Electronic vehicle power-assisted steering device

Abstract

The invention relates to an electronic vehicle power-assisted steering device which comprises a lower rotating shaft connected with a lower ring rotor of a torsion sensor in a clamping way, an upper rotating shaft assembly arranged on the top end of the lower rotating shaft, a pre-twisting assembly arranged on the upper rotating shaft assembly, and a torsion bar, wherein the two ends of the torsion bar are respectively connected with an upper rotating shaft and the lower rotating shaft; the upper rotating shaft assembly is provided with a plurality of first adjusting parts on the upper rotating shaft; the upper rotating shaft assembly is also provided with a first adjustment part and a second adjustment part which are matched with each other on an angle sensing part of an upper ring rotor connected with the torsion sensor in a clamping way; the pre-twisting assembly is arranged, so that a handle is stably held, any action of the electronic vehicle power-assisted steering device can be avoided, and the angle sensing part is further enabled to be assembled on the upper rotating shaft in an adjustable way; during assembly, the torsion sensor is kept in a zero state, and the assembly position between the angle sensing part and the upper rotating shaft is adjusted, so that the angle sensing part is more easily assembled with the torsion sensor which is in the zero state, and the signal read accuracy of the torsion sensor can be improved.

Description

technical field [0001] This invention is a vehicle electronic power assisted steering device, especially a vehicle electronic power assisted steering device that can stabilize the handle, prevent the electronic power assisted steering device from arbitrarily actuating, further eliminate assembly tolerances and improve signal interpretation accuracy. Background technique [0002] The steering pre-twist device currently used in vehicles (such as ATVs, multi-purpose vehicles) mainly uses the male thread of the upper shaft connected under the handle to correspond to the female thread of the lower shaft connected to the wheel. Resistance is generated to achieve the effect of pre-twisting. Since the other end of the lower shaft relative to the female thread is engaged with the upper ring rotor of a torque sensor, when the male thread of the upper shaft engages the female thread of the lower shaft When the lower shaft is driven to rotate, the upper ring rotor of the torque sensor w...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a vehicle electronic power assisted steering device. It is hoped that the invention can stabilize the handle, avoid any actuation of the electronic power assisted steering device, and further improve the angle sensing block embedded in the torque sensor. Due to processing and Due to the assembly tolerance, the torque sensor cannot be kept in the zero-return state after assembly, resulting in the problem of distortion of the interpretation signal of the torque sensor

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