CN203148675U - Test stand and test system for vehicle integrated transmission system - Google Patents
Test stand and test system for vehicle integrated transmission system Download PDFInfo
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- CN203148675U CN203148675U CN 201320070857 CN201320070857U CN203148675U CN 203148675 U CN203148675 U CN 203148675U CN 201320070857 CN201320070857 CN 201320070857 CN 201320070857 U CN201320070857 U CN 201320070857U CN 203148675 U CN203148675 U CN 203148675U
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Abstract
The utility model relates to a test stand and a test system for a vehicle integrated transmission system. The whole transmission system in the utility model only uses one transfer device to provide two paths of hydraulic power and two paths of machinery power for two apparatuses, a hydraulic machinery buncher and a machinery hydraulic double flow transmission turning apparatus, so as to greatly save correlative power equipment and further substantially simplify the construction of the stand and reduce design difficulty. The utility model has reasonable layout and saves land occupation area. A control system is employed to control the transmission system, and correlative performance parameters of the transmission system are obtained through a sensor, so as to control the test on a real-time basis.
Description
Technical field
The utility model relates to the comprehensive Power Train Test Bench frame of a kind of vehicle and pilot system.
Background technology
Kinematic train is engine-variator-drive axle-driving wheel system, and it is the vehicle important component part.The quality of performance such as vehicle power and fuel economy depends on the vehicle drive system degree of coupling rationally to a great extent.Development along with social economy and technology, people are more and more higher to the requirement of vehicle power, fuel economy, ground adaptability and operation automation level, launched the research to kinematic trains such as hydraulic mechanical stepless gearbox, mechanical-hydraulic double fluid transmission turning devices both at home and abroad.The conventional truck Power Train Test Bench all concentrates on the performance study of or its simple combination single to conventional truck variator, mechanical type steering mechanism, drive axle etc., and automaticity is low, versatility is poor, can't satisfy comprehensive diversity test requirement.
Testing table research at emerging gearings such as hydraulic mechanical stepless gearbox, mechanical-hydraulic double fluid transmission turning devices is in the starting stage.Comprehensive Power Train Test Bench unmanned research still at the new drive device combination has seriously restricted the research of the various performances of the novel integrated transmission system of vehicle, Design and analysis methods and control system.In order to study these characteristics of the novel comprehensive power train of vehicle, set up the comprehensive Power Train Test Bench of a cover vehicle and seem that ten minutes is necessary.
The utility model content
The purpose of this utility model provides the comprehensive Power Train Test Bench frame of a kind of vehicle and pilot system, in order to solve the problem of the comprehensive power train test unit that does not have the new drive device combination now.
For achieving the above object, scheme of the present utility model comprises:
The comprehensive Power Train Test Bench frame of a kind of vehicle comprises in turn engine, master clutch, the transfer gear, the variator installation position that is used for the assembling hydraulic mechanical stepless gearbox that connect, is used for the make-up machinery Hydraulic Double and spreads the steering gear installation position of moving steering gear; Described variator installation position is connected with the first machinery input branch road, first hydraulic pressure input branch road and the first machinery output branch road; Described steering gear installation position connects the second machinery input branch road, second hydraulic pressure input branch road and the second machinery output branch road; Described transfer gear is provided with first output terminal, second output terminal and the 3rd output terminal, first output terminal connects described variator installation position, form the first machinery input branch road of described variator installation position, second output terminal connects first hydraulic pressure input branch road that first variable output pump and first fixed displacement motor form described variator installation position successively, the 3rd output terminal connects second hydraulic pressure input branch road that second variable output pump and second fixed displacement motor form described steering gear installation position successively, and the first machinery output branch road connects described steering gear installation position and forms the second machinery input branch road; The second machinery output branch road of steering gear installation position is connected with raising speed case and loading motor in turn; Between described master clutch and the transfer gear, between transfer gear second output terminal and first variable output pump, between transfer gear the 3rd output terminal and second variable output pump, between first fixed displacement motor and the variator installation position, between second fixed displacement motor and the steering gear installation position, steering gear is positioned between the raising speed case and is equipped with torque rotary speed sensor.
Between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the steering gear installation position.
In the described second machinery output branch road, also be provided with steering gear between raising speed case and the loading motor.
Described steering gear installation position also is provided with the second machinery output branch road and constitutes the 3rd identical machinery output branch road.
