OBD(On-Board Diagnost) introduction

by Kenny Lee Attention electronics
OBD is English On Board Diagnostics, the abbreviation of-the Chinese translation for "the automatic diagnosis system".
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From the 1980 s, America, Japan, Europe and other major automobile manufacturers start in its production of cars equipped with OBD efi, initial OBD no self-check function. More advanced than OBD OBD- in the mid 1990 s, American automobile engineers produce association (SAE) has developed a set of standards, and required the automobile manufacturing enterprise in accordance with the standard of OBD provide uniform diagnosis model of the 20 th century, in late 90, the car into the north American market according to the new standard OBD set.
OBD-with all of the car before the diagnosis system is different have strict emissions targeted, its essence is to monitor the performance of vehicle emissions. When the automobile emissions of carbon monoxide (CO), hydrocarbons (HC), nitrogen oxide (NOx) or fuel evaporation pollution load more than a set standard, GuZhangDeng will light up the alarm.
Although OBD- car emissions of monitoring is very effective, but drivers accept not accept warning all by "conscious". Therefore, OBD-more than advanced OBD- produced. The main purpose is to OBD-car testing, maintenance and management are one, to meet the requirements of environment protection. OBD- system respectively into the engine, transmission, ABS system (computer) of ECU read fault code and other relevant data and the small car communications systems, such as GPS navigation system or wireless communication will the identity of a vehicle code, fault code and location information such as automatic notice management departments, administrative departments according to the vehicle emission problems to the level of instruction, including where to go to repair advice, solve the problems such as the time limit emissions, but also on the limit of the offender's beyond a vehicle to exclude instructions. Therefore, OBD- system can not only of vehicle emission problems to drivers warned, but also to punish offenders.
According to information, domestic joint venture car factory in recent years the introduction of some models in Europe has production sales, their itself OBD and achieve equipped with the European champions IV standard, III even after domestic tend to minus or close OBD, on the one hand, and managing cost, also to avoid in the products quality standard of OBD and causes trouble for alarm.
OBD, is not only related to vehicle technology itself, but will also be oil and related conditions, but also for driver put forward higher request to use. OBD, car is a system of the revolution.

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About Kenny Lee Advanced     Attention electronics

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Joined APSense since, April 26th, 2011, From shenzhen, China.

Created on Jul 7th 2011 21:54. Viewed 1,770 times.


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