CN106976451A - Vehicle dynamic stability control system and its control method - Google Patents
Vehicle dynamic stability control system and its control method Download PDFInfo
- Publication number
- CN106976451A CN106976451A CN201610033984.2A CN201610033984A CN106976451A CN 106976451 A CN106976451 A CN 106976451A CN 201610033984 A CN201610033984 A CN 201610033984A CN 106976451 A CN106976451 A CN 106976451A
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- vehicle
- brake
- signal
- driving risk
- control
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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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
A kind of vehicle dynamic stability control system and its control method.Methods described includes：Obtain brake fluid liquid level information；When at minimum level instruction of the brake fluid liquid level less than device for storing liquid, judge vehicle with the presence or absence of driving risk；When judging that the vehicle has driving risk, brake pressure is applied to brakes.The traffic safety of vehicle can be improved using methods described.
Description
Technical field
The present invention relates to field of vehicle control, and in particular to a kind of vehicle dynamic stability control system and its control
Method processed.
Background technology
Dynamic stability control system (DSC, Dynamic Stability Control) is the important composition of vehicle
Part.It can cause the vehicle that vehicle prevents tyre slip from causing under various surface conditions, effectively
The phenomenon such as whipping, sideslip and dynamic property be not good, effectively improves the stability, security and power of vehicle
Property.
Although current DSC can realize that anti-lock, polling power controlling, Dynamic Stability Control, ramp are risen
The functions such as auxiliary, and brake hard auxiliary are walked, but vehicle still suffers from driving risk in some cases.
The content of the invention
The problem of embodiment of the present invention is solved is how to improve traffic safety by DSC.
To solve the above problems, the embodiment of the present invention provides a kind of control of vehicle dynamic stability control system
Method, methods described includes：
Obtain brake fluid liquid level information；
When at minimum level instruction of the brake fluid liquid level less than device for storing liquid, judge whether vehicle is deposited
In driving risk；
When judging that the vehicle has driving risk, brake pressure is applied to brakes.
Alternatively, apply to the brakes after brake pressure, in addition to：Whether judge the vehicle
Driving risk is still suffered from, when still suffering from driving risk, Control for Speed Limitation letter is sent to engine management system
Number with control engine perform speed limit operation.
Alternatively, apply to the brakes after brake pressure, in addition to：Whether judge the vehicle
When still suffering from driving risk, when still suffering from driving risk, control for brake is sent to electronics parking brake controller
Signal with control electronics parking brake perform brake operating.
Alternatively, apply to the brakes after brake pressure, in addition to：Whether judge the vehicle
Driving risk is still suffered from, when still suffering from driving risk, Control for Speed Limitation letter is sent to engine management system
Number with control engine perform speed limit operation, and to electronics parking brake controller send brake control signal with
Electronics parking brake is controlled to perform brake operating.
Alternatively, it is described to judge whether the vehicle still suffers from driving risk, including：
Wheel speed sensors signal is detected, and according to the traveling of the wheel speed sensors signal acquisition vehicle
Speed；
When the travel speed of the vehicle is zero, judge to apply institute after brake pressure to the brakes
State vehicle and still suffer from driving risk, otherwise judge to apply traffic safety after brake pressure to the brakes.
Alternatively, it is described when the brake fluid liquid level is less than at the minimum level instruction of device for storing liquid, sentence
The vehicle break with the presence or absence of driving risk, including：
When at minimum level instruction of the brake fluid liquid level information less than device for storing liquid, detection wheel speed is passed
Sensor signal and brake signal；
The travel speed of the vehicle is obtained according to the wheel speed sensors signal；
In the case that the travel speed for detecting the brake signal and the vehicle is more than or equal to preset value,
Judge that the vehicle has driving risk, otherwise judge the vehicle driving safety.
Alternatively, when the travel speed for detecting the brake signal and vehicle is more than or equal to the feelings of preset value
Under condition, judge that the vehicle has driving risk, otherwise judge the vehicle driving safety.