The comprehensive power train pilot system of a kind of vehicle, it is characterized in that, comprise the comprehensive Power Train Test Bench frame of vehicle and experimental control device, comprise in turn engine, master clutch, the transfer gear, the variator installation position that is used for the assembling hydraulic mechanical stepless gearbox that connect, be used for the make-up machinery Hydraulic Double and spread the steering gear installation position of moving steering gear; Described variator installation position is connected with the first machinery input branch road, first hydraulic pressure input branch road and the first machinery output branch road; Described steering gear installation position connects the second machinery input branch road, second hydraulic pressure input branch road and the second machinery output branch road; Described transfer gear is provided with first output terminal, second output terminal and the 3rd output terminal, first output terminal connects described variator installation position, form the first machinery input branch road of described variator installation position, second output terminal connects first hydraulic pressure input branch road that first variable output pump and first fixed displacement motor form described variator installation position successively, the 3rd output terminal connects second hydraulic pressure input branch road that second variable output pump and second fixed displacement motor form described steering gear installation position successively, and the first machinery output branch road connects described steering gear installation position and forms the second machinery input branch road; The second machinery output branch road of steering gear installation position is connected with raising speed case and loading motor in turn; Between described master clutch and the transfer gear, between transfer gear second output terminal and first variable output pump, between transfer gear the 3rd output terminal and second variable output pump, between first fixed displacement motor and the variator installation position, between second fixed displacement motor and the steering gear installation position, steering gear is positioned between the raising speed case and is equipped with torque rotary speed sensor; Experimental control device comprises entire car controller and pedestal control system, entire car controller is used for control engine, hydraulic mechanical stepless gearbox, mechanical-hydraulic double fluid transmission turning device, first variable output pump and second variable output pump, the described entire car controller of pedestal control system control linkage, master clutch, transfer gear, raising speed case and loading motor, sampling connects described each torque and speed sensors.
Between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the steering gear installation position.
Described experimental control device also comprises the display unit that is connected with pedestal control system.
In the described second machinery output branch road, also be provided with steering gear between raising speed case and the loading motor.
Described steering gear installation position also is provided with the second machinery output branch road and constitutes the 3rd identical machinery output branch road.
In the whole drive unit of the present utility model, only used a transfer gear just to provide two-way hydraulic power and two-way machine power as hydraulic mechanical stepless gearbox, two devices of mechanical-hydraulic double fluid transmission turning device, saved relevant power-equipment greatly, thereby simplified the structure of stand greatly, reduced design difficulty.And rationally distributed, save floor area.Power train is controlled and obtained the correlated performance parameter of power train by sensor by control system, control test in real time.The utility model can be finished hydraulic mechanical stepless gearbox-comprehensive power train test of mechanical-hydraulic double fluid steering gear new vehicle; Can also carry out the experiment of conventional truck transmission performance, the experiment of Vehicular system hybrid power, power shift drive experiments, belong to initiative at home; Utilize the CAN bus to carry out synthetical collection and the control of many information, realize machinery, hydraulic pressure, computing machine and control multi-specialized integrated automatically; Can realize engine, variator, many stands of steering gear Total tune.
Description of drawings
Fig. 1 is the comprehensive power train pilot system of vehicle schematic diagram;
Fig. 2 is the comprehensive Power Train Test Bench shelf structure of vehicle figure (dot-and-dash line is represented base).
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
Pilot system embodiment
The comprehensive power train pilot system of vehicle as shown in Figure 1 comprises the comprehensive Power Train Test Bench frame of vehicle and experimental control device.
The Power Train Test Bench frame comprises in turn engine, master clutch, the transfer gear, the variator installation position that is used for the assembling hydraulic mechanical stepless gearbox that connect, be used for the make-up machinery Hydraulic Double spreads the steering gear installation position of moving steering gear; The variator installation position is connected with the first machinery input branch road, first hydraulic pressure input branch road and the first machinery output branch road; The steering gear installation position connects the second machinery input branch road, second hydraulic pressure input branch road and the second machinery output branch road; Transfer gear is provided with first output terminal, second output terminal and the 3rd output terminal, first output terminal connects the variator installation position, form the first machinery input branch road of variator installation position, second output terminal connects first hydraulic pressure input branch road of first variable output pump and first fixed displacement motor formation variator installation position successively, the 3rd output terminal connects second hydraulic pressure input branch road of second variable output pump and second fixed displacement motor formation steering gear installation position successively, and the first machinery output branch road connects the steering gear installation position formation second machinery input branch road; The second machinery output branch road of steering gear installation position is connected with raising speed case and loading motor in turn; Between master clutch and the transfer gear, between transfer gear second output terminal and first variable output pump, between transfer gear the 3rd output terminal and second variable output pump, between first fixed displacement motor and the variator installation position, between second fixed displacement motor and the steering gear installation position, steering gear is positioned between the raising speed case and is equipped with torque rotary speed sensor.
