CN108058618A - A kind of vehicular electric machine control method - Google Patents
A kind of vehicular electric machine control method Download PDFInfo
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- CN108058618A CN108058618A CN201711341410.2A CN201711341410A CN108058618A CN 108058618 A CN108058618 A CN 108058618A CN 201711341410 A CN201711341410 A CN 201711341410A CN 108058618 A CN108058618 A CN 108058618A
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- speed
- vehicle
- motor
- rotating speed
- distance
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Classifications
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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
- B60L15/2036—Electric differentials, e.g. for supporting steering 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
- 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
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
- B62D5/0463—Controlling the motor calculating assisting torque from the motor based on driver input
-
- 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
- B60L2240/421—Speed
-
- 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)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of vehicular electric machine control methods, the rotating speed of the current travel speed of vehicle, traveling acceleration and current motor is obtained according to electric machine controller and gearbox control, and the vehicle and the first distance of first vehicle and the second vehicle second distance are obtained according to tachogenerator, the second vehicle is the vehicle positioned at parking stall direction；Judge whether first distance is less than the first preset value and whether the rotating speed of current motor is more than preset rotation speed；In the described first distance not less than the first preset value and in the case where the rotating speed of the current motor is not less than preset rotation speed, on the premise of reduce-speed sign is not received by, the rotating speed for keeping the motor is constant；It is less than the second preset value and in the case where the rotating speed of the current motor is less than preset rotation speed in the second distance, on the premise of reduce-speed sign is not received by, reminds to increase the rotating speed of motor.Using embodiment provided by the invention, effectively motor can be controlled.
Description
Technical field
The present invention relates to motor control technology field, more particularly to a kind of vehicular electric machine control method.
Background technology
At present there are two types of more popular Electronic differential control strategies：It is adjusted based on rotational speed regulation and based on torque.Two kinds
Control strategy respectively has advantage and disadvantage：Adjustment turns in due course for load variation when differential strategy based on direct torque can be run according to vehicle
Square exports, and dynamic property is good, and reaction is fast, and adaptivity is strong, but the essence of differential control is rotating speed, and torque is for the shadow of speed
Sound is realized by kinetics equation, due to, there are first derivative, being non-linear relation, therefore controlling torque pair between torque and rotating speed
There is delay effect in the change of speed；Differential strategy based on rotating speed control can be accurately controlled vehicle wheel rotational speed, and motor is adopted at this time
With velocity close-loop control, adjustment torque current value in real time can be changed according to road load, rotating speed is made to maintain to stablize, therefore stability
Good, precision is high, but then since torque is uncontrollable, it is impossible to make a response in time to the various operating modes of vehicle operation and
Adjustment in real time, dynamic is poor, adaptive weak.
Vehicle steering mechanism is one of important composition of vehicle, and the steering that the quality of performance directly affects vehicle is motor-driven
Property and transmission efficiency.Therefore it is always the important subject of Vehicle Engineering to the research of the steering mechanism of function admirable.
When two rear wheel drives of vehicle, in Turning travel, since coaxial left and right rear wheel rotation speed is different, two wheel slips is caused to be sent out
Changing, then the transfer due to analysis of wheel vertical load, the rotary resistance caused jointly suffered by the trailing wheel of left and right is different, to traveling
In vehicle stability influence it is very big.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of vehicular electric machine control method, it is intended to realize to motor speed
Control, and method is realized simple, takes effect quick.
To achieve the above object, the present invention provides following technical solution：
A kind of vehicular electric machine control method, including：
The current travel speed of vehicle, traveling acceleration and current are obtained according to electric machine controller and gearbox control
The rotating speed of motor, and according to tachogenerator obtain the vehicle and first vehicle the first distance, with the second vehicle the
Two distances, wherein, first vehicle is the vehicle positioned at the vehicle headstock direction, and second vehicle is positioned at the vehicle
The vehicle in position direction；
Judge whether first distance be less than the rotating speed of the first preset value and the current motor more than default
Rotating speed；
In the described first distance not less than the first preset value, and it is not less than preset rotation speed in the rotating speed of the current motor
In the case of, on the premise of reduce-speed sign is not received by, the rotating speed for keeping the motor is constant；
The second distance be less than the second preset value, and the current motor rotating speed be less than preset rotation speed situation
Under, on the premise of reduce-speed sign is not received by, remind to increase the rotating speed of motor.
