CN108422896A - A kind of electric vehicle deceleration increasing boat control system and method based under specific operation - Google Patents
A kind of electric vehicle deceleration increasing boat control system and method based under specific operation Download PDFInfo
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- CN108422896A CN108422896A CN201810108681.1A CN201810108681A CN108422896A CN 108422896 A CN108422896 A CN 108422896A CN 201810108681 A CN201810108681 A CN 201810108681A CN 108422896 A CN108422896 A CN 108422896A
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- electric vehicle
- deceleration
- vehicle
- specific operation
- target torque
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- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Slow down the invention discloses a kind of electric vehicle based under specific operation and increases boat control system and method, the system comprises speed feedback unit and entire car controllers, the entire car controller obtains speed information by the speed feedback unit, further includes deceleration identification module；Under the deceleration regime of electric vehicle, the deceleration identification module calculates linear deceleration numerical value and the corresponding required target torque needed for front deceleration according to current vehicle speed information and target vehicle speed information；The vehicle control unit controls electric motor of automobile exports power according to the target torque.The present invention determines the current desired linear deceleration numerical value of electric vehicle and corresponding required target torque according to speed signal, accelerator pedal signal and decelerator pedal signal, electric vehicle may be implemented linearly to slow down, avoid driver trample brake pedal slow down and caused by energy loss, to increase course continuation mileage, the test performance index of electric vehicle is improved.
Description
Technical field
The present invention relates to a kind of control system of electric vehicle and method more particularly to a kind of electricity based under specific operation
Electrical automobile, which slows down, increases boat control system and method.
Background technology
Electric vehicle needs to carry out the test under urban conditions and under the operating mode of suburbs before manufacture, by taking urban conditions as an example,
It needs to carry out five kinds of deceleration-operations under urban conditions, moreover, each deceleration-operation has fixed pattern, i.e., in specific speed
Slowed down under degree and reach scheduled target velocity, meanwhile, need the mileage for recording various deceleration mode downward drivings, and will in
The length of journey is as one of the index for weighing electric vehicle performance quality.
In practical operation, need to adjust speed by accelerator pedal and brake pedal by driver, still, due to nothing
Method accurately carries out speed control, inevitably will appear the excessive action for trampling brake pedal, this will directly influence electronic
Total kilometrage of the automobile under fixed electric quantity consumption, to the artificial test performance index for reducing electric vehicle.
Invention content
The present invention is directed to the drawbacks of prior art, provides a kind of electric vehicle deceleration increasing boat control based under specific operation
System and method.
Electric vehicle of the present invention based under specific operation, which slows down, increases boat control system, including speed feedback unit
And entire car controller, the entire car controller obtain speed information by the speed feedback unit, further include deceleration identification
Module；
Under the deceleration regime of electric vehicle, the deceleration identification module is believed according to current vehicle speed information and target vehicle speed
Breath calculates linear deceleration numerical value and corresponding required target torque needed for front deceleration；
The vehicle control unit controls electric motor of automobile exports power according to the target torque.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control system, further includes accelerator pedal
And brake pedal；
The entire car controller is according to the actuating signal of accelerator pedal, the actuating signal of brake pedal and current vehicle
Fast information determines the deceleration regime of electric vehicle.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control system, further includes motor control
Device；
The entire car controller controls the electric motor of automobile by the electric machine controller and is exported according to the target torque
Power.
The present invention also provides a kind of electric vehicle decelerations based under specific operation to increase boat control method, subtracts in electric vehicle
Under fast state, linear deceleration numerical value needed for front deceleration and right is calculated according to current vehicle speed information and target vehicle speed information
Answer required target torque；
Vehicle control unit controls electric motor of automobile exports power according to the target torque.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control method, according to accelerator pedal
Actuating signal, the actuating signal of brake pedal and current speed information determine the deceleration regime of electric vehicle.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control method, the entire car controller
The electric motor of automobile, which is controlled, by electric machine controller exports power according to the target torque.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control system and method, according to speed
Signal, accelerator pedal signal and decelerator pedal signal determine the current desired linear deceleration numerical value of electric vehicle and correspondence
Required target torque, and power is exported according to the target torque by vehicle control unit controls electric motor of automobile, electricity may be implemented
Electrical automobile linearly slows down, avoid driver trample brake pedal slow down and caused by energy loss, to increase
Course continuation mileage improves the test performance index of electric vehicle.
