Control system of dual-drive electric automobile

Abstract

The invention relates to a control system of a dual-drive electric automobile. A main controller controls a main motor to use. The coil of an overcurrent relay is serially connected in the power supply line of the main motor. The main motor and an auxiliary motor respectively output power to a rear axle through two electric automobile bidirectional sliders. The movable contact switch of the overcurrent relay is serially connected between the signal output end of an accelerator and the signal input end of an auxiliary controller. The signal input end of the accelerator is connected with the signal output end of the main controller. A vehicle-mounted power supply respectively supplies power to the main controller and the auxiliary controller. By using the overcurrent relay, not only can the running speed of the electric automobile be guaranteed, but also the energy consumption during constant-speed running is reduced and the running mileage is elongated; by using the bidirectional sliders, the goal of transmitting the power to the rear axle to drive the electric automobile to run no matter that the motors rotate forwards or backwards; and since balls are not in contact with outer rings, the friction resistance is reduced, the sliding distance of the electric automobile is longer and the running mileage is elongated.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a control system for a dual-drive electric vehicle. Background technique [0002] Electric vehicles are powered by vehicle-mounted power supplies, and have the characteristics of environmental protection and energy saving. However, due to the limitation of vehicle-mounted power supply capacity, their driving speed and mileage after charging have certain defects. Service life, meanwhile, has also brought inconvenience to user's life. [0003] The driving speed of an electric vehicle is provided by the drive motor of the on-board power supply. In order to ensure its driving speed, a high-power motor must be used. However, when driving at a constant speed, a low-power motor can meet the requirements. 30% of electric energy is wasted, which accelerates the consumption of on-board power supply, so the speed of electric vehicles can be increased by changing the number and power of mot...

AI Technical Summary

Problems solved by technology

[0002] Electric vehicles are powered by vehicle-mounted power supplies, and have the characteristics of environmental protection and energy saving. However, due to the limitation of vehicle-mounted power supply capacity, their driving speed and mileage after charging have certain defects. service life, at the same time, it also brings inconvenience to the life of users

[0003] The driving speed of an electric vehicle is provided by the drive motor of the on-board power supply. In order to ensure its driving speed, a high-power motor must be used. However, when driving at a constant speed, a low-power motor can meet the requirements. 30% of electric energy is wasted, which accelerates the consumption of on-board power supply, so the speed of electric vehicles can be increased by changing the number and power of motors

Images