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61. 发明专利

JPH01237339A FUEL INJECTOR OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH01237339A
公开(公告)日：1989-09-21
申请号：JP6022988
申请日：1988-03-16
申请人： TOYOTA MOTOR CORP
发明人： TAKIMOTO TOSHIYUKI , KOTANI TAKESHI , YASUDA AKIO , MATSUSHITA SOICHI
IPC分类号： F02D41/04 , F02D41/00 , F02D41/14 , F02D41/30 , F02D41/36
摘要： PURPOSE:To aim at expansion of critical lean combustion range so as to improve fuel consumption by increasing an amount of fuel injection in the cylinders showing a larger amount of torque fluctuation, in an internal combustion engine in which fuel injection is applied simultaneously to both cylinders synchronously with each of two cylinders' intake strokes taking place alternately. CONSTITUTION:In a 4-cylinder engine in which fuel injection is applied simultaneously to two cylinders by simultaneously opening respective fuel injection valves 28 of the first and fourth cylinders and those of the second and third cylinders by means of a first drive circuit 44 and a second drive circuit 46 respectively, a controller 40 for controlling respective drive circuits 44, 46 is provided with a means 1 which applies fuel injection simultaneously to two cylinders synchronously with each of two cylinders' intake strokes taking place alternately. In addition, a means 2 for detecting the amount of torque fluctuation of each cylinder is provided. Further, a means 3 is also provided for increasing an amount of fue injection to a pair of cylinders showing a larger amount of torque fluctuation detected by this detecting means 2 and decreasing amount of fuel injection to the other pair of cylinders.

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