发明名称 |
Air flow metering apparatus for internal combustion engines. |
摘要 |
<p>Disclosed is an air flow metering apparatus for an internal combustion engine of the type in which heating current supply to a hot-wire air flow meter (1) for detection of engine suction air flow rate is made intermittent in synchronism with the rotation of the engine so as to directly generate a flow rate detection signal in the form of a pulse width signal. The apparatus comprises a computing means (20b) for generating a correction data by using variables including the rotation period of the engine and the opening rate of a suction air flow control means, whereby an air flow data obtained from the pulse width signal is corrected on the basis of the correction data.</p> |
申请公布号 |
EP0347218(A2) |
申请公布日期 |
1989.12.20 |
申请号 |
EP19890306063 |
申请日期 |
1989.06.15 |
申请人 |
HITACHI, LTD. |
发明人 |
NISHIMURA, YUTAKA;OHSUGA, MINORU;OHYAMA, YOSHISHIGE |
分类号 |
F02B1/04;F02B75/02;F02D41/18;G01F1/698 |
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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