Systems and methods for improving operation of a stop/start vehicle are presented. In one example, an engine throttle position is adjusted in response to whether or not a starter engages a flywheel during engine stopping. The throttle may be adjusted to a more open position if the starter engages the flywheel or to a more closed position if the starter does not engage the flywheel.

A cooling apparatus for a hybrid vehicle is provided with an oil circulating circuit supplying oil discharged from an electric oil pump to a first motor, a second motor, an inverter, and a lubrication-required part, and the oil circulating circuit includes: a first circuit supplying the oil that is discharged from the electric oil pump, and is cooled by an HV radiator to the inverter, the first motor, and the second motor; and a second circuit supplying the oil that is discharged from the electric oil pump without being cooled by the HV radiator to the lubrication-required part.

A power transmission device includes a rotor shaft, a gear shaft, and a rattling suppression member. The rattling suppression member is provided between a first shaft end portion and the gear shaft or between a second shaft end portion and the rotor shaft. The first shaft end portion is a portion, protruding to the gear shaft side from one of a pair of first bearings, of the rotor shaft, while the second shaft end portion is a portion, protruding to the rotor shaft side from one of a pair of second bearings, of the gear shaft.

A hybrid vehicle drive system for use with a first prime mover and a transmission driven by the first prime mover. The system includes a second prime mover coupled to a rechargeable energy source, a split shaft PTO, and an accessory coupled to the split shaft PTO. The split shaft PTO is configured to couple to the second prime mover, and the accessory is configured to receive power from the second prime mover through the split shaft PTO.

A vehicle powertrain has a power inverter that includes a load switch with a main emitter and a current mirror emitter, a variable resistor coupled between the current mirror emitter and the main emitter, and a controller. The controller may be configured to adjust a gate voltage based on a voltage across the variable resistor, and responsive to the gate voltage exceeding a Miller plateau gate voltage, increase a variable resistor resistance such that feedback increases as the load switch saturates.

Methods are provided for optimizing generation of water on-board a vehicle with reduced impact on fuel economy. Regenerative braking energy, and/or solar energy, in excess of what is required for charging a system battery, is used to operate a water extractor and save the captured energy as stored water. A proportion of the braking energy used to charge the battery versus operate the water extractor is adjusted as a function of operating conditions including a water level in a water reservoir on-board the vehicle.

A power module apparatus (10) comprises: a power module (100A) comprising a package (110) configured to seal a perimeter of a semiconductor device, and a heat radiator (42) bonded to one surface of the package; a cooling device (30) comprising a coolant passage (33) through which coolant water flows, in which the heat radiator is attached to an opening (35) provided on a way of the coolant passage, wherein the heat radiator (42) of the power module (100A) is attached to the opening (35) of the cooling device (30) so that a height (ha) and a height (hb) are substantially identical to each other. The power module in which the heat radiator is attached to the opening formed at the upper surface portion of the cooling device can also be efficiently cooled, and thereby it becomes possible to reduce degradation due to overheating.

A method includes controlling an electrified vehicle by automatically engaging a braking device if the electrified vehicle is in park and an engine start or stop request has been received. Controlling the electrified vehicle includes preventing a brake lamp from illuminating during engagement of the braking device.

A vehicle system includes a contactor including a coil and relay, a traction battery, a load, and a controller configured to transfer current from the traction battery through the coil to pre-charge the load without causing the relay to close such that a voltage drop across the relay falls below a threshold value, and subsequently cause the relay to close.

Methods and systems are provided for a park lock system for an automatic transmission. In one example, a park lock system may include a slideable element coupled to a park rod, a lock slot formed by the slideable element, a cam coupled to an end of a shaft, the shaft positioned within a solenoid and moveable by energization of the solenoid, and a pivotable pawl adapted to couple with the lock slot. In one example, the pivotable pawl is coupled to the lock slot by energization of the solenoid, and a position of the slideable element is locked.