oil circuit main pipe rail, controls parking braking oil circuit and service brake oil circuit
Break-make, and be connected respectively with master cylinder, brake energy storage device, magnetic valve I, magnetic valve II, the magnetic valve III is often in connection system
Dynamic master cylinder and brake energy storage device state.
The magnetic valve I, magnetic valve II are three position four-way electromagnetic valve, and the magnetic valve III is two-position four-way solenoid valve.
The magnetic valve I is arranged in parking braking oil circuit branch pipeline, controls wheel cylinder oil behind left front wheel cylinder, the right side
Road break-make, and be connected respectively with master cylinder, liquid storing tank braking.
The magnetic valve II is arranged in parking braking oil circuit branch pipeline, wheel cylinder, left back wheel cylinder before control is right
Oil circuit break-make, and be connected respectively with master cylinder, liquid storing tank braking.
Single-chip microcomputer uses MC9S12XS128 single-chip microcomputers, MC9S12XS128 by 16 CPU (CPU12X), deposit
Store up capacity be 128KB program Flash (P-lash), memory capacity be 8KB RAM, memory capacity be 8KB data F l
Ash (D-l ash) forms on-chip memory.Main functional modules include：Internal storage, internal PLL phase-locked loop modules, 2
Timer module is compared in asynchronous serial port communication SCI, extensible controller Local Area Network MSCAN modules, 18 passage input/output
TIM, cycle interruption timer module PIT, 18 channel pulse width modulation module PWM, input/output numeral I/O mouths etc..
CAN transceiver uses the TJA1040 chips of Guangzhou Zhou Ligong single-chip microcomputers Development Co., Ltd production,
TJA1040 chips are the interfaces between controller area network protocol controller and physical bus, and it is mainly used in automobile
In high-speed applications, speed is up to 1Mbaud.
When the automobile electric control parking device works, CAN gathers gear from onboard instruments electronic control unit ECU and opened
OFF signal and GES, engine ignition switch signal, accelerator pedal position are gathered from engine electronic control unit ECU
Signal and engine rotational speed signal, from brake system control unit collection brake pedal signal, brake fluid pressure force signal, and pass through
CAN transceiver is transferred to single-chip microcomputer.CAN defers to J1939 agreements, and single-chip microcomputer identifies the ID number of CAN first, so
After receive its corresponding data, further according to J1939 agreement predetermined processing data, so as to which the signal of needs be calculated.
Grade signal is transferred to single-chip microcomputer by Slope Transducer, after single-chip microcomputer receives signal, is contrasted, is sentenced with prestored information
Disconnected vehicle-state.
Be in parking braking opening when single-chip microcomputer detects vehicle, gear is drive shift, speed 0, engine is in just
Normal operating condition, accelerator pedal are operated, then are judged as the parking braking that starts to walk and close, then single-chip microcomputer passes through output interface electricity
Road sends instruction control parking brake indicator lamp fast blink and reminds driver not release parking braking.
When single-chip microcomputer detects that speed is 0, gear is drive shift, and parking braking is closed, and engine is in normal operation shape
State, accelerator pedal are operated, and automobile is on gradient ground, then single-chip microcomputer may determine that to carry out the gradient for now vehicle rises
Step.So single-chip microcomputer is joined according to engine rotational speed signal and acceleration pedal position signal and whole-car parameterses, gradient angle
Number, judges the relative size of driving force, when driving force can overcome breakaway force, single-chip microcomputer sends instruction and passes through output interface
Circuit switching solenoid valve III arrives connection liquid storing tank braking path to connection master cylinder path, switching solenoid valve I, magnetic valve II.
Now magnetic valve III opens service brake oil circuit path, brake energy storage device and master cylinder conducting, is made behind left front wheel cylinder, the right side
Driving wheel cylinder, it is right before wheel cylinder, the piston in left back wheel cylinder brake fluid is pressed oil through magnetic valve under return spring effect
Ith, magnetic valve II unloads back liquid storing tank braking, releases parking braking.Vehicle gentle start in the presence of driving force, avoids car slipping from sending out
It is raw.In driving, if brake pedal, single-chip microcomputer then receive signal through output interface circuit send instruction switching solenoid valve I,
Magnetic valve II is to connection master cylinder path, and now service braking system can normal work.The magnetic valve III is often in connection system
Dynamic master cylinder and brake energy storage device state.
