CN101846585A - Test method of automobile transmission system efficiency - Google Patents

Test method of automobile transmission system efficiency Download PDF

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Publication number
CN101846585A
CN101846585A CN 201010179743 CN201010179743A CN101846585A CN 101846585 A CN101846585 A CN 101846585A CN 201010179743 CN201010179743 CN 201010179743 CN 201010179743 A CN201010179743 A CN 201010179743A CN 101846585 A CN101846585 A CN 101846585A
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CN
China
Prior art keywords
speed
semiaxis
torque
transmission system
rotating speed
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Pending
Application number
CN 201010179743
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Chinese (zh)
Inventor
陈明庆
代永黎
沈明均
冯刚
刘小根
郭明媛
胡明辉
孙冬野
胡建军
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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Publication date
Application filed by Chongqing Changan Automobile Co Ltd filed Critical Chongqing Changan Automobile Co Ltd
Priority to CN 201010179743 priority Critical patent/CN101846585A/en
Publication of CN101846585A publication Critical patent/CN101846585A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a test method of automobile transmission system efficiency, which comprises the following steps: a variable frequency and variable speed motor is connected with an automobile transmission system through a revolution speed and torque sensor; two eddy current dynamometers are respectively connected with two half shafts of the automobile transmission system through the revolution speed and torque sensor; a speed variator of the automobile transmission system is positioned at a certain shift; the target rotation speed of the two half shafts under the rotation speed of a certain variable frequency and variable speed motor is determined according to the transmission ratio; the variable frequency and variable speed motor is started, the eddy current dynamometers load the two half shafts respectively so that the two half shafts can reach the target rotation speed, and then the product of the sum of the torque of the two half shafts and the rotation speed of the half shafts is the output power of the automobile transmission system; and the output power and the product of the torque and the rotation speed of the variable frequency and variable speed motor are compared to obtain the transmission efficiency of the automobile transmission system. The test method is simple, and has quick dynamic response and high testing precision.

Description

Test method of automobile transmission system efficiency
Technical field
The present invention relates to the measuring technology of vehicle drive system, be specifically related to a kind of method of testing of automobile transmission system efficiency.
Background technology
Car transmissions are the actuating units between motor car engine and drive wheels, and its basic training usefulness is to give drive wheels with the transmission of power of engine output.Car transmissions mainly comprise parts such as clutch coupling, variator, main reducing gear, differential mechanism and semiaxis, this system need with the engine collaborative work, with assurance the automobile necessary driving force of cruising and speed of a motor vehicle under various driving conditions, and make automobile have good dynamic property and fuel economy.The height of car transmissions transmission efficiency can reflect the combination property of car transmissions, comprises its design level and manufacture level etc., but also can reflect the size of the power loss of car transmissions inside.Be embodied in the degree of heat of gearing self, its the degree of heat is crossed conference makes lubricating oil rotten too early, cause lubricating condition to worsen, under the bad situation of radiating condition, also might make drive disk assembly local overheatings such as clutch coupling, bearing and gear, forfeiture certain applications function.Therefore just need a kind of effective method of testing that the efficient of car transmissions is tested, compare by the contrast of car transmissions transmission efficiency test value and empirical value or with the transmission efficiency that contrasts vehicle, thereby discovery reason, improve, no matter be to new product development, still existing parts are upgraded, all have considerable effect.
Summary of the invention
The purpose of this invention is to provide a kind of test method of automobile transmission system efficiency, can reliably test the transmission efficiency of car transmissions.
Test method of automobile transmission system efficiency of the present invention, be that frequency-conversion and speed-regulation motor is connected with car transmissions by torque and speed sensors, power source as car transmissions, two electric eddy current dynamometers are connected with two semiaxis of car transmissions respectively by torque and speed sensors, the variator of car transmissions is placed a certain gear, determine the rotating speed of target of two semiaxis under a certain frequency-conversion and speed-regulation motor rotating speed according to ratio of gear, start frequency-conversion and speed-regulation motor, utilize electric eddy current dynamometer that semiaxis is wherein loaded, another root semiaxis rotating speed is raise, utilize another electric eddy current dynamometer that the semiaxis that this rotating speed raises is loaded again, make two semiaxis reach rotating speed of target, then this moment two semiaxis responding to of torque and speed sensors torque sum and the product of the semiaxis rotating speed output power that is these car transmissions, the torque of the frequency-conversion and speed-regulation motor that this output power and torque and speed sensors are responded to is compared with the product of rotating speed, promptly gets the transmission efficiency of these car transmissions.
In this method of testing, three torque and speed sensorses and two electric eddy current dynamometers have been adopted, three torque and speed sensorses are used for measuring torque, the rotating speed of frequency-conversion and speed-regulation motor and two semiaxis respectively, and two electric eddy current dynamometers are used for respectively two semiaxis are implemented to load.
Method of testing of the present invention has been utilized the differential principle, load respectively in the differential mechanism both sides, making the differential mechanism output speed reach rotating speed of target is that two semiaxis are in the indifferential state, rotating speed, torque according to the differential mechanism output terminal (two semiaxis) that writes down this moment, can obtain the output power of car transmissions, adopt output power and power input directly to contrast at last and obtain the transmission efficiency of these car transmissions under a certain rotating speed of a certain gear.This method of testing is simple, and dynamic response is fast, the measuring accuracy height.
Description of drawings
Now in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is the annexation schematic block diagram of car transmissions and proving installation in the test method of automobile transmission system efficiency of the present invention.
Embodiment
As shown in Figure 1, car transmissions mainly are made up of clutch coupling 3, variator 4, main reducing gear 5, differential mechanism 6 and two semiaxis 7,10, frequency-conversion and speed-regulation motor 1 is connected with clutch coupling 3 in the car transmissions by torque and speed sensors 2, power source as car transmissions, the torque and speed sensors 2 that is connected with frequency-conversion and speed-regulation motor 1 is used to measure input speed, the torque of kinematic train, the i.e. power input of kinematic train.Two electric eddy current dynamometers 9,12 are connected with two semiaxis 7,10 of car transmissions differential mechanism 6 sides respectively by torque and speed sensors 8,11, electric eddy current dynamometer 9,12 is used for semiaxis 7,10 is loaded, the torque and speed sensors 8,11 that is connected with semiaxis 7,10 be used to measure kinematic train output speed, torque, be the output power of kinematic train.
During test, variator 4 with car transmissions places a certain gear earlier, ratio of gear according to variator 4 kinematic train when this gear, determine two semiaxis 7 under a certain frequency-conversion and speed-regulation motor rotating speed, 10 rotating speed of target, start frequency-conversion and speed-regulation motor 1, utilize 9 pairs of electric eddy current dynamometers wherein a semiaxis 7 load, these semiaxis 7 speed are reduced, according to the differential principle, then another root semiaxis 10 rotating speeds will raise, the semiaxis 10 that utilizes 12 pairs of these rotating speeds of another electric eddy current dynamometer to raise again loads, make two semiaxis 7,10 reach rotating speed of target, i.e. two semiaxis 7,10 are in the indifferential state, at this moment, torque and speed sensors 8,11 two semiaxis 7 being responded to, 10 the torque sum and the product of semiaxis rotating speed are the output power of these car transmissions, and the torque of the frequency-conversion and speed-regulation motor 1 that this output power and torque and speed sensors 2 are responded to is compared with the product (being the power input of kinematic train) of rotating speed, promptly gets the transmission efficiency of these car transmissions.

