发明授权
- 专利标题: Method of reducing fuel consumption rate in internal combustion engines
- 专利标题(中): 降低内燃机燃油消耗率的方法
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申请号: US136331申请日: 1980-04-01
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公开(公告)号: US4322800A公开(公告)日: 1982-03-30
- 发明人: Takashi Hisegawa , Osamu Ito , Nobuhito Hobo , Yoshihiko Tsuzuki , Yutaka Suzuki , Mikio Kumano , Masaharu Sumiyoshi
- 申请人: Takashi Hisegawa , Osamu Ito , Nobuhito Hobo , Yoshihiko Tsuzuki , Yutaka Suzuki , Mikio Kumano , Masaharu Sumiyoshi
- 申请人地址: JPX Kariya JPX Toyota
- 专利权人: Nippondenso Co., Ltd.,Toyota Jidosha Kogyo Kabushiki Kaisha
- 当前专利权人: Nippondenso Co., Ltd.,Toyota Jidosha Kogyo Kabushiki Kaisha
- 当前专利权人地址: JPX Kariya JPX Toyota
- 优先权: JPX54-40730 19790404
- 主分类号: F02D41/34
- IPC分类号: F02D41/34 ; F02D21/08 ; F02D45/00 ; F02P5/15 ; F02P5/08 ; F02B5/02
摘要:
An optimum control method for internal combustion engines uses the values of an engine control variable, such as engine timing, which are arranged in a map and stored in a memory. During normal operation, the engine is operated in accordance with one of the mapped engine control variable values related to engine operating conditions. During a fuel consumption minimization operation, the mapped engine control variable value is changed by an incremented amount to operate the engine therewith, and the mapped engine control variable value is replaced by the changed engine control variable value, if it is detected that the change by the incremented amount is in a direction to reduce the fuel consumption rate of the engine. This optimum engine control method can compensate for changes in the characteristics of engines caused during the manufacture or caused by changes over time during their operation, thereby ensuring the operation of an engine at a minimum rate of fuel consumption.
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