The embodiment of the present invention additionally provides a kind of vehicle dynamic stability control system, and the system includes：
Acquiring unit, for obtaining brake fluid liquid level information；
First judging unit, at minimum level instruction of the brake fluid liquid level less than device for storing liquid
When, judge vehicle with the presence or absence of driving risk；
First execution unit, for when judging that the vehicle has driving risk, applying to brakes
Brake pressure.
Alternatively, the system also includes：
Second judging unit, for after brake pressure is applied to the brakes, judging the vehicle
Whether driving risk is still suffered from；
Second execution unit, for when the vehicle still suffers from driving risk, to engine management system
Control for Speed Limitation signal is sent to control engine to perform speed limit operation.
Alternatively, the system also includes：
Second judging unit, for after brake pressure is applied to the brakes, judging the vehicle
Whether driving risk is still suffered from；
Second execution unit, when still suffering from driving risk for the vehicle, sends out to electronics parking brake controller
Brake control signal is sent to control electronics parking brake to perform brake operating.
Alternatively, the system also includes：
Second judging unit, for after brake pressure is applied to the brakes, judging the vehicle
Whether driving risk is still suffered from；
Second execution unit, for when the vehicle still suffers from driving risk, to engine management system
Control for Speed Limitation signal is sent to control engine to perform speed limit operation, and send to electronics parking brake controller
Brake control signal with control electronics parking brake perform brake operating.
Alternatively, second judging unit includes：
Detection sub-unit, for detecting wheel speed sensors signal；
Subelement is obtained, the travel speed for obtaining the vehicle according to the wheel speed sensors signal；
When judgment sub-unit for the travel speed in the vehicle is zero, judge to the brakes
Apply the vehicle after brake pressure and still suffer from driving risk, otherwise judge to apply to the brakes and make
Traffic safety after dynamic pressure.
Alternatively, first judging unit includes：
Detection sub-unit, for being indicated in the brake fluid liquid level information less than the minimum level of device for storing liquid
During place, wheel speed sensors signal and brake signal are detected respectively；
Subelement is obtained, the travel speed for obtaining the vehicle according to the wheel speed sensors signal；
Judgment sub-unit, for detect the brake signal and the vehicle travel speed be more than etc.
In the case of preset value, judge that the vehicle has driving risk, otherwise judge the vehicle driving peace
Entirely.
Alternatively, the brake signal includes：Brake pedal displacement transducer signal or brake switch signal.
Compared with prior art, the technical scheme of the embodiment of the present invention has advantages below：
Judge that vehicle whether there is by obtaining brake fluid liquid level information, and according to brake fluid liquid level information
Drive a vehicle risk, and when vehicle has driving risk, brake pressure is applied to brakes, and then can be with
Road speed is controlled, therefore the DSC in the embodiment of the present invention can improve the traffic safety of vehicle.
After brake pressure is applied to brakes, when vehicle still suffers from driving risk, by starting
Machine management system sends Control for Speed Limitation signal to control engine to perform speed limit operation, or to electronics parking brake
Controller sends brake control signal to control electronics parking brake to perform brake operating, can further improve car
Traffic safety.
After brake pressure is applied to brakes, when vehicle still suffers from driving risk, by starting
Machine management system sends Control for Speed Limitation signal to control engine to perform speed limit operation, and to electronics parking brake control
Device processed sends brake control signal to control electronics parking brake to perform brake operating, can further improve car
Traffic safety.
Brief description of the drawings
A kind of flow chart of the control method of vehicle dynamic stability control system in Fig. 1 embodiment of the present invention；
The flow chart of the control method of another vehicle dynamic stability control system in Fig. 2 embodiment of the present invention；
The flow chart of the control method of another vehicle dynamic stability control system in Fig. 3 embodiment of the present invention；
A kind of vehicle dynamic stability control system in Fig. 4 embodiment of the present invention；
Another vehicle dynamic stability control system in Fig. 5 embodiment of the present invention.
