发明名称 |
Intake air control system of internal combustion engine |
摘要 |
<p>An intake air control system is arranged in an engine. The engine has an air intake passage, a throttle valve installed in the air intake passage and an intake valve for selectively opening and closing a communication between the intake passage and a cylinder. The control system comprises a target intake passage pressure setting unit which sets a target pressure in an intake passage of the engine in accordance with an operating condition of the engine; a target intake air amount setting unit which sets a target intake air amount of the engine in accordance with the operating condition of the engine; a target throttle open degree setting unit which sets a target open degree of the throttle valve of the engine in accordance with both the target pressure in the intake passage and the target intake air amount of the engine; a throttle valve drive unit which drives the throttle valve in accordance with the target open degree of the throttle valve; an intake passage pressure detecting unit which detects an existing pressure in the intake passage; a target intake valve OPEN/CLOSE timing setting unit which sets a target OPEN/CLOSE timing of the intake valve in accordance with both the detected existing pressure in the intake passage and the target intake air amount; and an intake valve drive unit which drives the intake valve in accordance with the target OPEN/CLOSE timing of the intake valve. <IMAGE></p> |
申请公布号 |
EP1020625(A2) |
申请公布日期 |
2000.07.19 |
申请号 |
EP20000100452 |
申请日期 |
2000.01.10 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
OBATA, TAKEAKI;TAKAHASHI, NOBUTAKA |
分类号 |
F02D9/02;F01L9/04;F02D11/10;F02D13/02;F02D13/04;F02D41/00;F02D41/12;(IPC1-7):F02D33/02 |
主分类号 |
F02D9/02 |
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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