Control device and method for internal combustion engine

Details Control device and method for internal combustion engine Control device and method for internal combustion engine

2006-06-27

2006-06-27

Solis, Erick (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S690000, C123S568210

Reexamination Certificate

active

07066144

ABSTRACT:
A control device for an internal combustion engine comprising an EGR passage (22) for connecting an intake passage (17) and an exhaust passage (18) with each other, an EGR valve (24) provided in the EGR passage (22), and an intake throttle valve (19) provided in the intake passage (17) at an upstream side of the connection part with the EGR passage (22). The control device comprises operational state detection means for detecting an operational state of the internal combustion engine, first control means for controlling opening and closing of the intake throttle valve (19) and the EGR valve (24) to adjust intake air volume if the operational state detection means detects a normal operational state, and second control means for controlling the intake throttle valve (19) at a predetermined constant opening degree and for controlling opening and closing of the EGR valve (24) to adjust an intake air volume if the operational state detection means detects a predetermined operational state.

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Copy of European Search Report for Serial No. EP 04 01 8396 dated Mar. 9, 2006.

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