Experimental control device comprises entire car controller and pedestal control system, entire car controller is used for control engine, hydraulic mechanical stepless gearbox, mechanical-hydraulic double fluid transmission turning device, first variable output pump and second variable output pump, pedestal control system control linkage entire car controller, master clutch, transfer gear, raising speed case and loading motor.
Pedestal control system is the related data of each parts of testing table such as each torque and speed sensors of the company of sampling also.As a kind of embodiment, for direct viewing test process, can increase display device, be used for showing the intermediate result of gathering etc.
Between master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the steering gear installation position.Experimental control device also comprises the display unit that is connected with pedestal control system.The steering gear installation position also is provided with the second machinery output branch road and constitutes the 3rd identical machinery output branch road.For the ease of layout, in second, third machinery output branch road, also be provided with steering gear between raising speed case and the loading motor.
The concrete steps of test are as follows.
Engine is prepared: engine is installed, cold air thermostatic control system in throttle actuator, the engine, clutch operating device assembly, engine motor oil thermostatic control system, engine water temperature thermostatic control system, engine exhaust system, fuel oil supply system, cooling water system, engine wiring harness etc. are set.
Hydraulic mechanical stepless gearbox is prepared: hydraulic mechanical stepless gearbox, gearbox controller, the three-dimensional adjustable support of variator are installed; Variator variable output pump-fixed displacement motor system, transmission pressure station, hydraulic plumbing system, variator wire harness are set.
Mechanical-hydraulic double fluid transmission turning device is prepared: mechanical Hydraulic Double is installed spreads moving steering gear, steering gear controller, steering gear integral support; Steering variable pump-fixed displacement motor system, steering gear Hydraulic Station, hydraulic plumbing system, steering gear wire harness are set.
Transmission shaft and joint flange are prepared: arrange engine, transfer case, hydraulic mechanical stepless gearbox, loading motor, torque rotary speed sensor, torque protective device etc. are installed.
Loading motor is prepared: loading motor, loading motor support are installed; Cooling system, loading motor wire harness are set.
Install, debug: as Fig. 2, engine 2, transfer case 11, hydraulic mechanical stepless gearbox 13, loading motor 30 etc. are installed on the three-dimensional adjustable support 1; Throttle actuator 4, clutch operating device assembly 5 etc. are connected with engine 2; Engine with universal drive shaft 6 be installed in the transfer case 11 that transfer case props up seat assembly 31 and be connected; Engine output power is divided into three the tunnel: the one tunnel through transmission shaft auxiliary support apparatus assembly 39 through transfer case 11, first torque limiter 37, first torque rotary speed sensor 35, first shaft coupling 32, universal drive shaft 12 flows into hydraulic mechanical stepless gearbox 13 mechanical input ends, another road second shaft coupling 10, second torque rotary speed sensor 9, the 3rd shaft coupling 8, variator variable output pump 7, fixed displacement motor 44, tetrad axial organ 43, the 3rd torque rotary speed sensor 42,5-linked axial organ 41, accurate universal the 6th shaft coupling 40 enters hydraulic mechanical stepless gearbox 13 hydraulic pressure input ends and first via coupling enters mechanical-hydraulic double fluid transmission turning device 20 mechanical input ends through first torque limiter 14, and Third Road is through the 7th shaft coupling 33, the 4th torque rotary speed sensor 34, the 8th shaft coupling 36, steering variable pump 38, fixed displacement motor 15, the 9th shaft coupling 16, the 5th torque rotary speed sensor 17, the tenth shaft coupling 18, accurate universal the 11 shaft coupling 19 enters mechanical-hydraulic double fluid transmission turning device 20 hydraulic pressure input ends; Coupling power is by the output shaft output of two ends, mechanical-hydraulic double fluid transmission turning device 20 left and right sides; All through the 12 shaft coupling 21, the 6th torque rotary speed sensor 22, first torque limiter 23, raising speed case 24, be connected with two loading motors 30 through the 13 shaft coupling 25, first steering gear 26, the tenth tetrad axial organ 27, second steering gear 28, the tenth 5-linked axial organ 29.
