CN109955721A - A kind of electric vehicle brake control strategy based on ABS - Google Patents
A kind of electric vehicle brake control strategy based on ABS Download PDFInfo
- Publication number
- CN109955721A CN109955721A CN201711418449.XA CN201711418449A CN109955721A CN 109955721 A CN109955721 A CN 109955721A CN 201711418449 A CN201711418449 A CN 201711418449A CN 109955721 A CN109955721 A CN 109955721A
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- China
- Prior art keywords
- abs
- driving wheel
- brake
- braking
- controller
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of type electric car brake controls based on ABS, belong to electric vehicle energy recycling and brake safe technical field.A kind of type electric car brake control based on ABS of the invention, by configuring the servo brake system of ABS, composite system that electric regenerative formula braking system forms realize maximum Brake energy recovery.Electric regenerative formula braking system participates in service brake overall process.When braking, servo brake system provides brake force to non-driving wheel；Electric regenerative formula braking system provides braking torque to driving wheel, and is consistent driving wheel braking deceleration with non-driving wheel；Brake force is supplemented when the braking torque deficiency of electric regenerative formula braking system output, then from servo brake system to driving wheel.
Description
Technical field
The present invention relates to a kind of electric vehicle brake control strategy based on ABS belongs to electric automobile energy recycling and system
Dynamic security technology area.
Background technique
When electric vehicle brake, transmission system drives driving motor rotation to generate electromotive force；Driving motor is connect
When entering circuit loop, circuit generates electric current, and driving motor exports braking torque；When this electric current flows through power battery, that is, realize
Energy feedback.This is also referred to as regenerative braking.When braking torque is small, the braking energy of recycling is just few；When braking torque is big
When, the braking energy of recycling is just more；When braking torque is very big and is not effectively controlled, driving wheel there is the wind of locking
Danger.
Realize the requirement that the continual mileage of electric car is improved while guaranteeing safety, it is necessary in abs controller
Raising braking torque as big as possible under coordination.Due to the regenerative braking system of traditional electric car and watching for configuration ABS
Taking braking system does not have co-ordination, is difficult to realize above-mentioned requirements, therefore the present invention proposes a kind of electric car system based on ABS
Dynamic control strategy.
Summary of the invention
The present invention provides one kind mainly for realizing that braking energy recycles to the greatest extent under the premise of guaranteeing safety
Electric vehicle brake control strategy based on ABS.This control strategy is rigorous, without newly increasing particular component.Based on this strategy, vehicle
Braking energy can effectively be recycled, improve running distance of eletric vehicles, and meet brake safe requirement.
A kind of type electric car brake control based on ABS provided by the invention, by the servo brake system for configuring ABS
System, electric regenerative formula braking system composition composite braking system realize control for brake；Electric regenerative formula braking system includes
Electric machine controller, driving motor, power battery, the hardware that brake control method is related to further include abs controller, ABS solenoid valve,
Entire car controller, servo brake system, abs controller, electric machine controller and entire car controller mutually communicate；This method include with
Lower method and step:
Step 1: entire car controller determines whether electric regenerative formula braking system participates in work according to power battery state,
And will determine that result is sent to abs controller, when abs controller receives brake pedal electric signal and power battery electricity is lower than
When setting threshold values, electric regenerative formula braking system is started to work；
Step 2: the servo brake system of configuration ABS provides brake force, ABS to non-driving wheel according to brake pedal depth
Controller controls driving motor and exports braking torque to driving wheel；
Step 3: abs controller control driving motor increases it when driving wheel deceleration is lower than non-driving wheel deceleration
The braking torque of output；When driving wheel deceleration is higher than non-driving wheel deceleration, abs controller control driving motor reduces it
The braking torque of output；When driving wheel deceleration is equal to non-driving wheel deceleration, abs controller control driving motor maintains it
The braking torque of output.
Further, it is not able to satisfy driving wheel deceleration when the braking torque of driving motor output has reached peak value and wants
When asking, the ABS solenoid valve of driving wheel is started to work, and servo brake system starts to supplement brake force to driving wheel.
