CN101210858A - Shift drive system for speed-changer synchronizer jack horse test bed - Google Patents
Shift drive system for speed-changer synchronizer jack horse test bed Download PDFInfo
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- CN101210858A CN101210858A CNA2006101703334A CN200610170333A CN101210858A CN 101210858 A CN101210858 A CN 101210858A CN A2006101703334 A CNA2006101703334 A CN A2006101703334A CN 200610170333 A CN200610170333 A CN 200610170333A CN 101210858 A CN101210858 A CN 101210858A
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Abstract
A gear shift driving system for transmission synchronizer rack test stand comprises a gear selecting motor, a gear engaging motor, a control device, two transmission gears and a gear shift sensor. One transmission gear is connected between the output shaft of the gear selecting motor and a gear shift operating rod and used for converting the rotational movement of the output shaft to rectilinear movement and transmitting to the gear shift operating rod of a transmission, so as to carry out gear selection of the gear shift operating rod; the other transmission gear is connected between the output shaft of the gear engaging motor and the gear shift operating rod and used for converting the rotational movement of the output shaft to rectilinear movement and transmitting to the gear shift operating rod of the transmission, so as to carry out gear selection of the gear shift operating rod; the gear shift sensor is electronically connected with the control device and used for obtaining the operation position of the gear shift operating rod and transmitting the electrical signal of the gear shift position to the control device; and the control device is electronically connected with the gear selecting motor and the gear engaging motor and respectively controlling the gear selecting motor and the gear engaging motor according to the electrical signal received from the gear shift sensor.
Description
Technical field
The present invention relates to the bench test of transmission for vehicles, relate in particular to a kind of shift drive system that is used for the speed-changer synchronizer bench test.
Background technology
Speed-changer synchronizer performance and durability test are important pilot projects in the transmission test.According to " the automotive mechanical transmission bench test method " that be numbered " QC/T 568-1999 " in " People's Republic of China's mechanical industry ministerial standard ", in speed-changer synchronizer performance and durability test, testing equipment generally adopts gearshift testing table or special-purpose synchronizer performance test stand.Gearshift can adopt hydraulic pressure, pneumatic or mechanical hook-up.Surveying instrument adopts various sensors, strainmeter and oscillograph etc.Measure and write down following parameter: a gearshift power during test; The b synchronous torque; The c synchronous rotational speed; D lock in time; The e tooth overlaps axial displacement; F synchronizer gearshift number of times.
In the prior art, some patented claims at the speed-changer synchronizer bench test have been proposed, CN 1603774 A for example, CN 1634722 A.
CN 1603774 A disclose a kind of saloon car transmission gearshift testing table control system, in the test that the PLC control system is applied to speed-changer synchronizer gearshift testing table, measure, write down and revise all kinds of parameters, make it reach the requirement of modification easy to operate, easy, easy care.In this piece patent documentation, be to utilize gearshift cylinder and block selecting cylinder as the shift drive system of testing variator.In addition, this system also mainly comprises: pull pressure sensor, connect the shift bar that selects of gearshift cylinder and variator, and be used to measure gearshift power; Displacement transducer links to each other with the shifting bar of variator, is used for measuring the gearshift displacement; Torque sensor is connected to variator by transmission shaft, is used to measure the output shaft rotating speed of variator; Waveform analyzer is used for data and curve that monitoring in real time and record comprise displacement, gearshift power, rotating speed, is the real-time reflection of speed-changer synchronizer performance.
CN 1634722 A disclose a kind of synchronizer test bench that comprises the hydraulic pressure gearshift, can be as required or determine the stroke of gearshift cylinder according to the gearshift stroke of actual variator.In this piece patent documentation, be to utilize gearshift oil cylinder and block selecting oil cylinder as the shift drive system of testing variator.In addition, this testing table also mainly comprises optoelectronic switch and some mechanical driving devices, as universal joint, spline housing, spline, rocking arm, connecting rod etc.