It is described to be less than the second preset value in the second distance in a preferred embodiment of the present invention, and work as described
In the case that the rotating speed of front motor is less than preset rotation speed, on the premise of reduce-speed sign is not received by, remind to increase electricity
The rotating speed of machine, including：
The second distance be less than the second preset value, and the current motor rotating speed be less than preset rotation speed situation
Under, on the premise of reduce-speed sign is not received by, obtain the difference between second distance and the second preset value；
According to the difference, increased minimum motor speed is determined；
According to the minimum motor speed, remind to increase the rotating speed of motor.
In a preferred embodiment of the present invention, the rotating speed in the motor is increased, returns and performs according to survey
Fast sensor obtains the step of vehicle is with the first distance of first vehicle and the second vehicle second distance.
In a preferred embodiment of the present invention, the minimum motor speed is positive value.
It is described according to the difference in a preferred embodiment of the present invention, determine the meter of increased minimum motor speed
Formula is calculated, including：
N=S/r
Wherein, n is minimum motor speed, and S is the difference, and r is the perimeter of tire.
Vehicular electric machine control method provided by the invention, has the advantages that：
It, can be according to electric machine controller and gearbox using a kind of vehicular electric machine control method provided in an embodiment of the present invention
Controller obtains the rotating speed of the current travel speed of vehicle, traveling acceleration and current motor, and is obtained according to tachogenerator
The first distance and the second vehicle second distance of vehicle and the first vehicle are obtained, wherein, the first vehicle is positioned at vehicle headstock direction
Vehicle, the second vehicle be positioned at parking stall direction vehicle；And judge first distance whether be less than the first preset value and work as
Whether the rotating speed of front motor is more than preset rotation speed；In the first distance not less than the first preset value, and current motor rotating speed not
In the case of less than preset rotation speed, on the premise of reduce-speed sign is not received by, the rotating speed for keeping motor is constant；Second away from
From less than the second preset value, and in the case where the rotating speed of current motor is less than preset rotation speed, it is being not received by reduce-speed sign
On the premise of, it reminds to increase the rotating speed of motor.It is achieved thereby that the control to motor speed, and this method is realized simply,
It is easy to operate, convenient for promoting the use of.
Description of the drawings
Fig. 1 is the flow diagram of the vehicular electric machine control method of the present invention.
Specific embodiment
To make the purpose, technical scheme and advantage of invention of greater clarity, below by attached drawing and embodiment, to this
Inventive technique scheme is further elaborated.However, it should be understood that specific embodiment described herein is only used to solve
Technical solution of the present invention is released, is not intended to limit the invention the scope of technical solution.
For solve prior art problem, the present invention provides as shown in Figure 1 be a kind of vehicular electric machine control method, including：
S1:According to electric machine controller and gearbox control obtain the current travel speed of vehicle, traveling acceleration and
The rotating speed of current motor, and the vehicle and the first distance of first vehicle and the second vehicle are obtained according to tachogenerator
Second distance, wherein, first vehicle is the vehicle positioned at the vehicle headstock direction, and second vehicle is positioned at institute
State the vehicle in parking stall direction；
In the raw embodiment of the present invention, the rotating speed of preceding travel speed, traveling acceleration and current motor can distinguish root
System is obtained according to the speed of electric machine controller and vehicle to obtain, usual speed obtains the master controller that system is vehicle, institute
Master controller is stated to be communicatively coupled with electric machine controller and gearbox control respectively.Tachogenerator is controlled respectively with center
Device processed communicates, and the vehicle speed information measured is sent to master controller.So as to obtain vehicle and the front one respectively
The distance of vehicle, the distance with vehicle and a vehicle behind；Respectively the first distance and second distance.
S2:Judge whether first distance is less than the first preset value and whether the rotating speed of the current motor is more than in advance
If rotating speed；
Judge respectively after S1 the magnitude relationship of the first distance and the first preset value and the rotating speed of current motor with it is pre-
If the relation of rotating speed.
