CN103786700B - Automobile braking system - Google Patents
Automobile braking system Download PDFInfo
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- CN103786700B CN103786700B CN201410078112.9A CN201410078112A CN103786700B CN 103786700 B CN103786700 B CN 103786700B CN 201410078112 A CN201410078112 A CN 201410078112A CN 103786700 B CN103786700 B CN 103786700B
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- vehicle
- braking
- automobile
- brake
- oil pump
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Abstract
The invention discloses an automobile braking system which comprises a vehicle braking actuator which is communicated with an automobile braking hydraulic system. The automobile braking actuator is connected with an electronic control unit which is connected with an electromagnetic coil of an electromagnetic valve, an oil pump motor, a pressure sensor, an automobile range radar, a sensor for measuring the state of an automobile brake pedal, a sensor for measuring the apeture of a pedal board accelerator and an automobile CAN bus. The output shaft of the oil pump motor is connected with a cam shaft of an oil pump, a suction inlet of the oil pump is communicated with an oil reservoir, an oil injection nozzle of the oil pump is communicated with an energy accumulator through a first one-way valve, a pressure sensor is installed in the energy accumulator which is communicated with an inlet of the electromagnetic valve, and an outlet of the electromagnetic valve is communicated with the oil reservoir. The energy accumulator sequentially passes through a switching valve and a second one-way valve and is communicated with the automobile braking actuator. The automobile braking system is simple in structure and capable of reducing the probability of automobile crash safety accidents and damage of the safety accidents.
Description
Technical field
The present invention relates to automobile brake system and vehicle passive safety technical field, particularly a kind of brake system of car.
Background technology
Existing auto-safety mechanism and security fields design focus on automobile brake system and vehicle passive safety technology.
For existing automobile brake system, the basis of its protection vehicle and personal security is that driver correctly touches on the brake, and cannot keep away
Exempt from the security incident causing due to driver's maloperation；Existing vehicle passive safety device mainly includes bumper, substitute
Capsule, seat belt etc., these devices just can work it is impossible to avoid safe thing completely only after automobile there occurs collision accident
Therefore, the damage of security incident can only be reduced.
Raising with people's living standard and the development of automotive engineering, existing brake system and after crashing
To the protective measure of vehicle and occupant far from meeting the demand to automotive safety for the people, the auxiliary system that automobile active safety controls
Dynamic system has become the urgent needss of Modern Traffic and development of automobile.But also there is no auxiliary braking system both at home and abroad at present.
Content of the invention
The technical problem to be solved is, not enough for prior art, provides a kind of brake system of car, in vapour
Car it may happen that in the case of collision accident, Braking mode, thus reducing automotive crash safety accident occurrence probability, reduce safety
The damage of accident.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of brake system of car, including vehicle
Brake actuator, described vehicle brake actuator and automobile brake hydraulic pressure system connectivity；Described vehicle brake actuator and electronics
Control unit electrically connects, and the solenoid of described electronic control unit and electromagnetic valve, Oil pump electrical machinery, pressure transducer, automobile are surveyed
Away from radar, the sensor of measurement brake-pedal of automobile state, the sensor of measurement pedal accelerator open degree, automobile CAN-bus electricity
Connect, the output shaft of described Oil pump electrical machinery is connected with the camshaft of oil pump, and the suction inlet of described oil pump is connected with oil conservator, described
The atomizer of oil pump is connected with accumulator by the first check valve, and described pressure transducer is arranged in described accumulator, described
Accumulator is connected with the entrance of described electromagnetic valve, and the outlet of described electromagnetic valve is connected with described reservoir, and described accumulator is successively
Connected with described vehicle brake actuator by switch valve, the second check valve.
It is provided with the 3rd check valve between described vehicle brake actuator and automobile brake hydraulic pressure system.3rd check valve is permissible
Prevent the hydraulic oil in automobile brake hydraulic pressure system from flowing in accumulator, improve automobile braking safety further.
Described electronic control unit and the anti-lock braking system of described automobile brake hydraulic pressure system（ABS）Connect, carry further
High running safety.