For the cylinder shift drive system among the CN 1603774, because the compressibility of gas can be impacted inevitably, thereby be caused shifting gears the stroke location difficulty.For the hydraulic cylinder shift drive system among CN 1634722 A, because the relatively long time of the mobile needs of hydraulic oil, so hydraulic cylinder gear shift drive system response speed is slow, gearshift power degree of regulation is low, is prone to situations such as gearshift is not in place.
Summary of the invention
The objective of the invention is to exist response speed slow at the existing speed-changer synchronizer jack horse test bed middle shift drive system that uses, shortcomings such as gearshift power degree of regulation is low provide a kind of response speed fast, the high gear shift driving mechanism that is used for speed-changer synchronizer stand platform of power degree of regulation of shifting gears.
The invention provides a kind of speed-changer synchronizer jack horse test bed shift drive system that is used for, this shift drive system comprises the block selecting motor, the motor of putting into gear, control device, two gearings and gear shift sensing device, wherein: a gearing is connected between the output shaft and gear shift operating rod of block selecting motor, is used for the rotatablely moving of output shaft of block selecting motor is converted into rectilinear motion, and pass to the gear shift operating rod of variator, to carry out the block selecting operation of this gear shift operating rod; Another gearing is connected between the output shaft and gear shift operating rod of the motor of putting into gear, and is used for the rotatablely moving of output shaft of the motor of putting into gear is converted into rectilinear motion, and passes to the gear shift operating rod of variator, to carry out the operation of putting into gear of this gear shift operating rod; The gear shift sensing device is electrically connected to control device, is used to obtain the operating position of gear shift operating rod and the electric signal of this operating position is sent to control device; Control device is electrically connected to the block selecting motor and the motor of putting into gear, and according to the electric signal that receives from the gear shift sensing device, controls the block selecting motor respectively and the duty of the motor of putting into gear.
Speed-changer synchronizer jack horse test bed shift drive system provided by the invention, owing to adopted the block selecting motor and the power source of motor as gearshift of putting into gear, therefore whole device response speed is fast, gearshift power degree of regulation height, and simple in structure, with low cost.
Description of drawings
Fig. 1 is the theory diagram that is used for speed-changer synchronizer jack horse test bed shift drive system according to of the present invention;
Fig. 2 is the synoptic diagram of a kind of embodiment of expression gearing of the present invention;
Fig. 3 is the synoptic diagram of the embodiment of expression gear shift sensing device of the present invention;
Fig. 4 is the synoptic diagram that expression has the shift drive system of the present invention of reducing gear;
Fig. 5 is the operating position of gear shift operating rod is calculated in expression according to the straight-line displacement of sleeve a illustraton of model.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
As shown in Figure 1, the invention provides a kind of speed-changer synchronizer jack horse test bed shift drive system that is used for, this shift drive system comprises block selecting motor 10, the motor 20 of putting into gear, control device 30, two gearings 40 and gear shift sensing device 50, wherein: a gearing 40 is connected between the output shaft 11 and gear shift operating rod 60 of block selecting motor 10, be used for the rotatablely moving of output shaft 11 of block selecting motor 10 is converted into rectilinear motion, and pass to the gear shift operating rod 60 of variator, to carry out the block selecting operation of this gear shift operating rod 60; Another gearing 40 is connected between the output shaft 21 and gear shift operating rod 60 of the motor 20 of putting into gear, the rotatablely moving of output shaft 21 of motor 20 of being used for putting into gear is converted into rectilinear motion, and pass to the gear shift operating rod 60 of variator, to carry out the operation of putting into gear of this gear shift operating rod 60; Gear shift sensing device 50 is electrically connected to control device 30, is used to obtain the operating position of gear shift operating rod 60 and the electric signal of this operating position is sent to control device 30; Control device 30 is electrically connected to the block selecting motor 10 and the motor 20 of putting into gear, and according to the electric signal that receives from gear shift sensing device 50, controls the duty of the block selecting motor 10 and the motor 20 of putting into gear respectively.
