Abstract: The integrated automotive HVAC/PTC system of the present invention includes a bi-fluidic heat exchanger between an air conditioning subsystem and a heating subsystem which enables heat extracted during dehumidification of the ventilation air to be transferred into dehumidified ventilation air. The HVAC/PTC system includes reconfigurable coolant loops and reconfigurable refrigerant loops, some of which act in concert and some of which may be isolated. Power train components, including the power supply, may be grouped by heat transfer requirements and may be cooled or heated as needed. Power train cooling is accomplished with coolant in the heating subsystem chilled by the air conditioning system.

Abstract: The invention provides a temperature controller for a vehicular battery which uses the waste heat of the engine to control the temperature of a high temperature battery, to thereby enable miniaturization of the vehicle and energy savings, and which can accurately control the high temperature battery to an optimum efficiency temperature. The battery temperature controller comprises: a heat exchanger 11 for removing waste heat from a vehicle engine 3; a heating loop K being a coolant circulation path for conveying heat from the heat exchanger 11 to a vehicle high temperature battery 5; a radiator 9 for cooling the high temperature battery 5; a cooling loop R being a coolant circulation path for carrying heat from the high temperature battery 5 to the radiator 9, and connected in parallel with the heating loop K so as to have a common path C, and a first flow control valve 60 and a second flow control valve 61 respectively provided in the heating loop K and the cooling loop R.

Abstract: A circulation apparatus for coolant in a vehicle, wherein a feature of the invention is that with a circulation apparatus for coolant in a vehicle, it is separated into a coolant circulation system having a first radiator 8 for an engine cooling, and a coolant circulation system having a second radiator 9 for electric motor and engine equipment cooling. With the second radiator 9, various apparatus to be cooled, namely the drive motor and engine equipment are cooled, and there is provided circulation quantity control devices 53, 54, 57 for controlling the quantity of coolant circulated to the various apparatus to be cooled.

Abstract: The invention provides a cooling apparatus for a vehicular engine which can improve the life of at least one of, an exhaust gas recirculation unit and an intercooler. With the cooling apparatus for a vehicular engine of the invention, then with a vehicular engine (an automobile in this example) provided with at least one of an exhaust gas recirculation unit (EGR) 50a and an intercooler 50 for a turbocharger 100, there is provided a radiator 9, and an electric pump 53 for circulating coolant to carry heat generated by at least one of the exhaust gas recirculation unit (EGR) 50a and the intercooler 50 to the radiator 9. When the automobile engine 3 is stopped, the operation of the electric pump 53 continues for a fixed period so that the coolant cooled by the radiator 9 is circulated to at least one of the EGR 50a and the intercooler 50b to provide cooling to thus rapidly reduce the temperature. The electric pump 53 is then stopped when a low temperature is reached.

Abstract: The invention provides a temperature controller for a vehicular battery which uses the waste heat of the engine to control the temperature of a high temperature battery, to thereby enable miniaturization of the vehicle and energy savings, and which can accurately control the high temperature battery to an optimum efficiency temperature.