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An automobile power and transmission system performance test bench

A test bench and transmission system technology, which is applied in the field of automotive power and transmission system performance test benches and test benches, can solve the problems that the braking system cannot be integrated, and the tire meshing characteristics cannot be simulated, so as to facilitate large-scale promotion The application and system dynamic characteristics are accurate and the design is reasonable

Active Publication Date: 2018-01-02
常州常智汽车部件科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution solves the defects of the traditional automobile transmission system bench electric inertia simulation uncertainty, the inability to integrate the braking system, and the inability to simulate the meshing characteristics of the tires; the input torque sensor is installed between the power source and the input end of the measured object. The double-output axle shaft and wheels of the object under test are reserved. The front wheels are respectively engaged with the two large flywheels of the flywheel system through the pre-compression force and transmit power, and the rear-end wheels are converging the power to the rear through the pre-compression force of the flywheel. Differential at the output end, the torque sensor at the output end is installed between the rear axle and the load dynamometer

Method used

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  • An automobile power and transmission system performance test bench
  • An automobile power and transmission system performance test bench
  • An automobile power and transmission system performance test bench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: see figure 1 , a vehicle power and transmission system performance test bench, the test bench includes a power source 1, an input end torque sensor 2, a measured object 3, a drive end half shaft 10, a front wheel 4, a flywheel system 5, a rear end Wheel 6, output end torque sensor 8 and load dynamometer 9, the input end torque sensor 2 is arranged between the power source 1 and the measured object 3, one side of the flywheel system is provided with the front wheel 4, the described The other side of the flywheel system is provided with a rear wheel 6, and the load dynamometer 9 is connected to the rear wheel through an output torque sensor 8. The power source 1 is an engine or a drive dynamometer, and the measured object 3 is a transmission or a hybrid power system. In this technical solution, the drive dynamometer is connected to the input end torque sensor 2 through a flange, and the input end torque sensor 2. Connect to the input end of the tested objec...

Embodiment 2

[0017] Example 2: see figure 2 , as an improvement of the present invention, the test bench also includes a coupling 12, and the coupling 12 is arranged between the output end torque sensor 8 and the load dynamometer; the power source 1 is the driving dynamometer The torque sensor 2 at the input end is connected through the flange, and the torque sensor 2 at the input end is connected with the input end of the measured object 3 through the flange. The measured object 3 is installed on the support fixed on the iron floor. The shaft 10 and the front wheel 4 are connected to the double output port of the transmission according to the installation method of the original car. The wheel is suspended at a certain distance from the iron floor and meshed with the flywheel. The flywheel system 5 on one side is solidly connected into one body through the flywheel shaft 11, and the flywheel shaft 11 is fixed on the iron floor through the bearing seat. The wheels 6 are suspended and inst...

Embodiment 3

[0018] Example 3; see image 3 , this embodiment is the embodiment of the object to be measured with front and rear drive. In this technical solution, an integrated axle system is arranged in the middle of the half shaft of the front wheel 4, and the power source 1 drives the dynamometer through the flange and the input The end torque sensor 2 is connected, the input end torque sensor 2 is connected with the input end of the measured object 3 through the flange, the front wheel 4 is installed on both sides of the integrated front axle 13, the measured object 3 is connected with the integrated rear vehicle through the flange The input end of the bridge 7 is connected, the front wheel 4 is meshed with the flywheel system 5, and the tire and the outer circumference of the flywheel system are prevented from slipping through the pre-compression force. The seat is fixed on the iron floor. At the same time, the other side of the flywheel system 5 engages with a pair of rear-end whee...

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Abstract

The invention relates to an automobile power and transmission system performance test stand which is characterized in that the test stand comprises a power source, an input end torque sensor, a tested object, a driving end semi-axis, front end wheels, flywheel systems, rear end wheels, output end torque sensors and a load dynamometer. The input end torque sensor is arranged between the power source and the tested object. The front end wheels are arranged at one side of the flywheel systems. The rear end wheels are arranged at the other side of the flywheel systems. The load dynamometer is connected with the rear end wheels via the output end torque sensors. The technical scheme is ingenious in design, and a problem of real physical inertia of the prepositioned front-drive automobile power and transmission test stand is greatly solved. Besides, the technical scheme adopts the real inertia so that the system dynamic characteristics are more accurate.

Description

technical field [0001] The invention relates to a test bench, in particular to a performance test bench for an automobile power and transmission system, and belongs to the technical field of automobile power assembly. Background technique [0002] Automobile power and transmission system test bench is a key component of automobile transmission system, such as transmission and hybrid power unit, etc. It is a key research and development method for developing function and performance verification and durability testing, which can effectively shorten the development cycle and reduce development costs. At present, most of the world's mainstream automotive transmission system bench equipment adopts a two-motor scheme, that is, a single-drive dynamometer and a single-load dynamometer, in order to realize the test of the front and rear drive transmission systems, and the arrangement is mostly coaxial; or three The motor T-type platform scheme is a single-drive dynamometer and a dua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/02G01M15/00G01M17/007
Inventor 孔国玲张农邱昱
Owner 常州常智汽车部件科技有限公司
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