Column base torque sensing device and electric bicycle

Abstract

The invention relates to a column base torque sensing device and an electric bicycle. The column base torque sensing device comprises a flywheel fixing outer shell, a column base body, a signal processor and an induction coil. The flywheel fixing outer shell externally sleeves the tower base body; the tower base body comprises a relative rotating portion, a torque sensing deformation portion and aload connection portion in sequential connection from one end of the tower base body to the other end of the tower base body; the inner periphery of the torque sensing deformation portion is providedwith a torque sensing soft magnetic deformation unit; the induction coil is arranged in the tower base body and is in position corresponding to the torque sensing soft magnetic deformation unit; thesignal processor is electrically connected with the induction coil. The electric bicycle comprises the column base torque sensing device. By integration of a torque sensor in the column base, use of conventional center shaft accessories of bicycles can be met while cost reduction is realized, and the requirement of torque riding comfort can be met.

Description

technical field [0001] The invention relates to the technical field of torque detection, in particular to a tower base torque sensing device and an electric bicycle. Background technique [0002] An electric bicycle refers to a mechatronic personal vehicle that uses a battery as an auxiliary energy source on the basis of an ordinary bicycle, and is equipped with operating components such as a motor, a controller, a battery, and a brake handle, as well as a display instrument system. At this stage, more and more electric bicycles are equipped with torque sensors on the central shaft, so that during riding, the motor output power of the electric bicycle can be adjusted according to the measured torque to improve riding comfort. [0003] In the related technology, the torque of the electric bicycle is detected by installing a bilateral torque sensor on the center shaft of the electric vehicle. It is necessary to set a torque sensing sleeve on the center shaft, and the crank and...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tower base torque sensing device and an electric bicycle, so as to alleviate the need to install a bilateral torque sensor on the central axis of the electric vehicle when detecting the torque of the electric bicycle in the prior art. The torque sensing sleeve is installed, and the crank and chainring connected to the center shaft need to be specially made, which brings about complex structure and high cost.

Images