Automobile electric tailgate ecu control board

Abstract

The invention discloses an ECU control main board for an electric tailgate of an automobile, which comprises a main board, a microprocessor arranged on the main board, an EEPROM circuit module, a high-speed CAN transceiver, a first bridge motor drive module for driving an electric pole motor, and a power supply Power supply module, power supply reverse connection protection circuit module, high-end voltage drive module for driving tailgate unlocking motor, second bridge motor drive module for driving tailgate self-priming motor, debug download interface and data status monitoring interface for plugging in external devices ; The input end of the high-speed CAN transceiver is electrically connected to the output end of the signal acquisition module, and the signal acquisition module is electrically connected to the Hall sensor of the electric pole motor, the Hall sensor of the tailgate unlocking motor, and the Hall sensor of the tailgate self-priming motor. The output end of the CAN transceiver is electrically connected with the microprocessor. The ECU control board of the present invention has stable performance, convenient program upgrade, low maintenance cost, hierarchical control of power supply, stable power supply, reverse connection protection of power supply, high reliability and low failure rate.

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 ...

AI Technical Summary

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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