Claims (1)

1. test method of automobile transmission system efficiency, it is characterized in that: frequency-conversion and speed-regulation motor (1) is connected with car transmissions by torque and speed sensors (2), power source as car transmissions, with two electric eddy current dynamometers (9,12) by torque and speed sensors (8,11) respectively with two semiaxis (7 of car transmissions, 10) connect, the variator (4) of car transmissions is placed a certain gear, determine the rotating speed of target of two semiaxis under a certain frequency-conversion and speed-regulation motor rotating speed according to ratio of gear, start frequency-conversion and speed-regulation motor, utilize electric eddy current dynamometer (9) that a semiaxis (7) is wherein loaded, another root semiaxis (10) rotating speed is raise, utilize another electric eddy current dynamometer (12) that the semiaxis (10) that this rotating speed raises is loaded again, make two semiaxis reach rotating speed of target, then this moment torque and speed sensors (8, the torque sum of two semiaxis 11) being responded to and the product of semiaxis rotating speed are the output power of these car transmissions, the torque of the frequency-conversion and speed-regulation motor (1) that this output power and torque and speed sensors (2) are responded to is compared with the product of rotating speed, promptly gets the transmission efficiency of these car transmissions.
CN 201010179743 2010-05-21 2010-05-21 Test method of automobile transmission system efficiency Pending CN101846585A (en)

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CN 201010179743 CN101846585A (en) 2010-05-21 2010-05-21 Test method of automobile transmission system efficiency

