CN109677380A - A kind of automobile lateral stability control system - Google Patents
A kind of automobile lateral stability control system Download PDFInfo
- Publication number
- CN109677380A CN109677380A CN201811508279.9A CN201811508279A CN109677380A CN 109677380 A CN109677380 A CN 109677380A CN 201811508279 A CN201811508279 A CN 201811508279A CN 109677380 A CN109677380 A CN 109677380A
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- Prior art keywords
- high pressure
- accumulator
- pressure accumulator
- valve
- hydraulic
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention provides a kind of automobile lateral stability control systems, control system includes electric control hydraulic braking system, electric control hydraulic braking system includes: electronic control unit, pedal sense simulator and hydraulic control unit, and electric control hydraulic braking system further includes wheel cylinder, oil pipe and steering wheel angle sensor, yaw-rate sensor, longitudinal direction and lateral acceleration sensor and wheel speed sensors.It can be improved automobile horizontal swing stability.
Description
Technical field
The invention belongs to vehicle driving control fields, and in particular to a kind of automobile lateral stability control system.
Background technique
With the development and the improvement of people's living standards of society, people propose the safety of automobile, reliability more next
Higher requirement, safe and environment-friendly, energy saving, lightweight becomes the direction of Hyundai Motor development, wherein " safely " is the most important thing.
Summary of the invention
In view of above-mentioned technical problem, the present invention provides a kind of automobile lateral stability control systems, it is intended to by automatically controlled
Brake fluid system reaches the control swung to lateral direction of car.
In order to solve the above technical problems, technical scheme is as follows:
A kind of automobile lateral stability control system, the control system include electric control hydraulic braking system, the electric-controlled hydraulic
Braking system includes: electronic control unit, pedal sense simulator and hydraulic control unit,
The electronic control unit includes processor, power circuit, A/D switching device, signal processing circuit, driving circuit for electromagnetic valve
And motor-drive circuit, sensor signal is mainly acquired and handled, control command is exported；
The pedal sense simulator includes pedal, pedal travel sensor, lubricating cup, the switching valve in normally off, pressure
Sensor and simulator valve block, for perceiving the braking intention of driver and passing to electronic control unit；
The hydraulic control unit includes high pressure accumulator, inlet valve and delivery valve, balanced valve and switching in the open state
Valve, check valve and safety relief valve, motor, hydraulic pump/motors pump and pressure sensor；
The electric control hydraulic braking system further includes wheel cylinder, oil pipe and steering wheel angle sensor, yaw velocity biography
Sensor, longitudinal direction and lateral acceleration sensor and wheel speed sensors.
Further, in electric control hydraulic braking system work process, system is stored by pressure sensor real-time monitoring high pressure
Pressure in energy device, when pressure value is lower than setting value lower bound, the brake fluid in lubricating cup is pumped by starting hydraulic pump/motors pump
High pressure accumulator rises pressure in accumulator；When pressure value reaches the setting value upper bound, hydraulic pump/motors pump is closed, is stopped
To accumulator fuel feeding, and then remain pressure in accumulator in range of set value, check valve and safety relief valve ensure to store
Energy device pressure is in safe range.
Further, the high pressure accumulator is gasbag-type high pressure accumulator.
Further, the high pressure accumulator is diaphragm type high pressure accumulator.
Further, the high pressure accumulator is piston type high pressure accumulator.
Further, when brake fluid is pumped into high pressure accumulator by hydraulic pump/motors pump, the nitrogen in air bag is pressed
Contracting, gas volume reduce, high pressure accumulator pressure rise, when hypertonia, by safety relief valve by extra brake fluid
It sends lubricating cup back to, guarantees system safety；When electric control hydraulic braking system works, brake fluid is discharged high pressure accumulator, through inlet valve
Wheel cylinder is flowed into, realizes system boost.
Further, when pressure is down to setting value lower limit in high pressure accumulator, hydraulic pump/motors pump is just started to work,
Brake fluid is pumped into accumulator, increase its pressure, stops working when pressure rises to the setting value upper limit.
