Engine control coordination with grille shutter adjustment and ambient conditions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24F-007/00
F01P-007/10
F02B-029/04
출원번호
US-0656542
(2012-10-19)
등록번호
US-9650942
(2017-05-16)
발명자
/ 주소
Surnilla, Gopichandra
Styles, Daniel Joseph
Norman, Kristofor Robert
Glugla, Chris Paul
Smith, Craig Alan
Whitehead, Joseph Patrick
출원인 / 주소
Ford Global Technologies, LLC
대리인 / 주소
Voutyras, Julia
인용정보
피인용 횟수 :
1인용 특허 :
10
초록▼
Methods and systems are provided for reducing corrosion of a charge air cooler and preventing engine misfire due to condensate formation. In response to an engine controller determining a condensate forming location within a charge air cooler, a grille shutter system is adjusted, moving the condensa
Methods and systems are provided for reducing corrosion of a charge air cooler and preventing engine misfire due to condensate formation. In response to an engine controller determining a condensate forming location within a charge air cooler, a grille shutter system is adjusted, moving the condensate region to a different location in the charge air cooler. Grille shutter orientation may also be controlled in response to vehicle operating conditions and condensate-forming weather conditions.
대표청구항▼
1. A method for controlling vehicle grille shutters of a vehicle having an engine controlled by an engine controller based on sensor signals, the engine having a charge air cooler, the method comprising: determining a dew point location of condensate formation within the charge air cooler via the en
1. A method for controlling vehicle grille shutters of a vehicle having an engine controlled by an engine controller based on sensor signals, the engine having a charge air cooler, the method comprising: determining a dew point location of condensate formation within the charge air cooler via the engine controller, where the engine controller and a plurality of sensors track the dew point location within the charge air cooler, the determined condensate formation location being determined relative to a center position along a horizontal axis of the charge air cooler along an intake air flow direction; andadjusting one or more actuators via the engine controller in response to the determined location,wherein the adjusting one or more actuators includes adjusting the actuators to adjust an opening of one or more grille shutters located at a vehicle front end in response to engine cooling parameters, the determined condensate formation location, and non-driven vehicle conditions. 2. The method of claim 1 further comprising increasing the opening of the one or more grille shutters in response to an increase in engine temperature above a threshold. 3. The method of claim 1 further comprising determining the dew point location of condensate formation within the charge air cooler via the engine controller, and further adjusting the one or more actuators via the engine controller wherein the one or more grille shutters are adjusted in response to the determined condensate formation location within the charge air cooler remaining within a positional range of the determined condensate formation location for a threshold duration and wherein the condensate formation location determined by the engine controller is a location along the horizontal axis, between an inlet and outlet of the charge air cooler. 4. The method of claim 3 further comprising determining the dew point location of condensate formation within the charge air cooler via the engine controller, further adjusting one or more actuators operating on the grille shutters in response to the determined condensate formation location, and further comprising increasing the opening of the one or more grille shutters to move the condensate formation location determined via the engine controller toward the inlet of the charge air cooler responsive to the positional range being closer to the outlet of the charge air cooler than the inlet for the threshold duration, and closing the opening of the one or more grille shutters to move the condensate formation location toward the outlet responsive to the positional range being closer to the inlet than the outlet for the threshold duration. 5. The method of claim 1, wherein the grille shutters are closed in response to weather conditions indicating humidity greater than a threshold. 6. The method of claim 1, wherein the grille shutters are closed in response to weather conditions indicating temperature less than a defined threshold. 7. The method of claim 1, wherein the grille shutters are closed in response to weather conditions indicating precipitation above a defined threshold. 8. The method of claim 1 further comprising determining the dew point location of condensate formation within the charge air cooler via the engine controller, further adjusting one or more actuators operating on the grille shutters, and further comprising adjusting the opening of the one or more grille shutters in response to the condensate formation location within the charge air cooler, wherein the grille shutters are closed in response to deceleration conditions, and maintained closed during the deceleration unless condensate formation is above a threshold, and wherein the grille shutters are opened in response to acceleration conditions, the acceleration immediately following the deceleration. 9. A method of controlling grille shutter orientation for a vehicle, comprising: determining a dew point location of condensate formation within a charge air cooler via an engine controller and sensors, where the engine controller and a plurality of sensors track the dew point location within the charge air cooler, the determined condensate formation location being determined relative to a center position along a horizontal axis of the charge air cooler along an intake air flow direction,adjusting one or more actuators operating on one or more grille shutters in response to the determined dew point location, the adjusting including closing the grille shutters from an open position responsive to the engine controller determining the condensate formation location within the charge air cooler remaining within a positional range of the determined dew point location for a duration greater than a defined time limit and condensate-forming weather conditions being reached, even if the vehicle is decelerating or engine coolant temperatures have not fallen below their respective lower thresholds,the adjusting further including increasing an opening of the one or more grille shutters to move the condensate formation location determined via the engine controller toward an inlet of the charge air cooler responsive to the positional range being closer to an outlet of the charge air cooler than the inlet for a threshold duration, and closing the opening of the one or more grille shutters to move the condensate formation location toward the outlet responsive to the positional range being closer to the inlet than the outlet for the threshold duration. 