Multifunctional motor vehicle detecting instrument and detecting method thereof

The invention provides a multifunctional motor vehicle detecting instrument and a detecting method thereof, and belongs to vehicle-mounted fault diagnosis systems in the automobile electronic technology. The multifunctional motor vehicle detecting instrument is mainly composed of two parts. The first part is wheel posture collectors, each wheel posture collector is mainly composed of an MEMS micromechanics inertia navigation module, a microprocessor, a wireless Bluetooth sending module, a special clamp and a wheel in a fixing mode, and each wheel is provided with one wheel posture collector. The second part is a portable main machine instrument which is mainly composed of a wireless Bluetooth wheel signal receiving module, a vehicle-mounted posture sensor, a pedal force collecting module, a microprocessor, a GPS communication module, a 3G/GPRS communication module, a displayer, a printer, a vehicle-mounted power source and a vehicle-mounted power charger. The obvious advantages of safety, accuracy, convenience and high efficiency of the multifunctional motor vehicle detecting instrument are achieved in the using process, and important significance is achieved on the aspects of maintaining road traffic orders and preventing and reducing traffic accidents.