CN101870288A - Automobile parking auxiliary braking system - Google Patents
Automobile parking auxiliary braking system Download PDFInfo
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- CN101870288A CN101870288A CN 201010207937 CN201010207937A CN101870288A CN 101870288 A CN101870288 A CN 101870288A CN 201010207937 CN201010207937 CN 201010207937 CN 201010207937 A CN201010207937 A CN 201010207937A CN 101870288 A CN101870288 A CN 101870288A
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Abstract
The invention provides an automobile parking auxiliary braking system. Specifically, whether an automobile is stopped is judged by detecting the rotational speed of wheels; if the automobile is stopped and a braking force is applied, the braking force is automatically kept; and when the automobile needs to be started, the braking is automatically released as long as an accelerator pedal is stepped down; therefore, the problem that a manual braking device is forgotten to be tensioned after parking is solved, and the problem of difficult hill start of a manual gear automobile caused by unskilled operation is solved at the same time.
Description
Technical field
The present invention relates to technical field of automotive electronics, relate in particular to a kind of automobile parking auxiliary braking system.
Background technology
Often owing to neglecting or lacking experience, untimely tension hand brake device behind parking of automobile causes automobile to slide to chaufeur, cause danger, caused the loss of property, the present invention is exactly behind parking of automobile, autobrake prevents to slide behind the automobile parking, causes any property loss; Solved manual-gear vehicle simultaneously because of operating the unskilled upward slope starting difficult problem that causes.
Summary of the invention
The invention provides a kind of automobile parking auxiliary braking system, specifically by the detection of vehicle wheel rotational speed being judged whether automobile stops, if automobile stops and having applied braking force, this braking force will be kept automatically, when automobile need be started to walk, can automatically terminate as long as depress the Das Gaspedal braking.Thereby solved the problem of forgetting the tension hand brake device after stopping, solved manual-gear vehicle simultaneously because of operating the unskilled upward slope starting difficult problem that causes.
For achieving the above object, the technical scheme that the present invention takes is: an electromagnetic valve is installed on the brake piping behind the brake system of car master brake cylinder, on the brake piping behind the electromagnetic valve, install an accumulator additional, check valve in parallel on electromagnetic valve, wheel speed sensor is installed on wheel, processing unit comes collecting cart wheel speed sensor signal, speed-slackening signal, throttle position signal, neutral signal, these signals are compared, judge, whether electromagnetic valve of instruction keeps brake-pressure then, reaches the purpose of parking autobrake.
Electromagnetic valve, be used to switch on and off brake piping, electromagnetic valve is connected during energising, electromagnetic valve disconnects during outage, electromagnetic valve is connected the back master brake cylinder and is communicated with by brake piping with brake cylinder, during non-braking mode, brakeless pressure in the brake piping, glancing impact master brake cylinder by this route to brake cylinder brake activation pressure; Brake-pressure will be kept automatically when electromagnetic valve disconnects.
Accumulator is used to store braking energy, and braking energy will be kept by accumulator after electromagnetic valve disconnects.
Check valve, after electromagnetic valve disconnects, master brake cylinder once more when brake cylinder brake activation pressure, one-way valve opens, closed check valve after the end of braking can be kept pressure.
Wheel speed sensor is used for inspection vehicle wheel speed signal, is installed in wheel not with on the parts of tyre rotation or on the main reduction gear, change-speed box, with signal wire (SW) sensor is connected with the processing unit signal input part.
Speed-slackening signal from brake switch signal on the brake pedal, is used to judge whether automobile is in braking mode, when switch closure then automobile be in braking mode, switch opens then automobile is in non-braking mode.
Throttle position signal from the throttle potentiometer signal, is used to judge whether automobile is in idling mode, and when Idle Switch was closed, automobile was in idling mode, and when Idle Switch was opened, automobile was in acceleration mode.
The neutral signal from the signal of change-speed box, is used for judging whether neutral of gear positions.
Processing unit, be used to receive from the throttle potentiometer signal, from brake switch signal on the brake pedal, from the vehicle wheel rotational speed signal and the neutral signal of wheel speed sensor, processing unit compares these signals and analyzes and judgement, send control signal then, the switching on and off of control electromagnetic valve.
Wherein, described processing unit is specially micro controller system.
Wherein, the described wheel speed sensor of car is a kind of of electromagnetic type or Hall-type.
