发明名称 |
Air-fuel ratio controlling system |
摘要 |
An air-fuel ratio controlling system for an internal combustion engine including a control circuit for controlling, in accordance with a detected air-fuel ratio, the operation of a drive motor of a control valve mounted in an additional air supply passage. The control circuit includes a timing pulse generator for generating timing pulses synchronized with a running speed of the engine and thus the control valve is intermittently rotated by a predetermined amount in response to the timing pulses. By increasing the frequency of the timing pulses during the periods of rapid acceleration and deceleration, a response to the change in the engine speed is further improved.
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申请公布号 |
US4140093(A) |
申请公布日期 |
1979.02.20 |
申请号 |
US19770792768 |
申请日期 |
1977.05.02 |
申请人 |
NIPPON SOKEN, INC. |
发明人 |
HATTORI, TADASHI;TAKATA, AKIRA;FUKUDA, TAMOTSU;NAKASE, TAKAMICHI;TOYOTA JIDOSHA KOGYO KABUSHIKI KAISHA |
分类号 |
F02B1/04;F02D41/14;(IPC1-7):F02D1/04;F02D35/00;F02D33/00;F02B15/00 |
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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