Double-station Hall sensor

Abstract

The invention discloses a double-station Hall sensor. The double-station Hall sensor at least comprises a rotating wheel and comprises a Hall signal central processing unit which is arranged outside the rotating wheel or on the rotating wheel, wherein a radial Hall sensor is arranged on the rotating wheel and is electrically connected with the Hall signal central processing unit; the Hall signal central processing unit is electrically connected with an axial sensor arranged on the rotating wheel; and a rotating wheel power-assisted rotation signal is outputted after magnetic induction electrical signals inputted by the radial Hall sensor and the axial Hall sensor are processed by the Hall signal central processing unit. After the electrical signals acquired by double stations are processed by the Hall signal central processing unit, a corresponding signal can be outputted in a humanized mode to meet the requirements of riders, and practical equipment is provided for humanization and intellectualization operation of the conventional Hall sensor.

Description

technical field [0001] [0002] The invention relates to the field of vehicle electric power assist transmission, in particular to a structure of a vehicle electric power assist sensor. [0003] Background technique [0004] 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 c...

AI Technical Summary

Problems solved by technology

[0004] 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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