Intelligent running speed control system for electric bicycle

Abstract

This invention discloses one intelligent control system, suited to the electronic bicycle, that automatically adjusts the speed of the electronic bicycle under three riding conditions of PAP , VPC and DD, according to whether the rider really steps on or not and rotates the control handles or not. Its characteristic is that the system can automatically judge whether the rider really steps on or not according to the contrast between the pedaling speed and the whole speed, and that the system makes out the size of driving motor power according to the size of signals that the speed sensor passes back. When the rider really steps on, he is in PAP condition without rotating the control handles, or the rider is in VPC condition after he rotates the control handles to regulate the output power of the one-chip drive motor. While the rider doesn't really step on, he can rotate the control handles to regulate the output power of the one-chip drive motor and enters DD condition. Through judging whether or not the rider rotates the control handles and really steps on, the system can automatically switch the three kinds of running conditions of regular man-machine assistance ratio, controllable man-machine assistance ratio and all-control electric driving.

Description

technical field [0001] The invention relates to a speed control system of an electric bicycle, in particular to an intelligent control system for the speed of an electric bicycle that automatically controls the speed of the electric bicycle according to whether the rider is actually stepping on the pedal and whether the control handle is turned. Background technique [0002] As a green product, electric bicycles have a series of advantages such as no pollution, speed, moderate price, small footprint, and easy riding. There are also many preferential policies for bicycles. [0003] The speed control of the existing electric bicycles is generally realized by turning the control handle. The starting methods can be divided into two ways: manual starting and zero starting. The electric bicycle can only be started after reaching a certain speed by stepping on it. This starting method is more laborious and inconvenient, especially when starting uphill; in the zero-starting mode, t...

AI Technical Summary

Problems solved by technology

[0003] The speed control of the existing electric bicycles is generally realized by turning the control handle. The starting methods can be divided into two ways: manual starting and zero starting. The electric bicycle can only be started after reaching a certain speed by pedaling. This starting method is more laborious and inconvenient, especially when starting uphill; in the zero starting mode, the electric bicycle is completely started by the motor. It is realized by turning the control handle, so there are unsafe factors in the starting process. If the control handle is turned too much when starting, the car may suddenly accelerate, causing the rider to jump out quickly before the rider is fully prepared. Throwing the cyclist out of the car will cause a safety accident. At the same time, short-term acceleration will have a great impact on the service life of the battery. If things go on like this, the battery life will be greatly shortened and the user's use cost will be increased.

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