Fluted disc type double-work-position sensor

Abstract

The invention provides a fluted disc type double-work-position sensor which comprises a centre shaft sleeve and spring installing holes on a fluted disc. The shaft sleeve is provided with a positioning seat. A Hall induction seat is placed on the positioning seat in a recessed way. A pawl type crank and a fixed cover are arranged and are connected at the spring installing holes, a common connection terminal of the pawl type crank and the fixed cover is limited in the spring installing holes to move. The Hall induction seat is provided with Hall elements which are distributed axially and radially. The Hall elements are adapted with annular magnetic steel in a movable torsional force axial direction converter assembly in a hollow accommodation cavity which is sequentially formed by the Hallinduction seat, a fluted disc center hole to the pawl type crank, and a plurality of magnetic steel positions on centre shaft transition annular sleeve arranged on the pawl type crank. Thus, reinforcing rotation of a vehicle is controlled through axially and radially acquired electric signals outputted by the Hall elements. According to the invention, through processing of a double-work-position signal, a corresponding signal is outputted in a humanized way to satisfy achievement of riding will of a rider.

Description

technical field [0001] The invention relates to the field of vehicle electric power assist transmission, in particular to a structure of a vehicle electric power assist sensor. Background technique [0002] A part of the existing torque sensor is installed on the center shaft of the electric bicycle, which mainly includes: a crank, an active part fixedly connected with the crank, and a passive part arranged in parallel with the active part, and the passive part is elastically connected to the active part. Connected and relatively rotatable, the active part and the passive part are respectively provided with several active magnetic assemblies and several passive magnetic assemblies, and the torque sensor also includes a Hall element induced by two sets of magnetic assemblies to collect signals. Components are arranged on the PCB board; the passive part refers especially to the toothed plate of the electric bicycle. This kind of torque sensor collects the change of the magneti...

AI Technical Summary

Problems solved by technology

[0002] A part of the existing torque sensor is installed on the center shaft of the electric bicycle, which mainly includes: a crank, an active part fixedly connected with the crank, and a passive part arranged in parallel with the active part, and the passive part is elastically connected to the active part. Connected and relatively rotatable, the active part and the passive part are respectively provided with several active magnetic assemblies and several passive magnetic assemblies, and the torque sensor also includes a Hall element induced by two sets of magnetic assemblies to collect signals. Components are arranged on the PCB board; the passive part refers especially to the toothed plate of the electric bicycle. This kind of torque sensor collects the change of the magnetic flux sensed by the Hall element on the active magnetic assembly and the passive magnetic assembly when the toothed plate rotates. The frequency signal is used to determine the state of the vehicle's force, and its magnetic induction station corresponds to the signal collected by the rotation of the gear plate; the instructions issued after the signal is processed by the central processor, because the instruction source is single, so it is often related to the rider There is a big gap in the will; a kind of "torque sensor" disclosed in Chinese patent CN102221432A has carried out the setting of strengthening the signal acquisition intensity on the basis of the above-mentioned torque sensor, but still because the station setting of the acquisition signal is slightly single, and There are certain limitations in its application, and its structure is relatively complex, so it is necessary to innovate on this basis to meet the market's demand for new torque sensors

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