Embodiment
Brakes is the important component of vehicle.It can not only make the vehicle in traveling according to driving
The requirement of member carries out forced deceleration and even stopped, and can also make the vehicle of stagnation of movement under the conditions of different kinds of roads
Steadily halt, and the car speed of descent run is kept stable, therefore vehicle traveling can be improved
Stability and security.
Brake fluid is the important component of relation traffic safety in brakes.According to statistics, it is every in China
In the traffic fatalities in year, there is nearly 1/3 to be triggered because of brakes problem, and main braking system
System problem is exactly brake fluid leakage.In daily driving, because brake fluid leakage problem triggers traffic accident,
The situation in turn resulting in thing damage even personal damage is also of common occurrence.And existing vehicle DSC is for because of system
Hydrodynamic reveals triggered Exploration on Train Operation Safety but without any control strategy.
In view of the above-mentioned problems, The embodiment provides a kind of DSC control method, methods described
It whether there is driving wind to vehicle by obtaining brake fluid liquid level information, and according to the liquid level information got
Danger is judged.When judging that vehicle has driving risk, brake pressure is applied to brakes, to control
The travel speed of vehicle processed.Therefore the DSC in the embodiment of the present invention can be with the case where brake fluid is revealed
Improve the traffic safety of vehicle.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is described in detail.
As shown in figure 1, The embodiment provides a kind of vehicle DSC control method, the side
Method may include steps of：
Step 101, brake fluid liquid level information is obtained.
Motor vehicle braking system can generally include：Brake pedal, brake fluid, brake piping and brake.
Brake fluid injects the brake piping by device for storing liquid.Wherein, the device for storing liquid can be liquid storage kettle.
When driving, driver can apply brake pressure by brake pedal, and then by braking
The brake pressure is transferred to brake by the brake fluid in pipeline, by brake is had an effect to cause
State vehicle deceleration.As can be seen here, brake fluid is the liquid of transmission pressure in motor vehicle braking system, is braking
The important component of relation traffic safety in system.
In specific implementation, liquid level sensor can be set in the device for storing liquid, it is described by detection
Liquid level sensor signal, to obtain the liquid level information of the brake fluid.Can also be in the device for storing liquid
Liquid level alarm is set, by setting the alarm door limit value of the liquid level alarm, and the liquid level is detected
The liquid level warning signal that alarm is produced, to obtain the liquid level information of the brake fluid.
When step 102, at minimum level instruction of the brake fluid liquid level less than device for storing liquid, institute is judged
Vehicle is stated with the presence or absence of driving risk.
It is usually provided with specific implementation, on device for storing liquid at minimum level instruction and highest liquid level is indicated
Place.When brake fluid liquid level is higher than at highest liquid level instruction, show that the brake fluid in device for storing liquid is excessive.
When brake fluid liquid level is less than at minimum level instruction, show that brake fluid is leaked.
, both can directly whether minimum less than device for storing liquid to the brake fluid liquid level in specific implementation
Judged at liquid level instruction whether device for storing liquid can also be less than most to the brake fluid liquid level indirectly
Judged at low liquid level instruction.For example, when setting liquid level sensor in the device for storing liquid, can be with
By judging the liquid level sensor signal got, and then to determine the brake fluid liquid level
At whether less than the minimum level instruction of device for storing liquid.When setting liquid level alarm in the device for storing liquid,
It can judge that the brake fluid liquid level is when receiving the alarm signal that the liquid level alarm is produced
At the no minimum level instruction less than device for storing liquid.
In specific implementation, when at minimum level instruction of the brake fluid liquid level less than device for storing liquid, in order to
The vehicle is more accurately judged with the presence or absence of driving risk, can also obtain brake fluid liquid level information
Afterwards, detection wheel speed sensors signal and brake signal, and according to the wheel speed sensors signal acquisition institute
State the travel speed of vehicle.
