CN107499184A - A kind of automatic catch electric automobile gearshift method - Google Patents
A kind of automatic catch electric automobile gearshift method Download PDFInfo
- Publication number
- CN107499184A CN107499184A CN201710716593.5A CN201710716593A CN107499184A CN 107499184 A CN107499184 A CN 107499184A CN 201710716593 A CN201710716593 A CN 201710716593A CN 107499184 A CN107499184 A CN 107499184A
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- CN
- China
- Prior art keywords
- speed
- ref
- pid
- controller
- gearshift
- Prior art date
- 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
- 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
- B60L15/24—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 with main controller driven by a servomotor
-
- 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
- B60L15/2054—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 by controlling transmissions or clutches
-
- 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
-
- 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
Abstract
The invention provides a kind of automatic catch electric automobile gearshift method, it comprises the following steps：Acquisition demand gear gear；Determine whether gearshift demand；The product that T_ref is percent and T_max is set if being asked without gearshift；It is 0 then to set T_ref if any gearshift demand；Speed ring PID desired value pid.ref is arranged to speed_ref by electric machine controller, and speed ring PID value of feedback pid.fdb is arranged into motor speed speed, is performed speed ring PID and is exported pid.out；T_spd is arranged to PID output valve pid.out；Keep clutch to disconnect by shift motor if spd_diff is more than max_spddiff, and T_ref is arranged to T_spd, wherein spd_diff=ABS (speed_ref speed)；The product that the torque request T_ref of electric machine controller is arranged to largest request torque T _ max that percent allows with electric machine controller is completed to shift gears.The present invention obtains optimum shift speed in entire car controller and is sent to electric machine controller by CAN, and motor controller controls motor makes motor reach optimum shift speed, and the process for gear improves vehicle performance while realizing steady gearshift.
Description
Technical field
The present invention relates to automatic catch electric vehicle engineering field, particularly a kind of automatic catch electric automobile gearshift method.
Background technology
Existing variable speed electric automobile without gearshift so, impact during no gear shift or be significantly less than manual
Impact, ride comfort is stronger；It is but low during using variable speed because travel driving motor power torque output capability is limited
Fast booster response is slow, is lifted by power limit max. speed during high speed slow, and disadvantage mentioned above is that traditional variable speed electric automobile is walked
To the bottleneck in market.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of automatic catch electric automobile gearshift method, it includes following
Step：
S1:Parameter case controller TCU obtains the motor speed speed of electric machine controller transmission by CAN, while according to electricity
Machine rotating speed speed obtains demand gear gear；
S2:Parameter case controller TCU sends gearshift request and demand gear gear, vehicle by CAN to entire car controller
Controller determines whether gearshift demand after obtaining gearshift flag bit；
S3：It is percent and motor to the torque request T_ref of electric machine controller that entire car controller is set if being asked without gearshift
The product for largest request torque T _ max that controller allows is T_ref=percent*T-max, and wherein percent is vehicle control
Device processed gathers gas pedal and the current throttle aperture obtained；
S4：It is 0 to the torque request T_ref of electric machine controller then to set entire car controller if any gearshift demand, makes decelerating through motor
Clutch is waited to combine；
S5:Obtained demand gear gear of the entire car controller in S1 obtains the optimal shift speed on the gear
Speed_ref, and electric machine controller is transferred to by CAN；
S6:Speed ring PID desired value pid.ref is arranged to speed_ref by electric machine controller, by speed ring PID feedback
Value pid.fdb is arranged to motor speed speed, performs speed ring PID and exports pid.out；
S7：Speed ring requested torque T_spd is arranged to PID output valve pid.out；
S8:Judge whether spd_diff is more than maximum permission speed difference max_spddiff, such as larger than max_ that clutch combines
Spddiff then keeps clutch to disconnect by shift motor, and the torque request T_ref by entire car controller to electric machine controller
It is arranged to T_spd, wherein spd_diff is speed and speed_ref absolute difference, i.e. spd_diff=ABS (speed_
ref-speed)；
S9：Clutch is combined with motor if spd_diff is less than or equal to max_spddiff, and it is defeated that clutch combines rear motor
Go out end and be connected to gearbox, and entire car controller is arranged to percent and motor to the torque request T_ref of electric machine controller
The product for largest request torque T _ max that controller allows completes gearshift, i.e. T_ref=percent*T-max.
