Automobile electric tail door ECU control main board

Abstract

The invention discloses an automobile electric tail door ECU control main board. The automobile electric tail door ECU control main board comprises a main board body, a microprocessor arranged on themain board, an EEPROM circuit module, a high-speed CAN transceiver, a first bridge type motor drive module driving a supporting rod motor, a power supply power module, a power source reverse connection protection circuit module, a high-end voltage drive module driving a tail door unlocking motor, a second bridge type motor drive module driving a tail door self-suction motor, a debugging downloading connector facilitating peripheral equipment inserting and connecting, and a data state monitoring connector. The input end of the high-speed CAN transceiver is electrically connected with the outputend of a signal collection module. The signal collection module is electrically connected with an electric supporting rod motor Hall sensor, a tail door unlocking motor Hall sensor and a tail door self-suction motor Hall sensor. The output end of the high-speed CAN transceiver is electrically connected with the microprocessor. The ECU control main board is stable in performance, program upgradingis convenient, the maintaining cost is low, power source step control is achieved, power supply is stable, power source reverse connection protection is achieved, reliability is high, and the fault rate is low.

Description

technical field [0001] The invention relates to the technical field of automobile tailgate control, in particular to an automobile electric tailgate ECU control main board. Background technique [0002] Electronic Control Unit, referred to as ECU, is a micro control system, also known as "vehicle computer". The micro-control system is composed of functional modules such as a main board, a microprocessor, and a power supply module. In modern cars, the electric tailgate function has become a highlight of high-end and high-end vehicles. The tailgate of some vehicles has a mechanical structure, and the tailgate is higher than the ground when it is opened. It is difficult for female car owners and some short male car owners to open and close the tailgate, and some vehicles have a relatively large tailgate torque. Also quite strenuous. Because of the convenience, atmosphere, and large opening range of the electric tailgate, it is very popular among car owners. [0003] In the ...

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Problems solved by technology

[0006] 1. The motherboard of the above-mentioned electric tailgate control system lacks a debugging download interface and a data status monitoring interface. The motherboard is faulty and difficult to repair. The cost of replacing the motherboard is high. It is difficult to upgrade the motherboard later and the maintenance cost is high;

[0007] 2. The main board of the above-mentioned electric tailgate control system lacks a power supply module with two power supplies, a single mode of power supply, the motor drive module and the control circuit module share the same power supply, the power supply cannot be controlled hierarchically, the power supply efficiency is low, and the voltage or current is large. The frequent on-off of the peripheral equipment can easily cause overvoltage or overcurrent of the peripheral equipment, thereby damaging the peripheral electronic equipment, and there is no power supply reverse connection protection circuit module. Once the power supply is reversed, it is easy to cause damage to the main board or devastating damage to important components;

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