Abstract: A plugin hybrid electric vehicle includes an internal combustion engine, a battery, an electric machine, and a controller. The vehicle is operable in a primary electric vehicle driving mode (EV mode) and in a hybrid electric vehicle driving mode (HEV mode). The controller is programmed to receive input from the driver representing a desired operating mode and a desired energy reservation. If the desired operating mode is HEV mode, then a state of charge (SOC) offset is established as the smaller of a maximum SOC offset and an allowable SOC offset, otherwise, the SOC offset is established based on the desired energy reservation. The vehicle is operated based on the SOC offset.

Abstract: A powertrain includes a planetary gearset including an input connected to a shaft driveably connected to an engine, a second input driveably connected to an electric machine, and an output driveably connected to a countershaft, a clutch for releaseably connecting the countershaft and the input shaft through a first pair of meshing gears, and a brake for releaseably holding the input shaft and the input against rotation.

Abstract: A powertrain includes a planetary gearset including an input connected to a shaft driveably connected to an engine, a second input driveably connected to an electric machine, and an output driveably connected to a countershaft, a clutch for releaseably connecting the countershaft and the input shaft through a first pair of meshing gears, and a brake for releaseably holding the input shaft and the input against rotation.

Abstract: A plugin hybrid electric vehicle includes an internal combustion engine, a battery, an electric machine, and a controller. The vehicle is operable in a primary electric vehicle driving mode (EV mode) and in a hybrid electric vehicle driving mode (HEV mode). The controller is programmed to receive input from the driver representing a desired operating mode and a desired energy reservation. If the desired operating mode is HEV mode, then a state of charge (SOC) offset is established as the smaller of a maximum SOC offset and an allowable SOC offset, otherwise, the SOC offset is established based on the desired energy reservation. The vehicle is operated based on the SOC offset.

Abstract: A hybrid-electric powertrain for a wheeled vehicle having an internal combustion engine, an electric generator, an electric motor and a battery. Transmission gearing establishes multiple torque flow paths including a forward drive torque flow path and a reverse drive torque flow path, the motor being isolated from forward drive gearing elements as it acts as a sole reverse drive power source.

Abstract: A hybrid-electric powertrain for a wheeled vehicle having an internal combustion engine, an electric generator, an electric motor and a battery. Transmission gearing establishes multiple torque flow paths including a forward drive torque flow path and a reverse drive torque flow path, the motor being isolated from forward drive gearing elements as it acts as a sole reverse drive power source.

Abstract: A method for controlling power to wheels in a vehicle, the vehicle having an electric storage device for providing power to an electric machine. The method includes determining a first power demand for the vehicle based at least in part on a driver input, determining a second power demand based at least in part on the magnitude of the first power demand, determining a power adjustment based on at least one condition of the battery, and applying the power adjustment to the second power demand, thereby generating a wheel power request.