Electric power-assisted steering control system and electric power-assisted steering control method for electric bicycle

Abstract

The invention discloses an electric power-assisted steering control system and an electric power-assisted steering control method for an electric bicycle. The electric power-assisted steering control system is characterized in that a steering handlebar, a steering input shaft and a torque sensor are sequentially connected with one another, and a power assisting motor, an electromagnetic clutch, a speed reducing mechanism, a steering output shaft, a steering wheel and a speed sensor are sequentially connected with one another; and an electronic control device comprises a power assisting characteristic controller and a current controller which are connected with each other, and the control device receives signals of the torque sensor and signals of the speed sensor and controls the power assisting motor and the electromagnetic clutch to implement an electric power-assisted steering function. The electric power-assisted steering control system and the electric power-assisted steering control method have the advantages that forward power-assisted control can be performed when the electric bicycle runs at a low speed, reverse power-assisted control can be performed when the electric bicycle runs at a medium or high speed, and the steering control stability and the running safety of the electric bicycle are improved according to a running condition of the electric bicycle; and particularly, sideslip or rollover of the electric bicycle due to excessively high steering torque exerted by a driver or hasty steering and the like can be prevented, and the running safety is improved.

Description

technical field [0001] The invention belongs to electric bicycle control systems, in particular to an electric power steering control system and method for electric bicycles. Background technique [0002] As a new type of transportation, electric bicycles have developed rapidly with the advantages of zero emission, no pollution, low noise, low energy consumption, and convenience. The number of electric bicycles has increased year by year, but the traffic accidents caused by them have also increased significantly. Tracing it to its cause, in addition to illegal activities such as speeding and occupying the road, there are also some defects in its own structural performance. Aiming at the disadvantage of poor driving stability of electric bicycles due to the structural instability of the two wheels touching the ground and light steering, the EPS suitable for electric bicycles can be realized by referring to the electronic power steering control of automobiles, which can improv...

AI Technical Summary

Problems solved by technology

[0002] As a new type of transportation, electric bicycles have developed rapidly with the advantages of zero emission, no pollution, low noise, low energy consumption, and convenience. The number of electric bicycles has increased year by year, but the traffic accidents caused by them have also increased significantly

The reason is that in addition to illegal activities such as speeding and lane-occupying, there are also some defects in its own structural performance.

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