Microcomputer bus control system and diagnosis method for electric vehicle

Abstract

The invention discloses an electric car microcomputer bus control system and a diagnosis method. The system comprises a microcomputer bus controller, an intelligent handset, diagnosis equipment, a liquid crystal instrument, an information acquisition circuit, an RS485 communication circuit, an integral vehicle light circuit, an integral vehicle power source control circuit and a power source circuit, wherein the microcomputer bus controller is connected with the intelligent handset through a wireless signal, integral vehicle state parameters are acquired by the microcomputer bus controller through the information acquisition circuit to realize control on integral vehicle equipment, the RS485 communication circuit is connected with the microcomputer bus controller and a motor controller to realize control on the electric car motor, the diagnosis equipment is further connected with the microcomputer bus controller through the RS485 communication circuit to accomplish the fault diagnosis function for the electric car, and functions of unlocking, locking, light control and fault display of the electric car can be realized by the intelligent handset through the wireless signal. The electric car microcomputer bus control system is suitable for traffic tools such as an electric bicycle or an electric tricycle.

Description

technical field [0001] The invention relates to the field of electric vehicle control and diagnosis, in particular to a microcomputer bus control system and a diagnosis method for an electric vehicle. Background technique [0002] With the expansion of urban extension, the demand for traffic motorization continues to increase, and the convenience of transportation affects people's activity space. Battery-driven car has become a kind of ideal and widely popular personal vehicle of the bicycle vehicle user day by day due to advantages such as lightness, quickness, and price. [0003] With the rapid development and wide application of information technology and network technology, people have higher and higher requirements for the intelligence, networking, informatization and integration of electric vehicles. This makes engineers encounter more challenges in the development and design: [0004] 1. The mechanical and electrical structure of electric vehicles is becoming more a...

AI Technical Summary

Problems solved by technology

[0009] The present invention mainly solves the problems existing in the prior art, such as single control mode, complex cables, cumbersome lines, many branches, large line voltage drop, poor vehicle protection performance, and potential dangers, which cannot realize electric vehicle and For technical issues such as the interaction between smart phones and diagnostic systems, provide a microcomputer bus control for electric vehicles with simple lines, good vehicle protection performance, and high safety, which can realize interaction between electric vehicles, smart phones, and diagnostic systems system, and discloses a diagnostic method for electric vehicle microcomputer bus control system with high accuracy and fast detection speed

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