Description of drawings
Fig. 1 is the system architecture scheme drawing of a kind of automobile parking auxiliary braking system of the embodiment of the invention
Among the figure: 1, processing unit 2, accumulator 3, check valve 4, electromagnetic valve 5, brake cylinder 6, wheel speed sensor 7, car side brake 8, brake pedal 9, brake piping 10, auxiliary braking pipeline 11, master brake cylinder 12, throttle position signal 13, neutral signal 14, brake switch signal 15, control signal 16, vehicle wheel rotational speed signal
Fig. 2 is the system flowchart of a kind of automobile parking auxiliary braking system of the embodiment of the invention
The specific embodiment
A kind of automobile parking auxiliary braking system below in conjunction with 1 pair of embodiment of the invention of accompanying drawing is further described:
A kind of automobile parking auxiliary braking system of the embodiment of the invention is by processing unit 1, accumulator 2, check valve 3, electromagnetic valve 4, brake cylinder 5, wheel speed sensor 6, car side brake 7, brake pedal 8, brake piping 9, auxiliary braking pipeline 10, master brake cylinder 11 and from the throttle position signal 12 of throttle potentiometer, from brake switch signal 14 on the brake pedal, form (see figure 1) from the vehicle wheel rotational speed signal 16 of wheel speed sensor and neutral signal 13 and control signal 15.
Above-mentioned automobile parking auxiliary braking system, processing unit 1, be used to receive from throttle potentiometer signal 12, from brake switch signal 14 on the brake pedal, from the vehicle wheel rotational speed signal 16 and the neutral signal 13 of wheel speed sensor, processing unit 1 compares these signals and analyzes and judgement, send control signal 15 then, the switching on and off of control electromagnetic valve.
(1) be in halted state when wheel speed sensor detects wheel, and gear is when neutral, as long as applied braking, processing unit 1 just judges that this car is in braking mode, sends the outage of control signal 15 control electromagnetic valve, and brake system is in the pressure hold mode;
(2) when detecting wheel, wheel speed sensor is in halted state, gear is when non-neutral, and when the throttle gate Idle Switch is closed, as long as applied braking, processing unit 1 just judges that this car is in braking mode, send the outage of control signal 15 control electromagnetic valve, brake system is in the pressure hold mode;
(3) when detecting wheel, wheel speed sensor is in halted state, gear is when non-neutral, and the throttle gate Idle Switch is when opening, and processing unit 1 just judges that this car is in non-braking mode, send the energising of control signal 15 control electromagnetic valve, brake system is in channel status;
(4) be in rotary state when wheel speed sensor detects wheel, processing unit 1 just sends the energising of control signal 15 control electromagnetic valve, and brake system is in channel status.
A kind of automobile parking auxiliary braking system of the present invention, be to from the throttle potentiometer signal, from brake switch signal on the brake pedal, from the vehicle wheel rotational speed signal and the neutral signal of wheel speed sensor by processing unit, compare and analyze and judgement, send control signal then, the switching on and off of control electromagnetic valve.If automobile stops and having applied braking force, this braking force will be kept automatically, when automobile need be started to walk, can automatically terminate as long as depress the Das Gaspedal braking.Thereby solved the problem of forgetting the tension hand brake device after stopping, solved manual-gear vehicle simultaneously because of operating the unskilled upward slope starting difficult problem that causes.This system does not influence the cruising of automobile, need not change normal driving habit.
Flow process below in conjunction with a kind of automobile parking auxiliary braking system of 2 pairs of embodiment of the invention of accompanying drawing is further described:
The flow process of a kind of automobile parking auxiliary braking system of the embodiment of the invention comprises the steps:
Step 201, system initialization, automobile is in braking mode.
Step S202 detects whether neutral of gear on-off, if gear in neutral, then returns S201, if
Gear then carries out S203 in non-neutral.
Step S203 detects throttle position switch, if the throttle gate Idle Switch is closed, then gets back to program S201, if the throttle gate Idle Switch is opened, then carries out S204.
Step S204 sends instruction, the coil electricity of control unit, and automobile brake off state, and keep this state.
Step S205, whether wheel speed sensor detects wheel and rotates, and rotates and then gets back to program S204, does not rotate, and then carries out program S206.
Step S206 detects speed-slackening signal, and the brakeless signal then returns S201, has speed-slackening signal then to carry out S207.