Specific embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of automobile lateral stability control system, the control system includes electric control hydraulic braking system
System, the electric control hydraulic braking system includes: electronic control unit, pedal sense simulator and hydraulic control unit, the electricity
Controlling unit includes processor, power circuit, A/D switching device, signal processing circuit, driving circuit for electromagnetic valve and motor driven
Circuit mainly acquires and handles sensor signal, exports control command；The pedal sense simulator includes pedal, pedal
Stroke sensor, lubricating cup, the switching valve in normally off, pressure sensor and simulator valve block, for perceiving driver's
Braking intention simultaneously passes to electronic control unit；The hydraulic control unit includes high pressure accumulator, inlet valve and delivery valve, puts down
Weigh valve and switching valve in the open state, check valve and safety relief valve, motor, hydraulic pump/motors pump and pressure sensing
Device；The electric control hydraulic braking system further includes wheel cylinder, oil pipe and steering wheel angle sensor, yaw velocity sensing
Device, longitudinal direction and lateral acceleration sensor and wheel speed sensors.In electric control hydraulic braking system work process, system passes through pressure
Pressure in sensor real-time monitoring high pressure accumulator, when pressure value is lower than setting value lower bound, starting hydraulic pump/motors pump,
Brake fluid in lubricating cup is pumped into high pressure accumulator, increase pressure in accumulator；When pressure value reaches the setting value upper bound, close
Hydraulic pump/motors pump is closed, is stopped to accumulator fuel feeding, and then remain pressure in accumulator in range of set value, unidirectionally
Valve and safety relief valve ensure that energy storage pressure is in safe range.It is stored when brake fluid is pumped into high pressure by hydraulic pump/motors pump
When energy device, the nitrogen in air bag is compressed, and gas volume reduces, and high pressure accumulator pressure rise passes through when hypertonia
Safety relief valve sends extra brake fluid back to lubricating cup, guarantees system safety；When electric control hydraulic braking system works, high-voltage energy-storage
Brake fluid is discharged device, flows into wheel cylinder through inlet valve, realizes system boost.When pressure is down to setting value in high pressure accumulator
When lower limit, hydraulic pump/motors pump is just started to work, and brake fluid is pumped into accumulator, increase its pressure, is set when pressure rises to
It stops working when the definite value upper limit.
The high pressure accumulator is gasbag-type, diaphragm type, piston type high pressure accumulator.
More specifically example: accumulator status monitoring and motor control read what data acquisition and processing (DAP) program obtained
Whether energy storage pressure data, monitoring accumulator work in the pressure range of setting, if energy storage pressure is not in setting work model
It in enclosing, then needs to control motor, energy storage pressure is relatively steady when in order to guarantee the work of electric control hydraulic braking service system
It is fixed, electric motor starting frequency is reduced, setting accumulator operating pressure is maintained at 10MPa, when energy storage pressure is less than 10MPa, opens
Dynamic motor, while energy storage pressure is monitored, motor is out of service when pressure is equal to 10MPa, by simulation test and reality
Border application practice determines that pressure value is set as 10MPa, and the purpose of protection high pressure accumulator can be played by being arranged to 10MPa, can
It improves the service life of high pressure accumulator by about one time, while better control for brake effect can be played, if 1- smaller than 10MPa
Then in control for brake, the effect is relatively poor by 2MPa, cannot not only play good control for brake if 1MPa bigger than 10MPa, and
The damage that can accelerate high pressure accumulator will cause the failure of high pressure accumulator and increase danger during emergency braking.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (7)
1. a kind of automobile lateral stability control system, the control system includes electric control hydraulic braking system, it is characterised in that:
The electric control hydraulic braking system includes: electronic control unit, pedal sense simulator and hydraulic control unit,
The electronic control unit includes processor, power circuit, A/D switching device, signal processing circuit, driving circuit for electromagnetic valve
And motor-drive circuit, sensor signal is mainly acquired and handled, control command is exported；
The pedal sense simulator includes pedal, pedal travel sensor, lubricating cup, the switching valve in normally off, pressure
Sensor and simulator valve block, for perceiving the braking intention of driver and passing to electronic control unit；
The hydraulic control unit includes high pressure accumulator, inlet valve and delivery valve, balanced valve and switching in the open state
Valve, check valve and safety relief valve, motor, hydraulic pump/motors pump and pressure sensor；
The electric control hydraulic braking system further includes wheel cylinder, oil pipe and steering wheel angle sensor, yaw velocity biography
Sensor, longitudinal direction and lateral acceleration sensor and wheel speed sensors,
The electric control hydraulic braking system further includes high pressure accumulator fatigue strength detection unit, the fatigue strength detection unit
The initiation culture for detecting motor, electric-motor pump or hydraulic pump, when frequency is higher than preset value, the high pressure accumulator fatigue is strong
Degree detection unit is in the end of life cycle by display prompts driver high pressure accumulator, and electronic control unit is according to opening
Dynamic frequency prompts driver to make braking additional compensation in braking.
2. a kind of automobile lateral stability control system as described in claim 1, it is characterised in that: electric control hydraulic braking system
In the course of work, system is by the pressure in pressure sensor real-time monitoring high pressure accumulator, when pressure value is lower than under setting value
When boundary, the brake fluid in lubricating cup is pumped into high pressure accumulator, increase pressure in accumulator by starting hydraulic pump/motors pump；Work as pressure
When force value reaches the setting value upper bound, hydraulic pump/motors pump is closed, is stopped to accumulator fuel feeding, and then pressure in accumulator is made to begin
It keeps in range of set value eventually, check valve and safety relief valve ensure that energy storage pressure is in safe range.