Need to prove at this, in the present invention, term " gearshift " typically refers to the switching between different gears, term " block selecting " typically refers to the switching of carrying out between different selector shaft (each selector shaft can be controlled two corresponding gears), term " is put into gear " to typically refer to and has been hung up gear, so gearshift generally comprises block selecting and puts into gear; Term " connection " typically refers to and transmits the mechanokinetic mechanical type and connect, and term " electrical connection " generally includes to be electrically connected and is connected with signal etc.In addition, (except Fig. 5) in the accompanying drawings, solid line ordinary representation mechanical connection, dotted line ordinary representation are electrically connected, arrow then represent signalling to or the order controlling party to.In addition, in Fig. 2 to Fig. 4, only show a cover drive system, promptly comprise the block selecting drive system of block selecting motor 10.The drive system of putting into gear that comprises the motor 20 of putting into gear can be identical with the block selecting drive system, and promptly motor wherein is all identical with gearing or reducing gear etc., and therefore the purpose in order to simplify has been omitted the diagram to them.In addition, in the present invention, " gearing " mentioned typically refers to the gearing in the block selecting drive system, " another gearing " typically refers to the gearing in the shift drive system, " each gearing " then comprises this two gearings, and other device has identical therewith implication basically as reducing gear, sensor etc.
Gear shift operating rod 60 can use operating rod well known in the prior art.In the prior art, utilize operating rod shift gears (block selecting and put into gear) be well known to those skilled in the art.For example, operating rod generally is connected to driving lever, shifting block, shift fork and declutch shift shaft etc.Make the operating rod teeter when block selecting, the lower end of operating rod promotes driving lever, and the shifting block groove that the driving lever lower end aligned is corresponding with selected gear makes the operating rod longitudinal oscillation then, drives declutch shift shaft and shift fork and moves forward and backward, and can realize gearshift.In the present invention, described gear shift operating rod 60 is realized teeter and longitudinal oscillations by the block selecting motor 10 and the motor 20 of putting into gear respectively, thereby realizes block selecting and put into gear.In existing speed-changer synchronizer jack horse test bed shift drive system, block selecting and put into gear and then realize by cylinder or hydraulic cylinder.
Block selecting motor 10 preferably uses identical motors so that operate and control with the motor 20 of putting into gear, and preferably uses mechanical property DC servo motor preferably.By rotating and reverse of the block selecting motor 10 and the motor 20 of putting into gear, can drive gear shift operating rod 60 horizontal and vertical swings, realize the block selecting and the operation of putting into gear.
As shown in Figure 4, increase the effect of turning round in order to reach to slow down, shift drive system of the present invention can also comprise two reducing gears 70, a reducing gear 70 is connected between the output shaft 11 and a described gearing 40 of block selecting motor 10, another reducing gear 70 is connected between the output shaft 21 and described another gearing 40 of the motor 20 of putting into gear, and turns round the gearing 40 that passes to afterwards separately will increase through slowing down from the power of motor output shaft respectively.As mentioned above, only show a reducing gear 70 among the figure.
Reducing gear 70 can use any suitable structure of the prior art, for example the simplyst can use gear reduction.
The effect of gearing 40 is that the rotatablely moving of output shaft 11,21 from the block selecting motor 10 and the motor 20 of putting into gear is converted into rectilinear motion, and pass to the gear shift operating rod 60 of variator, to carry out the block selecting operation of this gear shift operating rod 60 and the operation of putting into gear respectively, promptly drive gear shift operating rod 60 teeters and longitudinal oscillation, to realize the gear shift operation of variator.
As well known to those skilled in the art, to rotatablely move is converted into rectilinear motion output and can adopts various structures in the mechanical field, for example screw set core structure, cam link formula structure, piston crank type structure (as the principle of work of reverse use engine) or the like.
As a kind of typical embodiment, figure 2 illustrates a kind of gearing 40 of screw set core structure.
