发明名称 |
Car exhaust gas purification device controlling circuit |
摘要 |
A car exhaust gas purification device controlling circuit wherein a deviation between an output of an exhaust gas sensor and a set value is converted into a time-width signal and a proportional electromagnetic valve is controlled by an integrated output of the time-width signal to control the air-fuel ratio around a theoretical air-fuel ratio, whereby an offset of air-fuel ratio due to hysteresis of such as the proportional electromagnetic valve used for controlling the air-fuel ratio is eliminated.
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申请公布号 |
US4150643(A) |
申请公布日期 |
1979.04.24 |
申请号 |
US19770756715 |
申请日期 |
1977.01.04 |
申请人 |
HITACHI LTD |
发明人 |
NISHIMIYA, TORAZO;SAKAMOTO, SHINICHI;SASAYAMA, TAKAO |
分类号 |
F02B1/04;F02D41/14;F02M7/24;(IPC1-7):F02M7/24 |
主分类号 |
F02B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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