Detailed description of the invention
Fig. 1 is brake control method flow chart of the invention.
Fig. 2 is the hardware layout figure that brake control method of the invention is related to.
Specific embodiment
The present invention realizes maximum by the system that the servo brake system of configuration ABS, electric regenerative formula braking system form
The Brake energy recovery of degree.
Such as Fig. 1, electric regenerative formula braking system participates in service brake overall process.When braking, servo brake system is to non-drive
Driving wheel provides brake force；Electric regenerative formula braking system to driving wheel provide braking torque, and make driving wheel braking deceleration with
Non-driving wheel is consistent；When electric regenerative formula braking system output braking torque deficiency when, then from servo brake system to
Driving wheel supplements brake force.
Electric regenerative formula braking system includes electric machine controller, driving motor, power battery, as shown in Fig. 2, control for brake
The hardware that method is related to further includes abs controller, ABS solenoid valve, entire car controller, servo brake system.Abs controller, electricity
Machine controller is mutually communicated with entire car controller.
Entire car controller determines whether electric regenerative formula braking system participates in work according to power battery state, and will determine
As a result it is sent to abs controller, when abs controller receives brake pedal electric signal and power battery electricity lower than setting threshold values
When, electric regenerative formula braking system is started to work, and abs controller controls driving motor and exports initial brake torque to driving wheel；
Servo brake system provides brake force to non-driving wheel according to brake pedal depth simultaneously.When driving wheel deceleration is lower than non-driven
When taking turns deceleration, abs controller control driving motor increases the braking torque of its output；When driving wheel deceleration is higher than non-driven
When taking turns deceleration, abs controller control driving motor reduces the braking torque of its output；When driving wheel deceleration is equal to non-driven
When taking turns deceleration, abs controller control driving motor maintains the braking torque of its output.When the braking torque of driving motor output
Have reached peak value be not able to satisfy still driving wheel deceleration require when, driving wheel ABS solenoid valve start to work, servo brake system to
Driving wheel provides partial brake power.
Compared with the prior art, the present invention has the following advantages:
The present invention does not increase any particular component, it is only necessary to modify the software of abs controller, can recycle system to the greatest extent
Energy, and guarantee brake safe；
Wide adaptability of the present invention, can meet electric car a variety of driving patterns and all kinds of servo brake systems.
It is all according to the present invention to any simple modification and change made by above-described embodiment the above are the embodiment of the present invention
More, in technical solution of the present invention protection scope.
Claims (2)
1. a kind of type electric car brake control based on ABS, which is characterized in that by the servo brake system, the electricity that configure ABS
The composite braking system of power regenerative brake system composition realizes control for brake；Electric regenerative formula braking system includes motor control
Device processed, driving motor, power battery, the hardware that brake control method is related to further includes abs controller, ABS solenoid valve, vehicle control
Device processed, servo brake system, abs controller, electric machine controller and entire car controller mutually communicate；This method includes following methods
Step:
Step 1: entire car controller determines whether electric regenerative formula braking system participates in work according to power battery state, and will
Determine that result is sent to abs controller, when abs controller receives brake pedal electric signal and power battery electricity lower than setting
When threshold values, electric regenerative formula braking system is started to work；
Step 2: the servo brake system of configuration ABS provides brake force, ABS control to non-driving wheel according to brake pedal depth
Device controls driving motor and exports braking torque to driving wheel；
Step 3: abs controller control driving motor increases its output when driving wheel deceleration is lower than non-driving wheel deceleration
Braking torque；When driving wheel deceleration is higher than non-driving wheel deceleration, abs controller control driving motor reduces its output
Braking torque；When driving wheel deceleration is equal to non-driving wheel deceleration, abs controller control driving motor maintains its output
Braking torque.
