A method of warming a valve assembly includes receiving an exhaust flow through a first heat exchanger first inlet; heating a coolant received through a first heat exchanger second inlet with the exhaust flow; exhausting the exhaust flow through a first heat exchanger first outlet; and discharging heated coolant through a first heat exchanger second outlet towards a second heat exchanger assembly that is coupled to the valve assembly to heat the valve assembly.

Methods and systems are provided for on-board diagnostics of components of an exhaust gas heat recovery (EGHR) system including engine coolant temperature sensors coupled to the system. Degradation of one or more of a first coolant temperature sensor coupled upstream of a heat exchanger of the EGHR system and a second coolant temperature sensor coupled downstream of the heat exchanger may be indicated based on a difference between a modeled coolant temperature and a measured coolant temperature, the modeled coolant temperature based on one or more of heat transfer between a heater core and vehicle cabin, and heat transfer between exhaust flowing via the heat exchanger and coolant flowing through the heat exchanger.

Methods and systems are provided for on-board diagnostics of components of an exhaust gas heat recovery (EGHR) system including engine coolant temperature sensors coupled to the system. Degradation of one or more of a first coolant temperature sensor coupled upstream of a heat exchanger of the EGHR system and a second coolant temperature sensor coupled downstream of the heat exchanger may be indicated based on a difference between a modeled coolant temperature and a measured coolant temperature, the modeled coolant temperature based on one or more of heat transfer between a heater core and vehicle cabin, and heat transfer between exhaust flowing via the heat exchanger and coolant flowing through the heat exchanger.

A thermal management device includes a waste-heat supply device that supplies waste heat to a heat medium flowing through a second heat medium path portion, a heater core that exchanges heat between air and the heat medium, a switching valve that switches between a state in which the heat medium circulates between the heater core and a first heat medium path portion and a state in which the heat medium circulates between the heater core and the second heat medium path portion, an adjustment portion that adjusts a temperature of the heat medium in the first heat medium path portion, and a controller. The controller controls the adjustment portion such that the temperature of the heat medium in the first heat medium path portion is equal to or higher than a predetermined temperature when the switching valve circulates the heat medium between the heater core and the second heat medium path portion.

An exhaust system for a motor vehicle, with an exhaust pipe for discharging exhaust of a device that produces an exhaust. A heat accumulator, which surrounds the exhaust pipe in the peripheral direction with respect to a longitudinal central axis of the exhaust pipe, is present, at least in regions thereof, and, in the radial direction between the exhaust pipe and the heat accumulator over at least a portion of the longitudinal extension the heat accumulator, a cross-section adjusting element for adjusting a passage cross section is arranged between the exhaust pipe and the heat accumulator. The cross-section adjusting element has a first holed pipe, which surrounds the exhaust pipe, and a second holed pipe, which surrounds the first holed pipe. The first holed pipe and the second holed pipe can be shifted in position relative to each other for adjusting the passage cross section.

A vehicle on which an all-solid-state battery is mounted includes the all-solid-state battery, and a case that accommodates the all-solid-state battery. The vehicle is configured such that, when gas is generated in the case, a blocking process is executed to separate a vehicle cabin from outside air.

A vehicle on which an all-solid-state battery is mounted includes the all-solid-state battery, and a case that accommodates the all-solid-state battery. The vehicle is configured such that, when gas is generated in the case, a blocking process is executed to separate a vehicle cabin from outside air.

An adsorption based system is provided for the selective cooling and heating of a vehicle compartment using by-product water collected from a power generating unit of a vehicle. The system may include a fuel cell stack and an exhaust conduit configured to transfer an exhaust stream from the fuel cell stack. A water reservoir stores by-product water collected from the exhaust stream. The system may include a coolant loop configured to circulate a coolant fluid. A detachable adsorption subsystem is in thermal communication with the coolant loop and the exhaust conduit, and may include an evaporator and an adsorbent bed. The adsorption subsystem is configured to: vaporize water from the water reservoir using the evaporator; adsorb the vaporized water, thereby cooling a portion of the coolant fluid; regenerate the adsorbent bed using heat from the exhaust stream to release water vapor; and direct the water vapor into the exhaust conduit.

There is provided a vehicle air conditioning apparatus that can prevent the amount of the refrigerant discharged from the compressor from reducing when an outside air temperature is low to achieve a heating performance required for a heating operation, and also can dehumidify the vehicle interior without deteriorating the heating performance during a heating and dehumidifying operation. The vehicle air conditioning apparatus includes: a heat released refrigerant expansion valve that decompresses the refrigerant discharged from the radiator during the heating operation and the first heating and dehumidifying operation; a gas-liquid separator that separates the refrigerant decompressed by the heat released refrigerant expansion valve into a gaseous refrigerant and a liquid refrigerant; and a bypass circuit that allows part of at least the gaseous refrigerant separated in the gas-liquid separator to flow into a section of the compressor through which the refrigerant being decompressed passes.

There is provided a vehicle air conditioning apparatus that can prevent the amount of the refrigerant discharged from the compressor from reducing when an outside air temperature is low to achieve a heating performance required for a heating operation, and also can dehumidify the vehicle interior without deteriorating the heating performance during a heating and dehumidifying operation. The vehicle air conditioning apparatus includes: a heat released refrigerant expansion valve that decompresses the refrigerant discharged from the radiator during the heating operation and the first heating and dehumidifying operation; a gas-liquid separator that separates the refrigerant decompressed by the heat released refrigerant expansion valve into a gaseous refrigerant and a liquid refrigerant; and a bypass circuit that allows part of at least the gaseous refrigerant separated in the gas-liquid separator to flow into a section of the compressor through which the refrigerant being decompressed passes.