3. a kind of automobile lateral stability control system as described in claim 1, it is characterised in that: the high pressure accumulator is
Gasbag-type high pressure accumulator.
4. a kind of automobile lateral stability control system as described in claim 1, it is characterised in that: the high pressure accumulator is
Diaphragm type high pressure accumulator.
5. a kind of automobile lateral stability control system as described in claim 1, it is characterised in that: the high pressure accumulator is
Piston type high pressure accumulator.
6. a kind of automobile lateral stability control system as claimed in claim 3, it is characterised in that: when hydraulic pump/motors pump
When brake fluid is pumped into high pressure accumulator, the nitrogen in air bag is compressed, and gas volume reduces, high pressure accumulator pressure liter
Height sends extra brake fluid back to lubricating cup by safety relief valve, guarantees system safety when hypertonia；Electric-controlled hydraulic system
When dynamic system work, brake fluid is discharged high pressure accumulator, flows into wheel cylinder through inlet valve, realizes system boost.
7. a kind of automobile lateral stability control system as claimed in claim 6, it is characterised in that: when high pressure accumulator internal pressure
When power is down to setting value lower limit, hydraulic pump/motors pump is just started to work, and brake fluid is pumped into accumulator, increase its pressure, when
Pressure stops working when rising to the setting value upper limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508279.9A CN109677380A (en) | 2018-12-11 | 2018-12-11 | A kind of automobile lateral stability control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508279.9A CN109677380A (en) | 2018-12-11 | 2018-12-11 | A kind of automobile lateral stability control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109677380A true CN109677380A (en) | 2019-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811508279.9A Pending CN109677380A (en) | 2018-12-11 | 2018-12-11 | A kind of automobile lateral stability control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109677380A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872730A (en) * | 1987-10-19 | 1989-10-10 | Nippondenso Co., Ltd. | Braking control apparatus for use in motor vehicle |
| US5709439A (en) * | 1995-10-25 | 1998-01-20 | Toyota Jidosha Kabushiki Kaisha | Stability control device of vehicle prepared for manual brake uprise subsequent to end of stability control |
| US6290311B1 (en) * | 1997-08-22 | 2001-09-18 | Toyota Jidosha Kabushiki Kaisha | Brake system of vehicle for simultaneous execution of driver's braking and automatic behavior control |
| CN101193784A (en) * | 2005-06-09 | 2008-06-04 | 卢卡斯汽车股份有限公司 | Compensation of reduced brake effect of a hydraulic brake system for a land craft |
| WO2009063300A1 (en) * | 2007-11-15 | 2009-05-22 | Toyota Jidosha Kabushiki Kaisha | Brake control system |
| CN106740801A (en) * | 2016-12-13 | 2017-05-31 | 中车株洲电力机车有限公司 | A kind of monitoring method of track train braking control system |
| CN107697050A (en) * | 2017-11-13 | 2018-02-16 | 吉林大学 | Line traffic control brake fluid system where a kind of liquid high pressure source generator |
| CN108001436A (en) * | 2016-10-27 | 2018-05-08 | 株式会社万都 | Electronic type braking system and its control method |
-
2018
- 2018-12-11 CN CN201811508279.9A patent/CN109677380A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872730A (en) * | 1987-10-19 | 1989-10-10 | Nippondenso Co., Ltd. | Braking control apparatus for use in motor vehicle |
| US5709439A (en) * | 1995-10-25 | 1998-01-20 | Toyota Jidosha Kabushiki Kaisha | Stability control device of vehicle prepared for manual brake uprise subsequent to end of stability control |
| US6290311B1 (en) * | 1997-08-22 | 2001-09-18 | Toyota Jidosha Kabushiki Kaisha | Brake system of vehicle for simultaneous execution of driver's braking and automatic behavior control |
| CN101193784A (en) * | 2005-06-09 | 2008-06-04 | 卢卡斯汽车股份有限公司 | Compensation of reduced brake effect of a hydraulic brake system for a land craft |
| WO2009063300A1 (en) * | 2007-11-15 | 2009-05-22 | Toyota Jidosha Kabushiki Kaisha | Brake control system |
| CN108001436A (en) * | 2016-10-27 | 2018-05-08 | 株式会社万都 | Electronic type braking system and its control method |
| CN106740801A (en) * | 2016-12-13 | 2017-05-31 | 中车株洲电力机车有限公司 | A kind of monitoring method of track train braking control system |
| CN107697050A (en) * | 2017-11-13 | 2018-02-16 | 吉林大学 | Line traffic control brake fluid system where a kind of liquid high pressure source generator |
Non-Patent Citations (2)
| Title |
|---|
| 于治明，等: "《液压与气压传动》", 31 August 2017 * |
| 樊继东，等: "《汽车电子控制技术》", 28 February 2015, 西安交通大学出版社 * |
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Application publication date: 20190426 |