发明名称 |
EMISSION CONTROL APPARATUS WITH REDUCED HANGOVER TIME TO SWITCH FROM OPEN-TO CLOSED-LOOP CONTROL MODES |
摘要 |
<p>A closed-loop emission control apparatus for internal combustion engines includes exhaust composition sensor for feedback control of the air-fuel mixture. When the temperature in the exhaust passage is lower than the operating temperature of the sensor, control is switched to an open-loop mode. The feedback control signal is fluctuated above and below a predetermined DC bias at periodic intervals during the open-loop mode to switch the control to the closed-loop mode in a minimum transition time as soon as the sensor's temperature condition warrants feedback control.</p> |
申请公布号 |
CA1106034(A) |
申请公布日期 |
1981.07.28 |
申请号 |
CA19770271553 |
申请日期 |
1977.02.11 |
申请人 |
NISSAN MOTOR COMPANY, LIMITED |
发明人 |
ASANO, MASAHARU;AONO, SHIGEO;HOSAKA, AKIO;OCHIAI, KOKICHI;YAMANE, MICHIYOSHI |
分类号 |
F02D41/14;(IPC1-7):02B75/00 |
主分类号 |
F02D41/14 |
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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