CN107161010A - Electric car electricity recovery method - Google Patents
Electric car electricity recovery method Download PDFInfo
- Publication number
- CN107161010A CN107161010A CN201710255249.0A CN201710255249A CN107161010A CN 107161010 A CN107161010 A CN 107161010A CN 201710255249 A CN201710255249 A CN 201710255249A CN 107161010 A CN107161010 A CN 107161010A
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- CN
- China
- Prior art keywords
- brake
- recovery method
- generator
- period
- controller
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- 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.)
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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
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
Abstract
The invention discloses a kind of electric car electricity recovery method, including the brake depth transducer being connected with brake pedal, batteries, battery management module, entire car controller, generator and high pressure broken-circuit controller；Entire car controller respectively with brake depth transducer, battery management module, high pressure broken-circuit controller and generating mechatronics；High pressure broken-circuit controller is electrically connected with batteries and battery management module respectively.The present invention has the characteristics of electricity recovering effect is good.
Description
Technical field
Technical field is reclaimed the present invention relates to electric car electricity, more particularly, to a kind of good electric car of electricity recovering effect
Electricity recovery method.
Background technology
Electric automobile, by the way that motor is in into generating state, makes vehicle produce brake force in deceleration or braking
Square, while being referred to as energy regenerating there is provided the mode of course continuation mileage using produced electric energy reversely charging to battery.
Brake energy recovery is delivered to speed change by the change of vehicle wheel rotational speed through differential mechanism, then mechanical energy is converted into by motor
Electric energy is recovered to power supply group.
Traditional electric vehicle energy way of recycling is：Brake pedal provides braking model, and signal is delivered to full-vehicle control mould
Block, full-vehicle control module decides whether progress Brake energy recovery according to running state of the vehicle and the state of other control modules,
And when distributing energy regenerating auxiliary brake torque size.Drive a vehicle and experience during in order to consider user's accelerator releasing and step on braking, generally
Control recovery electric current is smaller, and energy regenerating effect is poor.
The content of the invention
The goal of the invention of the present invention is to overcome the electric vehicle energy way of recycling energy regenerating effect of prior art poor
Not enough there is provided a kind of good electric car electricity recovery method of electricity recovering effect.
To achieve these goals, the present invention uses following technical scheme：
A kind of electric car electricity recovery method, including the brake depth transducer being connected with brake pedal, batteries store
Battery management module, entire car controller, generator and high pressure broken-circuit controller；Entire car controller respectively with brake depth sensing
Device, battery management module, high pressure broken-circuit controller and generating mechatronics；High pressure broken-circuit controller respectively with batteries and
Battery management module is electrically connected；
Comprise the following steps：Driver steps on brake pedal, and brake depth transducer detects the brake depth of brake pedal, vehicle
Controller is by controlling the phase of alternating current to make the moment of torsion of generator be negative, electrical power generators；
Depth of braking is deeper, and the generation current of vehicle control unit controls generator is bigger.
The present invention can significantly improve the utilization rate that the braking of electric car recovers energy.
The mode that existing electric vehicle energy is reclaimed is usually that brake pedal provides brake signal, controller control electric car transformation
For engine, but due to considering to be experienced with garage's car, the electric current of energy regenerating is small (usual maximum controlling current is 30-40A), system
Energy recovery utilization rate is low, typically in 2%-3% or so.
The present invention is by increasing brake depth transducer there is provided brake depth signal, and controller can be controlled according to this signal
The size of energy regenerating electric current, the energy regenerating electric current of maximum is obtained so as to be driven a vehicle in user between impression and energy regenerating size,
So as to improve braking energy utilization rate.
In conventional brake energy recovery process, to consider the driving impression of user, reclaim electric current maximum and be set to 30-
40A, energy recovery rate is low (2-3% or so).The present invention effectively raises the utilization rate of energy regenerating, in city driving cycle
(in the case that braking is more), energy regenerating utilization rate can bring up to 5%-10% (real steering vectors).
Preferably, the brake depth transducer includes fixed bin, the driving lever being connected with fixed bin and wire output cassette,
Driving lever is connected with brake pedal, and driving lever and fixed bin are provided with angular transducer, and angular transducer is electrically connected with entire car controller.
Preferably, r points of the angle that brake depth is detected according to angular transducer is 3 grades, set angle sensor
The maximum angle of detection is R, and the maximum generation electric current of generator is W；
As r≤R/3, the generation current of vehicle control unit controls generator is 0.2W to 0.3W；
As R/3 ＜ r≤2R/3, the generation current of vehicle control unit controls generator is 0.6W；
As r ＞ 2R/3, the generation current of vehicle control unit controls generator is 0.8W-0.95W.