Wherein, the brake signal can be that the brake pedal displacement that brake pedal displacement transducer is produced is passed
The brake switch signal that sensor signal or brake switch are produced.When brake pedal is subjected to displacement,
The brake pedal displacement transducer signal can be produced, the braking being connected with brake pedal can also be triggered
Switch produces brake switch signal.When detect brake pedal displacement transducer signal or brake switch letter
Number when, driver request braking, otherwise, driver do not ask braking.
In the case that driver asks the travel speed of braking and vehicle to be more than or equal to preset value, that is, drive
Member has carried out brake operating, but the vehicle does not slow down yet, now, judges that the vehicle has driving wind
Danger, otherwise judges the vehicle driving safety.Wherein, the preset value can by those skilled in the art according to
Actual conditions are set, and are not construed as limiting herein.
Step 103, when judging that the vehicle has driving risk, brake pressure is applied to brakes.
In specific implementation, the brake piping connection of DSC and brakes.When the judgement vehicle is present
During risk of driving a vehicle, the brake fluid that DSC can be into brake piping applies brake pressure, will be made by brake fluid
Dynamic pressure is transferred to brake, and vehicle deceleration is controlled with this.
The control method provided in an embodiment of the present invention it can be seen from step 101 to 103, by obtaining
Brake fluid liquid level information, and vehicle is carried out with the presence or absence of driving risk according to the brake fluid liquid level information
Judge, when vehicle produces driving risk because of brake fluid leakage, braked by actively applying to brakes
Pressure controls vehicle deceleration, effectively increases vehicle safety.
In order to preferably avoid vehicle from causing risk of driving a vehicle because of brake fluid leakage, the row of vehicle is further improved
Car safety, embodiments of the invention additionally provide another DSC control method.Below to the control
Method is described in detail：
As shown in Fig. 2 the control method may include steps of：
Step 201, brake fluid liquid level information is obtained.
When step 202, at minimum level instruction of the brake fluid liquid level less than device for storing liquid, institute is judged
Vehicle is stated with the presence or absence of driving risk.
Step 203, when judging that the vehicle has driving risk, brake pressure is applied to brakes.
In specific implementation, those skilled in the art are referred to the above-mentioned description to step 101 to 103
Correspondence implementation steps 201 to 203, here is omitted.Relative to the control method shown in Fig. 1,
Apply to brakes after control pressure, in addition to step 204 and 205, wherein：
Step 204, judge whether the vehicle still suffers from driving risk.
In specific implementation, applied according to step 203 to brakes after brake pressure, the vehicle can
Driving risk can be still suffered from.Therefore, can be to vehicle institute in order to further improve the traffic safety of vehicle
The no driving risk that still suffers from is judged.
In specific implementation, it can judge whether the vehicle still suffers from driving risk using various ways.
It is for instance possible to use the mode of detection wheel speed sensors signal is judged.When detecting wheel speed sensors
During signal, the current travel speed of vehicle is judged according to the wheel speed sensors signal.When the vehicle
When traveling is zero, judge after execution of step 203, the vehicle still suffers from driving risk, otherwise sentences
It is scheduled on traffic safety after execution of step 203.
Step 205, when the vehicle still suffers from driving risk, braking control is sent to electronics parking brake controller
Signal processed with control electronics parking brake (Electrical Park Brake, EPB) perform brake operating.
DSC is connected with EPB controllers.When DSC to brakes active boost rear vehicle still suffers from row
During car risk, brake control signal is sent to EPB controllers, the controller is receiving the control
After signal, brake operating directly can be carried out according to the control signal, with quickly to there is driving risk
Vehicle react, improve traffic safety.
Referring to Fig. 3, the embodiments of the invention provide another DSC control method, methods described can be with
Comprise the following steps：
Step 301, brake fluid liquid level information is obtained.
When step 302, at minimum level instruction of the brake fluid liquid level less than device for storing liquid, institute is judged
Vehicle is stated with the presence or absence of driving risk.
