Control apparatus for combustion engine of premixed...

Details Control apparatus for combustion engine of premixed... Control apparatus for combustion engine of premixed...

2006-12-18

2010-06-15

Wolfe, Jr., Willis R (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S103000, C701S110000, C123S564000, C123S568140, C123S568210, C060S605200

Reexamination Certificate

active

07739026

ABSTRACT:
At high temperature, namely, when the temperature of intake air is higher than a predetermined normal temperature range, an ECU (25) controls a variable valve timing mechanism (24) such that the timing for closing an exhaust valve (9) is adjusted to a retard side, thereby reducing the amount of high-temperature internal EGR gas to avoid the occurrence of pre-ignition. At intermediate load and high load, the ECU (25) makes the retard amount of the timing for closing the exhaust valve (9) larger than that at low load, thereby reducing the amount of internal EGR gas. At intermediate load and in an intermediate-revolution range or a high-revolution range, the rotating speed of an electric motor (16) is increased to raise a supercharging pressure exerted by a supercharger (17). At high load and in the high-revolution range, the electric motor (16) for the supercharger (17) and an EGR control valve (22) are controlled such that the supercharging pressure rises and the amount of external EGR gas increases as the temperature of intake air detected by a temperature sensor (26) rises.

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First Office Action for Patent Application No. 200680051621.6, dated Nov. 27, 2009 and English translation.
International Search Report of corresponding International Application No. PCT/JP2006/325168, mailed Feb. 13, 2007.
Copy of Japanese Official Notification in counterpart Japanese Application No. 2006-014070 dated Mar. 12, 2010.

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