Road test vehicle integrated transmission device transmission link power flow test method
A technology of transmission device and test method, applied in the direction of vehicle test, machine gear/transmission mechanism test, measurement device, etc.
Active Publication Date: 2019-03-19
CHINA NORTH VEHICLE RES INST
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[0005] In view of this, the present invention provides a method for testing the transmission link power flow of a road test vehicle integrated transmission, which can solve the problem of real-time testing of the transmission link power flow of the vehicle transmission during the actual vehicle road test
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[0022] The present invention will be described in detail below with reference to the drawings and embodiments.
[0023] The present invention provides a road test vehicle integrated transmission transmission link power flow test method. According to the design calculation specification, the relationship between the components of the integrated transmission is simplified, and the relationship block diagram of the components of the integrated transmission is obtained, see figure 1 . The transmission link of the comprehensive transmission is determined by the block diagram of the relationship between the components of the comprehensive transmission and the gear working conditions.
[0024] The power flow of the transmission link of the integrated transmission device determines the power flow direction of each transmission link according to the transmission link and the structure of each transmission link component. The transmission link backbone is the total input system of the trans...
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The invention discloses a road test vehicle integrated transmission device transmission link power flow test method and belongs to the technical field of vehicle tests. The road test vehicle integrated transmission device transmission link power flow test method includes the steps that firstly, torque measuring points and rotation speed measuring points of a main path and branches in a transmission link inside a vehicle transmission device are selected; then, the torque and rotation speed of key transmission parts on the main path and branches in the transmission link inside the vehicle transmission device during road tests of a vehicle are measured in real time; transmission link transmission power flow of the transmission device is obtained by converting the product of the torque and therotation speed at the same moment. By adopting the road test vehicle integrated transmission device transmission link power flow test method, the problem of testing the transmission link power flow of the vehicle transmission device in real time during the road tests of the vehicle can be solved.
Description
Technical field [0001] The invention relates to the technical field of vehicle testing, in particular to a real-time testing method for the power flow of a transmission link of a vehicle road test transmission device. Background technique [0002] The transmission power flow of the vehicle integrated transmission device transfers the power of the power device to the drive device. Through power transmission, torque and speed characteristics expansion, the vehicle forwards, reverses, accelerates, climbs, and turns are realized. Through the study of power flow, the power loss of the transmission device can be effectively reduced, the net power can be increased, and the flow direction and size distribution of the power flow of the transmission link can be controlled, and various performance indicators of the vehicle can be improved without affecting the engine performance. [0003] Over the years, vehicle designers have conducted a lot of research on the design and optimization of the ...
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IPC IPC(8): G01L3/24G01M17/007G01M13/023
CPCG01L3/242G01M13/02G01M17/007
Inventor 宋美球毛明李振平张金乐徐宜卜树峰陈嘉杨张喜明王敏乔丽张鑫薛阳红
Owner CHINA NORTH VEHICLE RES INST