Description of the drawings
Fig. 1 is the structural schematic diagram that the electric vehicle deceleration of the present invention based under specific operation increases boat control system.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control system, involved specific work
Condition refers to NEDC operating modes, has specifically included four kinds under five kinds of deceleration-operations and the suburbs operating mode under urban conditions behaviour of slowing down
Make, has specific regulation for the speed of electric vehicle under these operating modes, therefore be easily identified in testing.
In order to improve the mileage travelled under above two operating mode, the electronic vapour of the present invention based under specific operation
It includes speed feedback unit and entire car controller that vehicle, which slows down and increases boat control system, and the entire car controller passes through the speed feedback
Unit obtains speed information, further includes deceleration identification module；Under the deceleration regime of electric vehicle, the deceleration identifies mould
Root tuber is calculated according to current vehicle speed information and target vehicle speed information needed for linear deceleration numerical value and correspondence needed for front deceleration
Target torque；The vehicle control unit controls electric motor of automobile exports power according to the target torque.
It is that the drive shaft of vehicle is directly imparted power to motor for electric vehicle, and entire car controller
It is the whole control unit of electric vehicle, is the core of whole-control system, is responsible for power output, power performance and energy pipe
Reason, by acquiring, receiving data and after calculation process, sends out control instruction to each control unit, controls the reality of vehicle
Border travels.For driver, by the operation to gear, accelerator pedal, brake pedal, driving intention is passed into vehicle
, and corresponding torque is calculated according to internal control algorithm by entire car controller, then moment of torsion control instruction is sent to motor
Controller drives vehicle to travel to control motor.Then, in the present invention, first by deceleration identification module according to current speed
Information and the target vehicle speed information to be reached of slowing down calculate the required linear deceleration numerical value of front deceleration and herein
Target torque under kind operating status needed for motor, then moment of torsion control instruction is sent out according to target torque by entire car controller, with
It is travelled by scheduled speed by electric machine controller to control motor-driven vehicle.
It should be noted that the data computing function involved by the deceleration identification module can also collect together in entire car controller
It is interior to be realized by newly-increased operation program, i.e., by entire car controller according to current vehicle speed information and the target carriage to be reached of slowing down
Fast information calculates linear deceleration numerical value, further, can also calculate the target under such operating status needed for motor and turn round
Square.Due to being run by linear ways of deceleration by controlling electric vehicle in the present invention, it is therefore not necessary to which human intervention can obtain
Expected slowing effect, moreover, because the control mode linearly slowed down is used, but also the operating status of electric vehicle is more
Ideal, the power consumption smaller of battery component, also increases the course continuation mileage under same electric quantity consumption, to improve electronic vapour
The test performance index of vehicle.Simultaneously as the electric machine assembly of electric vehicle has the characteristic that power generation is slowed down, therefore, above-mentioned
Electric energy production is had in linear moderating process, and the power generation torque in the moderating process that generates electricity can also meet under NEDC operating modes and slow down
Demand, then, if identify the deceleration intention of driver, and determination enter linear decelerating mode, so that it may control motor
Power generation make its export negative torque, this measure avoid driver trample brake pedal slow down and caused by energy loss.
Specifically, the electric vehicle of the present invention based under specific operation, which slows down, increases in boat control system, also wraps
Include accelerator pedal and brake pedal；The entire car controller according to the actuating signal of accelerator pedal, the actuating signal of brake pedal,
And current speed information determines the deceleration regime of electric vehicle.
Electric vehicle of the present invention based under specific operation, which slows down, to be increased in boat control system, further includes motor control
Device；The entire car controller controls the electric motor of automobile by the electric machine controller and exports power according to the target torque.
The present invention also provides a kind of electric vehicle decelerations based under specific operation to increase boat control method, i.e., in electric vehicle
Under deceleration regime, according to current vehicle speed information and target vehicle speed information calculate linear deceleration numerical value needed for front deceleration and
Corresponding required target torque；Again power is exported according to the target torque by vehicle control unit controls electric motor of automobile.Specifically,
The entire car controller can be controlled the electric motor of automobile by electric machine controller and export power according to the target torque.The present invention
The control method can slow down referring in particular to the electric vehicle above-mentioned based under specific operation increases boat control system to realize.
In the present invention, in order to determine that electric vehicle is currently entering deceleration regime, the action letter for acquiring accelerator pedal is needed
Number, the actuating signal of brake pedal and current speed information.For example, when collect accelerator pedal do not apply active force,
And decelerator pedal receives applied external force, in combination with current speed, you can determine that electric vehicle has entered deceleration regime.
