发明名称 |
Method for controlling by-pass air flow on deceleration of internal combustion engine |
摘要 |
Described herein is a method for controlling the bypass air flow of internal combustion engine, which prevents the air-fuel ratio from becoming over rich temporarily in the initial stage of deceleration of the engine by driving a control valve to open a throttle by-pass passage on deceleration of the engine to supply auxiliary air thereto and which includes: detecting the open angle of the throttle valve; setting a valve opening rate according to the throttle open angle; setting an upper limit on the valve opening rate when it is greater than an upper limit value determined in relation with the engine speed; driving the control valve according to the valve opening rate; and on deceleration of the engine, gradually reducing a valve opening rate set in an operation prior to the deceleration.
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申请公布号 |
US4788954(A) |
申请公布日期 |
1988.12.06 |
申请号 |
US19870071780 |
申请日期 |
1987.07.10 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
OTOBE, YUTAKA;FUJIMOTO, SACHITO;KATOH, AKIRA |
分类号 |
F02D41/12;F02D41/00;F02M3/07;(IPC1-7):F02M23/06 |
主分类号 |
F02D41/12 |
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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