Multi-motor drive control system of electric vehicle and working method thereof

Abstract

The invention discloses a multi-motor drive control system of an electric vehicle and a working method thereof, and the multi-motor drive control system comprises a left acceleration and deceleration signal collector and a right acceleration and deceleration signal collector, which are fixed on a sliding block and can slide along a slideway fixed on a control box. A left acceleration and deceleration pulling wire and a right acceleration and deceleration pulling wire are in non-sliding positioning connection with an adjusting disc which is fixed on the control box and can rotate and swing according to the shaft center, and dead angle looseness clearance in the parking direction is reversed. The control box is fixed on a vehicle body. A left signal output line is connected with all motor controllers on the left side of the vehicle, and a right signal output line is connected with all the motor controllers on the right side of the vehicle. The acceleration and deceleration pulling wires of the vehicle are connected with the sliding block and pull the sliding block to move along the slideway, thereby accelerating the whole vehicle. One end of a return spring is fixed on the control box, the other end is connected on the sliding block, and the sliding block is pulled back for decelerating the whole vehicle. The adjusting disc is connected with a speed reduction gear via a spin column of a vehicle steering mechanism, thereby realizing the rotation and the swing according to the shaft center and providing the rotational speed differential between driving motors on two sides during the turning of the vehicle.

Description

technical field [0001] The invention relates to the technical field of driving control of electric vehicles. technical background [0002] At present, the drive of electric vehicles is still driven by a single motor, and the half-axis mechanical differential transmission is the main mode. Its disadvantages are: due to the limitations of the size of the single motor itself and its position in the vehicle, the center of gravity, etc., it is not easy to drive the motor to high power, and the power efficiency of mechanical differential transmission is low, so it is not suitable for electric vehicles. Compared with the double-motor or four-motor direct drive power and torque, the power and torque can be multiplied, the energy saving efficiency is high, and the space inside the wheel or around the wheel can be fully utilized, which can effectively reduce and balance the center of gravity of the vehicle and improve the stability of the vehicle. . But the industry has not been abl...

AI Technical Summary

Problems solved by technology

Its disadvantages are: due to the limitations of the size of the single motor itself, its position in the vehicle, and the center of gravity, it is not easy to drive the motor to high power, and the power efficiency of the mechanical diffe

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