Abstract: An electrified vehicle powered by a traction battery includes a coolant loop arranged to convey coolant through at least a radiator, a chiller, and the traction battery to transfer heat from the battery. The vehicle also includes a refrigerant loop in fluid communication with the chiller to selectively circulate refrigerant through the chiller to provide supplemental heat transfer from coolant conveyed through the chiller. The vehicle further includes a vision system having at least one camera with a field of view including a vicinity of the radiator and a controller programmed to detect a radiator coolant leak based on image data output from the vision system. The controller is also programmed to cause a bypass of the radiator within the coolant loop to stop conveyance of coolant through the radiator in response to detecting a coolant leak.

Abstract: A system includes at least one load in a vehicle, a battery electrically connected to the load, a power source electrically connected to the load, and a computer communicatively connected to the power source. The computer is programmed to reduce a voltage supplied by the power source to the load so that the battery discharges to supply power to the load, and then, in response to an electrical quantity of the system being outside an electrical-quantity range while the battery is discharging, perform a minimal risk condition or prevent the vehicle from movably operating.

Abstract: A system includes a first DCDC converter arranged to output electrical power only to a first battery and to first loads in a first specified set. The first specified set includes loads provided to control and perform steering and braking. The system further includes a second DCDC converter arranged to output electrical power to loads isolated from the first loads provided to control and perform steering and braking.

Abstract: A system includes at least one load in a vehicle, a battery electrically connected to the load, a power source electrically connected to the load, and a computer communicatively connected to the power source. The computer is programmed to reduce a voltage supplied by the power source to the load so that the battery discharges to supply power to the load, and then, in response to an electrical quantity of the system being outside an electrical-quantity range while the battery is discharging, perform a minimal risk condition or prevent the vehicle from movably operating.

Abstract: A vehicle power management system includes a primary power bus for powering a first non-critical load, a secondary power bus for powering a second non-critical load, and a first relay electrically connected between the primary power bus and the first non-critical load. The vehicle power management system further includes a second relay electrically connected between the secondary power bus and the second non-critical load. The first inductor is electrically connected to the secondary power bus and the second inductor is electrically connected to the primary power bus.

Abstract: A hybrid vehicle control system and method include a controller programmed to, while a transmission is in PARK or NEUTRAL, start an engine, close a disconnect clutch selectively coupling the engine to an electric machine, and control the electric machine to charge a traction battery in response to the accelerator pedal position exceeding an idle position and being less than a threshold. The controller controls transmission impeller speed in response to accelerator pedal position exceeding the threshold to allow revving the engine in response to accelerator pedal. A method for controlling a hybrid vehicle includes starting an engine, closing a clutch between the engine and an electric machine, and controlling the engine and the electric machine to either: i) charge a traction battery or ii) rev the engine based on accelerator pedal position relative to a threshold above an idle position while the transmission is in PARK or NEUTRAL.

Abstract: An electrified vehicle powered by a traction battery includes a coolant loop arranged to convey coolant through at least a radiator, a chiller, and the traction battery to transfer heat from the battery. The vehicle also includes a refrigerant loop in fluid communication with the chiller to selectively circulate refrigerant through the chiller to provide supplemental heat transfer from coolant conveyed through the chiller. The vehicle further includes a vision system having at least one camera with a field of view including a vicinity of the radiator and a controller programmed to detect a radiator coolant leak based on image data output from the vision system. The controller is also programmed to cause a bypass of the radiator within the coolant loop to stop conveyance of coolant through the radiator in response to detecting a coolant leak.

Abstract: A vehicle power management system includes a primary power bus for powering a first non-critical load, a secondary power bus for powering a second non-critical load, and a first relay electrically connected between the primary power bus and the first non-critical load. The vehicle power management system further includes a second relay electrically connected between the secondary power bus and the second non-critical load. The first inductor is electrically connected to the secondary power bus and the second inductor is electrically connected to the primary power bus.

Abstract: A system includes a first DCDC converter arranged to output electrical power only to a first battery and to first loads in a first specified set. The first specified set includes loads provided to control and perform steering and braking. The system further includes a second DCDC converter arranged to output electrical power to loads isolated from the first loads provided to control and perform steering and braking.

