Swing rod position calibration device and its error elimination method and wire-controlled shift actuator

Abstract

A swing rod position calibration device, including a frame, a sliding mechanism, a swing arm mechanism, a detection mechanism and a host computer; the sliding mechanism includes a slider, a slider and a limit block, the slider is arranged on the frame, and the slider is arranged on On the slide bar, the limit block is detachably arranged on the frame, and the slide bar passes under the limit block; the swing arm mechanism includes a swing arm and a magnetic part, one end of the swing arm is hinged to the frame, and the other end of the swing arm Slidingly connected to the slider, the magnetic part is connected to the swing arm; the detection mechanism includes a Hall sensor, the Hall sensor has an EEPROM function, and the Hall sensor is set correspondingly to the magnetic part; when the slider is against the limit block, the Hall sensor The Hall sensor detects the first angle of the swing arm, the host computer is used to calibrate the first angle, and outputs the calibrated second angle, and the Hall sensor is used to store the second angle. The pendulum position calibration device of the invention can eliminate the influence of magnetic field deflection angle error. The invention also relates to a method for eliminating the position error of the shift-by-wire actuator and the swing rod.

Description

technical field [0001] The invention relates to the technical field of transmission shift control, in particular to a swing rod position calibration device, an error elimination method thereof, and a wire-controlled shift 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. [0003] In the traditional technology, a hall sensor is used to cooperate with a magnet to detect the position of the shift rocker, that is, to detect the rotation angle position of the shift rocker. However, due to manufacturing errors in the cutting of the magnet, the magnetic field deflection angle of the magnet is relatively large (-12°<...

AI Technical Summary

Problems solved by technology

The stroke deviation of 4.8mm is larger than the reserved margin of 2.5mm, and there is a phenomenon of front and rear interference jamming, which is finally manifested in the actual vehicle as the lack of gear shifting and motor stalling, resulting in functional failure

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