CN104442414B - Brake energy recycling control method - Google Patents
Brake energy recycling control method Download PDFInfo
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- CN104442414B CN104442414B CN201410634945.9A CN201410634945A CN104442414B CN 104442414 B CN104442414 B CN 104442414B CN 201410634945 A CN201410634945 A CN 201410634945A CN 104442414 B CN104442414 B CN 104442414B
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- brake
- braking
- control device
- force
- electric
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004064 recycling Methods 0.000 title abstract 6
- 239000012530 fluid Substances 0.000 claims abstract description 39
- 238000011084 recovery Methods 0.000 claims description 16
- 230000001172 regenerating effect Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Abstract
The invention provides a brake energy recycling control method which can increase the brake energy recycling ratio of an electric vehicle, effectively increase the runtime mileage of the whole vehicle or reduce the capacity of a battery, and reduce the cost and weight of the whole vehicle. According to the brake energy recycling control method, a brake fluid control device capable of providing the non-cutting stroke of a brake fluid inflow proportional valve of a brake main cylinder is arranged between a main oil pipe and an auxiliary oil pipe between the brake main cylinder and the proportional valve, the brake fluid control device is controlled by a brake force distribution controller, the brake force distribution controller controls the brake main cylinder and an electric brake with an energy recycling function, then the brake intention of a driver is intelligently judged, the proportional relation between hydraulic braking and electric braking is intelligently adjusted, the electric brake capacity is used in priority, the energy recycling proportion is increased, and the aims of effectively increasing the runtime mileage of the whole vehicle or reducing the capacity of the battery, and reducing the cost and weight of the whole vehicle are achieved.
Description
Technical field
The present invention relates to electric vehicle brake power recovery technology field, and in particular to a kind of Brake energy recovery controlling party
Method.
Background technology
Becoming increasingly popular and widely using with automobile, pollution that ordinary internal combustion engine automobile brings and resource consumption are increasingly
It is more of interest by people, electric automobile with its energy-conserving and environment-protective and zero-emission it is of increased attention.But battery technology
The bottleneck of development, constrains the development of electric automobile significantly.How the course continuation mileage of electric automobile is improved, into one urgently
The problem of solution.
At present, on most electric automobiles, brakes still using the design as regular gasoline car, is adopted
Vacuum hydraulic brakes is used, when user brakes, the kinetic energy of vehicle is converted into thermal energy consumption.How during by braking vehicle it is dynamic
Storage can be collected and recycled, become solution battery bottleneck at this stage, the solution of lifting electric motor car course continuation mileage it
One.
On simple Brake Energy retracting device, on the basis of the original brake fluid system of reservation does not make any changes,
Using the action simultaneously of recoverable electric braking and traditional vacuum hydraulic brakes is braked, cause the energy that electric braking is reclaimed compared with
It is few, act on unobvious.
The content of the invention
The purpose of the present invention is to propose to a kind of Brake energy recovery control method, can increase electric vehicle brake power recovery
Ratio, the course continuation mileage for effectively lifting car load or the capacity for reducing battery, reduce integral vehicle cost and weight.
According to the Brake energy recovery control method that the present invention is provided, comprise the following steps：
A：One is arranged between main oil pipe and auxiliary oil pipe between master cylinder and proportioning valve master cylinder can be provided
Brake fluid flows into the brake fluid control device of the idle stroke of proportioning valve, and the brake fluid control device is by braking force distribution controller
Control, the braking force distribution controller control master cylinder and the electric brake with energy regenerating respectively；
B, braking initial stage：Braking force distribution controller detection braking pedal signal, braking start, now brake fluid control dress
The idle stroke put is zero, and brake force is provided by master cylinder；
C, braking mid-term：Braking force distribution controller control electric brake participates in braking, and now brake fluid control device increases
Plus idle stroke, brake force provided jointly by master cylinder and electric brake；When the maximum braking force that electric brake can be provided is more than
During current desired brake force, brake fluid control device controls idle stroke to maximum, and brake force is provided by electric brake；
D, braking latter stage：The idle stroke of brake fluid control device is gradually kept to zero, and brake force is gradually transformed into by braking master
Cylinder is provided.
The present invention Brake energy recovery control method, can intelligent decision driver braking intention, adjustment hydraulic pressure
Braking and the proportionate relationship of electric braking, preferentially use electric braking ability, the ratio that increase energy is reclaimed effectively to lift the continuous of car load
The capacity of boat mileage or reduction battery, reduces integral vehicle cost and weight.
Further, braking force distribution controller described in step C controls master cylinder respectively according to ratio stepping position
The brake force size of brake force and electric brake.By multiple-rank control, be conducive to saving control cost, improve safety.
Specifically, as preferred embodiment, the brake fluid control device for be respectively communicated with for a pair main oil pipe and
The piston cylinder of secondary oil pipe, the piston cylinder are arranged in parallel, and the push rod of the piston cylinder is synchronously driven by a controlled motor.
Specifically, there are the controlled motor multiple gears to correspond to the control shelves of the braking force distribution controller respectively
Position.