As shown in Figure 2, each gearing 40 can comprise leading screw 41, sleeve 42 and drag-line 43.Leading screw 41 is connected with the output shaft 11 of block selecting motor 10 or the output shaft 12 of the motor 20 of putting into gear, and for example connects by shaft coupling.Sleeve 42 thread bushs are connected on the leading screw 41, can make relative rotary motion by screw thread each other.Drag-line 43 is connected between sleeve 42 and the gear shift operating rod 60, is used for the motion from sleeve 42 is delivered to gear shift operating rod 60.Drag-line 43 is known in the prior art, usually structure be in flexible sleeve, pass one can be in flexible sleeve the flexible steel wire of back and forth movement.As mentioned above, this embodiment only is for illustrative purposes, rather than in order to limit the present invention.Any suitable structure that can be converted into rectilinear motion output with rotatablely moving can be applied among the present invention.
In the present invention, gear shift sensing device 50 is electrically connected to control device 30, be used to obtain the operating position of gear shift operating rod 60 and the electric signal of this operating position is sent to control device 30, thereby make the duty of the control device 30 control block selecting motors 10 or the motor 20 of putting into gear.
Particularly, when the variator of test needs block selecting, 10 work of control device 30 control block selecting motors, the power of block selecting motor 10 outputs output shaft 11 by motor and gearing 40 etc. successively are delivered to gear shift operating rod 60, drive gear shift operating rod 60 teeters and realize block selecting.In the swing process of gear shift operating rod 60, gear shift sensing device 50 detects the position of gear shift operating rod 60 in real time, and this position signalling is fed back to control device 30,10 work of control block selecting motor.In case gear shift sensing device 50 detects gear shift operating rod 60 and has chosen gear, then the signal that will believe sends to control device 30, quit work by control device 30 control block selecting motors 10, thereby the block selecting operation is finished, control device 30 is waited for next step operational order, as the operational order of putting into gear (identical with above-mentioned block selecting operating process, as to repeat no more).
This shows, gear shift sensing device 50 can use multiple sensors, and these sensors can be positioned at multiple position, as long as these sensors can be used for detecting or calculating the shift position of gear shift operating rod 60 and this position signalling is sent to control device 30.
As shown in Figure 1, wherein schematically show the output shaft 11 and 12 that gear shift sensing device 50 can optionally be connected to motor, gearing 40 or gear shift operating rod 60.Mode below by embodiment is illustrated respectively these three kinds of situations.But the present invention is not limited to these certain embodiments.
As shown in Figure 3, a kind of embodiment is that described gear shift sensing device 50 can comprise a linear displacement transducer 52 on each sleeve 42 that is arranged in each gearing 40, is used for calculating according to the straight-line displacement of this sleeve 42 operating position of gear shift operating rod 60.The operating position or the displacement of calculating gear shift operating rod 60 according to the straight-line displacement of sleeve 42 are to realize easily.
Fig. 5 is the operating position of gear shift operating rod 60 is calculated in expression according to the straight-line displacement of sleeve 42 a illustraton of model.
As shown in Figure 5, suppose that gear shifting handle BD can carry out the conversion of AD, CD two gears.When gear shifting handle when middle position BD is suspended to gear AD, linear displacement transducer 52 detects shift value m
Survey(equating with the straight-line displacement of sleeve 42), gear shift operating rod 60 moves chord length AB.Utilize spatial model, set up measured value m
SurveyRelation with chord length AB.
Obtain after the calculating:
Utilize angle θ conversion m
SurveyRelation with chord length AB:
Set up measured value m with this
SurveyMove the transformational relation of chord length AB with gear shift operating rod 60 gear shift.In like manner, can set up the transformational relation of the detected value of gear shift operating rod 60 moves on the gear selecting direction actual displacement and linear displacement transducer 52, then can converse the displacement of gearshift fork then according to lever ratio, i.e. the gear shift displacement or the drive range of variator.