When single-chip microcomputer detects that speed is 0, the normal idling of engine, accelerator pedal is not operated, and brake pedal does not have
It is operated, now can determine whether to send instruction switching solenoid valve III for idling, single-chip microcomputer by output interface circuit and brake to connection
Accumulator and magnetic valve I, the state of magnetic valve II, open parking braking oil circuit main pipe rail, switching solenoid valve I, magnetic valve II to company
The path of magnetic valve III is connect, opens parking braking oil circuit branch pipeline.Brake fluid force feed is through brake energy storage device, magnetic valve III through electromagnetism
Valve I control left front wheel cylinder, it is right after wheel cylinder oil circuit break-make braked, through magnetic valve II control wheel cylinder before the right side,
Left back wheel cylinder oil circuit break-make is braked, and realizes idling parking braking, avoids idling car slipping phenomenon from occurring.
After parking, single-chip microcomputer detects that speed is not operated for 0, brake pedal, is then judged as stopping after engine misses
Parking.Now single-chip microcomputer by output interface circuit send instruction switching solenoid valve III to connection brake energy storage device and magnetic valve I,
The state of magnetic valve II, parking braking oil circuit main pipe rail is opened, switching solenoid valve I, magnetic valve II arrive the path of connection magnetic valve III,
Open parking braking oil circuit branch pipeline.Brake fluid force feed controls left front braked wheel through brake energy storage device, magnetic valve III through magnetic valve I
Cylinder, it is right after wheel cylinder oil circuit break-make braked, control wheel cylinder before the right side, left back wheel cylinder oil circuit to lead to through magnetic valve II
It is disconnected to be braked, automatic stopping parking braking is realized, avoids car slipping phenomenon.
In the automobile electric control parking device course of work, if single-chip microcomputer detects brake fluid pressure oil pressure deficiency,
Instruction unpack motor-driven hydraulic pumps are sent by output interface circuit to work to brake energy storage device supply hydraulic oil, work as brake fluid
When oil pressure reaches restriction pressure, then send instruction and close motor, stop hydraulic pump works.
The above described is only a preferred embodiment of the present invention, any formal limitation not is done to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
To any simple modification, equivalent change and modification made for any of the above embodiments, in the range of still falling within technical solution of the present invention.
Claims (2)
1. a kind of automobile electric control parking device, it is characterised in that it includes：
Onboard instruments electronic control unit, gather driving switch signal and GES；
Engine electronic control unit, collection engine ignition switch signal, acceleration pedal position signal and engine speed letter
Number；
Brake system control unit, gather brake pedal signal and brake fluid pressure force signal；
Above-mentioned onboard instruments electronic control unit, engine electronic control unit, brake system control unit respectively with automobile CAN
Bus connects；
Automobile CAN-bus, CAN transceiver, single-chip microcomputer, output interface circuit, it is sequentially connected with；
Single-chip microcomputer is also connected with Slope Transducer, output interface circuit also respectively with motor, magnetic valve III, electromagnetic valve I, magnetic valve
II and parking brake indicator lamp connection；
And motor, hydraulic pump, brake energy storage device, magnetic valve III are sequentially connected with, hydraulic pump is connected with liquid storing tank braking；
The magnetic valve III is arranged in parking braking oil circuit main pipe rail, controls parking braking oil circuit and service brake oil circuit to lead to
It is disconnected, and be connected respectively with master cylinder, electromagnetic valve I, magnetic valve II, the magnetic valve III often stores up in connection master cylinder and braking
Can device state；The electromagnetic valve I is arranged in parking braking oil circuit branch pipeline, controls wheel cylinder behind left front wheel cylinder, the right side
Oil circuit break-make, and be connected respectively with master cylinder, liquid storing tank braking；The magnetic valve II is arranged on parking braking oil circuit branch pipeline
In, wheel cylinder, left back wheel cylinder oil circuit break-make before control is right, and be connected respectively with master cylinder, liquid storing tank braking；Wherein
The electromagnetic valve I, magnetic valve II are three position four-way electromagnetic valve, and the magnetic valve III is two-position four-way solenoid valve.
2. a kind of automobile electric control parking device according to claim 1, it is characterised in that wherein described single-chip microcomputer uses
MC9S12G128 single-chip microcomputers.
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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| CN105109475A CN105109475A (en) | 2015-12-02 |
| CN105109475B true CN105109475B (en) | 2017-12-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106828471A (en) * | 2016-12-23 | 2017-06-13 | 广东戈兰玛汽车***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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| CN105109475A (en) | 2015-12-02 |
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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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