Methods and systems are provided for operating a driveline of a hybrid vehicle that includes an internal combustion engine, an electric machine, and a transmission, where the transmission is downstream of the engine, and where the electric machine is downstream of the transmission. In one example, responsive to a driver-demanded wheel torque that exceeds a capacity of the electric machine, a vehicle acceleration plateau is avoided by transiently connecting a crankshaft of the engine to a low speed input shaft of the transmission while the engine is accelerating to a target speed.

A vehicle includes an engine and a controller. The controller may be configured to, responsive to indication of a temperature of a starter-generator exceeding a de-rated threshold, command the engine to start and disable engine automatic shut-off. And the controller may be configured to, responsive to indication of the temperature exceeding a disabled threshold, or the temperature exceeding the de-rated threshold and a traction battery discharge power being less than a threshold, command the engine to start and shed a load.

Methods and systems are provided for operating a driveline of a hybrid vehicle that includes an internal combustion engine, an electric machine, and a transmission, where the transmission is downstream of the engine, and where the electric machine is downstream of the transmission. In one example, while the vehicle is being propelled solely via the electric machine, one or more gears of the transmission may be pre-engaged or selected, to prepare the driveline for an engine start event. In this way, driveline torque disturbance and delays in torque requests may be reduced or avoided upon a request for an engine start event.

A system for controlling the speed of a hybrid work machine that has an engine assembly, an electric drive system mechanically coupled to the engine assembly, a drive mechanism configured to be driven by the electric drive system, and a controller in communication with the engine assembly, the electric drive system, and the drive mechanism. Wherein, the controller selectively engages the engine assembly, the electric drive system, and the drive mechanism to execute a braking function.

A hybrid vehicle control method controls a hybrid vehicle having an electric power source, a vehicle electrical equipment and drive motor to which electric power is supplied from the electric power source. The vehicle electrical equipment and the drive motor are electrically connected to the electric power source via at least a shared harness. When a temperature of the harness is equal to or greater than a predetermined temperature, upper limit values of electric power supplied from the electric power source to the vehicle electrical equipment and the drive motor are both reduced, and a degree of reduction in the upper limit value for the vehicle equipment is greater than a degree of reduction in the upper limit value for the drive motor.

A vehicle including: a battery; a voltage control unit that boosts an output voltage of the battery; a main drive unit, including an engine and a main drive motor driven by electric power with a boosted voltage, that outputs a main driving force for driving one of a front wheel and a rear wheel by at least one of the engine and the main drive motor; a sub drive unit, including a sub drive motor driven by the electric power with the boosted voltage, that outputs a sub driving force for driving another of the front wheel and the rear wheel; and a control unit, in which, when a temperature of the sub drive unit makes equal to or higher than a predetermined value while the main drive unit outputs the main driving force including a driving force of the engine, the control unit increases the boosted voltage.

A system and method of controlling a powertrain to protect a high voltage cable by determining a temperature characteristic for a busbar, determining a temperature characteristic adjacent to a component, and determining a current through the high voltage cable. Thereafter, the method reduces an operating characteristic of the powertrain based on the temperature characteristic for the busbar, the temperature characteristic adjacent to the component, and the current.

Responsive to accelerator pedal release and a speed of a vehicle being less than a threshold in a presence of indication that available powertrain torque has been reduced for at least a predetermined period of time during an absence of brake pedal engagement, a controller operates friction brakes to bring the vehicle to a stop. Responsive to accelerator pedal release and the speed being less than the threshold in an absence of the indication that available powertrain torque has been reduced and brake pedal engagement, the controller operates an electric machine and not the friction brakes to bring the vehicle to a stop.

A driveline includes an engine, a transmission configured to couple to an axle of the electrified military vehicle, a tractive motor coupled to the transmission, an engine clutch positioned between the engine and the tractive motor, and an accessory drive. The accessory drive includes an accessory motor, an accessory clutch including a first portion and a second portion, an accessory coupled to the first portion, a first belt coupling the first portion to the accessory motor, and a second belt coupling the second portion to the engine.

A method for generating driving instructions for the driver of an electrically driven vehicle includes the following steps: (a) acquire route information for at least one route section of a driving route lying ahead of the vehicle, (b) determine temperature information, acting in a temperature-varying fashion on at least one drive component, for the at least one route section on the basis of the route information, and (c) output a driving instruction to the driver on the basis of the temperature information for the at least one route section.