Communication system of braking fluid filling machine and automobile

Abstract

The invention discloses a communication system of a braking fluid filling machine and an automobile. The communication system comprises a micro-processing unit, a power supply conversion module, a flash memory module, a program writing module, a crystal oscillator module, an interface conversion module, a CAN (Controller Area Network) bus module, a K wire module and an interface module, wherein the micro-processing unit is provided with a GPIO (General Purpose Input / Output) interface, an SPI (Serial Peripheral Interface), a first UART (Universal Asynchronous Receiver / Transmitter) interface, a second UART interface, CAN interfaces and a K wire interface; the first SPI is connected with the flash memory module; the first UART interface is connected with the interface conversion module; the second UART interface is connected with the interface module; the first CAN interface communicates with an automobile ABS (Anti-lock Braking System) through the CAN bus module; the K wire interface communicates with the automobile ABS through the K wire module; and the communication system is used for old automobile types. When a novel automobile ABS is updated, the communication system of the braking fluid filling machine and the automobile needs to be correspondingly adjusted, and needs to be adjusted abroad by high payment in previous years, and a whole process has a long period; and the problems are solved by the communication system provided by the invention.

Description

technical field [0001] The invention relates to a communication system, in particular to a communication system between a brake fluid filling machine and an automobile. Background technique [0002] The brake fluid filling machine is a supporting equipment on the automobile assembly line, which completes the filling of the automobile brake system oil, so that the automobile brake system can meet the performance requirements of the process. For cars with ABS (Anti-lock Brake System), during the process of brake fluid filling, the filling machine uses the built-in ABS (Anti-lock Brake System) communication controller to communicate with the HCU (Hydraulic Control Unit) of the car. Electronic communication, with PLC (programmable logic controller) controlled vacuum filling process, controls the opening and closing of ABS (anti-lock braking system) related solenoid valves and motors, and completes the brake fluid pipeline and ABS (anti-lock braking system) Braking system) The e...

AI Technical Summary

Problems solved by technology

At present, it is monopolized by foreign manufacturers. Every time a new model is added and the anti-lock brake system is adjusted, the manufacturer needs to change the program, which requires high fees and takes a long time.

Images