Preferably, also including accelerator pedal, accelerator pedal is electrically connected with entire car controller.
Preferably, also including vehicle speed sensor, vehicle speed sensor is electrically connected with entire car controller.
Preferably, the angle signal of angular transducer detection is handled as follows, the angle value detected：
Computer selecting angular transducer detects the current slot A1 and previous period B1 of signal, each period
Inside there is n1 detected value,
Setting time section A1 detected value is xi, period B1 each detected value is yi, i=1,2 ..., n1；
Utilize formulaCalculate the similarity of two period correspondence detected values；
If si＜ 1, then will be with siCorresponding yiDelete；Wherein,For the average value of all detected values in period A1,It is
The average value of all detected values in period B1, entire car controller calculates remaining y in period B1iAverage value is obtained, will be flat
Average is used as the detection angles value currently exported.
Therefore, the present invention has the advantages that：The utilization rate of energy regenerating is effectively raised, energy regenerating is utilized
Rate can bring up to 5%-10%.
Brief description of the drawings
Fig. 1 is a kind of theory diagram of the present invention；
Fig. 2 is a kind of structural representation of brake depth transducer of the present invention.
In figure：Brake pedal 1, brake depth transducer 2, batteries 3, battery management module 4, entire car controller 5,
Generator 6, high pressure broken-circuit controller 7, accelerator pedal 8, vehicle speed sensor 9, fixed bin 21, driving lever 22, wire output cassette 23, angle
Spend sensor 24.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
A kind of electric car electricity recovery method as shown in Figure 1, including the brake depth transducer being connected with brake pedal 1
2, batteries 3, battery management module 4, entire car controller 5, generator 6 and high pressure broken-circuit controller 7；Entire car controller point
Not with brake depth transducer, battery management module, high pressure broken-circuit controller and generating mechatronics；High pressure broken-circuit controller
Electrically connected respectively with batteries and battery management module；Also include accelerator pedal 8, accelerator pedal is electrically connected with entire car controller
Connect.Also include vehicle speed sensor 9, vehicle speed sensor is electrically connected with entire car controller.
Comprise the following steps：Driver steps on brake pedal, and brake depth transducer detects the brake depth of brake pedal, vehicle
Controller is by controlling the phase of alternating current to make the moment of torsion of generator be negative, electrical power generators；
Depth of braking is deeper, and the generation current of vehicle control unit controls generator is bigger.
As shown in Fig. 2 brake depth transducer includes fixed bin 21, the driving lever 22 and wire output cassette being connected with fixed bin
23, driving lever is connected with brake pedal, and driving lever and fixed bin are provided with angular transducer 24, angular transducer and entire car controller electricity
Connection.
R points of the angle that brake depth is detected according to angular transducer is 3 grades, the maximum of set angle sensor detection
Angle is R, and the maximum generation electric current of generator is W；
As r≤R/3, the generation current of vehicle control unit controls generator is 0.3W；
As R/3 ＜ r≤2R/3, the generation current of vehicle control unit controls generator is 0.6W；
As r ＞ 2R/3, the generation current of vehicle control unit controls generator is 0.9W.
The angle signal of angular transducer detection is handled as follows, the angle value detected：
Computer selecting angular transducer detects the current slot A1 and previous period B1 of signal, each period
Inside there is n1 detected value,
Setting time section A1 detected value is xi, period B1 each detected value is yi, i=1,2 ..., n1；A1 and B1
It it is 1 minute, n1 is 60.
Utilize formulaCalculate the similarity of two period correspondence detected values；
If si＜ 1, then will be with siCorresponding yiDelete；Wherein,For the average value of all detected values in period A1,It is
The average value of all detected values in period B1, entire car controller calculates remaining y in period B1iAverage value is obtained, will be flat
Average is used as the detection angles value currently exported.
It should be understood that the present embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
Read after the content of the invention lectured, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (6)
1. a kind of electric car electricity recovery method, it is characterized in that, including the brake depth transducer being connected with brake pedal (1)
(2), batteries (3), battery management module (4), entire car controller (5), generator (6) and high pressure broken-circuit controller (7)；
Entire car controller respectively with brake depth transducer, battery management module, high pressure broken-circuit controller and generating mechatronics；It is high
Pressure broken-circuit controller is electrically connected with batteries and battery management module respectively；
Comprise the following steps：Driver steps on brake pedal, and brake depth transducer detects the brake depth of brake pedal, full-vehicle control
Device is by controlling the phase of alternating current to make the moment of torsion of generator be negative, electrical power generators；
Depth of braking is deeper, and the generation current of vehicle control unit controls generator is bigger.