Abstract: A driver coaching system may have an input device generating an input signal indicative of a road condition. The system may also include an advisory device determining an output conveyed to a driver and indicative of a fuel efficiency rating based on an actual vehicle speed and an optimum fuel efficient speed. The advisory device may not decrease the fuel efficiency rating when the road condition does not warrant the optimum fuel efficient speed.

Abstract: A method of controlling a stop-start vehicle includes, in response to an engine being in an auto-stopped condition and a signal indicative of a driver exiting the vehicle, maintaining the engine in the auto-stopped condition. The method additionally includes securing vehicle wheels against rotation and reducing a convenience feature power consumption.

Abstract: A vehicle includes an engine, and a transmission including a torque converter having an impeller. The vehicle further includes an electric machine configured to provide drive torque to the impeller. The impeller is selectively coupled to the engine via a clutch. At least one vehicle controller is configured to, in response to the engine being OFF, the transmission being in DRIVE, a vehicle speed being zero and a brake pedal being released beyond a threshold position, command the electric machine to provide a torque to the impeller. The torque is a predetermined feedforward torque adjusted by a feedback torque that is based on a difference between measured and calculated speeds. The speeds may be the speeds of the electric machine.

Abstract: A vehicle includes an internal combustion engine having an auto stop function, an electric pump motor drivably coupled to a transmission pump and a heat exchanger pump, and at least one controller. The controller is configured to control the pump motor to operate the transmission pump to supply hydraulic pressure to a transmission, and to operate the heat exchanger pump to provide flow from the engine to a heater core radiator in response to the engine being auto stopped.

Abstract: A vehicle includes an internal combustion engine having an auto stop function, an electric pump motor drivably coupled to a transmission pump and a heat exchanger pump, and at least one controller. The controller is configured to control the pump motor to operate the transmission pump to supply hydraulic pressure to a transmission, and to operate the heat exchanger pump to provide flow from the engine to a heater core radiator in response to the engine being auto stopped.

Abstract: An engine of a stop/start vehicle, after the engine has been automatically stopped, may be commanded to automatically restart in response to detecting that the vehicle is in a turn lane based on traffic data in a vicinity of the vehicle such that the engine is automatically restarted before a brake pedal is released and a steering wheel is turned.

Abstract: A hybrid vehicle control system and method include a controller programmed to, while a transmission is in PARK or NEUTRAL, start an engine, close a disconnect clutch selectively coupling the engine to an electric machine, and control the electric machine to charge a traction battery in response to the accelerator pedal position exceeding an idle position and being less than a threshold. The controller controls transmission impeller speed in response to accelerator pedal position exceeding the threshold to allow revving the engine in response to accelerator pedal. A method for controlling a hybrid vehicle includes starting an engine, closing a clutch between the engine and an electric machine, and controlling the engine and the electric machine to either: i) charge a traction battery or ii) rev the engine based on accelerator pedal position relative to a threshold above an idle position while the transmission is in PARK or NEUTRAL.

Abstract: A vehicle computer is programmed to: detect a portable computing device communicatively coupled to the vehicle computer. The vehicle computer is further programmed to control at least one vehicle operation based at least in part on the presence of the portable device, the at least one vehicle operation including at least one of control of steering, propulsion, and brakes.

Abstract: A vehicle includes an engine, and a transmission including a torque converter having an impeller. The vehicle further includes an electric machine configured to provide drive torque to the impeller. The impeller is selectively coupled to the engine via a clutch. At least one vehicle controller is configured to, in response to the engine being OFF, the transmission being in DRIVE, a vehicle speed being zero and a brake pedal being released beyond a threshold position, command the electric machine to provide a torque to the impeller. The torque is a predetermined feedforward torque adjusted by a feedback torque that is based on a difference between measured and calculated speeds. The speeds may be the speeds of the electric machine.

Abstract: A method of controlling a stop-start vehicle includes, in response to an engine being in an auto-stopped condition and a signal indicative of a driver exiting the vehicle, maintaining the engine in the auto-stopped condition. The method additionally includes securing vehicle wheels against rotation and reducing a convenience feature power consumption.

Abstract: A controller may be configured to adjust a brake apply and release detection calibration based on a detection sensitivity associated with a predicted driver start/stop intention for a vehicle and an associated confidence level indicative of a likelihood of the predicted driver intention; and perform at least one of engine startup and engine shutdown according to the adjusted brake pedal detection calibration.