Further, Brake energy recovery control method of the invention also includes E steps：If braking force distribution controller connects
The energy regenerating energy storage full signal of electric brake controller is received, then the idle stroke of brake fluid control device is kept to into zero, braking
Power is provided by master cylinder.So electric brake controller can be disconnected after recuperator is fully loaded, prevent from transshipping equivalent risk.
Specifically, the braking force distribution controller adopts DSP control technologies.
Specifically, stroke of the control input of the braking force distribution controller for brake pedal, can be by braking
Pedal set location sensor is obtaining the stroke of brake pedal, the demand braking force of real-time judge car load.
Description of the drawings
Fig. 1 is conventional hydraulic brakes block diagram.
Fig. 2 is the system block diagram that band brake power of the present invention reclaims distribution control.
The operating diagram of present invention when Fig. 3 is high demand braking force.
The operating diagram of present invention when Fig. 4 is middle demand braking force.
Fig. 5 is that the work of the present invention when maximum braking force that electric brake can be provided is more than current desired brake force is illustrated
Figure.
Fig. 6 is the operating diagram for braking the latter stage present invention.
Specific embodiment
It is below against accompanying drawing, by the description to embodiment, each as involved by the specific embodiment of the present invention
The shape of component, the mutual alignment between construction, each several part and annexation, the effect of each several part and operation principle etc. are made into one
The detailed description of step.
Embodiment 1：
The Brake energy recovery control method of the present invention, comprises the following steps：
A：One is arranged between main oil pipe and auxiliary oil pipe between master cylinder and proportioning valve master cylinder can be provided
Brake fluid flows into the brake fluid control device of the idle stroke of proportioning valve, and the brake fluid control device is by braking force distribution controller
Control, the braking force distribution controller control master cylinder and the electric brake with energy regenerating respectively；
B, braking initial stage：Braking force distribution controller detection braking pedal signal, braking start, now brake fluid control dress
The idle stroke put is zero, and brake force is provided by master cylinder；
C, braking mid-term：Braking force distribution controller control electric brake participates in braking, and now brake fluid control device increases
Plus idle stroke, brake force provided jointly by master cylinder and electric brake；When the maximum braking force that electric brake can be provided is more than
During current desired brake force, brake fluid control device controls idle stroke to maximum, and brake force is provided by electric brake；
D, braking latter stage：The idle stroke of brake fluid control device is gradually kept to zero, and brake force is gradually transformed into by braking master
Cylinder is provided.
In practical application, as the factors such as frictional force are present, brake force can not possibly completely by master cylinder or completely by point
Brake is provided.
For step A, such as Fig. 1, the present invention is arranged between main oil pipe and auxiliary oil pipe between master cylinder and proportioning valve
The brake fluid control device of the idle stroke of one brake fluid inflow proportioning valve that master cylinder can be provided.As preferred embodiment party
Formula, brake fluid control device are the piston cylinder for being respectively communicated with main oil pipe and secondary oil pipe for a pair, and the piston cylinder is arranged in parallel, described
The push rod of piston cylinder is synchronously driven by a controlled motor.Brake fluid control device controls push rod by piston cylinder and makees hydraulic braking sky
Stroke Control.
For step B, such as Fig. 2, the hydraulic braking idle stroke of brake fluid control device is zero, and now, brake force is by braking
Master cylinder is provided.
For step C, braking force distribution controller control electric brake participate in braking, now brake fluid control device increases
Idle stroke, brake force are provided jointly by master cylinder and electric brake, and now brake fluid control device as shown in Figure 3 and Figure 4, is schemed
The black portions of middle master cylinder and brake fluid control device are braking liquid proportional；Wherein, when Fig. 3 is high braking requirement, braking
Master cylinder provides the situation of most of brake force, and when Fig. 4 is middle demand braking force, electric brake provides the feelings of most of brake force
Condition.When the maximum braking force that electric brake can be provided is more than current desired brake force, brake fluid control device control idle stroke
To maximum, brake force is provided by electric brake, as shown in Figure 5.
For step D, such as Fig. 6, the idle stroke of brake fluid control device is gradually kept to zero, and brake force is gradually transformed into by making
Dynamic master cylinder is provided.
In practical application, during step C, braking force distribution controller can control master cylinder respectively according to ratio stepping position
The brake force size of brake force and electric brake.Multiple gears can be provided with by corresponding controlled motor and correspond to brake force respectively
The control gear of dispensing controller.
In order to increase safety, if the energy regenerating energy storage that braking force distribution controller receives electric brake controller is fully loaded with
Signal, then be kept to zero by the idle stroke of brake fluid control device, and brake force is provided by master cylinder.
