CN101590852A - Motor-driven method for controlling gear shifting of two speed transmission - Google Patents
Motor-driven method for controlling gear shifting of two speed transmission Download PDFInfo
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- CN101590852A CN101590852A CNA2009103038654A CN200910303865A CN101590852A CN 101590852 A CN101590852 A CN 101590852A CN A2009103038654 A CNA2009103038654 A CN A2009103038654A CN 200910303865 A CN200910303865 A CN 200910303865A CN 101590852 A CN101590852 A CN 101590852A
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Abstract
The invention discloses a kind of motor-driven method for controlling gear shifting of two speed transmission.Its gear-shifting control process is: gear position sensor detects gearshift position information and gearshift position change information, tachogen obtains current motor speed and current vehicle speed, transmission control module calculates the motor rotating speed of target, and send instruction and give electric machine controller, make motor speed quick approach rotating speed of target, transmission control module detects gear shift and puts in place, and transmission control module is according to throttle information-driven motor.Gearshift procedure of the present invention is level and smooth, has reduced impact, has improved traveling comfort.
Description
Technical field
The present invention relates to the motor-driven method for controlling gear shifting of two speed transmission of a kind of self-propelled vehicle.
Background technology
Current self-propelled vehicle adopts five-speed transmission more, its objective is the tractive performance that improves vehicle, but the five-speed transmission complex structure, and needs power-transfer clutch and be mated, and the total system cost is very high, the fault rate height.But for battery-driven car, because the motor low-speed performance is fine, do not need too many gear, generally adopt shelves, at most only need two gears, the change-speed box of two gears increases on cost seldom, improves a lot on high low-speed performance.
A power-transfer clutch generally is housed between the motor of existing electronlmobil and the change speed gear box to cut off power and is convenient to gear shift, no matter adopt manpower to promote during gear shift or electricity driving gear shift, phase gear speed synchronization problem when all existing gear to enter engagement and jump out of mesh, if the two gear mesh place linear velocity is unequal, flank of tooth impact noise will be produced, gear can be damaged when serious.
Summary of the invention
In order to solve the above-mentioned technical matters that existing electric automobile gear control exists, the invention provides two grades of level and smooth shifting control methods of a kind of gearshift procedure.
The technical scheme that the present invention solves the problems of the technologies described above may further comprise the steps:
Controlled step by neutral gear to a grade or second gear is as follows:
Gear position sensor detect current gear by neutral gear when the conversion of a grade or second gear, tachogen obtains current motor speed and current vehicle speed, transmission control module calculates the motor rotating speed of target, and sends instruction and give electric machine controller, makes motor speed quick approach rotating speed of target;
Transmission control module detects gear shift and puts in place, and transmission control module is according to throttle information-driven motor;
As follows by neutral gear to the controlled step of R shelves:
When the reverse gear position sensor is triggered, gearshift position information will be passed to transmission control module, transmission control module is judged current gear and is moved to R shelves direction by neutral gear, transmission control module is sent instruction and is given electric machine controller, make the motor counter-rotating, and make one grade of rotating speed of motor speed quick approach;
Transmission control module detects gear shift and puts in place, and transmission control module is according to throttle information-driven motor.
Technique effect of the present invention is: the present invention adopts the gear shift of motor assist in synchronization, makes gearshift procedure level and smooth, has reduced impact, has improved traveling comfort; Cancel the clutch equipment of driving system, reduced system weight and cost.
The present invention is further illustrated below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a diagram of circuit of the present invention.
Fig. 2 is the gearshift position arrangement plan among the present invention.
Motor-driven two-speed transmission system pie graph among Fig. 3 the present invention.
The specific embodiment
Referring to Fig. 2, the car load among the present invention divides the position 4 gears, that is: 1 grade, 2 grades, neutral gear, R shelves, wherein 1,2 grade is D Drive, and neutral gear is the N shelves, the R shelves are reverse gear, the same with one grade in the inner type of drive of change speed gear box, transmitting ratio equates that with one grade different only is the position difference of gear-shift lever, after transmission control module detection reverse gear sensor is triggered, make the motor counter-rotating.
