Toyota Motor Engineering & Manufacturing North America, Inc.
대리인 / 주소
Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
17
초록▼
A system that supplements the cooling of the power train of the vehicle and maintains the vehicle's cabin temperature. The system includes an processor, a blower, a heater core, and an evaporator. The blower blows air over the heater core so as to make the heater core in essence an auxiliary radiato
A system that supplements the cooling of the power train of the vehicle and maintains the vehicle's cabin temperature. The system includes an processor, a blower, a heater core, and an evaporator. The blower blows air over the heater core so as to make the heater core in essence an auxiliary radiator. The system further includes a first proportioning valve and a second proportioning valve. The proportioning valves are operable by the processor to control the flow of the dissipated heat between the vehicle cabin and a designated location. Specifically, the first proportioning valve is disposed upstream the heater core and is moveable between an open position and a closed position. The second proportioning valve is disposed downstream the heater core and directs airflow from the heater core between the vehicle cabin and the environment.
대표청구항▼
1. A system for cooling the powertrain of a vehicle and controlling the temperature of a vehicle cabin, the vehicle having a radiator, and a heater core housed within a plenum, the heater core in a closed loop circuit with the radiator so as to deliver coolant from the heater core to the radiator, a
1. A system for cooling the powertrain of a vehicle and controlling the temperature of a vehicle cabin, the vehicle having a radiator, and a heater core housed within a plenum, the heater core in a closed loop circuit with the radiator so as to deliver coolant from the heater core to the radiator, a blower operable to blow air onto both an evaporator and the heater core, a powertrain sensor configured to detect the state of the powertrain so as to determine if supplemental cooling of the powertrain is needed, an electronic control unit in communication with the powertrain sensor, the powertrain sensor operable to transmit the state of the powertrain to the electronic control unit, the system operable to supplement the cooling effects of a radiator while maintaining a desired vehicle cabin temperature, the system comprising: an intake and an outtake fluidly coupled to the plenum, the intake further includes a fresh air intake and a re-circulated air intake;a first baffle disposed downstream the fresh air intake;a second baffle disposed downstream the re-circulated air intake, wherein the first and second baffles are independently movable between a closed position wherein the fresh air intake and re-circulated air intake are obstructed, and an open position wherein airflow from the fresh air intake and re-circulated air intake into the plenum is unrestricted;a first proportioning valve disposed upstream the heater core and downstream the blower, the first proportioning valve operable to move between a closed position wherein the first proportioning valve blocks airflow from the blower onto the heater core, and an open position wherein the first proportioning valve positioned so as to provide unrestricted airflow from the blower to the heater core;a first conduit and a second conduit, wherein the first conduit provides a passage for air flowing from the heater core to a designated location within the vehicle cabin, and wherein the second conduit provides a passage for air flowing from the heater core to the environment;a second proportioning valve disposed upstream the first conduit and the second conduit, and downstream the blower, the evaporator, and the intake, wherein the second proportioning valve is movable between first position wherein the second proportioning valve blocks airflow from the heater core to the second conduit, and a second position wherein the second proportioning valve blocks airflow from the heater core to the first conduit; andwherein the electronic control unit is further operable to independently move the first and second proportioning valves so as to control supplemental cooling of the powertrain and the temperature of the vehicle cabin, wherein the second proportioning valve may be positioned so as to direct air from the heater core, through the second conduit to the environment or to the outtake. 2. The system as set forth in claim 1, wherein the heater core is disposed downstream the evaporator. 3. The system as set forth in claim 1, wherein the powertrain sensor is a temperature sensor mounted to the engine of the powertrain. 4. The system as set forth in claim 1, wherein the electronic control unit is operable to adjust the speed of the blower. 5. The system as set forth in claim 1, wherein the electronic control unit is in communication with the first and second baffles so as to move the first and second baffles between the open and closed position. 6. The system as set forth in claim 1, wherein the heater core is in a side-by-side configuration with the evaporator. 7. The system as set forth in claim 1, wherein the heater core is in an up-down configuration with the evaporator. 8. The system as set forth in claim 1, further including a temperature interface operable to selectively choose a desired cabin temperature, the temperature interface transmitting the selected cabin temperature to the electronic control unit, and wherein the electronic control unit is operable to adjust the evaporator, and the heater core and move the first and second proportioning valves so as to maintain the vehicle cabin at the selected cabin temperature.
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