Adjust the three-dimensional adjustable support height of engine 2, transfer gear 11, hydraulic mechanical stepless gearbox 13, mechanical-hydraulic double fluid transmission turning device 20, raising speed case 24, steering gear 26, loading motor 28, the 7th torque rotary speed sensor 9,17,22,34,35,42, torque protective device 14, parts such as 37, the center line height is consistent; Each controller unit is installed, is arranged engine and controller wire harness, set up the CAN network, connect whole display device; Debugging hydraulic mechanical stepless gearbox-comprehensive Power Train Test Bench the communication of mechanical-hydraulic double fluid steering gear vehicle.
Pilot system of the present utility model can be finished hydraulic mechanical stepless gearbox-comprehensive power train test of mechanical-hydraulic double fluid steering gear new vehicle; Can also carry out the experiment of conventional truck transmission performance, the experiment of Vehicular system hybrid power, power shift drive experiments, belong to initiative at home; Utilize the CAN bus to carry out synthetical collection and the control of many information, realize machinery, hydraulic pressure, computing machine and control multi-specialized integrated automatically; Can realize engine, variator, many stands of steering gear Total tune.
Vehicle hydraulic mechanical stepless transmission stand The whole control system is made up of entire car controller, display unit and pedestal control system.Whole-control system is controlled the work of car load parts respectively by two ECU, is respectively ECU1 control engine; ECU2 control hydraulic mechanical stepless gearbox and variable output pump-fixed displacement motor system thereof; Pedestal control system is except each automobile component of coordinating the control vehicle control unit controls, control each parts of whole test platform simultaneously, comprise all torque rotary speed sensors, torque limiter, transfer gear, raising speed case and loading motor etc., various data, state and intermediate result etc. in simultaneously also can each component test of back-to-back testing platform.Display unit is used for showing control situation, ruuning situation, experimentation and the experimental result etc. of whole all parts of stand.The whole control system is formed the CAN network, and the stand all functions all realize control by the CAN network.
Engine provides necessary power source for pilot system; Dynamometer machine be used for to absorb the power that engine transmits through power train, the working environment of simulating tested power train, and power absorbed is converted to electric energy feeds back to electrical network; Torque limiter combines each mechanical part of test-bed, forms the integral body with certain function, plays the limit torsion effect simultaneously; The realization of raising speed case is fallen the raising speed of the final transmission of power train and is turned round, and makes the input end torque rotary speed of dynamometer machine and dynamometer machine torque characteristics be complementary; The turning device makes the more symmetrical compactness of whole test platform, reduces experiment porch and takes up an area of the space; The auxiliary back-up system in laboratory provides necessary working environment for various mechanical components.
Experimental control device mainly is made up of hardware devices such as industrial control computer (host computer), PLC programmable controller (slave computer), data acquisition board, various kinds of sensors, control desk, instrument cabinet, testing table onsite alarming surveillance equipment and TT﹠C software, can realize the whole test platform is carried out centralized control, to test parameters monitor, gather, show, record, analysis and chart printout, and process of the test monitored and record.The data that experimental control device can be gathered comprise rotating speed, torque, pressure, flow, temperature, engine throttle opening etc.
Select for use engine as the power source of testing table, make by the test situation of test specimen and real vehicle behaviour in service the most approaching as far as possible.The throttle position that the engine throttle actuator is set according to main control computer is regulated accelerator open degree automatically, stablizes engine speed.Load simulating device adopts direct current generator as loader, direct current generator has two, be used for simulating endless-track vehicle work road conditions load resistance, cooperate the rectification feedback unit, the dynamometer system that constitutes has two kinds of operational modes, both may operate at generating state, also may operate at motoring condition, process is changed automatically, and feedback meets the electric energy of electrical network feedback quality requirements fully.Simultaneously, utilize special control system to realize that the transmission of simulating vehicle power drive system power changes, thereby improve the requirement of kinematic train test capability, the expansion scope of application.
Under the control of main control computer, direct current generator may operate in different mode of operations:
(1) permanent torque mode.Motor under this pattern is under the adjusting of control system, and set-point and the measured value of torque compare, and relatively the difference after is regulated through PID, automatically adjust its armature supply by given control mode, change the output torque of dynamometer machine, make it not change with change in rotational speed, maintain set-point.This pattern is the basic model of this pilot system operation.
(2) permanent rotating speed pattern.The loading rotating speed of control system control direct current generator, the value of being set compares with measured value, and relatively the difference after is regulated through PID, and by given control mode self-regulation motor armature supply, the rotating speed that changes dynamometer machine makes it maintain set-point.Under this pattern, namely can carry out the match test of power train and engine, can carry out the performance test test to engine separately again.