Step S207 sends instruction, the coil blackout of control unit, and automobile is in braking mode, and keeps this state; Carry out simultaneously the detection of S206 again.
Above embodiment only is a kind of description to embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention, to distortion and the improvement that technical scheme of the present invention is carried out, all should be within protection domain of the present invention.
Claims (4)
1. automobile parking auxiliary braking system, it is characterized in that, comprising: processing unit 1, accumulator 2, check valve 3, electromagnetic valve 4, brake cylinder 5, wheel speed sensor 6, car side brake 7, brake pedal 8, brake piping 9, auxiliary braking pipeline 10, master brake cylinder 11 and from the throttle position signal 12 of throttle potentiometer, from brake switch signal 14 on the brake pedal, form from the vehicle wheel rotational speed signal 16 of wheel speed sensor and neutral signal 13 and control signal 15; Processing unit 1 is connected with neutral position switch by brake switch, wheel speed sensor on signal wire (SW) and throttle potentiometer, the brake pedal, received signal, and processing unit 1 switches on and off by signal wire (SW) control electromagnetic valve 4.
2. a kind of automobile parking auxiliary braking system according to claim 1 is characterized in that:
Electromagnetic valve, be used to switch on and off brake piping, electromagnetic valve is connected during energising, electromagnetic valve is connected the back master brake cylinder and is communicated with by brake piping with brake cylinder, electromagnetic valve disconnects during outage, during non-braking mode, brakeless pressure in the brake piping, glancing impact master brake cylinder by this route to brake cylinder brake activation pressure; Brake-pressure will be kept automatically when electromagnetic valve disconnects;
Accumulator is used to store braking energy, and braking energy will be kept by accumulator after electromagnetic valve disconnects;
Check valve, after electromagnetic valve disconnects, master brake cylinder once more when brake cylinder brake activation pressure, one-way valve opens, closed check valve after the end of braking can be kept pressure;
Wheel speed sensor is used for inspection vehicle wheel speed signal, judges whether wheel is in rotary state;
Speed-slackening signal from brake switch signal on the brake pedal, is used to judge whether automobile is in braking mode, when switch closure then automobile be in braking mode, switch opens then automobile is in non-braking mode;
Throttle position signal from the throttle potentiometer signal, is used to judge whether automobile is in idling mode, and when Idle Switch was closed, automobile was in idling mode, and when Idle Switch was opened, automobile was in acceleration mode;
The neutral signal from the signal of change-speed box, is used for judging whether neutral of gear positions;
Processing unit, be used to receive from the throttle potentiometer signal, from brake switch signal on the brake pedal, from the vehicle wheel rotational speed signal and the neutral signal of wheel speed sensor, processing unit compares these signals and analyzes and judgement, send control signal then, the switching on and off of control electromagnetic valve;
3. a kind of automobile parking auxiliary braking system according to claim 1 is characterized in that: described processing unit is specially micro controller system, and described wheel speed sensor is a kind of of electromagnetic type or Hall-type.
4. a kind of automobile parking auxiliary braking system according to claim 1 is characterized in that, comprises the steps:
Step 201, system initialization, automobile is in braking mode.
Step S202 detects whether neutral of gear on-off, if gear in neutral, then returns S201, if gear in non-neutral, then carries out S203.
Step S203 detects throttle position switch, if the throttle gate Idle Switch is closed, then gets back to program S201, if the throttle gate Idle Switch is opened, then carries out S204.
Step S204 sends instruction, the coil electricity of control unit, and automobile brake off state, and keep this state.
Step S205, whether wheel speed sensor detects wheel and rotates, and rotates and then gets back to program S204, does not rotate, and then carries out program S206.
Step S206 detects speed-slackening signal, and the brakeless signal then returns S201, has speed-slackening signal then to carry out S207.
