Position detection mechanism and drive-by-wire gear shifting actuator

Abstract

The invention provides a position detection mechanism and a drive-by-wire gear shifting actuator. The position detection mechanism comprises a rack, a sliding block mechanism, a position detection rocker arm and a position detection circuit structure, wherein the sliding block mechanism, the position detection rocker arm and the position detection circuit structure are arranged on the rack; the sliding block mechanism comprises a sliding frame, a sliding rod, a sliding block and a sliding boss arranged on the sliding block; the position detection rocker arm comprises a rocker arm body hinged to the rack; the position detection circuit structure corresponds to the rocker arm body; a rocker arm guide groove is formed in the rocker arm body; the sliding boss is sleeved with the rocker arm guide groove; in the work process, the sliding block slides linearly on the sliding rod, and the sliding boss swings and slides in the rocker arm guide groove; and when the sliding block and the sliding boss move by the same distance along the sliding rod, the angle of the sliding boss swinging in the rocker arm guide groove is the same. By means of the technical scheme, linear movement can be effectively converted into rotary movement, the rotation angle can be detected accurately, the structural size is small, and detection accuracy is high.

Description

technical field [0001] The invention relates to the technical field of transmission shift control, in particular to a position detection mechanism and a shift-by-wire actuator. Background technique [0002] Automobile manipulation and control by wire is a direction of future development. The wire shift actuator is a mechanical and electronic integrated mechanism device used to control the automatic transmission to perform P, R, N, D, S (or other type) gear switch. Moreover, it is often necessary to detect the position of the transmission shift rocker during the control process. In the traditional technology, a rotation sensor is basically used to detect the position of the shift rocker, that is, to detect the rotational angle position of the shift rocker. For the detection of the linear position, either the breakpoint position detection method is used for detection, or the sliding rheostat is used for detection. Among them, the breakpoint position detection method is to u...

AI Technical Summary

Problems solved by technology

This kind of sliding rheostat detection method is relatively traditional in technology, l

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