Step 303, when judging that the vehicle has driving risk, brake pressure is applied to brakes.
Step 301~304 may refer to the above-mentioned description to step 201~204, repeat no more here.
After brake pressure is applied to the brakes, methods described can perform step 305, i.e.,：To
Engine management system (Engine Management System, EMS) sends Control for Speed Limitation signal to control
Engine processed performs speed limit operation.
DSC can be connected with EMS.When DSC to brakes active boost rear vehicle still suffers from driving
During risk, to EMS send Control for Speed Limitation signal, EMS after the Control for Speed Limitation signal is received,
Reduction torque output directly can be carried out according to the Control for Speed Limitation signal, and then the vehicle is limited
Speed, quickly to be reacted to the vehicle that there is risk of driving a vehicle, improves traffic safety.
It should be noted that in specific implementation, the control method can only include step 205, also may be used
To only include step 305, step 205 and 305 can also be included simultaneously, i.e.,：When the vehicle is still suffered from
During risk of driving a vehicle, DSC not only sends Control for Speed Limitation signal to control engine to perform speed limit operation to EMS,
Also send brake control signal to control EPB to perform brake operating to EPB controllers so that the vehicle
The driving risk produced by being revealed because of brake fluid can be preferably avoided, the safety of vehicle is improved.
Also, step 205 and 305 be not present execution sequence limitation.Both step 205 can be first carried out,
Step 305 is performed again, step 305 can also be first carried out, then performs step 205, can also be performed simultaneously
Step 205 and 305.It is specific no matter which kind of order to be step 205 and 305 is performed using, do not constitute to this
The limitation of invention.
In order that those skilled in the art more fully understand and realized the present invention, below to above-mentioned control method
Institute's dynamic stabilization system is described in detail.
As shown in figure 4, The embodiment provides a kind of DSC 40, the system 40 can be wrapped
Include：Acquiring unit 41, the first judging unit 42 and the first execution unit 43.
Wherein, the acquiring unit 41 can be used for obtaining brake fluid liquid level information.Described first judges single
When member 42 be can be used at minimum level instruction of the brake fluid liquid level less than device for storing liquid, institute is judged
Vehicle is stated with the presence or absence of driving risk.First execution unit 43 can be used for depositing in the judgement vehicle
When driving a vehicle risk, brake pressure is applied to brakes.
In specific implementation, the vehicle can be judged with the presence or absence of driving risk using various structures.
For example, the first judging unit 42 can include：Detection sub-unit 421, obtain and subelement 422 and sentence
Disconnected subelement 423.Wherein, the detection sub-unit 421 can be used for low in the brake fluid liquid level information
When at the minimum level instruction of device for storing liquid, wheel speed sensors signal and brake signal are detected respectively.Obtain
Subelement 422 is taken to can be used for the travel speed for obtaining vehicle according to the wheel speed sensors signal.It is described
Judgment sub-unit 423, which can be used for being more than or equal in the travel speed for detecting brake signal and vehicle, to be preset
In the case of value, judge that the vehicle has driving risk, otherwise judge the vehicle driving safety.
In specific implementation, the brake pedal that the brake signal can be sent with brake pedal displacement transducer
The brake switch signal that displacement transducer signal or brake switch are sent.It is specific no matter the system
Dynamic request signal is the signal which kind of device is sent, as long as the signal can represent that the braking of driver please
Ask, embodiments of the invention are not restricted.
As shown in figure 5, embodiments of the invention additionally provide another DSC 50.Relative to shown in Fig. 4
DSC 40, DSC40 the first judging unit 52 and first performs list except including acquiring unit 51
Outside member 43, in addition to the second judging unit 54 and the second execution unit 55.Wherein, art technology
Personnel are referred to above-mentioned to acquiring unit in Fig. 4 41, the first judging unit 42 and the first execution unit
43 description, correspondence implements acquiring unit 51, the first judging unit 52 and the first execution unit 53.