2. a kind of type electric car brake control based on ABS according to claim 1, which is characterized in that step 3
In, when the braking torque of driving motor output has reached peak value but still is not able to satisfy the requirement of driving wheel deceleration, driving wheel
ABS solenoid valve is started to work, and servo brake system starts to supplement brake force to driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418449.XA CN109955721A (en) | 2017-12-25 | 2017-12-25 | A kind of electric vehicle brake control strategy based on ABS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418449.XA CN109955721A (en) | 2017-12-25 | 2017-12-25 | A kind of electric vehicle brake control strategy based on ABS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109955721A true CN109955721A (en) | 2019-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711418449.XA Pending CN109955721A (en) | 2017-12-25 | 2017-12-25 | A kind of electric vehicle brake control strategy based on ABS |
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| Country | Link |
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| CN (1) | CN109955721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572355A (en) * | 2020-04-29 | 2020-08-25 | 汉腾新能源汽车科技有限公司 | Braking control method for matching ABS system with energy recovery |
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| JP2006025485A (en) * | 2004-07-06 | 2006-01-26 | Nissan Motor Co Ltd | Brake drive force controller for vehicle |
| KR20080037344A (en) * | 2006-10-26 | 2008-04-30 | 현대자동차주식회사 | Method for control regenerative braking of electric vehicle |
| CN101327746A (en) * | 2007-06-19 | 2008-12-24 | 比亚迪股份有限公司 | Electric automobile braking system |
| CN102336142A (en) * | 2011-09-06 | 2012-02-01 | 上海中科深江电动车辆有限公司 | ABS (anti-lock brake system) based regenerative braking control method for electric vehicle |
| US20140074369A1 (en) * | 2012-09-07 | 2014-03-13 | Research Business Foundation Sungkyunkwan University | Method for controlling braking of vehicle |
| CN104512410A (en) * | 2013-09-29 | 2015-04-15 | 北汽福田汽车股份有限公司 | Control method for four-wheel drive hybrid electric vehicle |
| US20160272176A1 (en) * | 2013-11-12 | 2016-09-22 | Hitachi Automotive Systems, Ltd. | Vehicle control apparatus and vehicle control system |
| US20170057361A1 (en) * | 2015-08-26 | 2017-03-02 | Hyundai Motor Company | Apparatus and method for controlling vehicle having motor |
-
2017
- 2017-12-25 CN CN201711418449.XA patent/CN109955721A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378053A (en) * | 1993-12-07 | 1995-01-03 | Alliedsignal Inc. | Maximized regenerative braking vehicle braking controller |
| JP2000344078A (en) * | 1999-06-04 | 2000-12-12 | Toyota Motor Corp | Braking device |
| JP2006025485A (en) * | 2004-07-06 | 2006-01-26 | Nissan Motor Co Ltd | Brake drive force controller for vehicle |
| KR20080037344A (en) * | 2006-10-26 | 2008-04-30 | 현대자동차주식회사 | Method for control regenerative braking of electric vehicle |
| CN101327746A (en) * | 2007-06-19 | 2008-12-24 | 比亚迪股份有限公司 | Electric automobile braking system |
| CN102336142A (en) * | 2011-09-06 | 2012-02-01 | 上海中科深江电动车辆有限公司 | ABS (anti-lock brake system) based regenerative braking control method for electric vehicle |
| US20140074369A1 (en) * | 2012-09-07 | 2014-03-13 | Research Business Foundation Sungkyunkwan University | Method for controlling braking of vehicle |
| CN104512410A (en) * | 2013-09-29 | 2015-04-15 | 北汽福田汽车股份有限公司 | Control method for four-wheel drive hybrid electric vehicle |
| US20160272176A1 (en) * | 2013-11-12 | 2016-09-22 | Hitachi Automotive Systems, Ltd. | Vehicle control apparatus and vehicle control system |
| US20170057361A1 (en) * | 2015-08-26 | 2017-03-02 | Hyundai Motor Company | Apparatus and method for controlling vehicle having motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572355A (en) * | 2020-04-29 | 2020-08-25 | 汉腾新能源汽车科技有限公司 | Braking control method for matching ABS system with energy recovery |
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