Operation principle of the present invention is as follows：When vehicle is pressed normal condition and is travelled, auxiliary braking system（Except the original braking of vehicle
Part outside hydraulic system, the 3rd check valve）By the distance of car before and after range radar real-time detection, the hydraulic pressure in accumulator
Oil pressure is constant, oily air pump inoperative；When range radar measure vehicle front or after send out in safe distance and have remaining vehicle, and drive
The person of sailing does not take brake measure or braking error again, when needing vehicle Braking mode, operation of oil pump, and the hydraulic pressure in accumulator
Oil provides enough oil pressure for car load brakes；When artificial braking, auxiliary braking system is not involved in braking, and vehicle is pressed and driven
The intention braking of member.Automobile brake hydraulic pressure system and the hydraulic system of auxiliary braking system（Oil pump, accumulator）Work independently, lead to
Cross each check valve and switch valve ensures whenever vehicle only has a road hydraulic circuit job.
Compared with prior art, the present invention had the advantage that for：Present configuration is simple, in vehicle it may happen that
Collision, and when driver does not take brake measure or braking error, electronic control unit can control brakes
The component workings such as Oil pump electrical machinery, accumulator, electromagnetic valve, thus Braking mode, reduce automotive crash safety accident occurrence probability,
Decrease the damage of security incident.
Brief description
Fig. 1 is one embodiment of the invention theory diagram；
Fig. 2 is one embodiment of the invention hydraulic system structure schematic diagram.
Specific embodiment
As shown in figure 1, one embodiment of the invention includes electronic control unit, Oil pump electrical machinery, electromagnetic valve, hydraulic system, liquid
Pressure system access vehicle brake actuator, electronic control unit and automotive distance-measuring radar, the biography of measurement brake-pedal of automobile state
Sensor, the sensor of measurement pedal accelerator open degree, CAN connect.
As Fig. 2, the hydraulic system of the present invention includes the original hydraulic braking system of vehicle and auxiliary hydraulic system, auxiliary hydraulic pressure
System includes accumulator, hydraulic circuit, check valve etc., vehicle brake actuator and automobile brake hydraulic pressure system connectivity；Described car
Brake actuator is connected with electronic control unit, the solenoid of described electronic control unit and electromagnetic valve, Oil pump electrical machinery, pressure
Force transducer, automotive distance-measuring radar, the sensor of measurement brake-pedal of automobile state, the sensing of measurement pedal accelerator open degree
Device, automobile CAN-bus connect, and the output shaft of described Oil pump electrical machinery is connected with the camshaft of oil pump, the suction inlet of described oil pump and
Oil conservator（Fuel tank）Connection, the atomizer of described oil pump is connected with accumulator by the first check valve, described pressure transducer peace
It is contained in described accumulator, described accumulator is connected with the entrance of described electromagnetic valve, the outlet of described electromagnetic valve and described liquid storage
Device connects, and described accumulator passes sequentially through switch valve, the second check valve is connected with described vehicle brake actuator；Described vehicle system
It is provided with the 3rd check valve between dynamic executor and automobile brake hydraulic pressure system；Described electronic control unit and described motor vehicle brake fluid
The anti-lock braking system of pressure system connects.
In the present invention, electronic control unit（ECU）Microprocessor can be adopted（As single-chip microcomputer etc.）.At electronic control unit
Reason various kinds of sensors is input to the information on the signal and CAN of electronic control unit, controls the Oil pump electrical machinery of hydraulic system
With electromagnetism valve events, when ECU judges to collide, driver does not step on brake pedal again, ECU control oil pump motor and
Electromagnetic valve makes the hydraulic system of auxiliary produce the brake actuator action on enough pressure-driven cars, makes vehicle Braking mode.
On car, the fluid pressure line of original brakes has installed a check valve additional, with the fluid pressure line of auxiliary braking system simultaneously
Connection.When vehicle is pressed normal condition and is travelled, the distance of car before and after auxiliary braking system real-time detection, the hydraulic oil pressure in accumulator
Power is constant, and electric oil pump does not work；When vehicle Braking mode, electric oil pump works, and makes the hydraulic oil in accumulator be car load
Brakes provides enough oil pressure；When artificial braking, auxiliary braking system is not involved in braking, and the intention of driver pressed by vehicle
Braking.On car, the hydraulic system of original arrestment mechanism and the hydraulic system of auxiliary braking system work independently, by check valve
Ensure whenever vehicle only has a road hydraulic working oil with switch valve.
When the parts fault-free relevant with the system, system is pressed normal mode and is run；When relevant with the system zero
When part occurs in that fault, such as pipeline leak, pressure transducer damages, solenoid valve failure etc., and system is pressed fault mode and run.
