Vehicle micro diagnosis device and vehicle diagnosis method

Abstract

The invention discloses a vehicle micro diagnosis device which is connected with vehicle general OBD interfaces, so as to communicate with vehicle computers. The vehicle micro diagnosis device comprises a detection module, a monitor module, a storage module and a feedback module, wherein the detection module is used for determining the state of a vehicle according to the detected pressure drop of the vehicle; the monitor module is used for obtaining the vehicle data, which is corresponded with the state of the vehicle, after the detection module determines the state of the vehicle; the storage module is used for analyzing and processing the vehicle data when the vehicle data obtained by the monitor module is sent to the storage module; the feedback module is used for feedback the analyzed and processed vehicle data to the vehicle computer and sending corresponding control command, so as to realize corresponding controlling of vehicle electrical appliance.

Description

technical field [0001] The invention relates to the field of automobile control; in particular, it relates to an automobile micro-diagnosis device and an automobile diagnosis method using the automobile micro-diagnosis device. Background technique [0002] Before the 1960s, the internal gasoline injection system and other control functions of automobiles were realized by means of mechanical devices, which were complex in structure and expensive, and were mostly used in luxury cars and racing cars. After the 1960s, due to the rapid development of electronic technology and the influence of emission regulations, the electronically controlled gasoline injection (EFI) technology and control system have been further developed. The car is no longer only controlled by machinery, but can be automatically controlled by the car computer (ECU) inside the car. The various electrical components on the car are connected to the car control computer (ECU) by various sensors. Therefore, the ...

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Problems solved by technology

[0024] Vehicle safety is the most concerned topic for every car owner. However, for the general public, most of the vehicles purchased are family cars with a price of around 100,000. above is impossible

And these functions, for the vehicles that have already been purchased, the car manufacturers cannot upgrade the vehicles to realize such functions

[0025] For many car owners, the demand for this function is very urgent, and they all hope that their cars are equipped with such a function, because this function is very important for the safety of the vehicle. For example, when the vehicle is waiting for a red light, if the door is unlocked , outsiders can open the door at will to rob the items in the vehicle, thus causing damage to property and personal safety.

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