发明授权
US4214558A Fuel control method and system with a circuit for operating valve in
effective working range
失效
燃油控制方法和系统,具有在有效工作范围内操作阀的回路
- 专利标题: Fuel control method and system with a circuit for operating valve in effective working range
- 专利标题(中): 燃油控制方法和系统,具有在有效工作范围内操作阀的回路
-
申请号: US836014申请日: 1977-09-23
-
公开(公告)号: US4214558A公开(公告)日: 1980-07-29
- 发明人: Tetsuji Nishioka , Masaharu Asano , Makoto Anzai , Akio Hosaka
- 申请人: Tetsuji Nishioka , Masaharu Asano , Makoto Anzai , Akio Hosaka
- 申请人地址: JPX Yokohama
- 专利权人: Nissan Motor Company, Limited
- 当前专利权人: Nissan Motor Company, Limited
- 当前专利权人地址: JPX Yokohama
- 优先权: JPX51-113613 19760924
- 主分类号: F02D41/14
- IPC分类号: F02D41/14 ; F02M7/24 ; F02B3/00
摘要:
A fuel control system for an internal combustion engine includes an exhaust gas sensor from which feedback control signal is derived, a limiter for limiting the maximum and minimum voltages of the control signal and a triangular wave generator. The triangular wave has a constant amplitude peak of which the maximum value is slightly greater than the maximum voltage of the control signal and the minimum value is slightly below the minimum voltage of the control signal. A comparator is provided to produce an output at one of two binary levels depending upon whether the control signal is above or below the instantaneous value of the triangular wave. The output from the comparator is a train of pulses whose duty cycle ranges from predetermined minimum to maximum values which correspond respectively to the minimum open and closure times of air-fuel mixing control valves.
公开/授权文献
- US5280766A Subsea pump system 公开/授权日:1994-01-25