(3) permanent power mode.Control system makes the loading power (product of rotating speed and torque) of direct current generator maintain set-point.Can be used for the simulating vehicle operating mode of giving it the gun under this pattern.
The data information transfer of pilot system adopts CAN bus communication technology, makes the data transmission of host computer and slave computer convenient, quick, reliable.Adopt this patent not only can carry out the individual event testing experiment of power train for vehicle performance and efficient, but also can carry out the mixed performance test experiments of power train for vehicle, simultaneously can also omnidistance steering procedure of simulating endless-track vehicle; Can realize dynamic load by control program, the state of cyclic operation of simulation complete machine actual condition or regulation; Control system can arrange different closed loop control modes with rotating speed, the torque of dynamometer machine to engine according to different test methods, can satisfy every content of the test and the pilot project stipulated in the vehicle driveline correlation test standard fully; According to actual requirement, as long as operating personnel press different control model buttons, the switching of various control modes does not have disturbance fully in the process of the test; Each test volume and analysis result in the test can show in real time, handle, store and print.Compare with the real train test of transmission in the past, adopt the various types of vehicles power drive system of carrying out that this testing table can be simple and efficient to test, save a large amount of experimental period and funds, be applicable to every performance test of vehicle transmission gear.
Test-bed embodiment
Test-bed by the agency of in pilot system embodiment does not repeat them here.
Claims (9)
1. comprehensive Power Train Test Bench frame of vehicle, it is characterized in that, comprise in turn engine, master clutch, the transfer gear, the variator installation position that is used for the assembling hydraulic mechanical stepless gearbox that connect, be used for the make-up machinery Hydraulic Double and spread the steering gear installation position of moving steering gear; Described variator installation position is connected with the first machinery input branch road, first hydraulic pressure input branch road and the first machinery output branch road; Described steering gear installation position connects the second machinery input branch road, second hydraulic pressure input branch road and the second machinery output branch road; Described transfer gear is provided with first output terminal, second output terminal and the 3rd output terminal, first output terminal connects described variator installation position, form the first machinery input branch road of described variator installation position, second output terminal connects first hydraulic pressure input branch road that first variable output pump and first fixed displacement motor form described variator installation position successively, the 3rd output terminal connects second hydraulic pressure input branch road that second variable output pump and second fixed displacement motor form described steering gear installation position successively, and the first machinery output branch road connects described steering gear installation position and forms the second machinery input branch road; The second machinery output branch road of steering gear installation position is connected with raising speed case and loading motor in turn; Between described master clutch and the transfer gear, between transfer gear second output terminal and first variable output pump, between transfer gear the 3rd output terminal and second variable output pump, between first fixed displacement motor and the variator installation position, between second fixed displacement motor and the steering gear installation position, steering gear is positioned between the raising speed case and is equipped with torque rotary speed sensor.
2. the comprehensive Power Train Test Bench frame of a kind of vehicle according to claim 1 is characterized in that, between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the steering gear installation position.
3. the comprehensive Power Train Test Bench frame of a kind of vehicle according to claim 1 is characterized in that, in the described second machinery output branch road, also is provided with steering gear between raising speed case and the loading motor.
4. the comprehensive Power Train Test Bench frame of a kind of vehicle according to claim 3 is characterized in that, described steering gear installation position also is provided with the second machinery output branch road and constitutes the 3rd identical machinery output branch road.
