Electric-vehicle electrical wiring, instrument, controller and big wire and electric vehicle

Abstract

The invention discloses an electric vehicle electrical wiring, instrument, controller and big wire and an electric vehicle. Firstly, the instrument is upgraded to an intelligent electric appliance component, an intelligent chip mcu is introduced on a circuit board of the instrument, and an external communication interface is expanded. A conventional motor controller also extends an external communication interface. Communication is accomplished between the instrument and the controller, and the instrument and the controller exchange data according to an agreed communication protocol. Relevantelectric appliances in the vicinity of the instrument are directly inserted into sockets of an instrument circuit board, and the data are sent to the controller through the communication interface after being collected and processed by the mcu. Thus, one or two communication lines replace a plurality of traditional direct-connection wires to the controller, so that the purpose of saving wires is achieved. The signal output by the controller is also transmitted to the instrument through the communication interface, and the signal is displayed by an led and an lcd, or is broadcasted by voice, sothat the vehicle speed gear operation and fault indication line out of the controller are saved. In this way, the whole vehicle wiring is greatly simplified, the cost is reduced, the reliability is improved, and many problems of a traditional wiring manner of the electric vehicle are solved.

Description

technical field [0001] In the field of electronic technology, specifically "electric vehicle electrical appliances", including instruments, controllers, and large wires. Background technique [0002] For the convenience of describing the present invention, use the following abbreviations: [0003] "Electric vehicle electrical appliances" refers to all electrical components through which electric current passes, including front brakes, rear brakes, reversing, handlebars or pedal accelerators, power sensors, instruments, controllers, large wires, various lamps, electric Door lock, anti-theft device, reversing horn, driving horn, voice fault prompter, remote anti-theft device, mobile phone control module, GPS module, wiper, car door, air conditioner, audio, voice prompter, etc.; [0004] "Large wire" refers to the wire harness connected between electric vehicle electrical appliances. They are usually bundled together and connected to various electrical components, and some are...

AI Technical Summary

Problems solved by technology

[0024] 1) High failure rate and low reliability

Because if there is a problem with one plug or one wire, it will cause the whole vehicle to malfunction;

[0025] 2) The labor cost is high during assembly line production in the factory, because there are too many system plugs, which wastes time;

[0026] 3) It is easy to insert wrongly when the factory assembly line is produced, because there are too many plugs, and many plugs have the same or similar shape and color;

[0027] 4) The maintenance of dealers and car repair shops is complicated because there are too many wire ends and plugs;

[0028] 5) The compatibility of the large wires of electric vehicles is poor, because every time a function is added or modified, the plug or wire head or the large wire of the system must be adjusted accordingly;

[0029] 6) The risk of fire is high, because there are too many wire ends, and the wire ends are easily exposed to cause short circuit;

[0030] 7) The cost of materials is high, because there are many plugs and a large amount of wires

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