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AssigneeIsuzu Motors Limited
InventorsToshiaki Harunari, Koichiro Yomogida, Futoshi Nakano, Nobutaka Ishii, Kazuya Tomikawa
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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.
A control device for a diesel engine comprising an EGR passage for connecting an intake passage and an exhaust passage with each other, an EGR valve provided in the EGR passage, and an intake throttle valve provided in the intake passage at an upstream side of a connection part with the EGR passage, comprising:
A control method for a diesel engine comprising an EGR passage for connecting an intake passage and an exhaust passage with each other, an EGR valve provided in the EGR passage, and an intake throttle valve provided in the intake passage at an upstream side of a connection part with the EGR passage, comprising steps of:
Dependencies are inferred from the claim text.