The system can pass through range radar, and electronic control unit measures the distance of this car and preceding object thing in real time, and
Calculate the relative velocity of vehicle and preceding object thing in real time.By other corresponding sensors and CAN, electronic control unit
The speed of measuring vehicle in real time, engine speed, throttle position, the gear of change speed gear box, state of clutch and brake pedal etc.,
Based on these real time datas, electronic control unit calculates safe space between motorcars and the identification operator brake meaning of vehicle in real time
Figure.If vehicle is more than safe space between motorcars with the distance of preceding object thing, vehicle presses the intention braking of driver, auxiliary braking
System is not involved in braking；If less than safe space between motorcars, and driver does not have braking intention, then vehicle is according to predetermined calculation
Method Braking mode, if driver has braking intention, by the intention braking of driver.
When vehicle operation is in Braking mode mode, the check valve being arranged on hydraulic circuit makes original hydraulic pressure system on car
, not to brake unit fuel feeding, by opening the check valve of auxiliary braking system, the hydraulic oil making auxiliary braking system is on car for system
Original brake unit fuel feeding.In normal driving, electric oil pump does not work, and the hydraulic oil in accumulator maintains enough pressures
Power, when vehicle Braking mode, first to brake unit fuel feeding original on car, then electric oil pump is immediately for the oil in accumulator
Work, provides sufficiently large oil pressure by accumulator to auxiliary braking system, and the related part of hydraulic oil hydraulic driving system moves
Make.When vehicle operation is in artificial mode of braking, vehicle is pressed driver intention and is braked, the oily air pump inoperative of auxiliary braking system,
Switch valve and check valve have isolated the hydraulic oil of auxiliary braking system and the hydraulic oil of original brakes, original brakes
The related component actuation of hydraulic oil hydraulic driving system.
, equipped with check valve, outlet side is on oil pipe equipped with switch valve and check valve for accumulator inlet side.When vehicle is made automatically
When dynamic, oil pump passes through check valve to accumulator fuel feeding, and now the oil pressure of fuel pump outlet is more than the oil pressure in accumulator, in accumulator
Hydraulic oil by the switch valve of accumulator outlet side and check valve to brake unit fuel feeding original on car, electromagnetism valve regulation stores
The pressure of hydraulic oil in energy device, now the oil pressure in accumulator is more than the oil pressure of original brake unit on car；When vehicle is normal
During traveling, when the oil pressure in accumulator reaches certain value, electric oil pump quits work and electromagnetic valve and switch valve are closed, accumulation of energy
Oil pressure in device is more than the pressure of oil pump entrance and the pressure of original brake unit hydraulic oil on car, accumulator inlet side
Check valve prevents the hydraulic oil in accumulator to be back to fuel tank, and switch valve cuts out former on the hydraulic oil entrance car preventing in accumulator
Some brake units；When artificial braking, electric oil pump quits work and closed electromagnetic valve, the oil of original brake unit on car
Pressure is more than the oil pressure in accumulator, and promotes brakes to work, and the check valve of accumulator outlet side prevents original system on car
Dynamic device hydraulic oil enters accumulator.
In Braking mode, if driver has stepped on brake, brakes is immediately switched to artificial mode of braking, vehicle
By driver intention braking；In artificial braking, if driver has unclamped brake, and vehicle is in the danger that may collide
In the case of danger, then system is immediately switched to Braking mode mode.
Claims (3)
1. a kind of brake system of car, including vehicle brake actuator, described vehicle brake actuator and automobile brake hydraulic pressure system
System connection；It is characterized in that, described vehicle brake actuator is electrically connected with electronic control unit, described electronic control unit with electricity
The solenoid of magnet valve, Oil pump electrical machinery, pressure transducer, automotive distance-measuring radar, measurement brake-pedal of automobile state sensor,
The sensor of measurement pedal accelerator open degree, automobile CAN-bus electrical connection, the output shaft of described Oil pump electrical machinery and the cam of oil pump
Axle connects, and the suction inlet of described oil pump is connected with oil conservator, and the atomizer of described oil pump passes through the first check valve with accumulator even
Logical, described pressure transducer is arranged in described accumulator, and described accumulator is connected with the entrance of described electromagnetic valve, described electromagnetism
The outlet of valve is connected with reservoir, and described accumulator passes sequentially through switch valve, the second check valve and described vehicle brake actuator
Connection；By range radar, electronic control unit measures the distance of this car and preceding object thing in real time, and in real time calculate vehicle with
The relative velocity of preceding object thing；By other corresponding sensors and CAN, the real-time measuring vehicle of electronic control unit
Speed, engine speed, throttle position, the gear of change speed gear box, the state of clutch and brake pedal, counted in real time based on these
According to electronic control unit calculates the safe space between motorcars of vehicle in real time and identification operator brake is intended to；If vehicle with front
The distance of square barrier is more than safe space between motorcars, and the intention braking of driver pressed by vehicle, and auxiliary braking system is not involved in braking；
If less than safe space between motorcars, and driver does not have braking intention, then vehicle is according to predetermined algorithm Braking mode, if
Driver has braking intention, then press the intention braking of driver.
