德尔福汽车发动机电脑技术解析 - [汽车电脑](国外英文资料).doc

德尔福汽车发动机电脑技术解析 - [汽车电脑](国外英文资料) Delphi engine computer technology parsed - [auto computer] Copyright notice: please indicate the original source and author information and this statement in the form of hyperlinks /logshtml Delphi engine computer technical analysis   Delphi company produces the series of car computer (ECU), to provide more than domestic automakers, applicable models mainly include: jinbei sea lions multi-point injection, the Great Wall, faw guideposts, sino-italian songhua river, the banner of the big di, etc. Here is a typical breakdown of the Delphi computer.   a. Ignition and fuel injection circuit resolution:   ignition/fuel injection control. Crankshaft sensor signal by computer and B14 A16 the feet enter 23 feet and 24 tofeet, after the internal wave treatment by 15,feet to the CPU input engine speed signal, CPU5 feet and direct control injector drive transistor 2248 10 feet. The ignition signal is delivered from the CPUs 27 feet and 37 feet, to the 6 feet and 7 feet of and the converted ignition pulse signal is sent to the ignition amplifier by2 feet and 4 feet. The primary coil of ignition coil is controlled and the secondary induces high voltage. This computer with other auto parts, computers, but Delphi the internal components of a computer by the serial number of the unified, element pin definition and element internal drawings unfindable, it caused great inconvenience to maintenance. More common faults are: power protection varistor breakdown, lead to the computer power supply pins A6 without power input, also accompanied by internal damage, 66285 cannot provide CPU power on reset signal, the computer has no oil ignition signal output. The above failures should be examined with a focus on 66285 (PLCC 68) and RV1 pressure sensitive resistance 1135. The main cause of this phenomenon is that the generator is too much or is not stable.     faw Volkswagen jetta 01 m automat