Abstract: Vehicle systems with context based dynamic power savings are disclosed. For one example, a vehicle data processing system includes a telematics subsystem, one or more sensors and a vehicle controller unit (VCU). The telematics subsystem receives map data for a vehicle. The one or more sensors receive sensor data related to the vehicle or user of the vehicle. The VCU is coupled to the telematics subsystem and one or more sensors. The VCU can change a torque limit for an electric motor of the vehicle based on a context derived from the received map data or sensor data. The VCU can enter a mode for dynamic power savings and set the torque limit to a lower base limit from a higher base limit to conserve power consumption.

Abstract: Downhill charge sustain battery protection strategy is disclosed. For one example, a vehicle is powered by an electric motor and battery. The vehicle includes a vehicle control unit (VCU) to control friction braking and regenerative braking for the vehicle. For one example, the VCU is configured to implement a method comprising detecting a condition to switch back and forth between regenerative braking and friction braking. For one example, the detected condition is a charge sustain event such as, for example, the vehicle being at a top of a hill or going down a hill in a lift condition (no pedals pressed) and the battery is fully charged at maximum state of charge (SOC) or voltage limit.

Abstract: Methods and systems are provided for starting an engine via an electric turbocharger. In one example, a method for starting the engine via the electric turbocharger may include flowing compressed air from the electric turbocharger to cylinders of the engine to crank a crankshaft of the engine without a starter motor. The method may include adjusting an opening amount of electrically or pneumatically actuated intake valves and exhaust valves to reduce a force to crank the crankshaft.

Abstract: Methods and systems are provided for starting an engine via an electric turbocharger. In one example, a method for starting the engine via the electric turbocharger may include flowing compressed air from the electric turbocharger to cylinders of the engine to crank a crankshaft of the engine without a starter motor. The method may include adjusting an opening amount of electrically or pneumatically actuated intake valves and exhaust valves to reduce a force to crank the crankshaft.