5. comprehensive power train pilot system of vehicle, it is characterized in that, comprise the comprehensive Power Train Test Bench frame of vehicle and experimental control device, comprise in turn engine, master clutch, the transfer gear, the variator installation position that is used for the assembling hydraulic mechanical stepless gearbox that connect, be used for the make-up machinery Hydraulic Double and spread the steering gear installation position of moving steering gear; Described variator installation position is connected with the first machinery input branch road, first hydraulic pressure input branch road and the first machinery output branch road; Described steering gear installation position connects the second machinery input branch road, second hydraulic pressure input branch road and the second machinery output branch road; Described transfer gear is provided with first output terminal, second output terminal and the 3rd output terminal, first output terminal connects described variator installation position, form the first machinery input branch road of described variator installation position, second output terminal connects first hydraulic pressure input branch road that first variable output pump and first fixed displacement motor form described variator installation position successively, the 3rd output terminal connects second hydraulic pressure input branch road that second variable output pump and second fixed displacement motor form described steering gear installation position successively, and the first machinery output branch road connects described steering gear installation position and forms the second machinery input branch road; The second machinery output branch road of steering gear installation position is connected with raising speed case and loading motor in turn; Between described master clutch and the transfer gear, between transfer gear second output terminal and first variable output pump, between transfer gear the 3rd output terminal and second variable output pump, between first fixed displacement motor and the variator installation position, between second fixed displacement motor and the steering gear installation position, steering gear is positioned between the raising speed case and is equipped with torque rotary speed sensor;
Experimental control device comprises entire car controller and pedestal control system, entire car controller is used for control engine, hydraulic mechanical stepless gearbox, mechanical-hydraulic double fluid transmission turning device, first variable output pump and second variable output pump, the described entire car controller of pedestal control system control linkage, master clutch, transfer gear, raising speed case and loading motor, sampling connects described each torque and speed sensors.
6. the comprehensive power train pilot system of a kind of vehicle according to claim 5 is characterized in that, between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the steering gear installation position.
7. the comprehensive power train pilot system of a kind of vehicle according to claim 5 is characterized in that described experimental control device also comprises the display unit that is connected with pedestal control system.
8. the comprehensive power train pilot system of a kind of vehicle according to claim 5 is characterized in that, in the described second machinery output branch road, also is provided with steering gear between raising speed case and the loading motor.
9. the comprehensive power train pilot system of a kind of vehicle according to claim 8 is characterized in that, described steering gear installation position also is provided with the second machinery output branch road and constitutes the 3rd identical machinery output branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070857 CN203148675U (en) | 2013-02-06 | 2013-02-06 | Test stand and test system for vehicle integrated transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070857 CN203148675U (en) | 2013-02-06 | 2013-02-06 | Test stand and test system for vehicle integrated transmission system |
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| Publication Number | Publication Date |
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| CN203148675U true CN203148675U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320070857 Withdrawn - After Issue CN203148675U (en) | 2013-02-06 | 2013-02-06 | Test stand and test system for vehicle integrated transmission system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134678A (en) * | 2013-02-06 | 2013-06-05 | 河南科技大学 | Vehicle comprehensive transmission system test table frame and test system |
| CN104196827A (en) * | 2014-08-18 | 2014-12-10 | 江苏大学 | Efficiency test bed of electric-hydraulic proportional pump control motor system |
| CN108195582A (en) * | 2018-03-31 | 2018-06-22 | 西北农林科技大学 | A kind of hydrostatic drive crawler tractor transmission system performance is test bed |
| WO2020155557A1 (en) * | 2019-01-31 | 2020-08-06 | 山东科技大学 | Electric loading multifunctional test bench for power-dividing hydraulic-mechanical composite transmission system and application thereof |
| CN112857828A (en) * | 2021-01-14 | 2021-05-28 | 北京理工大学 | Dual-independent vehicle transmission measurement and control system |
| RU209905U1 (en) * | 2021-11-08 | 2022-03-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Волгоградский государственный технический университет» (ВолгГТУ) | Stand for testing transmissions of tracked vehicles |
-
2013
- 2013-02-06 CN CN 201320070857 patent/CN203148675U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134678A (en) * | 2013-02-06 | 2013-06-05 | 河南科技大学 | Vehicle comprehensive transmission system test table frame and test system |
| CN103134678B (en) * | 2013-02-06 | 2016-02-10 | 河南科技大学 | A kind of vehicle Mechanical Synthetic Transmission test-bed and pilot system |
| CN104196827A (en) * | 2014-08-18 | 2014-12-10 | 江苏大学 | Efficiency test bed of electric-hydraulic proportional pump control motor system |
| CN108195582A (en) * | 2018-03-31 | 2018-06-22 | 西北农林科技大学 | A kind of hydrostatic drive crawler tractor transmission system performance is test bed |
| WO2020155557A1 (en) * | 2019-01-31 | 2020-08-06 | 山东科技大学 | Electric loading multifunctional test bench for power-dividing hydraulic-mechanical composite transmission system and application thereof |
| CN112857828A (en) * | 2021-01-14 | 2021-05-28 | 北京理工大学 | Dual-independent vehicle transmission measurement and control system |
| RU209905U1 (en) * | 2021-11-08 | 2022-03-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Волгоградский государственный технический университет» (ВолгГТУ) | Stand for testing transmissions of tracked vehicles |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20160210 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |