Method, system and equipment for arranging and checking power transmission system based on CATIA (computer-graphics aided three-dimensional interactive application)

Abstract

The invention provides an arrangement checking method, system and equipment of a power transmission system based on CATIA. The method comprises the steps that a point B serves as an end point, a point A and the point B are connected to serve as a datum line AB, and rotation is conducted to make a conical surface E with the conical angle of 2 theta; judging whether the position point of the hinge center point of the fixed joint on the outer side of the driving half shaft and the connecting shaft in each limit state and the position point of the center point of the driving wheel in each limit state are surrounded in a conical surface E or not; and if not, connecting the position point of the hinge center point of the fixed joint on the outer side of the driving half shaft and the connecting shaft in each limit state and the position point of the center point of the driving wheel in each limit state with the point B to generate a corresponding limit center line, acquiring an included angle between each limit center line and the datum line AB, and setting the included angle as a target included angle of the driving half shaft. According to the arrangement design checking method adopting CATIA modeling, arrangement design can be rapidly carried out, and whether the arrangement structure of the driving half shaft is reasonable or not can be accurately analyzed.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a CATIA-based power transmission system layout check method, system and equipment. Background technique [0002] For pure electric vehicles, the powertrain and the driving half shaft are important parts of the power transmission system. The left and right drive wheels provide power. Usually, if the power transmission system is not properly arranged, it may cause problems such as abnormal noise in power transmission, vibration at start, and high-speed noise. [0003] In the layout design of the power transmission system, the arrangement angle between the inner and outer sides of the driving half shaft should generally be kept as small as possible. However, there are many boundary conditions that affect the included angle of the driving half shaft, so that it is difficult to obtain a reasonable arrangement angle in actual situations. , either the layout space is wasted due to the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a CATIA-based power transmission system layout checking method, system and equipment to solve the problem that it is difficult to obtain a reasonable layout angle at the current stage, or the layout space is wasted due to the large layout angle, or The problem of transmission abnormality caused by too small arrangement angle

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