Automobile power transmission route arrangement method

Abstract

The invention discloses an automobile power transmission route arrangement method. The method comprises the steps of S1, preliminarily arranging a power transmission route; S2, carrying out CAE analysis on the preliminarily arranged power transmission route; and S3, optimizing and adjusting the power transmission route. According to the automobile power transmission route arrangement method, the common working condition arrangement of the power transmission route is preferentially ordered, the design target is set, the initial arrangement scheme is optimized and adjusted in combination with CAE analysis, the arrangement is precisely matched with the actual use working condition, and the included angle of each line segment of the power transmission route meets the speed and torque fluctuation design optimization target.

Description

technical field [0001] The invention belongs to the technical field of automobile power transmission, in particular, the invention relates to a method for arranging an automobile power transmission route. Background technique [0002] The engine, gearbox, transmission shaft, and rear axle constitute the power transmission system of the car; the engine and the gearbox are usually connected as a rigid body by assembly, the center of the engine crankshaft and the center of the output shaft of the gearbox are on the same straight line, and light vehicles usually use a three-point suspension. The engine and gearbox are assembled on the frame. There is a suspension support on the left and right sides of the engine, and a suspension support on the gearbox; one or more transmission shafts are set according to the length of the wheelbase. Light commercial vehicles generally use two transmissions. Shaft connection, that is, the intermediate transmission shaft and the transmission shaf...

AI Technical Summary

Problems solved by technology

[0005] The layout of the traditional power transmission line follows the above method, but it is assumed that the fixed point positions of the engine and the transmission shaft on the frame are unchanged, and the rear axle moves forward and backward and translates up and down with the elastic deformation of the suspension; in fact, the frame The force is not uniform, and bending and torsion will occur with different vehicle loads. The fixed points of the engine and drive shaft will change correspondingly with the bending and torsion of the frame, and the suspension connected to the frame will also occur during work. Bending and torsion, the rear axle follows the corresponding torsion of the suspension instead of up and down translation and forward and backward movement, so the traditional layout method has deviations from the actual work of the vehicle, and the angle between the axes of the arranged power transmission route is also different from the actual working conditions of the vehicle. Not the same, there are differences between the actual working conditions and the design goals, and the expected requirements cannot be met

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