Vehicle state assessment and fault early warning method based on vehicle condition data flow
A technology of fault warning and data flow, which is applied in the direction of instruments, electrical testing/monitoring, control/regulation systems, etc.
Inactive Publication Date: 2019-01-18
卢照敢
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[0004] The present invention proposes a quantitative evaluation method of vehicle state based on vehicle condition data flow to solve the problem of numerical evaluation of vehicle condition detection report
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[0023] Vehicle condition inspection report generation process
[0024] For a vehicle condition detection, the vehicle condition detection report generating process of the present invention, such as figure 1 As shown, this process can be used to generate a detection report based on the OBD device detection data stream, which integrates fault mode extraction, fault early warning, and numerical vehicle condition evaluation. Through the vehicle condition inspection report, car users without car maintenance can directly know the vehicle condition and possible failures of the vehicle, so that they can go for maintenance and inspection in time. The whole process consists of the following steps:
[0025] (1) Through the vehicle OBD detection equipment, perform vehicle detection and obtain vehicle condition data stream.
[0026] (2) According to the vehicle condition data flow and the value range of the OBD detection index under normal vehicle conditions, calculate the vehicle condit...
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In the field of vehicle maintenance, vehicle OBD online fault diagnosis equipment is widely accepted fault diagnosis equipment. The vehicle service technician can detect all built-in sensors of a vehicle to obtain a vehicle condition detection report by this equipment, and a vehicle faults are analyzed according to the sensor data of the vehicle condition detection report. The invention disclosesa method for quantitatively evaluating a vehicle state according to a vehicle condition data flow of the vehicle condition detection report, so as to solve a numerical evaluation problem of the vehicle condition detection report. The method consists of the following four parts: (1) a definition of a vehicle condition score; (2) a definition of a vehicle fault mode; (3) a vehicle fault early warning method; and (4) a generation process of the vehicle condition detection report. The vehicle owner without the experience of being a vehicle maintenance technician can clearly understand the vehiclecondition through the quantitative vehicle condition detection report, and can timely carry out professional vehicle detection and maintenance, thereby avoiding the vehicle fault during the driving and reducing vehicle traffic accidents.
Description
technical field [0001] The invention proposes a vehicle state quantitative evaluation method based on the vehicle condition data flow to solve the numerical evaluation problem of the vehicle condition detection report. Background technique [0002] In the field of automobile maintenance, automobile OBD online fault diagnosis equipment is a widely accepted fault diagnosis equipment. Through this device, the vehicle maintenance technician can detect all the built-in sensors of the car, obtain the vehicle condition detection report of the vehicle, and analyze the vehicle failure according to the sensor data in the vehicle condition detection report. The vehicle condition inspection report is a snapshot of the current state of the vehicle, which can only be reflected by the personal experience of the vehicle maintenance technician. If a car fault code is detected in the vehicle condition inspection report, the car maintenance technician can check and repair the location indicat...
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Login to View More IPC IPC(8): G05B23/02
CPCG05B23/0243G05B2219/24065
Inventor 卢照敢
Owner 卢照敢