Crowell & Moring, L.L.P.
Throttle valve control device for an internal combustion engine
 A control device for an internal combustion engine is configured to switch over at least one of fuel injection amount and ignition timing to an emergency traveling mode in the event that an electric actuator for driving a throttle valve malfunctions, at which time the throttle valve is set at a default position. At the time of the emergency traveling mode, throttle valve opening degree is set at a value larger than the opening degree when an accelerator pedal is not depressed during normal operation. Fuel amount is set to obtain necessary engine rpm for the emergency traveling mode and when the acceleration pedal is not depressed or the vehicle speed is zero, ignition timing is retarded with respect to ignition timing during normal idling operation. 
Hitachi, Ltd.
F F F Y F F F F F F F F F
F02D F02D F02D Y02T F02D F02D F02D F02D F02D F02D F02B F02D F02D
inventional additional additional additional inventional inventional inventional additional inventional additional additional additional additional
Yasuhiro Norihiro Kenji Hiroyuki
Kamimura Isozaki Ono Yamada