Control method for suction lock for automobile back door

Abstract

The present application discloses a control method for the suction lock of the back door of the automobile, the control method includes the steps: S11, obtaining the full lock signal, the half lock signal, the state of the ratchet and the pull cord related to the ratchet information; wherein, the full lock signal is whether the ratchet is detached from pressing the full lock microswitch during the rotation of the ratchet, and the half lock signal is whether the ratchet is detached from the half lock microswitch during the rotation of the ratchet; the pawl The state information of the ratchet refers to whether the pawl is in a locked state or an open state, and the state information of the pull rope refers to whether the pull rope is in a relaxed state or a tensioned state; S12. According to the full lock signal, the half lock signal, the The status information of the ratchet and the pull cord controls the operation of the locking drive motor to realize the locking of the suction lock. The control method of the present application can avoid the problem that the electric back door suction lock with snow load function cannot be automatically closed to the full lock position at low temperature.

Description

technical field [0001] The present application relates to the technical field of the automobile industry, and in particular to a method for controlling a suction lock for a back door of an automobile. Background technique [0002] With the popularization of automobiles in the market, the competition of models is becoming increasingly fierce. The configuration of the electric back door is also gradually increasing, but in the existing market, some electric back door self-closing lock structures with snow load function have the problem that they cannot be automatically closed to the full lock position when the temperature is low. For example, the self-suction lock of the back door with snow load function requires that the back door lock state is in the half-lock position to control the drive of the suction motor to make the back door self-suction to the full lock state. However, at low temperature, when the back door is closed to an unstable state between the half-lock and fu...

AI Technical Summary

Problems solved by technology

However, at low temperature, when the back door is closed to an unstable state between the half-lock and full-lock positions, the rubber sealing strip cannot provide elastic force at low temperature so that the back door cannot bounce back to the half-lock state, and the back door controller cannot perform self-priming

Rubber parts are greatly affected by temperature, and the incidence of problems is high

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