Abstract: A mounting structure of a high voltage unit for an electric vehicle includes a first high voltage unit that has vehicle body fixing parts to be fixed to a vehicle body at both ends in a width direction, and a second high voltage unit that is arranged on an upper side of the first high voltage unit in a vertical direction of the vehicle, in which, in the second high voltage unit, a high voltage heavy component included in the second high voltage unit is arranged closer to a lowermost surface in the vertical direction of the vehicle.

Abstract: A mounting structure of a high voltage unit for an electric vehicle includes a first high voltage unit that has vehicle body fixing parts to be fixed to a vehicle body at both ends in a width direction, and a second high voltage unit that is arranged on an upper side of the first high voltage unit in a vertical direction of the vehicle, in which, in the second high voltage unit, a high voltage heavy component included in the second high voltage unit is arranged closer to a lowermost surface in the vertical direction of the vehicle.

Abstract: Out of combinations of three pins(15) and bushes(16a-16c), a clearance between one of the bushes(16a) and the pin(15) is small, and a clearance between the other two bushes(16b,16c) and the pins(15) are large, whereby torque transmission is always performed by only one pin(15) and the bush(16a) during rotation to avoid a transfer phenomenon between the pins. Disposing the pins and the bushes at an equal interval allows a good balance of rotation to provide an easy assembly.

Abstract: Out of combinations of three pins(15) and bushes(16a-16c), a clearance between one of the bushes(16a) and the pin(15) is small, and a clearance between the other two bushes(16b,16c) and the pins(15) are large, whereby torque transmission is always performed by only one pin(15) and the bush(16a) during rotation to avoid a transfer phenomenon between the pins. Disposing the pins and the bushes at an equal interval allows a good balance of rotation to provide an easy assembly.

Abstract: A vibration reducing system of an internal combustion engine for an automotive vehicle. The vibration reducing system comprises a roll vibration system which generates a roll vibration of an engine main body, the roll vibration having a first vibration mode. Additionally, a rotational vibration system is provided to generate a rotational vibration having a second vibration mode, and includes a crankshaft of the engine, for generating a rotational driving force, a main flywheel fixedly connected to the crankshaft, a driving force transmitting mechanism through which the rotational driving force of the crankshaft is transmitted, the driving force transmitting mechanism being movably secured to the engine main body, and an inertial mass member drivably connected to the driving force transmitting mechanism and rotatable to generate an inertial force upon receiving the rotational driving force transmitted through the driving force transmitting mechanism.

Abstract: An apparatus for reducing periodical noises transmitted from a noise source into a vehicle passenger compartment. The apparatus comprises control sound sources for producing control sounds in the vehicle passenger compartment, residual noise sensors for detecting the residual noises in the vehicle passenger compartment, transfer function filters modeled on transfer function between the control sound sources and the residual noise sensors, and adaptive digital filters having variable filter coefficients. A reference signal is produced in the form of a series of impulses having the same period as the noises. The transfer function filters are convoluted with the reference signal to produce reference processed signals. The adaptive digital filters are convoluted with the reference signal to generate drive signals to drive the control sound sources.