Referring to Fig. 3, Fig. 3 is a motor-driven two-speed transmission system pie graph.1 is drive shaft speed sensor among the figure, and 2 is drive motor, and 3 is two-speed transmission, and 4 is output shaft speed sensor, and 5 is the transmission shift fork axle, and 6 is gear-shift lever, and 7 is gear position sensor, and 8 is the reverse gear sensor, 9 transmission control module.Reverse gear sensor 8 is travel switches, is installed on the support on gear-shift lever next door, and as gear-shift lever (with reference to figure 2) when the neutral gear passage moves on to arrow locations, compression is also connected travel switch, and system knows that just chaufeur will change toward reverse gear.The gear-shift lever gear position sensor directly links to each other with gear-shift lever, and it becomes the continually varying electric signal to be input to transmission control module the change in location information translation of gear-shift lever.
Transmission control module is judged gearshift position by gear position sensor 7 and reverse gear sensor 8, obtains the information of current gear; By the detecting sensor changes in resistance, infer the sense of motion of gear-shift lever 6 simultaneously, i.e. the gear shift of chaufeur intention.Transmission control module also by detecting the signal of drive shaft speed sensor 1 and output shaft speed sensor 4, is obtained the information of current input shaft rotating speed and output shaft rotating speed, and is determined gear shift synchro control strategy with this simultaneously.
Sliding selector shaft 5 links to each other with gear-shift lever 6 by gear shift flexible axle or other connecting rod mechanism.Because there is the gap in connecting device, so during gear shift, gear-shift lever gear position sensor 7 will be than sliding selector shaft action earlier, so it can pass to transmission control module with the movable information of gear-shift lever 6 or the gear shift intention of chaufeur before the sliding selector shaft action, so that transmission control module utilizes this time difference to adjust or the control motor speed.
Active shift sleeve and driven shift sleeve must be synchronously before the gear shift, because motor shaft links to each other with the active shift sleeve, the driven shift sleeve of wheel links to each other, according to transmitting ratio, vehicle wheel rotational speed can be converted into the rotating speed of driven shift sleeve, as long as control motor (perhaps active shift sleeve) rotating speed equates with wheel velocity (driven shift sleeve), just can guarantee the synchronous of the moving shift sleeve of principal and subordinate, thereby realize quiet pulsation-free gear shift.
Diagram of circuit of the present invention as shown in Figure 1.Its detailed process is as follows:
1, neutral gear
Transmission control module judges that by detecting the value of gear position sensor current gear is a neutral gear, and transmission control module is sent instruction and given electric machine controller, makes electric machine controller not send any torque command, and motor status is tick over or shutdown.
2, by neutral gear to a grade (perhaps second gear)
The value of transmission control module gear position sensor judges that current gear is a neutral gear.
Chaufeur promotes gear-shift lever, and gear position sensor is passed to transmission control module to the gearshift position change information.Transmission control module judge gear by neutral gear to one grade (perhaps second gear) when direction moves, obtain current motor speed information and current vehicle speed information by tachogen simultaneously, calculate the motor rotating speed of target, and send instruction and give electric machine controller, make motor speed quick approach rotating speed of target.
For example, current vehicle speed is V (km/h), and base ratio is i
0, one grade of (perhaps second gear) speed ratio is i, and radius of wheel is R, and transmission control module collects speed information, by calculating the corresponding rotating speed of motor, n=V*i
0* i/ (2*pi*3.6*R), unit is rpm, and sends instruction and give electric machine controller, motor speed is reached fast or near n, this moment, initiatively shift sleeve and driven shift sleeve rotated synchronously.
Chaufeur continues to promote gear-shift lever, just can realize steady engagement, guarantees the ride comfort of vehicle '.
In case transmission control module detects gear shift and puts in place,, just can give the suitable driving command of motor according to the information of chaufeur Das Gaspedal through of short duration time-delay.
3, by neutral gear to the R shelves
The value of transmission control module gear position sensor judges that current gear is a neutral gear.
Chaufeur promotes gear-shift lever to the left side, and when the reverse gear position sensor is triggered, gearshift position information will be passed to transmission control module.Transmission control module judge gear by neutral gear when R shelves direction moves, transmission control module is sent instruction and is given electric machine controller, makes the motor counter-rotating.Because reverse gear is actually one grade, different only is the motor counter-rotating, so other control process is with grade the same by neutral gear to.Chaufeur continues to promote forward gear-shift lever, gear position sensor is passed to transmission control module to the gearshift position change information, transmission control module is judged gear and is moved to one grade of direction by neutral gear, send instruction and give electric machine controller, make one grade of rotating speed of motor speed quick approach, further promote gear-shift lever, just can realize steady engagement, guarantee the ride comfort of vehicle '.
