Opening and closing drive system and control method of automobile electric back door based on gesture control

Abstract

An automobile electric back door opening and closing drive system and control method based on gesture control, including a back door control unit, the MCU of the back door control unit is respectively connected with the motor drive circuits on the left and right sides, the door lock locking and unlocking motor drive circuits, Power management circuit, A / D detection circuit, switch signal detection circuit, communication circuit, Hall drive circuit are connected, a gesture recognition unit is set, the gesture recognition unit is connected to MCU through a wire, and the gesture recognition unit includes a gesture recognition chip and two power supply chips The gesture recognition chip is electrically connected to the two power supply chips respectively. After the MCU receives the gesture command signal from the gesture recognition chip, it combines the vehicle status information and the current status of the back door to output control signals to the left and right motor drive circuits through logical judgment. The door lock locking and unlocking motor drive circuit controls the operation of the electric strut motors on the left and right sides, the back door locking and unlocking motors, and realizes the automatic opening, closing and stopping functions of the electric back door.

Description

technical field [0001] The invention relates to the technical field of control of electric back doors of automobiles, in particular to a driving system and control method for opening and closing electric back doors of automobiles based on gesture control. Background technique [0002] With the advancement of automobile electronic drive technology and the improvement of people's requirements for operating comfort and convenience, more and more automobile back doors begin to use electric back doors. At present, in the existing electric back door system, there are usually the following several operation modes, one is to input signals to the car back door control unit by operating the remote control switch, and the other is to send signals to the car back door control unit through the manual electric back door operation switch. The input signal of the door control unit is another kind of input signal to the car back door control unit through the kick sensor. After receiving the ...

AI Technical Summary

Problems solved by technology

However, both the remote control switch and the back door operation switch need to be operated manually. Some manual switches are located in hidden places, difficult to touch, and very inconvenient to operate. Moreover, the kick sensor is usually based on the capacitive mode. , people need to stand within the appropriate position behind the back door of the car to perform kicking actions before they can be recognized by the kicking sensor. It is very easy to kick the bumper, causing damage to the vehicle body or personal injury

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