A vehicle drive apparatus includes: an engine; a rotary machine; an output member coupled to a drive wheel of a vehicle; a differential mechanism configured to couple the engine, the rotary machine, and the output member together to be differentially rotatable via a plurality of differentially rotatable rotational elements; and an elastic member configured to couple a rotation shaft of the rotary machine to the rotational element of the differential mechanism to be relatively rotatable.

A vehicle drive system includes a left-wheel drive unit having a first motor and a first transmission, a right-wheel drive unit having a second motor and a second transmission, and a motor control unit. Each of the first and second transmissions has a first to third rotational elements. The first motor is connected to the first rotational element of the first transmission. The second motor is connected to the first rotational element of the second transmission. The left wheel is connected to the second rotational element of the first transmission. The right wheel is connected to the second rotational element of the second transmission. The third rotational element of the first transmission and the third rotational element of the second transmission are coupled to each other. Each of the first and second transmissions has a fourth rotational element which is supported to revolve around by the second rotational element.

A method for implementing virtual internal combustion engine vibration in an electric vehicle includes collecting operation variable information for determining a torque instruction and implementing the virtual internal combustion engine vibration, determining a virtual internal combustion engine vibration characteristic based on the collected operation variable information, determining a vibration torque instruction having the determined virtual internal combustion engine vibration characteristic, correcting the vibration torque instruction by correcting the determined virtual internal combustion engine vibration characteristic of the vibration torque instruction and/or a value of the vibration torque instruction, based on a basic motor torque instruction determined by the collected operation variable information and preset backlash occurring area information, determining a final motor torque instruction using the basic motor torque instruction and the corrected vibration torque instruction.

A position assurance apparatus includes a first connecting portion, and a second connecting portion configured to be electrically connected to the first connecting portion. The first connecting portion and the second connecting portion are configured to be electrically connected to a signal circuit through a first connector, so that the signal circuit is turned on in response to the first connector and a second connector being plugged into place.

A vehicle powertrain includes an IGBT, having a Kelvin emitter and a mirror current sense, configured to energize an inductance, a first switch configured to draw a current from a gate of the IGBT at a rate based on a resistance engaged by the first switch while a current of the inductance exceeds a threshold, and a second switch configured to increase the rate in response to the current being less than the threshold. In one embodiment, the current is based on a filtered voltage across a resistor connected between the mirror current sense and chassis ground while the Kelvin emitter is connected to chassis ground. In another embodiment, the current is based on a filtered voltage across a resistor connected between the mirror current sense and the Kelvin emitter.

An electric vehicle harness routing structure is provided for an electric vehicle having an electric motor as a drive source, a control device to control the electric motor as well as charging of a battery for power supply to the electric motor, and a power unit elastically supported on a vehicle body. The harness routing structure includes a charging port, a quick charging harness, a normal charging harness, a first quick-charge harness clip, a second quick-charge harness clip, a first normal-charge harness clip and a second normal-charge harness clip. The clips of the electric vehicle harness routing structure is provided such that when connecting a relatively movable power unit and charging ports with the quick charging harness and the normal charging harness, it is possible to prevent interference of between the charging harnesses.

A connection structure includes: a circuit breaker connected to a power cable through which high-voltage power is supplied; a high-voltage device box accommodating the circuit breaker; a main transformer configured to transform a voltage of the high-voltage power and provided under the floor of the car; a first connector device electrically connected to the circuit breaker and provided at a dividing wall of the high-voltage device box; a second connector device electrically connected to the main transformer and provided at a dividing wall of the main transformer; and a high-voltage cable covered with an insulating coating and having both end portions to which cable connector portions are respectively attached, wherein the high-voltage cable connects the first connector device and the second connector device in such a manner that the cable connector portions respectively fit and are connected to the first connector device and the second connector device.

The present invention provides a battery-driven traveling device including: a framework section disposed on at least a bottom part of a vehicle body for ensuring strength of the vehicle body; two slide rails being composed of a left slide rail and a right slide rail and being supported by the framework section and extending substantially horizontally; a battery supporting member that is mounted to be insertable into the vehicle body and extractable from the vehicle body by using the two slide rails; and a plurality of dampers disposed on a path through which vibration of the vehicle body is transmitted from each of the slide rails to the battery supporting member for relaxing the vibration transmitted from the vehicle body to the battery while the device travels, wherein the left slide rail is disposed on left side of the battery supporting member and the right slide rail is disposed on right side of the battery supporting member, and each of the dampers is disposed above or below the left slide rail or the right slide rail.

A surface treatment robot includes a chassis having forward and rear ends and a drive system carried by the chassis. The drive system includes right and left driven wheels and is configured to maneuver the robot over a cleaning surface. The robot includes a vacuum assembly, a collection volume, a supply volume, an applicator, and a wetting element, each carried by the chassis. The wetting element engages the cleaning surface to distribute a cleaning liquid applied to the surface by the applicator. The wetting element distributes the cleaning liquid along at least a portion of the cleaning surface when the robot is driven in a forward direction. The wetting element is arranged substantially forward of a transverse axis defined by the right and left driven wheels, and the wetting element slidably supports at least about ten percent of the mass of the robot above the cleaning surface.

An electric vehicle includes front and rear wheels, a battery, an electric motor that drives at least one of the front and rear wheels, an accelerator, and a mode shift operator that is operated by a user in order to switch drive modes. The electric vehicle includes a driving force characteristics setter that sets, for each of the plurality of drive modes, driving force characteristics which are characteristics of an accelerator opening degree and a target motor driving force for the rotational speed of the electric motor. The electric vehicle further includes a controller which shifts up, according to an operation of the mode shift operator, the drive mode from a first drive mode to a second drive mode and which controls the target motor driving force according to the driving force characteristics. When a shift-down prohibition condition is met, the controller prohibits a shift down from the second drive mode to the first drive mode.