Return Fig. 3, described gear shift sensing device 50 can comprise two angular displacement sensors 51, an angular displacement sensor 51 is arranged on the output shaft 11 of block selecting motor 10, is used for calculating according to the angular displacement of this output shaft 11 the block selecting operating position of gear shift operating rod 60; Another angular displacement sensor 51 is arranged on the output shaft 21 of the motor 20 of putting into gear, and is used for calculating according to the angular displacement of this output shaft 21 the gear shift operation position of gear shift operating rod 60.According to the gearing 40 of different structure and size, can be easily between the operating position of the angular displacement of output shaft and gear shift operating rod 60, set up and get in touch.For example, for screw set core structure shown in Figure 2, by the pitch on the leading screw, can be easily between the straight line of the rotation of leading screw and sleeve moves the simultaneous relation, passing through model shown in Figure 4 then, can finally set up getting in touch between the operating position of the angular displacement of motor output shaft and gear shift operating rod 60, this knows to those skilled in the art.
In addition, in order more directly to draw the positional information of gear shift operating rod 60, described gear shift sensing device 50 can comprise the position transducer 53 that is arranged on the gear shift operating rod 60, is used to detect the operating position of gear shift operating rod 60 and the electric signal of this operating position is sent to control device 30.In addition, as required, also position transducer 53 can be arranged on other part that links to each other with gear shift operating rod 60, for example selector fork, shifting block or the like.
Control device 30 can use control device commonly used in the prior art, usually can use the general industrial control computer, mainly comprise mechanism controls module and data acquisition module, the mechanism controls module is used for sending order to control their action to block selecting motor and shift motor, data acquisition module is used to gather data or the signal from the gear shift sensing device, and handles accordingly.
In order to obtain the position signalling of gear shift operating rod 60 at different sensors, the present invention can also use processor or computer system etc. to carry out the corresponding calculated operation, certainly, these processors or computer system also can be integrated into usually in the control device 30 or directly and realize its function by the data acquisition module in the control device, this is to expect easily and realize that the present invention repeats no more to those skilled in the art.
Claims (6)
1. one kind is used for speed-changer synchronizer jack horse test bed shift drive system, it is characterized in that, this shift drive system comprises block selecting motor (10), the motor of putting into gear (20), and control device (30), two gearings (40) and gear shift sensing device (50), wherein:
A gearing (40) is connected between the output shaft (11) and gear shift operating rod (60) of block selecting motor (10), be used for the rotatablely moving of output shaft (11) of block selecting motor (10) is converted into rectilinear motion, and pass to the gear shift operating rod (60) of variator, to carry out the block selecting operation of this gear shift operating rod (60);
Another gearing (40) is connected between the output shaft (21) and gear shift operating rod (60) of the motor of putting into gear (20), the rotatablely moving of output shaft (21) of motor (20) of being used for putting into gear is converted into rectilinear motion, and pass to the gear shift operating rod (60) of variator, to carry out the operation of putting into gear of this gear shift operating rod (60);
Gear shift sensing device (50) is electrically connected to control device (30), is used to obtain the operating position of gear shift operating rod (60) and the electric signal of this operating position is sent to control device (30);
Control device (30) is electrically connected to block selecting motor (10) and the motor of putting into gear (20), and according to the electric signal that receives from gear shift sensing device (50), controls the duty of block selecting motor (10) and the motor of putting into gear (20) respectively.
2. shift drive system according to claim 1, wherein, this shift drive system also comprises two reducing gears (70), a reducing gear (70) is connected between the output shaft (11) and a described gearing (40) of block selecting motor (10), and another reducing gear (70) is connected between the output shaft (21) and described another gearing (40) of the motor of putting into gear (20).
3. shift drive system according to claim 1, wherein, described each gearing (40) comprises leading screw (41), sleeve (42) and drag-line (43), leading screw (41) is connected with the output shaft (12) of the output shaft (11) of block selecting motor (10) or the motor of putting into gear (20), sleeve (42) thread bush is connected on the leading screw (41), and drag-line (43) is connected between sleeve (42) and the gear shift operating rod (60).
4. shift drive system according to claim 3, wherein, described gear shift sensing device (50) comprises a linear displacement transducer (52) that is arranged on each sleeve (42), is used for calculating according to the straight-line displacement of this sleeve (42) operating position of gear shift operating rod (60).
