Electronic differential control system of electric vehicle

Abstract

The invention discloses an electronic differential control system of an electric vehicle, which belongs to a control system. The electronic differential control system of the electric vehicle of the invention comprises a central control circuit, left and right motors, corresponding left and right sensors and corresponding left and right controllers, wherein the central control circuit is an analog electronic circuit; and the central control circuit receives signals, which are output by the left and right sensors and related to left and right motor torques, and outputs corresponding speed regulation signals to the left and right controllers. The electronic differential control system of the electric vehicle controls the torque difference of two motors when the rotating speeds of the two motors are different, so the electronic differential function of the electric vehicle is realized.

Description

technical field [0001] The invention titled an electronic differential control system for electric vehicles relates to a control system suitable for electronic differential control of electric vehicles and electronic differential control of three-wheeled electric vehicles. Background technique [0002] Some of the existing general electronic differential control technologies have complex control circuits, some have slow response speeds, some have poor ability to adapt to complex road conditions and working conditions, and generally have shortcomings such as unreliability and unsafety. The patent application number is 02136498.2 A disclosed four-wheel electronic differential steering control system adjusts the wheel speed after calculating the target speed of each wheel, which cannot adapt to various complex road conditions and working conditions; an electric vehicle disclosed in the patent application number 200720107279.9 The utility model that turns to the electronic diffe...

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Problems solved by technology

[0002] Some of the existing general electronic differential control technologies have complex control circuits, some have slow response speeds, some have poor ability to adapt to complex road conditions and working conditions, and generally have shortcomings such as unreliability and unsafety. The patent application number is 02136498.2 A disclosed four-wheel electronic differential steering control system adjusts the wheel speed after calculating the target speed of each wheel, which cannot adapt to various complex road conditions and working conditions; an electric vehicle disclosed in the patent application number 200720107279.9 The utility model that turns to the electronic differential speed controller lacks the control of the motor torque and cannot adapt to various complex road conditions and working conditions; the differential control system of the two-wheel drive electric vehicle disclosed in the patent application number 200810020544.9 has the motor torque control, but the control circuit uses complex digital circuits such as single-chip microcomputers, which cannot be controlled in real time, and the response speed is slow, which is very unsafe

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