Explore Auto OBD function (2)
Today we will talk about auto obd funtion (2)
What’s the OBD?
OBD is “on-board diagnostic system”, also known as on-board diagnostics. It’s a standard specification car self diagnostic system by the American Society of Automotive Engineers (SAE) proposed. Initially the government used to monitor vehicle emissions and enforceable, OBD device monitor multiple systems and components, including engines, catalytic converter, particulate trap, oxygen sensors, emission control systems, fuel systems, GER, etc.
OBD works principle
OBD coupled to ECU(the Electronic Control Unit) through a variety of information about emissions, , ECU with the detection and analysis functions about the emission-related fault. When emissions failure, ECU recorded faults and associated code, and through the warning light to inform the driver. ECU ensure access to errorinformation and treatment via standard data interface,
OBD monitoring purpose was to Find faults before become a high-emission standards vehicle
OBD development course
OBD technology originated in the 1980s United States, EuropeUnion and Japan introduce the OBD technology after 2000s ,after2004 years,the car OBD2 technologies from developed countries to enter the third stage, the OBD2 monitor goals is to found car problem before the car become a high emissions standards
July 1, 2007 In order to monitor the car emission problem and found the car falut problem. China Government requires all vehicles at the factory installation of standard data interface (OBDII connector), China import OBD technology that the use of the relevant provisions of the European EOBD, implementation standard is the Euro III + OBD (Euro III emission standards are not equal OBD).
OBD product forms
There are two products based on OBD2 Interface forms, one is connected to the vehicle OBD interface through a dedicated data line. The data is read out and then displayed on the display at matching screen, This situation is equal to its own installation of a trip computer display. We usually may have been inserted in the OBD Interface by connecting lines and fixed display, the owner can select the data to be displayed on their own.
Another is that the more popular of similar equipment Lubao app- wireless OBD2 interface adapter + smartphone client software. This mobile terminal cooperating with the OBD port of the reader is similar to a single-chip with wireless communication module
the data to read the OBD transmitted to the smart phone side via Bluetooth or Wifi interface, and then through the mobile phone side software that was presented to the user.
We’re finished our conversation for today ,and next time we will talk About Auto OBD Running technology “Explore Auto OBDII function (3)”
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