5. according to any described shift drive system among the claim 1-3, wherein, described gear shift sensing device (50) comprises two angular displacement sensors (51), an angular displacement sensor (51) is arranged on the output shaft (11) of block selecting motor (10), is used for calculating according to the angular displacement of this output shaft (11) the block selecting operating position of gear shift operating rod (60); Another angular displacement sensor (51) is arranged on the output shaft (21) of the motor of putting into gear (20), is used for calculating according to the angular displacement of this output shaft (21) the gear shift operation position of gear shift operating rod (60).
6. according to any described shift drive system among the claim 1-3, wherein, described gear shift sensing device (50) comprises the position transducer (53) that is arranged on the gear shift operating rod (60), is used to detect the operating position of gear shift operating rod (60) and the electric signal of this operating position is sent to control device (30).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101703334A CN101210858A (en) | 2006-12-28 | 2006-12-28 | Shift drive system for speed-changer synchronizer jack horse test bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101703334A CN101210858A (en) | 2006-12-28 | 2006-12-28 | Shift drive system for speed-changer synchronizer jack horse test bed |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101620027B (en) * | 2009-01-23 | 2010-12-01 | 长沙高新开发区湖湘测控软件有限公司 | Gear-shifting device of automotive synchronizer test bench |
| CN101566521B (en) * | 2009-04-17 | 2011-05-25 | 苏州工业园区格比机电有限公司 | Performance detection workstation for automotive gear shifter assembly and detection method thereof |
| CN102506641A (en) * | 2011-11-14 | 2012-06-20 | 无锡贺安特动力科技有限公司 | Special detector for synchronizer gear sleeve |
| CN102537310A (en) * | 2012-02-23 | 2012-07-04 | 中国重汽集团大同齿轮有限公司 | Electric servo gear-shifting actuator for AMT (automated mechanical transmission) of heavy truck |
| CN103363100A (en) * | 2013-07-25 | 2013-10-23 | 长城汽车股份有限公司 | Vehicle and automatic gear shifting circuit for vehicle |
| CN103527769A (en) * | 2013-09-24 | 2014-01-22 | 浙江吉利控股集团有限公司 | Synchronizer self-learning identification control method and position verification control method |
| CN103759925A (en) * | 2013-11-12 | 2014-04-30 | 陕西国力信息技术有限公司 | AMT-based gear-selection gear-shift control assembly mechanical structure fatigue test method |
| CN103912682A (en) * | 2014-03-31 | 2014-07-09 | 长城汽车股份有限公司 | Manual gearshift mechanism and gear recognition device |
| CN104458245A (en) * | 2013-09-20 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Position diagnostic test for a shift-by-wire system, and a method thereof |
| CN104819844A (en) * | 2015-05-22 | 2015-08-05 | 无锡城市职业技术学院 | Manual transmission service life test device |
| CN105156661A (en) * | 2015-06-07 | 2015-12-16 | 深圳市沃特玛电池有限公司 | Gearbox of automatic gear shifting electric vehicle |
| CN105527099A (en) * | 2016-01-28 | 2016-04-27 | 奇瑞汽车股份有限公司 | Hand-operated gearbox gearshift performance testing arrangement |
| CN106053099A (en) * | 2016-08-03 | 2016-10-26 | 宁波贤丰汽车零部件有限公司 | Service life testing tool for automobile gearshift structure |
| CN106323643A (en) * | 2016-08-02 | 2017-01-11 | 宁波爱立德汽车部件有限公司 | Gearshift device assembly testing apparatus |
| CN106353090A (en) * | 2016-08-31 | 2017-01-25 | 成都市和平科技有限责任公司 | Intelligent test system and method for automobile synchronizer |
| CN106740856A (en) * | 2017-01-13 | 2017-05-31 | 洁蓝德新能源科技有限公司 | Power motor aids in shifting control system and its control method |
