Abstract: There is provided a switching apparatus that switches connection or non-connection between two terminals. The switching apparatus includes a series connection FET (field effect transistor) of which a source and a drain are connected to the two terminals, and a series connection control section that supplies a series connection control signal to perform switching control between the source and the drain to a gate of the series connection FET, and once transits, when switching the series connection FET from an OFF state to an ON state, the series connection control signal from an off-state voltage to hold the OFF state to a voltage exceeding an on-state voltage to hold the ON state and then makes the series connection control signal be the on-state voltage.

Abstract: A multi-port device analysis apparatus is capable of analyzing a multi-port device having three or more with improved efficiency and accuracy.

Abstract: A door unlock control system detects collision to a vehicle and executes door unlocking. The type of collision to the vehicle is determined. The order of execution of door unlocking is determined based on the type of collision. Door unlocking is then executed based on the order of execution.

Abstract: A door unlock control system detects collision to a vehicle and executes door unlocking. The type of collision to the vehicle is determined. The order of execution of door unlocking is determined based on the type of collision. Door unlocking is then executed based on the order of execution.

Abstract: A method for controlling the start of combustion in an homogeneous charge compression engine includes forming an substantially homogeneous air/fuel charge. At least the air of the air/fuel charge is introduced into the combustion chamber through an intake port. When the air/fuel charge auto-ignites is controlled by adjusting the pressure differential between the intake port and the combustion chamber when the intake passage is in communication with the combustion chamber. The air/fuel charge is compressed and the air/fuel charge is auto-ignited due to the compression of the air/fuel charge.

Abstract: In a light distribution lens for a strobe provided in front of a strobe light emitter to gather strobe light, one of opposed lens surfaces is made of a convex surface, and the other lens surface is made of a convex Fresnel surface. A zoom strobe device is also disclosed, which includes a light emitter unit having a light emitter and a reflector, a light distribution lens provided in front of the light emitter unit to gather light emitted from the light emitter, and a zoom device for varying the distance between the light emitter unit and the light distribution lens.

Abstract: Embodiments of valve operating mechanisms for operating the poppet valve of an internal combustion engine. Each embodiment includes a rotating cam member having a cam lobe surface engaged with a follower for actuating the poppet valve. The profile of the cam surface is such so that the absolute value of the jerk of the valve acceleration in the vicinity of maximum valve lift is smaller than the absolute value of the jerk of the valve in areas adjacent to the area of maximum valve lift. The load between the cam surface and the follower at the point of maximum lift is greater than the load during the time of at least one of the approach to maximum lift and the closing of the valve after the maximum lift because the tip of the nose of the cam has a greater effective radius than on the sides adjacent the tip. This reduces stress and permits greater engine speeds without valve float.

Abstract: An exhaust control drive arrangement for an internal combustion engine for varying the exhaust port timing and effective compression ratio. The exhaust control valve is driven by a servomechanism mounted directly on the cylinder block at one end of the engine and adjacent the flywheel so as to provide a compact assembly.