Step S207 sends instruction, the coil blackout of control unit, and automobile is in braking mode, and keeps this state; Carry out simultaneously the detection of S206 again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207937 CN101870288A (en) | 2010-06-11 | 2010-06-11 | Automobile parking auxiliary braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207937 CN101870288A (en) | 2010-06-11 | 2010-06-11 | Automobile parking auxiliary braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101870288A true CN101870288A (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010207937 Pending CN101870288A (en) | 2010-06-11 | 2010-06-11 | Automobile parking auxiliary braking system |
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| CN (1) | CN101870288A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556070A (en) * | 2012-01-16 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Automobile backward slip resistant device |
| CN103171558A (en) * | 2013-03-25 | 2013-06-26 | 中通客车控股股份有限公司 | Hill starting assistant system |
| CN105835863A (en) * | 2016-04-07 | 2016-08-10 | 郭蕾 | Electronic parking system |
| CN106515714A (en) * | 2016-12-08 | 2017-03-22 | 广州汽车集团股份有限公司 | Automatic hydraulic pressure maintenance control method, device and system combined with engine start-stop control system |
| CN114312695A (en) * | 2021-12-30 | 2022-04-12 | 浙江经济职业技术学院 | Parking anti-slide slope device |
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| CN2124838U (en) * | 1992-06-17 | 1992-12-16 | 蒋齐平 | Safety arresting gear for halting vehicle |
| DE4332459A1 (en) * | 1993-09-23 | 1995-03-30 | Bayerische Motoren Werke Ag | Control device for a hydraulic brake system for a motor vehicle with internal combustion engine and automatic transmission |
| JPH11321596A (en) * | 1998-05-13 | 1999-11-24 | Mitsubishi Electric Corp | Parking brake device |
| DE19825642A1 (en) * | 1998-06-09 | 1999-12-16 | Opel Adam Ag | Starting aid for motor vehicle with manual gearbox overcoming hydraulic leaks and aiding long-term parking on an incline |
| EP1327553A2 (en) * | 2002-01-11 | 2003-07-16 | Toyota Jidosha Kabushiki Kaisha | Running control system, parking assist system, and method for running control |
| US20040070271A1 (en) * | 2001-02-23 | 2004-04-15 | Won-Bum Lee | Apparatus and method of automatically braking in a stop state of a vehicle |
| CN2714393Y (en) * | 2004-05-24 | 2005-08-03 | 王志严 | Automobile automatic parking device |
| CN101537831A (en) * | 2009-04-13 | 2009-09-23 | 浙江亚太机电股份有限公司 | Control method of automobile electric control parking and start assisting by manual transmission and system thereof |
| CN100564117C (en) * | 2004-11-18 | 2009-12-02 | 西门子公司 | Be used to operate brake system, the particularly method and apparatus of parking of automobile drg |
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2010
- 2010-06-11 CN CN 201010207937 patent/CN101870288A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2124838U (en) * | 1992-06-17 | 1992-12-16 | 蒋齐平 | Safety arresting gear for halting vehicle |
| DE4332459A1 (en) * | 1993-09-23 | 1995-03-30 | Bayerische Motoren Werke Ag | Control device for a hydraulic brake system for a motor vehicle with internal combustion engine and automatic transmission |
| JPH11321596A (en) * | 1998-05-13 | 1999-11-24 | Mitsubishi Electric Corp | Parking brake device |
| DE19825642A1 (en) * | 1998-06-09 | 1999-12-16 | Opel Adam Ag | Starting aid for motor vehicle with manual gearbox overcoming hydraulic leaks and aiding long-term parking on an incline |
| US20040070271A1 (en) * | 2001-02-23 | 2004-04-15 | Won-Bum Lee | Apparatus and method of automatically braking in a stop state of a vehicle |
| EP1327553A2 (en) * | 2002-01-11 | 2003-07-16 | Toyota Jidosha Kabushiki Kaisha | Running control system, parking assist system, and method for running control |
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| CN100564117C (en) * | 2004-11-18 | 2009-12-02 | 西门子公司 | Be used to operate brake system, the particularly method and apparatus of parking of automobile drg |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556070A (en) * | 2012-01-16 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Automobile backward slip resistant device |
| CN103171558A (en) * | 2013-03-25 | 2013-06-26 | 中通客车控股股份有限公司 | Hill starting assistant system |
| CN103171558B (en) * | 2013-03-25 | 2016-03-02 | 中通客车控股股份有限公司 | A kind of uphill starting ancillary system |
| CN105835863A (en) * | 2016-04-07 | 2016-08-10 | 郭蕾 | Electronic parking system |
| CN106515714A (en) * | 2016-12-08 | 2017-03-22 | 广州汽车集团股份有限公司 | Automatic hydraulic pressure maintenance control method, device and system combined with engine start-stop control system |
| CN114312695A (en) * | 2021-12-30 | 2022-04-12 | 浙江经济职业技术学院 | Parking anti-slide slope device |
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Application publication date: 20101027 |