Fault processing method for hub motor distributed driving system

Abstract

The invention discloses a fault processing method for a hub motor distributed driving system. The method comprises the steps that whether each hub motor fails or not is judged; the torque T of a failure hub motor is adjusted, wherein the torque T of the failure hub motor is larger than 0 and smaller than the actual output torque of the failure hub motor; and the torque of each normal hub motor isadjusted according to the power performance requirement of a vehicle and the stability of the whole vehicle. The failure hub motor torque is controlled through the drive failure factor, on the premisethat the stability of the whole vehicle is maintained, the torque of other hub motors is controlled in combination with the intention of a driver to guarantee the dynamic property of the vehicle, andthe advantage that the distributed drive hub motor vehicle is independent and controllable is brought into play to the maximum extent; the problem that a four-hub motor driven vehicle is insufficientin dynamic property under a failure fault is effectively solved, and the safety and the working efficiency of emergency rescue work are improved.

Description

technical field [0001] The invention belongs to the technical field of special vehicles, and specifically discloses a fault handling method for a distributed drive system of an in-wheel motor. Background technique [0002] At present, in the fault control of distributed drive vehicles, the widely used control method is the average distribution of torque, because the controller reduces the torque of each wheel hub motor or directly converts the driving form (from four-wheel drive to two-wheel drive) to maintain the failure state. Stability, which greatly reduces the dynamic performance of the vehicle. If the vehicle is in high-risk conditions such as emergency, rescue or off-road, the vehicle cannot respond in time to the driver's intention to drive out of the dangerous zone as soon as possible, and serious accidents may occur, threatening the driver. and the safety of rescuers. for this reality. [0003] The description of Chinese invention patent CN108859766A discloses a ...

AI Technical Summary

Problems solved by technology

[0005] In order to eliminate the technical problems mentioned in the background technology, the present invention provides a fault handling method for the distributed drive system of in-wheel motors, which uses the drive failure factor to control the torque of the in-wheel motor in failure, and combines the driver’s The purpose is to control the torque of other hub motors to ensure the dynamic performance of the vehicle, and to maximize the advantages of independent controllability of distributed drive hub motor vehicles, effectively solving the problem of insufficient power of four-wheel hub motor driven vehicles under failure, and improving emergency response Safety and efficiency of rescue work

Images