A method of controlling a drive axle capable of disconnecting half shafts

Abstract

The invention relates to a novel drive axle capable of disconnecting half axles and a control method thereof. The novel drive axle is mainly composed of an upstream half axle, a downstream half axle,a bearing, a permanent magnet, a winding coil and an axle housing. One end of the upstream half axle is connected with a differential mechanism by virtue of a spline, and the other end of the upstreamhalf axle is opposite to one end of the downstream half axle and is fixed on the axle housing by virtue of the bearing; the one end of the downstream half axle is also fixed on the axle housing by virtue of a bearing, and the other end of the downstream half axle is connected with a hub; twisting force is transferred by electromagnetic force between the upstream half axle and the corresponding downstream half axle; and input current of the winding coil is controlled by a controller. Controllable disconnection of the half axles of the drive axle is realized, and separation and combination andconnection strength of the half axles can be automatically adjusted according to complete vehicle conditions. Meanwhile, since a manner of electromagnetic interaction force is adopted, the novel driveaxle does not have contact wear, is stable in performance, long in life, safe and reliable and does not need age-based maintenance.

Description

technical field [0001] The invention relates to a method for controlling a drive axle capable of disconnecting a half shaft, and belongs to the technical field of vehicles. Background technique [0002] The drive axle is located at the end of the car transmission system and is mainly composed of the final drive, differential, half shaft and drive axle housing. The entire drive axle is connected to the frame through the suspension. The power of the engine is transmitted from the transmission shaft to the main reduction gear, and then transmitted to the half shafts at both ends through the differential, and then to the tires through the half shafts to drive the whole vehicle to run. During the process, the main reducer changes the direction of torque transmission through a pair of bevel gear pairs, and the speed ratio of the main reducer increases the torque of the engine while reducing the speed to meet the needs of the car. The differential can make the rotation speed of th...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new type of drive axle that can be disconnected from the axle shaft and its control method, so as to solve the problem in the prior art that there is no reliable, stable, small space-occupied and capable of buffering the impact of the road on the axle gear mechanism. drive axle problem

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