10. The method of claim 9 further comprising determining the dew point location of condensate formation within the charge air cooler via the engine controller, adjusting the one or more actuators operating on the grille shutters, and wherein the condensate formation location determined via the engine controller is based on conditions of the charge air cooler including two or more of inlet pressure of the charge air cooler, inlet temperature of the charge air cooler, outlet pressure of the charge air cooler, and outlet temperature of the charge air cooler. 11. The method of claim 9, wherein condensate-forming weather conditions include precipitation, ambient air temperature, and humidity outside respective thresholds, and wherein the condensate formation location within the charge air cooler determined via the engine controller is a location along the horizontal axis of the charge air cooler, between the inlet and outlet of the charge air cooler. 12. A method of controlling grille shutter orientation for a vehicle, comprising: determining a dew point location of condensate formation within a charge air cooler via an engine controller and sensors, the engine controller operatively communicating with actuators operating on one or more grille shutters of the vehicle;determining whether the dew point location stagnates at a specific location within the charge air cooler, where the specific location is a location along a horizontal axis of the charge air cooler between an inlet and outlet of the charge air cooler; andadjusting one or more actuators operating on the one or more grille shutters,wherein the adjusting includes opening the grille shutters with the actuators responsive to the determined dew point location of condensate formation within the charge air cooler stagnating at the specific location within the charge air cooler for a duration greater than a defined time limit, and if an original base shutter position was closed, even if an engine or engine coolant temperatures are not above their respective upper thresholds, andwherein the adjusting further includes opening the grille shutters with the actuators responsive to deceleration, even if the engine or engine coolant temperatures are not above their respective upper thresholds. 13. The method of claim 12 further comprising determining the dew point location of condensate formation within the charge air cooler via the engine controller based on conditions of the charge air cooler including inlet pressure and temperature of the charge air cooler and outlet pressure and temperature of the charge air cooler. 14. A method for controlling vehicle grille shutters, comprising: determining a dew point location of condensate formation within a charge air cooler via an engine controller and based on sensors, the engine controller operatively communicating with actuators operating on one or more grille shutters of the vehicle;adjusting one or more actuators operating on the one or more grille shutters, the adjusting including adjusting an opening of the one or more grille shutters located at a vehicle front end in response to the determined condensate formation location within the charge air cooler, wherein the condensate formation location is based on ambient condition data received from external to the vehicle. 15. The method of claim 14 further comprising determining the dew point location of condensate formation within the charge air cooler, further adjusting the one or more actuators operating on the one or more grille shutters, and further comprising adjusting the opening of the one or more grille shutters in response to vehicle acceleration and deceleration, and further in response to engine temperature and the condensate formation location determined via the engine controller where condensate forms in the charge air cooler, where the condensate location is a location along a horizontal axis of the charger air cooler, between an inlet and outlet of the charge air cooler. 16. The method of claim 15, wherein during a first lower condensate formation condition based on the ambient condition data, the grille shutters are opened during deceleration even if engine temperature is below a grille shutter closing threshold; and during a second condensate higher formation condition based on the ambient condition data, the grille shutters are closed during deceleration if engine temperature is below the grille shutter closing threshold. 17. The method of claim 15 further comprising boosting intake air via a turbocharger before it enters the charge air cooler in which the condensation formation occurs. 18. The method of claim 14 further comprising boosting intake air via a turbocharger before it enters the charge air cooler in which the condensation formation occurs. 19. The method of claim 14, wherein the ambient condition data received from external to the vehicle is received via an in-vehicle communications and entertainment system and wherein the condensate formation is at a determined location of condensate formed within the charge air cooler determined via the engine controller based on the ambient condition data.
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이 특허에 인용된 특허 (10)
Tai, Chun; Reppert, Todd Colin, Charge air cooler arrangement with cooler bypass and method.
Brinkmann, Bernd; Gralka, Bernhard; Nitsche, Thomas; Jolk, Christian; Hoyer, Helmut; Tietze, Julian, Methods and systems for charge air cooler operation.
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