4, by one grade (perhaps second gear, R shelves) to neutral gear
Transmission control module detects the value of gear position sensor, judges that current gear is one grade (perhaps second gear).
Chaufeur promotes gear-shift lever, and gear position sensor is passed to transmission control module to the gearshift position change information.Transmission control module is judged gear, and when the neutral gear direction moved, transmission control module was sent instruction to electric machine controller by one grade (perhaps second gear), made motor idle running.This moment, chaufeur just can promote gear-shift lever easily, and shift sleeve is broken away from, and change-speed box enters neutral gear.
Claims (1)
1. motor-driven method for controlling gear shifting of two speed transmission may further comprise the steps:
Controlled step by neutral gear to a grade or second gear is as follows:
Gear position sensor detect current gear by neutral gear when the conversion of a grade or second gear, tachogen obtains current motor speed and current vehicle speed, transmission control module calculates the motor rotating speed of target, and sends instruction and give electric machine controller, makes motor speed quick approach rotating speed of target;
Transmission control module detects gear shift and puts in place, and transmission control module is according to throttle information-driven motor;
As follows by neutral gear to the controlled step of R shelves:
When the reverse gear position sensor is triggered, gearshift position information will be passed to transmission control module, transmission control module is judged current gear and is moved to R shelves direction by neutral gear, transmission control module is sent instruction and is given electric machine controller, make the motor counter-rotating, and make one grade of rotating speed of motor speed quick approach;
Transmission control module detects gear shift and puts in place, and transmission control module is according to throttle information-driven motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103038654A CN101590852A (en) | 2009-06-30 | 2009-06-30 | Motor-driven method for controlling gear shifting of two speed transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103038654A CN101590852A (en) | 2009-06-30 | 2009-06-30 | Motor-driven method for controlling gear shifting of two speed transmission |
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| CN101590852A true CN101590852A (en) | 2009-12-02 |
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| CNA2009103038654A Pending CN101590852A (en) | 2009-06-30 | 2009-06-30 | Motor-driven method for controlling gear shifting of two speed transmission |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506163A (en) * | 2011-11-08 | 2012-06-20 | 湖南南车时代电动汽车股份有限公司 | Quick gear-shift control method and control system for electric vehicle gearbox |
| CN102720810A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | Automatic transmission, vehicle containing same and gearshift method thereof |
| WO2012152165A1 (en) * | 2011-05-06 | 2012-11-15 | 湖南三一智能控制设备有限公司 | Gear shifting control method and device and control system for engineering machinery |
| CN103144635A (en) * | 2013-02-26 | 2013-06-12 | 苏州汇川技术有限公司 | Mis-shift protection system and method for electric vehicle |
| CN103206531A (en) * | 2012-01-13 | 2013-07-17 | 上海捷能汽车技术有限公司 | Control method for electronic control mechanical automatic transmission |
| CN103253270A (en) * | 2013-05-10 | 2013-08-21 | 浙江吉利汽车研究院有限公司杭州分公司 | Method and device for lightening pause during shifting up |
| CN103386967A (en) * | 2012-05-08 | 2013-11-13 | 上海捷能汽车技术有限公司 | Control method for automatic gearbox and power system |
| CN103511618A (en) * | 2012-06-29 | 2014-01-15 | 上海捷能汽车技术有限公司 | Gear shifting executive device, electromobile with same and gear shifting control method |
| CN104648949A (en) * | 2014-12-26 | 2015-05-27 | 华南农业大学 | Automatic gear-shift device and control method of hillside orchard single-rail conveyor |