Claims (7)
1. a kind of Brake energy recovery control method, it is characterised in that comprise the following steps：
A：One braking that can provide master cylinder is set between the main oil pipe and auxiliary oil pipe between master cylinder and proportioning valve
Liquid flows into the brake fluid control device of the idle stroke of proportioning valve, and the brake fluid control device is by braking force distribution controller control
System, the braking force distribution controller control master cylinder and the electric brake with energy regenerating respectively；
B, braking initial stage：Braking force distribution controller detection braking pedal signal, braking start, now brake fluid control device
Idle stroke is zero, and brake force is provided by master cylinder；
C, braking mid-term：Braking force distribution controller control electric brake participates in braking, and now brake fluid control device increases empty
Stroke, brake force are provided jointly by master cylinder and electric brake；When the maximum braking force that electric brake can be provided is more than currently
During required brake force, brake fluid control device controls idle stroke to maximum, and brake force is provided by electric brake；
D, braking latter stage：The idle stroke of brake fluid control device is gradually kept to zero, and brake force is gradually transformed into and is carried by master cylinder
For.
2. Brake energy recovery control method according to claim 1, it is characterised in that brake force described in the step C
Dispensing controller controls the brake force of master cylinder and the brake force size of electric brake respectively according to ratio stepping position.
3. Brake energy recovery control method according to claim 2, it is characterised in that the brake fluid control device is
It is respectively communicated with the piston cylinder of main oil pipe and secondary oil pipe for a pair, the piston cylinder is arranged in parallel, the push rod of the piston cylinder is by a control
Motor in synchrony processed drives.
4. Brake energy recovery control method according to claim 3, it is characterised in that the controlled motor has multiple
Gear corresponds to the control gear of the braking force distribution controller respectively.
5. Brake energy recovery control method according to claim 1, it is characterised in that also including E steps：If brake force
Dispensing controller receives the energy regenerating energy storage full signal of electric brake controller, then by the idle stroke of brake fluid control device
Zero is kept to, brake force is provided by master cylinder.
6. the Brake energy recovery control method according to any one of claim 1-5, it is characterised in that the brake force point
DSP control technologies are adopted with controller.
7. Brake energy recovery control method according to claim 6, it is characterised in that the braking force distribution controller
Control input for brake pedal stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634945.9A CN104442414B (en) | 2014-11-13 | 2014-11-13 | Brake energy recycling control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634945.9A CN104442414B (en) | 2014-11-13 | 2014-11-13 | Brake energy recycling control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104442414A CN104442414A (en) | 2015-03-25 |
| CN104442414B true CN104442414B (en) | 2017-03-22 |
Family
ID=52889440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410634945.9A Active CN104442414B (en) | 2014-11-13 | 2014-11-13 | Brake energy recycling control method |
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| Country | Link |
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| CN (1) | CN104442414B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112020000543A2 (en) * | 2017-07-13 | 2020-09-01 | Honda Motor Co., Ltd. | method and device for collecting and supplying brake fluid |
| CN108511824A (en) * | 2018-02-27 | 2018-09-07 | 安徽夏禹新能源科技有限公司 | Automobile batteries grading system with energy recovery function |
| CN110588359B (en) * | 2019-08-23 | 2022-09-16 | 江苏大学 | Control method and control device for braking energy recovery |
| CN112519587A (en) * | 2020-12-03 | 2021-03-19 | 宁波拓普集团股份有限公司 | Braking energy distribution method for electric automobile |
| CN112572385A (en) * | 2020-12-22 | 2021-03-30 | 广西柳工机械股份有限公司 | Pure electric loader braking system and braking control method |
| CN114559916A (en) * | 2021-03-17 | 2022-05-31 | 长城汽车股份有限公司 | Braking energy recovery control method, system and valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734164A (en) * | 2009-12-21 | 2010-06-16 | 清华大学 | Automobile composite braking system |
| CN102310850A (en) * | 2011-06-15 | 2012-01-11 | 浙江亚太机电股份有限公司 | Electric vehicle braking system capable of reclaiming braking energy |
| CN202965985U (en) * | 2012-12-03 | 2013-06-05 | 浙江工业大学 | Parallel-connection hydraulic regenerative braking energy recovery system of electromobile |
| CN103253256A (en) * | 2013-04-27 | 2013-08-21 | 同济大学 | Electromobile electro-hydraulic composite braking system and braking controlling method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040251095A1 (en) * | 2003-06-12 | 2004-12-16 | Hydro-Quebec | Electric vehicle braking system |
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2014
- 2014-11-13 CN CN201410634945.9A patent/CN104442414B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734164A (en) * | 2009-12-21 | 2010-06-16 | 清华大学 | Automobile composite braking system |
| CN102310850A (en) * | 2011-06-15 | 2012-01-11 | 浙江亚太机电股份有限公司 | Electric vehicle braking system capable of reclaiming braking energy |
| CN202965985U (en) * | 2012-12-03 | 2013-06-05 | 浙江工业大学 | Parallel-connection hydraulic regenerative braking energy recovery system of electromobile |
| CN103253256A (en) * | 2013-04-27 | 2013-08-21 | 同济大学 | Electromobile electro-hydraulic composite braking system and braking controlling method thereof |
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| Publication number | Publication date |
|---|---|
| CN104442414A (en) | 2015-03-25 |
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