Apparatus and method for controlling cooling of electronic components of fuel cell vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60L-011/00
B60L-011/18
출원번호
US-0103511
(2013-12-11)
등록번호
US-9187009
(2015-11-17)
우선권정보
KR-10-2013-0063706 (2013-06-03)
발명자
/ 주소
Jeon, Soonil
Lee, Kyuil
Kim, Dae Jong
출원인 / 주소
HYUNDAI MOTOR COMPANY
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
An apparatus and method for controlling cooling of electronic components of a fuel cell vehicle are provided. The apparatus for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump includes a monitor configured to colle
An apparatus and method for controlling cooling of electronic components of a fuel cell vehicle are provided. The apparatus for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump includes a monitor configured to collect measured temperature of the electronic components and a measured temperature of a coolant through a plurality of temperature sensors, and a controller configured to control the RPM of the pump based on the measured temperatures and at least one of electronic component temperature maps, a coolant temperature map and a temperature difference map representing temperature differences between the electronic components and coolant, the controller controlling the RPM of the pump using over-temperature set information and over-temperature reset information of each temperature map.
대표청구항▼
1. An apparatus for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump, comprising: a monitor configured to collect a measured temperature of the electronic components and a measured temperature of a coolant through a
1. An apparatus for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump, comprising: a monitor configured to collect a measured temperature of the electronic components and a measured temperature of a coolant through a plurality of temperature sensors; anda controller configured to control a revolutions per minute (RPM) of the pump based on the measured temperatures and at least one of electronic component temperature maps, a coolant temperature map, and a temperature difference map representing temperature differences between the electronic components and the coolant, the controller controlling the RPM of the pump using over-temperature set information and over-temperature reset information of each temperature map,wherein, when at least one of a motor temperature, an inverter temperature, a high voltage (HV) DC-DC converter temperature, a low voltage (LV) DC-DC converter temperature, and the temperature differences between the electronic components and the coolant exceeds an over-temperature reference value, the controller determines that an electronic component corresponding to the temperature is in an over-temperature set state and applies a maximum value of pump RPM command values derived through the temperature maps as a final pump RPM command value. 2. An apparatus for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump, comprising: a monitor configured to collect a measured temperature of the electronic components and a measured temperature of a coolant through a plurality of temperature sensors; anda controller configured to control an RPM of the pump based on the measured temperatures and at least one of electronic component temperature maps, a coolant temperature map and a temperature difference map representing temperature differences between the electronic components and the coolant, the controller performing feed-forward (FF) control for increasing the RPM of the pump preemptively upon detection of continuation of a high torque and high temperature state for a predetermined period of time based on a motor torque reference value and an inverter temperature. 3. The apparatus of claim 1, wherein the electronic components include at least one of a motor, an inverter, an HV DC-DC converter, and an LV DC-DC converter, and the temperature maps include pump RPM command value information for the cooling control according to the measured temperatures. 4. The apparatus of claim 1, wherein the controller is further configured to derive the pump RPM command values for the measured temperatures of the electronic components and the coolant, collected by the monitor, based on the electronic temperature maps, the coolant temperature map, and the temperature difference map. 5. The apparatus of claim 1, wherein, when all the measured temperatures are lower than the over-temperature reference value and a vehicle speed is not low, the controller applies the maximum value of the pump RPM command values derived through the temperature maps as the final pump RPM command value. 6. The apparatus of claim 2, wherein the electronic components include at least one of a motor, an inverter, an HV DC-DC converter, and an LV DC-DC converter, and the temperature maps include pump RPM command value information for the cooling control according to the measured temperatures. 7. The apparatus of claim 2, wherein the controller derives pump RPM command values for the measured temperatures of the electronic components and the coolant, collected by the monitor, based on the electronic temperature maps, the coolant temperature map, and the temperature difference map. 8. The apparatus of claim 2, wherein the controller is configured to initiate the FF control for setting the RPM of the pump to higher than a normal value when the motor torque reference value is higher than a first reference value for judgment of a high torque and the inverter temperature is higher than a second reference value for judgment of a high temperature is maintained for a time corresponding to a third reference value. 9. The apparatus of claim 8, wherein the controller is configured to cancel the FF control and returns the pump RPM to the normal value when a state that the motor torque reference value is lower than a fourth reference value corresponding to a high torque state and the inverter temperature is lower than a fifth reference value corresponding to a high temperature state is maintained for a time corresponding to a sixth reference value. 10. The apparatus of claim 1, wherein the controller is configured to detect a transient operation period in which the vehicle is in idling and creeping speed regions and applies a predetermined low RPM as a final pump RPM command value. 11. The apparatus of claim 2, wherein the controller is configured to detect a transient operation period in which the vehicle is in idling and creeping speed regions and applies a predetermined low RPM as a final pump RPM command value. 12. A method for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump, comprising: collecting a measured temperature of the electronic components and a measured temperature of a coolant through a monitor;deriving pump RPM command values corresponding to the measured temperatures based on at least one of electronic component temperature maps, a coolant temperature map, and a temperature difference map representing temperature differences between the electronic components and the coolant;checking an over-temperature state with respect to each measured temperature based on each temperature map and setting an over-temperature set state and an over-temperature reset state of each measured temperature;performing FF control for increasing an RPM of the pump when a high torque and high temperature state is maintained for a predetermined period of time based on a motor torque reference value and an inverter temperature; andapplying a maximum value of the pump RPM command values derived through the temperature maps as a final pump RPM command value when an FF control condition is not satisfied and at least one of the measured temperatures corresponds to the over-temperature set state. 13. The method of claim 12, wherein the deriving of the pump RPM command values comprises deriving a pump RPM command value for at least one of a motor temperature, an inverter temperature, an HV DC-DC converter temperature, an LV DC-DC converter temperature, and the temperature differences between the electronic components and the coolant. 14. The method of claim 12, wherein the setting of the over-temperature set state and the over-temperature reset state comprises checking whether at least one of a motor temperature, an inverter temperature, an HV DC-DC converter temperature, an LV DC-DC converter temperature, and the temperature differences between the electronic components and the coolant corresponds to the over-temperature state. 15. The method of claim 12, wherein the performing of feed forward the FF control comprises: deriving a FF pump RPM command value as a value greater than a predetermined percent of a maximum pump RPM upon initiation of the FF control; andapplying a maximum value from among the pump RPM command values for the measured temperatures and the FF pump RPM command value as a final pump RPM command value. 16. The method of claim 12, further comprising controlling the final pump RPM command value to be a value lower than a predetermined percent of the maximum pump RPM when the FF control condition is not satisfied, each measured temperature corresponds to the over-temperature reset state and the vehicle is in a parking state, neutral state or low-speed state corresponding to a speed lower than a predetermined speed.
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이 특허에 인용된 특허 (7)
Claypole,George M.; Nemesh,Mark D.; Ziehr,Lawrence P.; Lombardo,Paul S., Air separator for low flow rate cooling systems.
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