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| CN106907475A (en) * | 2015-12-22 | 2017-06-30 | 中联重机股份有限公司 | Automatically controlled selector and automatically controlled shifting control system |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620027B (en) * | 2009-01-23 | 2010-12-01 | 长沙高新开发区湖湘测控软件有限公司 | Gear-shifting device of automotive synchronizer test bench |
| CN101566521B (en) * | 2009-04-17 | 2011-05-25 | 苏州工业园区格比机电有限公司 | Performance detection workstation for automotive gear shifter assembly and detection method thereof |
| CN102506641A (en) * | 2011-11-14 | 2012-06-20 | 无锡贺安特动力科技有限公司 | Special detector for synchronizer gear sleeve |
| CN102537310A (en) * | 2012-02-23 | 2012-07-04 | 中国重汽集团大同齿轮有限公司 | Electric servo gear-shifting actuator for AMT (automated mechanical transmission) of heavy truck |
| CN102537310B (en) * | 2012-02-23 | 2016-04-06 | 中国重汽集团大同齿轮有限公司 | Heavy-duty car AMT speed changer electrical servo gear shifting operator |
| CN103363100A (en) * | 2013-07-25 | 2013-10-23 | 长城汽车股份有限公司 | Vehicle and automatic gear shifting circuit for vehicle |
| CN104458245A (en) * | 2013-09-20 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Position diagnostic test for a shift-by-wire system, and a method thereof |
| CN103527769B (en) * | 2013-09-24 | 2016-02-24 | 浙江吉利控股集团有限公司 | Synchronizer self study identification controlling method and position verification control method |
| CN103527769A (en) * | 2013-09-24 | 2014-01-22 | 浙江吉利控股集团有限公司 | Synchronizer self-learning identification control method and position verification control method |
| CN103759925A (en) * | 2013-11-12 | 2014-04-30 | 陕西国力信息技术有限公司 | AMT-based gear-selection gear-shift control assembly mechanical structure fatigue test method |
| CN103912682A (en) * | 2014-03-31 | 2014-07-09 | 长城汽车股份有限公司 | Manual gearshift mechanism and gear recognition device |
| CN104819844A (en) * | 2015-05-22 | 2015-08-05 | 无锡城市职业技术学院 | Manual transmission service life test device |
| CN105156661A (en) * | 2015-06-07 | 2015-12-16 | 深圳市沃特玛电池有限公司 | Gearbox of automatic gear shifting electric vehicle |
| CN106907475A (en) * | 2015-12-22 | 2017-06-30 | 中联重机股份有限公司 | Automatically controlled selector and automatically controlled shifting control system |
| CN105527099A (en) * | 2016-01-28 | 2016-04-27 | 奇瑞汽车股份有限公司 | Hand-operated gearbox gearshift performance testing arrangement |
| CN106323643A (en) * | 2016-08-02 | 2017-01-11 | 宁波爱立德汽车部件有限公司 | Gearshift device assembly testing apparatus |
| CN106053099A (en) * | 2016-08-03 | 2016-10-26 | 宁波贤丰汽车零部件有限公司 | Service life testing tool for automobile gearshift structure |
| CN106353090A (en) * | 2016-08-31 | 2017-01-25 | 成都市和平科技有限责任公司 | Intelligent test system and method for automobile synchronizer |
| CN106769007A (en) * | 2016-12-06 | 2017-05-31 | 重庆理工大学 | Speed variator gear shift mechanism performance measurement test method |
| CN106769007B (en) * | 2016-12-06 | 2019-03-26 | 重庆理工大学 | Speed variator gear shift mechanism performance measurement test method |
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| 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 |
| CN108444690A (en) * | 2018-05-25 | 2018-08-24 | 陕西法士特齿轮有限责任公司 | A kind of endurance test rack for AMT shifting operating mechanisms |
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| CN113062979B (en) * | 2021-03-19 | 2022-03-22 | 中国人民解放军陆军装甲兵学院 | Full automatically controlled AMT gearshift |
| CN113418720A (en) * | 2021-06-21 | 2021-09-21 | 哈尔滨东安汽车动力股份有限公司 | Power takeoff bench test device and test method thereof |
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