The invention discloses a vehicle electric
back door ECU controller and a control method. The controller comprises a shell and an ECU installed in the shell. A
control system of the ECU comprises a
central processing unit, a CAN
signal receiving and sending unit with a
signal receiving and sending function and a
CAN bus used for receiving vehicle information, wherein one end of the CAN
signal receiving and sending unit is electrically connected with the
CAN bus, and the other end of the CAN signal receiving and sending unit is electrically connected with the
central processing unit. The
control system further comprises a stay bar control device, a door lock control device, a self-priming
motor control device, a
back door switch, a fault detection unit, a
buzzer alarm and a
power supply unit. Information of the
CAN bus is obtained, so that current vehicle state information is judged, a
back door is automatically controlled to be opened, closed and locked according to the state of a vehicle, the automobile
tail door is opened and closed safely and reliably, and the controller is more user-friendly and more intelligent; and in addition, the shell is exquisite and simple in structure,no tool is adopted and no screw is used for fixing in the assembling process of the ECU, the controller is simple, easy to operate and high in assembling efficiency, and assembling cost is saved.