The invention has the advantages that：
Present invention design between motor and parameter case adds clutch, and entire car controller VCU obtains optimal gear shift speed
Spend and electric machine controller is sent to by CAN, motor controller controls motor makes motor reach optimum shift speed, and this is changed
Gear method improves vehicle performance while realizing steady gearshift.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, used required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 show automatic catch electric automobile gearshift method flow schematic diagram provided in an embodiment of the present invention；
Fig. 2 show automatic catch electric automobile gearshift method system schematic diagram provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, the embodiments of the invention provide a kind of automatic catch electric automobile gearshift method, it is based on such as Fig. 2 institutes
The automatic catch electric automobile gearshift method system shown, it comprises the following steps：
S1:Parameter case controller TCU obtains the motor speed speed of electric machine controller transmission by CAN, while according to electricity
Machine rotating speed speed obtains demand gear gear；
S2:Parameter case controller TCU sends gearshift request and demand gear gear, vehicle by CAN to entire car controller
Controller determines whether gearshift demand after obtaining gearshift flag bit；
S3：It is percent and motor to the torque request T_ref of electric machine controller that entire car controller is set if being asked without gearshift
The product for largest request torque T _ max that controller allows is T_ref=percent*T-max, and wherein percent is vehicle control
Device processed gathers gas pedal and the current throttle aperture obtained；
S4：It is 0 to the torque request T_ref of electric machine controller then to set entire car controller if any gearshift demand, makes decelerating through motor
Clutch is waited to combine；
S5:Obtained demand gear gear of the entire car controller in S1 obtains the optimal shift speed on the gear
Speed_ref, and electric machine controller is transferred to by CAN；
S6:Speed ring PID desired value pid.ref is arranged to speed_ref by electric machine controller, by speed ring PID feedback
Value pid.fdb is arranged to motor speed speed, performs speed ring PID and exports pid.out；
S7：Speed ring requested torque T_spd is arranged to PID output valve pid.out；
S8:Judge whether spd_diff is more than maximum permission speed difference max_spddiff, such as larger than max_ that clutch combines
Spddiff then keeps clutch to disconnect by shift motor, and the torque request T_ref by entire car controller to electric machine controller
It is arranged to T_spd, wherein spd_diff is speed and speed_ref absolute difference, i.e. spd_diff=ABS (speed_
ref-speed)；
S9：Clutch is combined if spd_diff is less than or equal to max_spddiff, and clutch is connected to reference to rear motor output end
Gearbox, and entire car controller is arranged to percent and electric machine controller permission to the torque request T_ref of electric machine controller
Largest request torque T _ max product complete gearshift, i.e. T_ref=percent*T-max.