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102169056A (en) * 2011-01-05 2011-08-31 扬州电力设备修造厂 A loading method for an electric actuator testboard
CN102692289A (en) * 2012-06-25 2012-09-26 安徽安凯汽车股份有限公司 Test system and method for measuring efficiency of electric driving system of novel-energy automobile
CN102706557A (en) * 2012-06-06 2012-10-03 西北工业大学 Multifunctional gear transmission testboard
CN102889989A (en) * 2012-10-08 2013-01-23 重庆理工大学 Test method for measuring dynamic transmission efficiency of dry clutch control system
CN102980768A (en) * 2012-12-24 2013-03-20 重庆理工大学 Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch
CN103245503A (en) * 2013-05-21 2013-08-14 株洲中达特科电子科技有限公司 Automatic transmission performance testing system
CN103323255A (en) * 2013-05-27 2013-09-25 河南科技大学 Tractor unit operation matching test bed
CN103439599A (en) * 2013-08-07 2013-12-11 扬州亚星客车股份有限公司 Electric vehicle real-time measurement system
CN103487096A (en) * 2013-09-10 2014-01-01 温州大学 Detection method of small flow based on gray correlation method
CN103487186A (en) * 2013-09-10 2014-01-01 温州大学 Variable frequency water supply system operating efficiency on-line detection method based on grey correlation method
CN103487187A (en) * 2013-09-10 2014-01-01 温州大学 Online detecting method for operation efficiency of variable frequency water supply system based on inverse solution method
CN103528815A (en) * 2013-10-10 2014-01-22 潍柴动力股份有限公司 Drive axle testing method and system
CN103776627A (en) * 2012-10-26 2014-05-07 江苏骏马压路机械有限公司 Road pressing machinery power transmission system simulation matching test device
CN103852261A (en) * 2012-12-07 2014-06-11 上汽通用五菱汽车股份有限公司 Method for testing transmission efficiency of automobile transmission system
CN103852254A (en) * 2012-12-07 2014-06-11 上汽通用五菱汽车股份有限公司 Method for testing static torsion strength of automotive transmission system
CN104006960A (en) * 2013-02-27 2014-08-27 中机生产力促进中心 Gearbox gear contact spot semiaxis loading transmission apparatus
CN104089773A (en) * 2014-07-23 2014-10-08 江苏大学 Device and method for testing efficiency of transmission system of hose-reeling irrigation machine
CN104089771A (en) * 2014-07-07 2014-10-08 武汉理工大学 Transmission efficiency testing method of micro car transmission shaft
CN104155039A (en) * 2014-07-05 2014-11-19 南通长江电器实业有限公司 Testing method for measuring efficiency of electric drive system of new energy automobile
CN105222939A (en) * 2015-11-02 2016-01-06 盐城工学院 A kind of gear stirs oily power attenuation measurement mechanism
CN105222938A (en) * 2015-11-02 2016-01-06 盐城工学院 A kind of variable number of teeth gear stirs oily power attenuation measurement mechanism and method thereof
CN107478427A (en) * 2016-12-21 2017-12-15 宝沃汽车（中国）有限公司 Car transmissions transmission efficiency method of testing
CN109297707A (en) * 2018-10-25 2019-02-01 安徽江淮汽车集团股份有限公司 A method of carrying out driven by clutches efficiency test on vehicle
CN109946005A (en) * 2017-12-20 2019-06-28 宝沃汽车（中国）有限公司 The methods, devices and systems of power detection
CN110411632A (en) * 2018-04-28 2019-11-05 财团法人金属工业研究发展中心 The characteristic analysis system of rotating device
CN110793690A (en) * 2019-11-17 2020-02-14 无锡明恒混合动力技术有限公司 Method for testing motor efficiency on hybrid power assembly rack
CN111044189A (en) * 2019-12-24 2020-04-21 中国第一汽车股份有限公司 Testing device and testing method for transmission efficiency of plug-in hybrid power transmission
CN112284588A (en) * 2020-12-25 2021-01-29 北京新能源汽车股份有限公司 Test method and device for measuring vehicle efficiency value and vehicle

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CN101303272A (en) * 2008-04-29 2008-11-12 重庆大学 Hybrid power automobile performance test simulation operation apparatus
CN101660972A (en) * 2009-06-26 2010-03-03 重庆长安汽车股份有限公司 Hybrid power assembly performance matching test bench

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CN102169056B (en) * 2011-01-05 2013-01-02 扬州电力设备修造厂 A loading method for an electric actuator testboard
CN102169056A (en) * 2011-01-05 2011-08-31 扬州电力设备修造厂 A loading method for an electric actuator testboard
CN102706557A (en) * 2012-06-06 2012-10-03 西北工业大学 Multifunctional gear transmission testboard
CN102692289B (en) * 2012-06-25 2014-03-19 安徽安凯汽车股份有限公司 Test method for measuring efficiency of electric driving system of novel-energy automobile
CN102692289A (en) * 2012-06-25 2012-09-26 安徽安凯汽车股份有限公司 Test system and method for measuring efficiency of electric driving system of novel-energy automobile
CN102889989A (en) * 2012-10-08 2013-01-23 重庆理工大学 Test method for measuring dynamic transmission efficiency of dry clutch control system
CN103776627A (en) * 2012-10-26 2014-05-07 江苏骏马压路机械有限公司 Road pressing machinery power transmission system simulation matching test device
CN103852254A (en) * 2012-12-07 2014-06-11 上汽通用五菱汽车股份有限公司 Method for testing static torsion strength of automotive transmission system
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CN102980768A (en) * 2012-12-24 2013-03-20 重庆理工大学 Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch
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CN103487186A (en) * 2013-09-10 2014-01-01 温州大学 Variable frequency water supply system operating efficiency on-line detection method based on grey correlation method
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CN105222939B (en) * 2015-11-02 2018-06-01 盐城工学院 A kind of gear stirs oily power attenuation measuring device
CN107478427A (en) * 2016-12-21 2017-12-15 宝沃汽车（中国）有限公司 Car transmissions transmission efficiency method of testing
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CN112284588A (en) * 2020-12-25 2021-01-29 北京新能源汽车股份有限公司 Test method and device for measuring vehicle efficiency value and vehicle

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