Digital intelligent controller for brushless electric vehicle

Abstract

This invention relates to a brushless motor car digit intelligent controller, which comprises speed sensor, load sensor, switch control and comparer, hand gear, brake control, single machine, brushless direct motor controller, three-phase power switch and brushless motor. It accurately sends the electricity to the motor through the instant speed signals and load signals got from motorcycle middle or terminal positions and the process by single machine to keep the motor in efficient working status.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle control, and in particular relates to a digital intelligent controller of a brushless electric vehicle. Background technique [0002] Existing electric vehicles, such as electric bicycles, all have a set of controllers that control the working conditions of the electric motors, and the controllers control the work of the electric motors according to the manual operation instructions of the rider. The basis for the cyclist to issue various instructions is the feeling and experience judgment of the riding situation, such as under light load, heavy load state, climbing and other driving states, because it is impossible for people to accurately feel the electric vehicle in various complex conditions. The speed and load changes under working conditions, let alone the most effective power that the motor needs to provide under these conditions cannot be accurately obtained. Therefore, this kind ...

AI Technical Summary

Problems solved by technology

The basis for the cyclist to issue various instructions is the feeling and experience judgment of the riding situation, such as under light load, heavy load state, climbing and other driving states, because it is impossible for people to accurately feel the electric vehicle in various complex conditions. The speed and load changes under working conditions can not accurately obtain the most effective power that the motor needs to provide under these conditions. Therefore, this kind of artificial operation control is often inaccurate, sometimes even wrong, and will give the motor Unnecessary damage is caused, which is the main reason for the high repair rate of existing electric bicycle motors. At the same time, it also causes high current depth and excessive discharge of the battery, shortening the service life of the motor and battery. For example, when going uphill or headwind, people often hope Increase the input voltage without decreasing the speed, but because the current increases with the increase of the load when going uphill, it will exceed the rated power of the motor, causing the motor to stall and heat up or even burn out. In addition, continuous high-current discharge will also damage the lead-acid battery. Relatively large, resulting in shortened service life

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