Four-wheel electric vehicle fault diagnosis device

Abstract

The invention relates to the technical field of electric vehicles, in particular to a four-wheel electric vehicle fault diagnosis device which comprises a shell, a display screen is fixedly installed on one side of the shell, a power supply main switch is fixedly connected below the display screen, two knobs are fixedly installed below the power supply main switch, one knob is a DNR adjusting knob, and the other knob is a vehicle speed adjusting knob. The bottom of the shell is fixedly connected with two detection lines, and the tail end of each detection line is fixedly connected with a diagnosis plug. The four-wheel electric vehicle fault diagnosis device not only can diagnose faults, but also can perform emergency driving operation, and is simple to operate, reliable in performance, convenient and practical.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a fault diagnostic device for four-wheel electric vehicles. Background technique [0002] Vehicle technology is changing with each passing day. With the development of electronic technology, modern automobiles are developing from the original mechanical manual control to comprehensive electronic control. The functional modules of the vehicle are being followed up with the improvement of the overall vehicle technology. Vehicle fault diagnosis technology is also in progress. The main functions of current non-vehicle vehicle fault diagnostic devices are: reading fault codes, clearing fault codes, fully displaying vehicle conditions, improving driving habits, reducing fuel consumption, fault alarms, overspeed alarms, and maintenance reminders. The non-vehicle fault diagnosis device can quickly read the faults in the electronic control system of the car, and display the fau...

AI Technical Summary

Problems solved by technology

The non-vehicle fault diagnostic device can quickly read the faults in the electronic control system of the car, and display the fault information through the LCD screen, quickly find out the location and cause of the fault, and can also automatically and comprehensively detect the test points of different systems of the car , but due to the complex structure and high price of the equipment, it is only suitable for automobile maintenance sites or automobile maintenance workshops

Compared with the non-vehicle fault diagnosis device, the function of the on-board fault diagnosis device is less, and the practicability is not strong.

The above-mentioned vehicle fault diagnosis devices are all developed for automobiles, and are not suitable for low-speed electric vehicles; in addition, the current vehicle fault diagnosis devices on the market lack the vehicle emergency rescue function

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