The second judging unit 54 and the second execution unit 55 are described in detail below:
In specific implementation, second judging unit 54 can be used for applying system to the brakes
After dynamic pressure, judge whether the vehicle still suffers from driving risk.The vehicle can use various structures
To judge whether the vehicle still suffers from driving risk.For example, second judging unit 54 can include：
Detection sub-unit, acquisition subelement and judgment sub-unit.Wherein, the detection sub-unit can be used for
Detect wheel speed sensors signal.The acquisition subelement can be used for being obtained according to the wheel speed sensors signal
Obtain the travel speed of vehicle.The judgment sub-unit is used for when the travel speed of the vehicle is zero, sentences
Orient the vehicle after the brakes application brake pressure and still suffer from driving risk, otherwise judge to institute
State brakes and apply traffic safety after brake pressure.
In specific implementation, second execution unit 55 can be used for still suffering from driving wind in the vehicle
When dangerous, send Control for Speed Limitation signal to EMS to control engine to perform speed limit operation, or to EPB
Controller sends brake control signal to control EPB to perform brake operating.Second execution unit 55
When can also still suffer from driving risk in the vehicle, both sent Control for Speed Limitation signal to control hair to EMS
Motivation performs speed limit operation, and sends brake control signal to control EPB to perform braking to EPB controllers
Operation.
It can be seen from the DSC shown in Fig. 5 after actively brake pressure is applied to brakes, when
When vehicle still suffers from driving risk, performed by the second execution unit 55 to EMS and send Control for Speed Limitation letter
Number to control engine to perform speed limit operation, and to EPB controllers brake control signal is sent to control
EPB performs at least one operation in brake operating, can preferably avoid vehicle from being led because of brake fluid leakage
Driving risk is caused, the traffic safety of vehicle is further improved.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer can
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (14)
1. a kind of control method of vehicle dynamic stability control system, it is characterised in that including：
Obtain brake fluid liquid level information；
When at minimum level instruction of the brake fluid liquid level less than device for storing liquid, judge whether vehicle is deposited
In driving risk；
When judging that the vehicle has driving risk, brake pressure is applied to brakes.
2. control method as claimed in claim 1, it is characterised in that apply braking pressure to the brakes
After power, in addition to：Judge whether the vehicle still suffers from driving risk, when still suffering from driving risk,
Control for Speed Limitation signal is sent to engine management system to control engine to perform speed limit operation.
3. control method as claimed in claim 1, it is characterised in that apply braking pressure to the brakes
After power, in addition to：When judging whether the vehicle still suffers from driving risk, when still suffering from driving risk,
Send brake control signal to control electronics parking brake to perform brake operating to electronics parking brake controller.
4. control method as claimed in claim 1, it is characterised in that apply braking pressure to the brakes
After power, in addition to：Judge whether the vehicle still suffers from driving risk, when still suffering from driving risk,
Control for Speed Limitation signal is sent to engine management system to control engine to perform speed limit operation, and to electricity
Sub- parking brake controller sends brake control signal to control electronics parking brake to perform brake operating.
5. the control method as described in any one of claim 2 to 4, it is characterised in that the judgement car
Driving risk whether is still suffered from, including：
Wheel speed sensors signal is detected, and the traveling for obtaining the vehicle according to the wheel speed sensors signal is fast
Degree；
When the travel speed of the vehicle is zero, judge to apply described after brake pressure to the brakes
Vehicle still suffers from driving risk, otherwise judges to apply traffic safety after brake pressure to the brakes.
6. control method as claimed in claim 1, it is characterised in that described when the brake fluid liquid level is less than
When at the minimum level instruction of device for storing liquid, the vehicle is judged with the presence or absence of driving risk, including：
When at minimum level instruction of the brake fluid liquid level information less than device for storing liquid, detection wheel speed sensing
Device signal and brake signal；
The travel speed of the vehicle is obtained according to the wheel speed sensors signal；
In the case that the travel speed for detecting the brake signal and the vehicle is more than or equal to preset value,
Judge that the vehicle has driving risk, otherwise judge the vehicle driving safety.
7. control method as claimed in claim 6, it is characterised in that the brake signal includes：Braking is stepped on
Plate displacement transducer signal or brake switch signal.
8. a kind of vehicle dynamic stability control system, it is characterised in that including：
Acquiring unit, for obtaining brake fluid liquid level information；
First judging unit, during at minimum level instruction of the brake fluid liquid level less than device for storing liquid,
Judge vehicle with the presence or absence of driving risk；
First execution unit, for when judging that the vehicle has driving risk, applying to brakes and making
Dynamic pressure.
9. dynamic stability control system as claimed in claim 8, it is characterised in that also include：
Second judging unit, for after brake pressure is applied to the brakes, judging that the vehicle is
It is no to still suffer from driving risk；
Second execution unit, for when the vehicle still suffers from driving risk, being sent out to engine management system
Control for Speed Limitation signal is sent to control engine to perform speed limit operation.
10. dynamic stability control system as claimed in claim 8, it is characterised in that also include：
Second judging unit, for after brake pressure is applied to the brakes, judging that the vehicle is
It is no to still suffer from driving risk；
Second execution unit, when still suffering from driving risk for the vehicle, sends to electronics parking brake controller
Brake control signal with control electronics parking brake perform brake operating.
11. dynamic stability control system as claimed in claim 8, it is characterised in that also include：
Second judging unit, for after brake pressure is applied to the brakes, judging that the vehicle is
It is no to still suffer from driving risk；
Second execution unit, for when the vehicle still suffers from driving risk, being sent out to engine management system
Control for Speed Limitation signal is sent to control engine to perform speed limit operation, and system is sent to electronics parking brake controller
Control signal is moved to control electronics parking brake to perform brake operating.
12. the vehicle dynamic stability control system as described in any one of claim 9 to 11, it is characterised in that
Second judging unit includes：
Detection sub-unit, for detecting wheel speed sensors signal；
Subelement is obtained, the travel speed for obtaining the vehicle according to the wheel speed sensors signal；
When judgment sub-unit for the travel speed in the vehicle is zero, judge to apply to the brakes
Add the vehicle after dynamic pressure and still suffer from driving risk, otherwise judge to apply to the brakes and brake
Traffic safety after pressure.
13. dynamic stability control system as claimed in claim 8, it is characterised in that described first judges single
Member includes：
Detection sub-unit, at minimum level instruction of the brake fluid liquid level information less than device for storing liquid
When, wheel speed sensors signal and brake signal are detected respectively；
Subelement is obtained, the travel speed for obtaining the vehicle according to the wheel speed sensors signal；
Judgment sub-unit, for being more than or equal in the travel speed for detecting the brake signal and the vehicle
In the case of preset value, judge that the vehicle has driving risk, otherwise judge the vehicle driving safety.
14. dynamic stability control system as claimed in claim 13, it is characterised in that the brake signal bag
Include：Brake pedal displacement transducer signal or brake switch signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033984.2A CN106976451B (en) | 2016-01-19 | 2016-01-19 | Vehicle dynamic stability control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033984.2A CN106976451B (en) | 2016-01-19 | 2016-01-19 | Vehicle dynamic stability control system and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109835316A (en) * | 2017-11-27 | 2019-06-04 | 上海汽车集团股份有限公司 | A kind of processing method, device and the entire car controller of automatic parking disabler |
| CN111231926A (en) * | 2020-01-21 | 2020-06-05 | 山东华宇工学院 | Intelligent early warning system for automobile brake fluid |
| CN111703409A (en) * | 2020-06-09 | 2020-09-25 | 长城汽车股份有限公司 | Auxiliary braking method and device for vehicle |
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| CN111231926B (en) * | 2020-01-21 | 2022-01-25 | 山东华宇工学院 | Intelligent early warning system for automobile brake fluid |
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