Abstract: A vehicle heat management system includes a refrigerant circuit, a heating circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit is configured to circulate a refrigerant to regulate a temperature inside a passenger compartment therethrough. The heating circuit is configured to circulate a liquid that exchanges heat with the refrigerant therethrough. The heating circuit is capable of regulating the temperature inside the passenger compartment. The battery temperature regulation circuit is configured to regulate a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit is couplable to the battery temperature regulation circuit and configured to circulate a liquid able to cool an electric part for driving a vehicle therethrough.

Abstract: A vehicle includes a first power system, a second power system, a switching relay, and a relay controller. The first power system is coupled to an engine restart motor. The second power system is provided independently of the first power system and is coupled to a starter and an accessory. The coupling state of the switching relay is switchable to an on state in which the first power system and the second power system are coupled, and to an off state in which the first power system and the second power system are not coupled. The relay controller is configured to receive a supply of electric power from both the first power system and the second power system and to control the coupling state of the switching relay.

Abstract: A vehicle heat management system includes a refrigerant circuit, a heating circuit, and a battery temperature regulation circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The heating circuit circulates a liquid that exchanges heat with the refrigerant through the heating circuit. The heating circuit regulates the temperature inside the passenger compartment. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery.

Abstract: A vehicle heat management system includes a refrigerant circuit, a heating circuit, and a battery temperature regulation circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The heating circuit circulates a liquid that exchanges heat with the refrigerant through the heating circuit. The heating circuit regulates the temperature inside the passenger compartment. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery.

Abstract: A vehicle heat management system includes a refrigerant circuit, a heating circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit is configured to circulate a refrigerant to regulate a temperature inside a passenger compartment therethrough. The heating circuit is configured to circulate a liquid that exchanges heat with the refrigerant therethrough. The heating circuit is capable of regulating the temperature inside the passenger compartment. The battery temperature regulation circuit is configured to regulate a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit is couplable to the battery temperature regulation circuit and configured to circulate a liquid able to cool an electric part for driving a vehicle therethrough.

Abstract: A waste heat recovering and cooling apparatus for an engine includes a water pump that ejects cooling water of an engine; an EGR cooler that cools EGR gas introduced into an intake pipe from an exhaust pipe of the engine by using some of the cooling water ejected from the water pump; an EGR valve that opens and closes the channel of the EGR gas passing through the EGR cooler; and a transmission warmer that heats lubricating oil of a transmission by the cooling water passing through the EGR cooler.

Abstract: A waste heat recovering and cooling apparatus for an engine includes a water pump that ejects cooling water of an engine; an EGR cooler that cools EGR gas introduced into an intake pipe from an exhaust pipe of the engine by using some of the cooling water ejected from the water pump; an EGR valve that opens and closes the channel of the EGR gas passing through the EGR cooler; and a transmission warmer that heats lubricating oil of a transmission by the cooling water passing through the EGR cooler.