Control method for parking release apparatus of shift-by-wire shifting device

摘要

A control method for a parking release apparatus of a shift-by-wire shifting device can improve the commercial value of a vehicle by improving safety of the vehicle and preventing robbery, by interfering with or preventing an attempt of abnormally and manually releasing a parking state of the vehicle when there is no problem in the electric system of the vehicle, using a part provided to be manually operated in the parking release apparatus such that a P-stage state and an N-stage state can be manually switched when a problem, such as discharge, occurs in the electric system, in the vehicle equipped with a shift by wire apparatus.

主权项

1. A control method for a parking release apparatus of a shift-by-wire shifting device, the method comprising:
determining a releasing attempt that determines whether there is an abnormal manual releasing attempt on the basis of whether there is movement in a display part, wherein the display part is capable of making operational displacement in a parking cable by motion in parts of the parking release apparatus, wherein the determining a releasing attempt is performed for a predetermined time that is set to prevent the vehicle from being moved; anti-releasing that performs control to prevent rotation of a motor, using a braking circuit of the motor, when it is determined that there is the abnormal manual releasing attempt; checking parking subsequent to the anti-releasing, that determines whether the display part is at a position corresponding to a vehicle in a parking state; post processing that informs breakdown or makes an alarm when it is determined that the display part is not at the position corresponding to the vehicle in the parking state; and switching a controller to a sleep mode when there is no abnormal manual releasing attempt for the predetermined time.