2. brake system of car according to claim 1 is it is characterised in that described vehicle brake actuator and automobile brake
It is provided with the 3rd check valve between hydraulic system.
3. brake system of car according to claim 1 and 2 is it is characterised in that described electronic control unit and described vapour
The anti-lock braking system of car hydraulic braking system connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078112.9A CN103786700B (en) | 2014-03-05 | 2014-03-05 | Automobile braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078112.9A CN103786700B (en) | 2014-03-05 | 2014-03-05 | Automobile braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103786700A CN103786700A (en) | 2014-05-14 |
| CN103786700B true CN103786700B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078112.9A Expired - Fee Related CN103786700B (en) | 2014-03-05 | 2014-03-05 | Automobile braking system |
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| CN (1) | CN103786700B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104554213A (en) * | 2015-01-15 | 2015-04-29 | 宁波市巴颜喀拉电子有限公司 | Executing mechanism of automobile intelligent collision avoidance system |
| CN106143459A (en) * | 2016-08-08 | 2016-11-23 | 合肥泰好乐电子科技有限公司 | A kind of electric controlled brake system of autonomous driving vehicle |
| CN106184172A (en) * | 2016-08-08 | 2016-12-07 | 合肥天健汽车科技有限公司 | A kind of electric controlled brake system of autonomous driving vehicle |
| CN106448332A (en) * | 2016-09-12 | 2017-02-22 | 中国石油化工股份有限公司 | Forklift safety protection and intelligent training and examination system |
| CN109305150A (en) * | 2017-07-27 | 2019-02-05 | 天津所托瑞安汽车科技有限公司 | A kind of gas brake auxiliary brake applied to large commercial vehicle |
| CN109318910B (en) * | 2017-12-20 | 2020-05-29 | 中车长春轨道客车股份有限公司 | Train axle speed control equipment and train |
| TWI667161B (en) * | 2018-07-26 | 2019-08-01 | 聯華聚能科技股份有限公司 | Separate electronic brake system |
| TWI692423B (en) * | 2019-03-08 | 2020-05-01 | 慧能車電技術整合有限公司 | Plug-type driver assistance device |
| US11584339B2 (en) | 2019-03-08 | 2023-02-21 | Savvy Energy Vetronics Technology Integration Co. Ltd. | Plug-type driver assistance device |
| CN110529527A (en) * | 2019-09-25 | 2019-12-03 | 洛阳路通重工机械有限公司 | A kind of auxiliary brake system of all-hydraulic single driving single-drum road roller |
| TWI737446B (en) * | 2020-08-13 | 2021-08-21 | 慧能車電技術整合有限公司 | Plug-type driver assistance device |
| CN114604215A (en) * | 2022-02-28 | 2022-06-10 | 浙江吉尚汽车部件有限公司 | Electronic brake system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4211071B2 (en) * | 1997-12-25 | 2009-01-21 | 株式会社アドヴィックス | Brake control device for vehicle |
| KR100721060B1 (en) * | 2005-12-07 | 2007-05-22 | 주식회사 만도 | Brake system of vehicles and its braking method |
| KR100819978B1 (en) * | 2006-08-01 | 2008-04-07 | 현대자동차주식회사 | Brake system for hybrid and electric vehicle and control method thereof |
| CN101537831B (en) * | 2009-04-13 | 2012-10-03 | 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 |
| CN101879892B (en) * | 2009-05-08 | 2013-10-02 | 比亚迪股份有限公司 | Vehicle braking system |
| CN203766737U (en) * | 2014-03-05 | 2014-08-13 | 长沙职业技术学院 | Car braking system |
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2014
- 2014-03-05 CN CN201410078112.9A patent/CN103786700B/en not_active Expired - Fee Related
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| CN103786700A (en) | 2014-05-14 |
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Granted publication date: 20170215 Termination date: 20180305 |