It should be noted that still needing to rely on the setting to NEDC state of cyclic operation to the judgement of deceleration regime herein, because in NEDC works
Under condition, there is clearly corresponding deceleration demand for each speed interval, then, as long as reaching the speed of setting, so that it may with
Deceleration test is carried out in accordance with regulations, namely judges that electric vehicle is being currently entering deceleration regime.
Following table is the speed table corresponding with deceleration under NEDC operating modes：
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (6)
1. a kind of electric vehicle based under specific operation, which slows down, increases boat control system, including speed feedback unit and full-vehicle control
Device, the entire car controller obtain speed information by the speed feedback unit, which is characterized in that further include deceleration identification
Module；
Under the deceleration regime of electric vehicle, the deceleration identification module is according to current vehicle speed information and target vehicle speed information meter
Calculate the linear deceleration numerical value needed for front deceleration and corresponding required target torque；
The vehicle control unit controls electric motor of automobile exports power according to the target torque.
2. slowed down based on the electric vehicle under specific operation increases boat control system as described in claim 1, which is characterized in that also
Including accelerator pedal and brake pedal；
The entire car controller is believed according to the actuating signal of accelerator pedal, the actuating signal of brake pedal and current speed
Breath determines the deceleration regime of electric vehicle.
3. slowed down based on the electric vehicle under specific operation increases boat control system as claimed in claim 2, which is characterized in that also
Including electric machine controller；
The entire car controller controls the electric motor of automobile by the electric machine controller and exports power according to the target torque.
4. a kind of electric vehicle based under specific operation, which slows down, increases boat control method, which is characterized in that slow down in electric vehicle
Under state, linear deceleration numerical value and the correspondence needed for front deceleration are calculated according to current vehicle speed information and target vehicle speed information
Required target torque；
Vehicle control unit controls electric motor of automobile exports power according to the target torque.
5. slowed down based on the electric vehicle under specific operation increases boat control method as claimed in claim 4, which is characterized in that root
The deceleration of electric vehicle is determined according to the actuating signal of accelerator pedal, the actuating signal of brake pedal and current speed information
State.
6. slowed down based on the electric vehicle under specific operation increases boat control method as claimed in claim 5, which is characterized in that institute
It states entire car controller and the electric motor of automobile is controlled according to target torque output power by electric machine controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108681.1A CN108422896A (en) | 2018-02-01 | 2018-02-01 | A kind of electric vehicle deceleration increasing boat control system and method based under specific operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108681.1A CN108422896A (en) | 2018-02-01 | 2018-02-01 | A kind of electric vehicle deceleration increasing boat control system and method based under specific operation |
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| Publication Number | Publication Date |
|---|---|
| CN108422896A true CN108422896A (en) | 2018-08-21 |
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| CN201810108681.1A Pending CN108422896A (en) | 2018-02-01 | 2018-02-01 | A kind of electric vehicle deceleration increasing boat control system and method based under specific operation |
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| CN107031635A (en) * | 2017-04-14 | 2017-08-11 | 重庆长安汽车股份有限公司 | Low speed adaptive cruise control system and method |
| CN107139730A (en) * | 2017-03-31 | 2017-09-08 | 奇瑞汽车股份有限公司 | Electric automobile energy recovery method and device |
| CN107199893A (en) * | 2017-05-27 | 2017-09-26 | 北京新能源汽车股份有限公司 | Energy recovery method and device |
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2018
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224744A (en) * | 2007-01-12 | 2008-07-23 | 通用汽车公司 | Adaptive retarder control method and apparatus |
| CN103935264A (en) * | 2014-04-29 | 2014-07-23 | 大连理工大学 | Method for calculating torque required by electric automobile driver |
| CN104627001A (en) * | 2014-12-08 | 2015-05-20 | 北京新能源汽车股份有限公司 | Braking energy recovery regulation control method |
| CN106218442A (en) * | 2016-07-29 | 2016-12-14 | 北京现代汽车有限公司 | A kind of electric automobile max. speed control method and entire car controller |
| CN106904098A (en) * | 2017-02-13 | 2017-06-30 | 江西江铃集团新能源汽车有限公司 | Method for controlling driving speed and system |
| CN106932210A (en) * | 2017-03-31 | 2017-07-07 | 重庆小康工业集团股份有限公司 | The engine bench test system and its method of testing of NEDC cyclic brake operating modes |
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Application publication date: 20180821 |