Present invention design between motor and parameter case adds clutch, and entire car controller VCU is obtained and most preferably changed
Notch speed degree is simultaneously sent to electric machine controller by CAN, and motor controller controls motor makes motor reach optimum shift speed,
The process for gear improves vehicle performance while realizing steady gearshift.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (1)
- A kind of 1. automatic catch electric automobile gearshift method, it is characterised in that comprise the following steps：S1:Parameter case controller TCU obtains the motor speed speed of electric machine controller transmission by CAN, while according to electricity Machine rotating speed speed obtains demand gear gear；S2:Parameter case controller TCU sends gearshift request and demand gear gear, vehicle by CAN to entire car controller Controller determines whether gearshift demand after obtaining gearshift flag bit；S3：It is percent and motor to the torque request T_ref of electric machine controller that entire car controller is set if being asked without gearshift The product for largest request torque T _ max that controller allows is T_ref=percent*T-max, and wherein percent is vehicle control Device processed gathers gas pedal and the current throttle aperture obtained；S4：It is 0 to the torque request T_ref of electric machine controller then to set entire car controller if any gearshift demand, makes decelerating through motor Clutch is waited to combine；S5:Obtained demand gear gear of the entire car controller in S1 obtains the optimal shift speed on the gear Speed_ref, and electric machine controller is transferred to by CAN；S6:Speed ring PID desired value pid.ref is arranged to speed_ref by electric machine controller, by speed ring PID feedback Value pid.fdb is arranged to motor speed speed, performs speed ring PID and exports pid.out；S7：Speed ring requested torque T_spd is arranged to PID output valve pid.out；S8:Judge whether spd_diff is more than maximum permission speed difference max_spddiff, such as larger than max_ that clutch combines Spddiff then keeps clutch to disconnect by shift motor, and the torque request T_ref by entire car controller to electric machine controller It is arranged to T_spd, wherein spd_diff is speed and speed_ref absolute difference, i.e. spd_diff=ABS (speed_ ref-speed)；S9：Clutch is combined with motor if spd_diff is less than or equal to max_spddiff, and it is defeated that clutch combines rear motor Go out end and be connected to gearbox, and entire car controller is arranged to percent and motor to the torque request T_ref of electric machine controller The product for largest request torque T _ max that controller allows completes gearshift, i.e. T_ref=percent*T-max.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710716593.5A CN107499184A (en) | 2017-08-21 | 2017-08-21 | A kind of automatic catch electric automobile gearshift method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710716593.5A CN107499184A (en) | 2017-08-21 | 2017-08-21 | A kind of automatic catch electric automobile gearshift method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107499184A true CN107499184A (en) | 2017-12-22 |
Family
ID=60692476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710716593.5A Withdrawn CN107499184A (en) | 2017-08-21 | 2017-08-21 | A kind of automatic catch electric automobile gearshift method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107499184A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7282010B2 (en) * | 2004-10-12 | 2007-10-16 | Nissan Motor Co., Ltd. | Engine torque control device |
| US7544149B2 (en) * | 2005-08-01 | 2009-06-09 | Toyota Jidosha Kabushiki Kaisha | Shift control apparatus and shift control method of automatic transmission of vehicle |
| US7651439B2 (en) * | 2006-09-08 | 2010-01-26 | Hyundai Motor Company | Method for controlling skip down shift of automatic transmission for vehicle |
| CN105270387A (en) * | 2015-11-04 | 2016-01-27 | 东风商用车有限公司 | Gear-shifting control method for hybrid vehicle with AMT (Automated Mechanical Transmission) |
| CN106114493A (en) * | 2016-07-28 | 2016-11-16 | 长春孔辉汽车科技股份有限公司 | A kind of electric automobile AMT shift process control method |
-
2017
- 2017-08-21 CN CN201710716593.5A patent/CN107499184A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7282010B2 (en) * | 2004-10-12 | 2007-10-16 | Nissan Motor Co., Ltd. | Engine torque control device |
| US7544149B2 (en) * | 2005-08-01 | 2009-06-09 | Toyota Jidosha Kabushiki Kaisha | Shift control apparatus and shift control method of automatic transmission of vehicle |
| US7651439B2 (en) * | 2006-09-08 | 2010-01-26 | Hyundai Motor Company | Method for controlling skip down shift of automatic transmission for vehicle |
| CN105270387A (en) * | 2015-11-04 | 2016-01-27 | 东风商用车有限公司 | Gear-shifting control method for hybrid vehicle with AMT (Automated Mechanical Transmission) |
| CN106114493A (en) * | 2016-07-28 | 2016-11-16 | 长春孔辉汽车科技股份有限公司 | A kind of electric automobile AMT shift process control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171222 |