| CN103723142B (en) * | 2012-10-15 | 2016-05-04 | 北汽福田汽车股份有限公司 | Startup control method and the electric automobile of pure electric automobile |
| CN106838293A (en) * | 2017-03-27 | 2017-06-13 | 重庆瑞阳鑫驰新能源汽车有限责任公司 | A kind of electric motor car automatic gear shift apparatus and method |
| WO2018095006A1 (en) * | 2016-11-22 | 2018-05-31 | 山东理工大学 | Gear shifting intervention control method for two-gear x-by-wire automatic transmission of electric car |
| CN108549314A (en) * | 2018-04-25 | 2018-09-18 | 广东电网有限责任公司 | Testing transformer automatic gear shifting device and transformer |
| CN109458454A (en) * | 2018-11-16 | 2019-03-12 | 广州小鹏汽车科技有限公司 | A kind of automobile control method, device and automobile |
| CN111169481A (en) * | 2018-10-24 | 2020-05-19 | 现代自动车株式会社 | System and method for estimating vehicle wheel speed |
-
2009
- 2009-06-30 CN CNA2009103038654A patent/CN101590852A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720810B (en) * | 2011-03-30 | 2016-03-02 | 比亚迪股份有限公司 | Automatic transmission, the vehicle comprising this automatic transmission and process for gear thereof |
| CN102720810A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | Automatic transmission, vehicle containing same and gearshift method thereof |
| WO2012152165A1 (en) * | 2011-05-06 | 2012-11-15 | 湖南三一智能控制设备有限公司 | Gear shifting control method and device and control system for engineering machinery |
| CN102506163A (en) * | 2011-11-08 | 2012-06-20 | 湖南南车时代电动汽车股份有限公司 | Quick gear-shift control method and control system for electric vehicle gearbox |
| CN103206531A (en) * | 2012-01-13 | 2013-07-17 | 上海捷能汽车技术有限公司 | Control method for electronic control mechanical automatic transmission |
| CN103206531B (en) * | 2012-01-13 | 2016-02-17 | 上海捷能汽车技术有限公司 | For the controlling method of electrical control automatic manual transmission case |
| CN103386967A (en) * | 2012-05-08 | 2013-11-13 | 上海捷能汽车技术有限公司 | Control method for automatic gearbox and power system |
| CN103386967B (en) * | 2012-05-08 | 2016-01-13 | 上海捷能汽车技术有限公司 | For control method and the power system of automatic transmission with hydraulic torque converter |
| CN103511618A (en) * | 2012-06-29 | 2014-01-15 | 上海捷能汽车技术有限公司 | Gear shifting executive device, electromobile with same and gear shifting control method |
| CN103723142B (en) * | 2012-10-15 | 2016-05-04 | 北汽福田汽车股份有限公司 | Startup control method and the electric automobile of pure electric automobile |
| CN103144635A (en) * | 2013-02-26 | 2013-06-12 | 苏州汇川技术有限公司 | Mis-shift protection system and method for electric vehicle |
| CN103144635B (en) * | 2013-02-26 | 2015-10-28 | 苏州汇川技术有限公司 | A kind of mistake gearshift protection system of electronlmobil and method |
| CN103253270A (en) * | 2013-05-10 | 2013-08-21 | 浙江吉利汽车研究院有限公司杭州分公司 | Method and device for lightening pause during shifting up |
| CN103253270B (en) * | 2013-05-10 | 2016-03-30 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of method and device of alarmming car when alleviating upshift |
| CN104648949A (en) * | 2014-12-26 | 2015-05-27 | 华南农业大学 | Automatic gear-shift device and control method of hillside orchard single-rail conveyor |
| WO2018095006A1 (en) * | 2016-11-22 | 2018-05-31 | 山东理工大学 | Gear shifting intervention control method for two-gear x-by-wire automatic transmission of electric car |
| CN106838293A (en) * | 2017-03-27 | 2017-06-13 | 重庆瑞阳鑫驰新能源汽车有限责任公司 | A kind of electric motor car automatic gear shift apparatus and method |
| CN108549314A (en) * | 2018-04-25 | 2018-09-18 | 广东电网有限责任公司 | Testing transformer automatic gear shifting device and transformer |
| CN111169481A (en) * | 2018-10-24 | 2020-05-19 | 现代自动车株式会社 | System and method for estimating vehicle wheel speed |
| CN109458454A (en) * | 2018-11-16 | 2019-03-12 | 广州小鹏汽车科技有限公司 | A kind of automobile control method, device and automobile |
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Open date: 20091202 |