S3:In the described first distance not less than the first preset value, and turn in the rotating speed of the current motor not less than default
In the case of speed, on the premise of reduce-speed sign is not received by, the rotating speed for keeping the motor is constant；
In the first distance not less than the first preset value, and it is not less than the situation of preset rotation speed in the rotating speed of the current motor
Under, on the premise of reduce-speed sign is not received by, remain that the rotating speed of the motor is constant, in this way, user is in vehicle row
During sailing, absolute steady sensation can be obtained, the sensation of the acceleration and deceleration of vehicle can be reduced, so as to improve relaxing for user
Appropriateness experience.
S4:It is less than the second preset value in the second distance, and is less than preset rotation speed in the rotating speed of the current motor
In the case of, on the premise of reduce-speed sign is not received by, remind to increase the rotating speed of motor.
It is and small in the rotating speed of the current motor when the second distance is less than the second preset value in the embodiment of the present invention
In the case of preset rotation speed, on the premise of reduce-speed sign is not received by, illustrate that current drive speed is too low, and due to
There is safe distance before and after vehicle, it is possible to user be reminded to carry out traveling of increasing speed.While ensure that driving safety
Drive speed can be further ensured that again.
It, can be according to electric machine controller and gearbox using a kind of vehicular electric machine control method provided in an embodiment of the present invention
Controller obtains the rotating speed of the current travel speed of vehicle, traveling acceleration and current motor, and is obtained according to tachogenerator
The first distance and the second vehicle second distance of vehicle and the first vehicle are obtained, wherein, the first vehicle is positioned at vehicle headstock direction
Vehicle, the second vehicle be positioned at parking stall direction vehicle；And judge first distance whether be less than the first preset value and work as
Whether the rotating speed of front motor is more than preset rotation speed；In the first distance not less than the first preset value, and current motor rotating speed not
In the case of less than preset rotation speed, on the premise of reduce-speed sign is not received by, the rotating speed for keeping motor is constant；Second away from
From less than the second preset value, and in the case where the rotating speed of current motor is less than preset rotation speed, it is being not received by reduce-speed sign
On the premise of, it reminds to increase the rotating speed of motor.It is achieved thereby that the control to motor speed, and this method is realized simply,
It is easy to operate, convenient for promoting the use of.
In a preferred embodiment of the present invention, it is less than the second preset value in second distance, and in the rotating speed of current motor
It in the case of less than preset rotation speed, on the premise of reduce-speed sign is not received by, reminds to increase the rotating speed of motor, wrap
It includes：It is less than the second preset value and in the case where the rotating speed of current motor is less than preset rotation speed in second distance, is not receiving
On the premise of reduce-speed sign, the difference between second distance and the second preset value is obtained；According to difference, increased minimum is determined
Motor speed；According to minimum motor speed, remind to increase the rotating speed of motor.
In a preferred embodiment of the present invention, the rotating speed in motor is increased, returns and performs according to the biography that tests the speed
The step of the first distance and the second vehicle second distance of sensor acquisition vehicle and the first vehicle.
In a preferred embodiment of the present invention, minimum motor speed be positive value.
In a preferred embodiment of the present invention, according to difference, determine the calculation formula of increased minimum motor speed, wrap
It includes：N=S/r, wherein, n is minimum motor speed, and S is difference, and r is the perimeter of tire.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of vehicular electric machine control method, which is characterized in that including：
The current travel speed of vehicle, traveling acceleration and current motor are obtained according to electric machine controller and gearbox control
Rotating speed, and according to tachogenerator obtain the vehicle and first vehicle the first distance, with the second vehicle second away from
From, wherein, first vehicle is the vehicle positioned at the vehicle headstock direction, and second vehicle is positioned at the parking stall side
To vehicle；
Judge whether first distance is less than the first preset value and whether the rotating speed of the current motor is more than preset rotation speed；
In the described first distance not less than the first preset value, and it is not less than the situation of preset rotation speed in the rotating speed of the current motor
Under, on the premise of reduce-speed sign is not received by, the rotating speed for keeping the motor is constant；
It is less than the second preset value and in the case where the rotating speed of the current motor is less than preset rotation speed in the second distance,
On the premise of reduce-speed sign is not received by, remind to increase the rotating speed of motor.
2. vehicular electric machine control method according to claim 1, which is characterized in that described to be less than the in the second distance
Two preset values, and in the case where the rotating speed of the current motor is less than preset rotation speed, before reduce-speed sign is not received by
It puts, reminds to increase the rotating speed of motor, including：
It is less than the second preset value and in the case where the rotating speed of the current motor is less than preset rotation speed in the second distance,
On the premise of reduce-speed sign is not received by, the difference between second distance and the second preset value is obtained；
According to the difference, increased minimum motor speed is determined；
According to the minimum motor speed, remind to increase the rotating speed of motor.
