A method of controlling a powertrain of a vehicle includes opening and/or closing one or more of a first switching device, a second switching device, a third switching device, and engaging and/or disengaging at least one of a pair of actuators for a starter mechanism or a motor/generator clutch. Many different control modes are provided for the powertrain by changing the operation of a motor-generator between a motor or a generator, and changing the electrical connections between a first energy storage device, a second energy storage device, an auxiliary electric system, the starter mechanism, and the motor-generator.

A system according to the present disclosure includes a trailer distance module, a trailer contact module, a trailer distance module, and at least one of a driver warning module, a brake control module, and a steering control module. The trailer distance module determines a distance from a cab of a truck to a fifth wheel trailer attached to the truck based on an input from a sensor. The trailer contact module identifies potential contact between the trailer and the truck cab based on the cab-to-trailer distance. The driver warning module warns a driver of the potential contact. The brake control module applies a brake of at least one of the truck and the trailer when potential contact is identified. The steering control module increases an amount of driver effort required to steer the truck in at least one direction when potential contact is identified.

In various embodiments, a system and method for determining a gross combined weight of a vehicle and its load is disclosed. A method includes: providing predetermined calibration settings relating force to engine speed for a specific vehicle travelling in a reverse direction, altering accelerometer data based on filtered vehicle pitch and roll data, determining that one or more vehicle performance parameters fall within a threshold range, storing a plurality of data pairs that include longitudinal acceleration and drive force, and determining a slope of a line that linearly approximates the plurality of data pairs, the slope indicating a total weight, the total weight comprising a weight of the vehicle and a weight being hauled by the vehicle; and transmitting the total weight to a remote system for display.

A controller for a vehicle is provided. The vehicle includes an engine, a rotary machine, at least one driving wheel, a first clutch disposed between a power transmission member and the rotary machine, the power transmission member being disposed between the engine and the driving wheel, the first clutch being configured to be switched to an engaged state or a disengaged state, and a second clutch disposed in parallel with the first clutch, the second clutch being a one-way clutch. The controller includes an electronic control unit. The electronic control unit is configured to control at least one of the rotary machine or the first clutch so as to reduce inertia of the power transmission member based on a torsional load acting on the power transmission member.

A system according to the present disclosure includes a trailer distance module, a trailer contact module, a trailer distance module, and at least one of a driver warning module, a brake control module, and a steering control module. The trailer distance module determines a distance from a cab of a truck to a fifth wheel trailer attached to the truck based on an input from a sensor. The trailer contact module identifies potential contact between the trailer and the truck cab based on the cab-to-trailer distance. The driver warning module warns a driver of the potential contact. The brake control module applies a brake of at least one of the truck and the trailer when potential contact is identified. The steering control module increases an amount of driver effort required to steer the truck in at least one direction when potential contact is identified.

A method for autonomously parking or un-parking a motor vehicle includes locating the motor vehicle relative to a parking area, selecting a destination location within the parking area, generating a path from the location of the motor vehicle to the destination location, wherein the path includes a plurality of linked nodes, each node having a cost associated therewith, wherein the cost of a child node is equal to an inherited cost plus a base cost and a change cost, wherein the change cost is a function of characteristics of a parent node, and autonomously driving the motor vehicle along the path from the location of the motor vehicle to the destination location.

A method for autonomously parking or un-parking a motor vehicle includes locating the motor vehicle relative to a parking area, selecting a destination location within the parking area, generating a path from the location of the motor vehicle to the destination location, wherein the path includes a plurality of linked nodes, each node having a cost associated therewith, wherein the cost of a child node is equal to an inherited cost plus a base cost and a change cost, wherein the change cost is a function of characteristics of a parent node, and autonomously driving the motor vehicle along the path from the location of the motor vehicle to the destination location.

When driver's deceleration intention is detected during traveling by a motor generator with an engine being stopped, a clutch is engaged to start the engine, and thereafter disengaged. When an engine speed after engine start is lower than a reference rotational speed being an input shaft rotational speed produced by driving force reversely transmitted from drive wheels, the engine speed is increased to a target rotational speed lower than the reference rotational speed. When the engine speed reaches the target rotational speed, output from the engine is decreased and the clutch is reengaged. Thus, while engine stall when activating the engine brake, which is due to the engine speed too low after engine start, is avoided by increase in the engine speed, the clutch is reengaged earlier so as to activate the engine brake fully, generating deceleration feeling the driver expects.