Driving shaft slip deflection angle checking method and driving shaft slip deflection angle checking system

Abstract

The invention discloses a method and a system for checking a slip deflection angle of a driving shaft. The method comprises the following steps of acquiring a hard point of a whole vehicle; obtainingthe mass center position of the power assembly; obtaining adjustment parameter information of the suspension component; and obtaining a driving shaft checking model according to the whole vehicle hardpoint, the mass center position and the adjustment parameter information, and obtaining a driving shaft envelope body and a slip swing angle curve according to the driving shaft checking model. The method for checking the slip deflection angle of the driving shaft is advantaged in that influence parameters such as the displacement of a power assembly and the adjustment amount of four-wheel parameters are constructed on a driving shaft checking model, the contribution and the influence degree of each parameter variable on the slip amount, the swing angle and the envelope of the driving shaft can be effectively analyzed, and meanwhile, specific analysis and checking can be carried out in combination with actual vehicle arrangement and parameters, so a problem of insufficient design or excessive design caused by design and checking of all vehicle types only depending on empirical values is avoided, and the obtained drive shaft envelope body and slip swing angle curve are more accurate.

Description

technical field [0001] The present application relates to the technical field of vehicle manufacturing, in particular to a method for checking the slip angle of a drive shaft and a system for checking the slip angle of a drive shaft suitable for the checking method. Background technique [0002] At present, the constant velocity drive shaft assembly is checking the maximum angle between the fixed joint and the moving joint, the sliding distance of the moving joint, and the clearance between the outer envelope and the surrounding boundary through DMU for motion analysis. In the related technology, only left and right wheel wheel jump and steering stroke are used as the drive in the motion analysis, resulting in a large gap between the calibration and the actual vehicle motion. The detachment from the moving joint shell will cause the vehicle to lose power; on the other hand, it will cause motion interference between the shaft of the drive shaft assembly and the surrounding pa...

AI Technical Summary

Problems solved by technology

In the related technology, only left and right wheel wheel jump and steering stroke are used as the drive in the motion analysis, resulting in a large gap between the calibration and the actual vehicle motion. The detachment from the moving joint shell will cause the vehicle to lose power; on the other hand, it will cause motion interference between the shaft of the drive shaft assembly and the surrounding parts, affecting the driving of the vehicle, and the accuracy of the simulation results is poor. , there is room for improvement

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