Vehicle electric back door ECU controller and control method

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of vehicle ECUs, in particular to a vehicle electric back door ECU controller and a control method. Background technique [0002] ECU (Electronic Control Unit) electronic control unit, also known as "driving computer", "vehicle computer" and so on. It is widely used in the automotive field. The ECU includes a casing and internal components, and its internal components are mainly composed of circuit boards and coils. [0003] With the continuous popularization of domestic cars in our country, consumers have put forward higher requirements for driving comfort, safety and operation convenience. The opening and closing of the back door of the car is traditionally operated manually by the driver and occupant after unlocking. , is achieved through pneumatic struts, most of the existing domestic cars generally use pneumatic struts, only higher-spec cars use electric back doors, which are realized through electric...

AI Technical Summary

Problems solved by technology

[0007] The traditional ECU shell is divided into an upper cover and a lower cover. For example, the shell mentioned in the Chinese patent (authorization number: CN201621072900.8) name: "ECU shell with sealing function" needs to be assembled through the PCBA board (the circuit of the welding components) Board) into the lower cover, close the upper cover and fix it with locking screws. When locking, ensure that the screw holes of the upper cover and the lower cover are closely matched with the screw holes on the PCBA, otherwise the screws are easily misplaced and the PCBA board will be damaged.

Moreover, the process of assembling the traditional ECU shell is complicated, the work efficiency is low, and screw fixing is required to increase the product cost

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