发明授权
US4203394A Closed-loop emission control apparatus for internal combustion engine
with a circuit for generating offset voltage that cancels error
introduced during use
失效
具有用于产生抵消在使用期间引入的误差的偏移电压的电路的内燃机的闭环排放控制装置
- 专利标题： Closed-loop emission control apparatus for internal combustion engine with a circuit for generating offset voltage that cancels error introduced during use
- 专利标题（中）： 具有用于产生抵消在使用期间引入的误差的偏移电压的电路的内燃机的闭环排放控制装置
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申请号： US769871申请日： 1977-02-11
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公开(公告)号： US4203394A公开(公告)日： 1980-05-20
- 发明人: Shigeo Aono , Akio Hosaka
- 申请人： Shigeo Aono , 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： JPX51-13250 19760212
- 主分类号： F02D41/14
- IPC分类号： F02D41/14 ; F02B3/00
摘要：
A closed-loop emission control apparatus for internal combustion engines includes an exhaust composition sensor disposed at the upstream side of a catalytic converter which converts the noxious exhaust components into harmless products at the highest efficiency when the air-fuel ratio is controlled at a value in the vicinity of stoichiometry in accordance with a control signal derived from the sensed concentration of the exhaust composition. The output from the exhaust composition sensor is utilized to generate an offset voltage by averaging the instantaneous values of the sensed concentration, the offset voltage being combined with the control signal to cancel an error introduced thereinto during use of the apparatus.
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