3. vehicular electric machine control method according to claim 2, which is characterized in that in the increased feelings of the rotating speed of the motor
Under condition, return perform according to tachogenerator obtain the vehicle and first vehicle the first distance, with the second vehicle the
Two apart from the step of.
4. vehicular electric machine control method according to claim 2, which is characterized in that the minimum motor speed is just
Value.
5. vehicular electric machine control method according to claim 1, which is characterized in that it is described according to the difference, it determines to increase
The calculation formula of the minimum motor speed added, including：
N=S/r
Wherein, n is minimum motor speed, and S is the difference, and r is the perimeter of tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341410.2A CN108058618A (en) | 2017-12-14 | 2017-12-14 | A kind of vehicular electric machine control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341410.2A CN108058618A (en) | 2017-12-14 | 2017-12-14 | A kind of vehicular electric machine control method |
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| Publication Number | Publication Date |
|---|---|
| CN108058618A true CN108058618A (en) | 2018-05-22 |
Family
ID=62138796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711341410.2A Pending CN108058618A (en) | 2017-12-14 | 2017-12-14 | A kind of vehicular electric machine control method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005329941A (en) * | 2005-05-25 | 2005-12-02 | Mitsubishi Electric Corp | Inter-vehicle distance control device |
| CN101062685A (en) * | 2006-04-28 | 2007-10-31 | 本田技研工业株式会社 | Control device for a vehicle |
| DE102006043149A1 (en) * | 2006-09-14 | 2008-03-27 | Bayerische Motoren Werke Ag | Integrated transverse and longitudinal guidance assistant for motor vehicle, has trajectory calculating unit to calculate lane change trajectory with given distance of vehicle traveling in front, during distance regulated travel of vehicle |
| CN205131237U (en) * | 2015-07-31 | 2016-04-06 | 张文超 | System for automatic adjustment speed of a motor vehicle |
| CN105599639A (en) * | 2016-01-22 | 2016-05-25 | 福州大学 | Method and system for selecting and regulating speed of electric car |
| CN205344877U (en) * | 2016-01-22 | 2016-06-29 | 福州大学 | Electric automobile selects speed adjusting quick -mounting to put |
| CN106740847A (en) * | 2016-12-22 | 2017-05-31 | 江苏萝卜交通科技有限公司 | The self adaptation of four-wheel electric motor car is with car method |
| CN107161125A (en) * | 2017-04-20 | 2017-09-15 | 珠海骏驰科技有限公司 | A kind of automobile intelligent safety control loop |
-
2017
- 2017-12-14 CN CN201711341410.2A patent/CN108058618A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005329941A (en) * | 2005-05-25 | 2005-12-02 | Mitsubishi Electric Corp | Inter-vehicle distance control device |
| CN101062685A (en) * | 2006-04-28 | 2007-10-31 | 本田技研工业株式会社 | Control device for a vehicle |
| DE102006043149A1 (en) * | 2006-09-14 | 2008-03-27 | Bayerische Motoren Werke Ag | Integrated transverse and longitudinal guidance assistant for motor vehicle, has trajectory calculating unit to calculate lane change trajectory with given distance of vehicle traveling in front, during distance regulated travel of vehicle |
| CN205131237U (en) * | 2015-07-31 | 2016-04-06 | 张文超 | System for automatic adjustment speed of a motor vehicle |
| CN105599639A (en) * | 2016-01-22 | 2016-05-25 | 福州大学 | Method and system for selecting and regulating speed of electric car |
| CN205344877U (en) * | 2016-01-22 | 2016-06-29 | 福州大学 | Electric automobile selects speed adjusting quick -mounting to put |
| CN106740847A (en) * | 2016-12-22 | 2017-05-31 | 江苏萝卜交通科技有限公司 | The self adaptation of four-wheel electric motor car is with car method |
| CN107161125A (en) * | 2017-04-20 | 2017-09-15 | 珠海骏驰科技有限公司 | A kind of automobile intelligent safety control loop |
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Application publication date: 20180522 |
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