公开(公告)号：USRE33027E

公开(公告)日：1989-08-22

申请号：US178903

申请日：1988-04-07

申请人： Yoshiaki Danno ,  Akira Takahashi ,  Kazumasa Iida ,  Toru Hashimoto ,  Yasukuki Okamoto ,  Kenzo Nakao

发明人： Yoshiaki Danno ,  Akira Takahashi ,  Kazumasa Iida ,  Toru Hashimoto ,  Yasukuki Okamoto ,  Kenzo Nakao

IPC分类号： F02B1/04 ,  F02D31/00 ,  F02D41/24

CPC分类号： F02D31/004 ,  F02D41/2451 ,  F02D41/248 ,  F02B1/04 ,  F02D2011/102 ,  F02D2200/501

摘要： An engine idling speed controlling system including, for controlling the throttle valve opening appropriately, a first idling speed control means for comparing a detected signal provided from an engine speed sensor during idle running with a target engine idling speed and providing a first idling control signal, a correction value learning means for learning a long-time correction value or a just-previous correction value on the basis of a cumulative value of the newest value of a detected signal provided from a throttle position sensor during operation of the first idling speed control means, a second idling speed control means for comparing a detected signal provided from the throttle position sensor during idle running with a target throttle opening, receiving the long-time correction value and the just-previous correction value and producing a second idling control signal, and means for controlling the idle opening of the throttle valve in accordance with one of the first and second idling control signals.