2. electric car electricity recovery method according to claim 1, it is characterized in that, the brake depth transducer includes solid
Determine box (21), the driving lever being connected with fixed bin (22) and wire output cassette (23), driving lever is connected with brake pedal, driving lever and fixation
Box is provided with angular transducer (24), and angular transducer is electrically connected with entire car controller.
3. electric car electricity recovery method according to claim 2, it is characterized in that, brake depth is examined according to angular transducer
R points of the angle of survey is 3 grades, and the maximum angle of set angle sensor detection is R, and the maximum generation electric current of generator is W；
As r≤R/3, the generation current of vehicle control unit controls generator is 0.2W to 0.3W；
As R/3 ＜ r≤2R/3, the generation current of vehicle control unit controls generator is 0.6W；
As r ＞ 2R/3, the generation current of vehicle control unit controls generator is 0.8W-0.95W.
4. electric car electricity recovery method according to claim 1, it is characterized in that, in addition to accelerator pedal (8), accelerate to step on
Plate is electrically connected with entire car controller.
5. electric car electricity recovery method according to claim 1, it is characterized in that, in addition to vehicle speed sensor (9), speed
Sensor is electrically connected with entire car controller.
6. the electric car electricity recovery method according to Claims 2 or 3 or 4 or 5, it is characterized in that, angular transducer detection
Angle signal be handled as follows, the angle value detected：
Computer selecting angular transducer detects the current slot A1 and previous period B1 of signal, has in each period
N1 detected value,
Setting time section A1 detected value is xi, period B1 each detected value is yi, i=1,2 ..., n1；
Utilize formulaCalculate the similarity of two period correspondence detected values；
If si＜ 1, then will be with siCorresponding yiDelete；Wherein,For the average value of all detected values in period A1,It is the time
The average value of all detected values in section B1, entire car controller calculates remaining y in period B1iAverage value is obtained, by average value
It is used as the detection angles value currently exported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710255249.0A CN107161010A (en) | 2017-04-18 | 2017-04-18 | Electric car electricity recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710255249.0A CN107161010A (en) | 2017-04-18 | 2017-04-18 | Electric car electricity recovery method |
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| CN107161010A true CN107161010A (en) | 2017-09-15 |
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| CN201710255249.0A Pending CN107161010A (en) | 2017-04-18 | 2017-04-18 | Electric car electricity recovery method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061115A (en) * | 2017-11-27 | 2018-05-22 | 浙江零跑科技有限公司 | Used in new energy vehicles braking executive device and control method |
| CN113320394A (en) * | 2021-06-22 | 2021-08-31 | 东风汽车集团股份有限公司 | Adaptive multi-mode energy recovery method and system based on road condition identification |
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| CN102574455A (en) * | 2009-10-19 | 2012-07-11 | 丰田自动车株式会社 | Drive control device for standby four-wheel drive vehicle |
| CN104044583A (en) * | 2013-03-15 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Hybrid vehicle and method of braking by controlling an exhaust heat recovery device bypass valve on a hybrid vehicle |
| CN105383456A (en) * | 2014-08-28 | 2016-03-09 | 马自达汽车株式会社 | Pedal stroke sensor attachment structure of automotive vehicle |
| CN106740141A (en) * | 2016-11-22 | 2017-05-31 | 浙江吉利控股集团有限公司 | A kind of energy recycle device of electric vehicle |
| CN103182940B (en) * | 2013-01-03 | 2017-12-01 | 芜湖宏宇汽车电子有限责任公司 | A kind of energy feedback brake system for electric automobile |
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2017
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Patent Citations (7)
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| CN101209675A (en) * | 2006-12-26 | 2008-07-02 | 比亚迪股份有限公司 | Electric automobile energy back-feed control method |
| CN102574455A (en) * | 2009-10-19 | 2012-07-11 | 丰田自动车株式会社 | Drive control device for standby four-wheel drive vehicle |
| CN103182940B (en) * | 2013-01-03 | 2017-12-01 | 芜湖宏宇汽车电子有限责任公司 | A kind of energy feedback brake system for electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061115A (en) * | 2017-11-27 | 2018-05-22 | 浙江零跑科技有限公司 | Used in new energy vehicles braking executive device and control method |
| CN113320394A (en) * | 2021-06-22 | 2021-08-31 | 东风汽车集团股份有限公司 | Adaptive multi-mode energy recovery method and system based on road condition identification |
| CN113320394B (en) * | 2021-06-22 | 2022-03-25 | 东风汽车集团股份有限公司 | Adaptive multi-mode energy recovery method and system based on road condition identification |
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Effective date of abandoning: 20200211 |