CN109955852A - Stopping brake control method and its system - Google Patents
Stopping brake control method and its system Download PDFInfo
- Publication number
- CN109955852A CN109955852A CN201711422958.XA CN201711422958A CN109955852A CN 109955852 A CN109955852 A CN 109955852A CN 201711422958 A CN201711422958 A CN 201711422958A CN 109955852 A CN109955852 A CN 109955852A
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- CN
- China
- Prior art keywords
- brake
- vehicle
- stopping
- setting
- parking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 210000003205 muscle Anatomy 0.000 claims abstract description 8
- 230000002146 bilateral effect Effects 0.000 claims 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention relates to stopping brake control method and its systems.1) the stopping brake control method is the following steps are included: acquire the speed and brake pedal opening information of vehicle；2) when speed is less than or equal to setting vehicle speed value, and the aperture of brake pedal is less than or equal to setting brake pedal opening value, control vehicle carries out stopping brake；3) when vehicle, which meets, to impose a condition, stopping brake is released；The setting condition includes: by setting time or to detect that gas pedal aperture is greater than zero or parking brake is pulled on or the driving torque of motor is greater than setting driving torque value or double sudden strains of a muscle are opened.Using technical solution of the present invention, determined according to the relevant information of acquisition, if it is determined that when will stop or stop for vehicle, stepping on brake always without driver or pulling the hand brake can be realized stopping brake, on the one hand the manipulation strength of driver is alleviated, vehicle safety performance is on the other hand also improved.
Description
Technical field
The present invention relates to stopping brake control method and its systems, belong to vehicle brake technology field.
Background technique
Driver can frequently encounter provisional parking and this operating condition of stopping for a long time when driving, to guarantee vehicle
Safety, driver can step on always brake or pull on parking brake, will increase the labor intensity of driver in this way, mitigate driver's
Manipulation strength, for the security performance for promoting vehicle, need to develop completely new braking system or using certain control means come
Realize the function of temporary parking braking.
Summary of the invention
The purpose of the present invention is to provide two kinds of stopping brake control methods, for solving existing braking system and braking control
Strategy processed increases the problem of driver's labor intensity.Meanwhile the present invention also provides a kind of parking brake systems.
To achieve the above object, a kind of stopping brake control method of the invention, comprising the following steps: 1) acquire vehicle
Speed and brake pedal opening information；2) when speed be less than or equal to setting vehicle speed value, and the aperture of brake pedal be less than or equal to set
When customizing dynamic pedal opening value, control vehicle carries out stopping brake；3) when vehicle, which meets, to impose a condition, stopping brake is released；
The setting condition includes: by setting time or to detect that gas pedal aperture is greater than zero or parking brake is pulled on or the drive of motor
Dynamic torque is greater than setting driving torque value or double sudden strains of a muscle are opened.
Further, it if vehicle is not carried out the stopping brake or releases the instruction of stopping brake, is sent out to driver
It warns out, while controlling vehicle and entering safe condition.
Another stopping brake control method of the invention, comprising the following steps: 1) acquire the speed and car door shape of vehicle
State information；2) when speed is less than or equal to setting vehicle speed value, and car door is opened, control vehicle carries out stopping brake；3) work as vehicle
Meet impose a condition when, release stopping brake；The setting condition includes: by the first setting time or to detect car door quilt
By the second setting time or detect that gas pedal aperture is greater than zero or parking brake is pulled on or the driving torque of motor after closing
It is opened greater than setting driving torque value or double sudden strains of a muscle.
Further, it if vehicle is not carried out the stopping brake or releases the instruction of stopping brake, is sent out to driver
It warns out, while controlling vehicle and entering safe condition.
A kind of parking brake system of the invention, including the first gas bag, brake pedal, double-way check valve, solenoid valve, second
Gas bag, quick release valve, brake chamber and controller, first gas bag are connected through brake pedal with double-way check valve, and described second
Gas bag is connected through solenoid valve with double-way check valve, and double-way check valve is connected with quick release valve, and quick release valve is connected with brake chamber；It is described
Controller is according to the speed of acquisition, brake pedal aperture, gas pedal aperture, parking brake state, Motor torque, double sudden strains of a muscle and car door shape
State information controls the solenoid valve and carries out stopping brake control.
Further, first gas bag is service brake gas bag, and second gas bag is temporary parking gas bag.
Further, the parking brake system further includes for showing that vehicle is in parking brake condition or stopping brake
The instrument of releasing state, the controller control connect the instrument.
The beneficial effects of the present invention are: determined using technical solution of the present invention according to the relevant information of acquisition, if
When being determined as that vehicle will stop or stop, stepping on brake always without driver or pulling the hand brake can be realized parking system
It is dynamic, the manipulation strength of driver is on the one hand alleviated, vehicle safety performance is on the other hand also improved.
Detailed description of the invention
Fig. 1 is the parking brake system structural schematic diagram in embodiment 1；
Fig. 2 is the logical flow chart of the stopping brake control method in embodiment 1.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The basic conception of stopping brake control method of the invention is: the speed and other relevant informations of vehicle are acquired, when
Speed is less than or equal to setting vehicle speed value, and when other relevant informations also meet related decision condition, controls vehicle and carry out parking system
It is dynamic；Continue to determine after control vehicle progress stopping brake, when a specific condition is satisfied, controls Parking braking release.
Embodiment 1
In order to realize above-mentioned stopping brake control method, parking brake system of the invention is as shown in Figure 1.The stopping brake
System includes: the first gas bag 1, brake pedal 2, double-way check valve 3, solenoid valve 4, the second gas bag 5, the first brake chamber 6, puts fastly
Valve 7, the second brake chamber 8, controller 9 and instrument 10.Wherein controller 9 passes through rigid line or CAN line and solenoid valve 4 and instrument 10
It is connected, brake pedal 2 is connected with double-way check valve 3 respectively with the gas outlet of solenoid valve 4, double-way check valve 3 and 7 phase of quick release valve
Even, quick release valve 7 is connected with the first brake chamber 6 and the second brake chamber 8 respectively.
First gas bag 1 and the second gas bag 5 are independent from each other, wherein the first gas bag 1 is service brake gas bag, principal security
Driver steps on gas source supply when brake pedal；Second gas bag 5 is provisional parking gas bag.
Controller 9 is according to the speed of acquisition, brake pedal aperture, gas pedal aperture, parking brake state, electricity in the present embodiment
Machine torque, double sudden strains of a muscle and vehicle door status information control solenoid valve 4 carry out stopping brake control.Pass through the switch or ratio to solenoid valve 4
The adjusting and control that enter brake chamber pressure size to the second gas bag 5 may be implemented in example control.Solenoid valve 4 also has simultaneously
The function of exhaust, pressure maintaining can make to make on the one hand after the gas of the second gas bag 5 enters brake chamber by controlling solenoid valve 4
The air pressure of room of taking offence maintains；On the other hand by the control to solenoid valve 4, the air pressure of brake chamber can also be released.
Quick release valve 7 can Quick air-discharge.If 7 exhaust sound of quick release valve is larger, can be reduced using certain silencing means
Exhaust sound.
Instrument 10 has display function, and when parking brake function opens or closes, coherent signal is transmitted to instrument by controller
Table 10, instrument 10 can show corresponding symbol, for reminding whether driver's parking brake function opens or closes.
Parking brake system includes instrument in the present embodiment, and as other embodiments, parking brake system can not also
Including instrument, but driver, such as buzzer are reminded using other modes.
It is noted that parking brake system as shown in Figure 1 is only intended to realize stopping brake controlling party of the present invention
The one way in which of method can not be used to limit stopping brake control method of the invention.
As shown in Fig. 2, the basic conception based on stopping brake control method of the present invention, stopping brake control method of the present invention
The following steps are included:
1) controller acquires gas bag gas pressure, air chamber pressure, parking brake signal, motor direction of rotation, Motor torque, motor
Revolving speed, wheel speed, key fire signal, double glitch, accelerator pedal signal, brake pedal signal.
2) when speed is zero, and driver is loosened the brake or loosen the brake to its aperture less than certain value,
Control vehicle enters stopping brake.Correspondingly, controller 9 controls solenoid valve 4 and is in operating mode in above-mentioned parking brake system,
So that the air pressure of the second gas bag 5 enters brake chamber by double-way check valve 3, braking is generated.The adjustable solenoid valve of controller 9
4 opening size, and then adjust the braking pressure value of brake chamber.
3) it after stopping brake is opened, carries out determining whether stopping brake solves further according to the relevant information of controller acquisition
It removes, it is following several to determine that the mode of vehicle parking brake release has: by certain time t1, driver's accelerator pedal, motor
Driving torque value be greater than that certain value, driver pull on parking brake or driver operates certain button (for example opening double dodge).It is real
Any one or more in aforesaid way can be chosen in the application of border as vehicle parking brake release decision condition.
When the unlatching parking brake function of controller 9, or when controller releasing parking brake function, but braked by judgement
The air pressure miss the mark value of gas chamber air pressure or gas circuit, 9 output system error code of controller, and remind drive in some way
Member's maintenance, while controlling vehicle and entering safe condition.
Stopping brake is just carried out when speed is zero in this implementation can also sentence related speed as other embodiments
Disconnected logic setting are as follows: speed it is a certain close to zero value when begin to brake.
Motor speed and wheel speed signal may be used to calculate speed in the present embodiment, and motor speed and wheel speed signal are being counted
It is redundancy effect when calculating speed, speed calculating can be carried out using another when the error occurs with an information wherein.As it
His embodiment, can acquire one of information only to carry out speed calculating, can also obtain vehicle by other means
Fast information.Such as: speed is calculated by range radar.
The information that controller acquires in the present embodiment further includes motor direction of rotation.Due to vehicle reversing when speed often
It is smaller, therefore, in order to avoid the erroneous judgement of stopping brake control method in the present embodiment, only detecting that motor direction of rotation is positive
When just carry out stopping brake.
The key fire signal that controller acquires in the present embodiment is for judging whether automotive power is normal.As other
Embodiment can not also acquire key fire signal.
The information that controller acquires in the present embodiment is more, as other embodiments, can also only acquire above- mentioned information
In part, and the decision logic of adaptive change stopping brake.Such as: controller only acquires motor speed and brake pedal
Signal.
Using the stopping brake control method of the present embodiment, determined according to the relevant information of acquisition, if it is determined that being vehicle
When stopping, stepping on brake always without driver or pull the hand brake stopping brake can be realized, on the one hand alleviate driver's
On the other hand manipulation strength also improves vehicle safety performance.
Embodiment 2
The present embodiment difference from example 1 is that: controller also acquires vehicle door status signal, phase in the present embodiment
Answer ground decision logic are as follows: control vehicle enters stopping brake when speed is zero, and driver opens car door.
When stopping brake open after, correspondingly determine vehicle parking brake release mode include: by certain time t2,
After driver's closed door by certain time t3, detect gas pedal aperture be greater than zero, parking brake pulled on, the driving of motor
Torque is greater than setting driving torque value, driver by operating certain button (for example opening double dodge).It can be selected in practical application
Take any one or more in aforesaid way as vehicle parking brake release decision condition.
Using the stopping brake control method of the present embodiment, determined according to the car door information of acquisition, if it is determined that being vehicle
Stop and car door is when being opened, pulling the hand brake without driver can be realized stopping brake, improve vehicle safety performance.
The above is only presently preferred embodiments of the present invention and oneself, be not intended to limit the present invention in any form, though
Oneself is disclosed above in the preferred embodiment the right present invention, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the method and technique content using the disclosure above make it is a little more
Equivalent embodiment that is dynamic or being modified to equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the present invention
Technical spirit any simple modification, equivalent change and modification made to the above embodiment, still fall within technical solution of the present invention
In range.
Claims (7)
1. a kind of stopping brake control method, which is characterized in that the stopping brake control method the following steps are included:
1) speed and brake pedal opening information of vehicle are acquired；
2) when speed is less than or equal to setting vehicle speed value, and the aperture of brake pedal is less than or equal to setting brake pedal opening value,
It controls vehicle and carries out stopping brake；
3) when vehicle, which meets, to impose a condition, stopping brake is released；The setting condition includes: by setting time or to detect
Gas pedal aperture is greater than zero or parking brake is pulled on or the driving torque of motor is greater than setting driving torque value or double sudden strains of a muscle are opened.
2. stopping brake control method according to claim 1, which is characterized in that if vehicle is not carried out the parking system
Instruction that is dynamic or releasing stopping brake, then issue to driver and warn, while controlling vehicle and entering safe condition.
3. a kind of stopping brake control method, which is characterized in that the stopping brake control method the following steps are included:
1) speed and vehicle door status information of vehicle are acquired；
2) when speed is less than or equal to setting vehicle speed value, and car door is opened, control vehicle carries out stopping brake；
3) when vehicle, which meets, to impose a condition, stopping brake is released；The setting condition includes: by the first setting time or inspection
It measures after car door is closed by the second setting time or detects that gas pedal aperture is greater than zero or parking brake is pulled on or motor
Driving torque be greater than setting driving torque value or it is double sudden strain of a muscle be opened.
4. stopping brake control method according to claim 3, which is characterized in that if vehicle is not carried out the parking system
Instruction that is dynamic or releasing stopping brake, then issue to driver and warn, while controlling vehicle and entering safe condition.
5. a kind of parking brake system, which is characterized in that the parking brake system includes the first gas bag, brake pedal, bilateral
Check valve, solenoid valve, the second gas bag, quick release valve, brake chamber and controller, first gas bag is through brake pedal and bilateral list
To valve be connected, second gas bag is connected through solenoid valve with double-way check valve, and double-way check valve is connected with quick release valve, quick release valve and
Brake chamber is connected；The controller is according to the speed of acquisition, brake pedal aperture, gas pedal aperture, parking brake state, motor
Torque, double sudden strains of a muscle and vehicle door status information control the solenoid valve and carry out stopping brake control.
6. parking brake system according to claim 5, which is characterized in that first gas bag is service brake gas bag,
Second gas bag is temporary parking gas bag.
7. parking brake system according to claim 5, which is characterized in that the parking brake system further includes for showing
Show that vehicle is in the instrument of parking brake condition or Parking braking release state, the controller control connects the instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422958.XA CN109955852A (en) | 2017-12-25 | 2017-12-25 | Stopping brake control method and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422958.XA CN109955852A (en) | 2017-12-25 | 2017-12-25 | Stopping brake control method and its system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109955852A true CN109955852A (en) | 2019-07-02 |
Family
ID=67021171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711422958.XA Pending CN109955852A (en) | 2017-12-25 | 2017-12-25 | Stopping brake control method and its system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109955852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216727A (en) * | 2020-01-16 | 2020-06-02 | 吉利汽车研究院（宁波）有限公司 | Parking control system and control method |
| CN112659916A (en) * | 2020-12-24 | 2021-04-16 | 潍柴动力股份有限公司 | Electric automobile parking method and device |
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| CN103213575A (en) * | 2013-05-15 | 2013-07-24 | 郑州宇通客车股份有限公司 | Relay valve control method and device in hill starting process and air braking system |
| CN203611970U (en) * | 2013-11-08 | 2014-05-28 | 北汽福田汽车股份有限公司 | Automobile parking brake device and automobile |
| JP2014210448A (en) * | 2013-04-17 | 2014-11-13 | 日立オートモティブシステムズ株式会社 | Pneumatic booster |
| CN104608762A (en) * | 2015-01-20 | 2015-05-13 | 郑州宇通客车股份有限公司 | Hill start assisting control method and device |
| CN105313868A (en) * | 2015-11-03 | 2016-02-10 | 南京理工大学 | Service braking system based on intelligent hill-start assist |
| CN107054157A (en) * | 2017-04-21 | 2017-08-18 | 南京金龙客车制造有限公司 | A kind of electric motor coach uphill starting device and its method of work |
| CN206427017U (en) * | 2017-02-08 | 2017-08-22 | 安徽江淮汽车集团股份有限公司 | A kind of automatic parking control system |
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2017
- 2017-12-25 CN CN201711422958.XA patent/CN109955852A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795906A (en) * | 2008-03-18 | 2010-08-04 | 三菱重工业株式会社 | Vehicle controller and vehicle mounted with the same |
| JP2014210448A (en) * | 2013-04-17 | 2014-11-13 | 日立オートモティブシステムズ株式会社 | Pneumatic booster |
| CN103213575A (en) * | 2013-05-15 | 2013-07-24 | 郑州宇通客车股份有限公司 | Relay valve control method and device in hill starting process and air braking system |
| CN203611970U (en) * | 2013-11-08 | 2014-05-28 | 北汽福田汽车股份有限公司 | Automobile parking brake device and automobile |
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| CN105313868A (en) * | 2015-11-03 | 2016-02-10 | 南京理工大学 | Service braking system based on intelligent hill-start assist |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216727A (en) * | 2020-01-16 | 2020-06-02 | 吉利汽车研究院（宁波）有限公司 | Parking control system and control method |
| CN112659916A (en) * | 2020-12-24 | 2021-04-16 | 潍柴动力股份有限公司 | Electric automobile parking method and device |
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Application publication date: 20190702 |