[특허]Control system for a particulate matter filter

Control system for a particulate matter filter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01N-003/00
출원번호	US-0954892 (2007-12-12)
등록번호	US-8316638 (2012-11-27)
발명자 / 주소	Tornambe, Frank
출원인 / 주소	GM Global Technology Operations LLC
인용정보	피인용 횟수 : 0 인용 특허 : 35

초록 ▼

A method comprises determining a temperature of a particulate matter (PM) filter in communication with an exhaust gas from an engine; and reducing a power output of the engine when the PM filter is not being regenerated and the temperature exceeds a first predetermined temperature. A control module comprises a PM filter temperature determination module that determines the temperature of a PM filter in communication with an exhaust gas from an engine; and a reduced engine power module in communication with the PM filter temperature determination module that reduces the power output of the engine when the PM filter is not being regenerated and the temperature exceeds a first predetermined temperature.

대표청구항 ▼

1. A method, comprising: determining a temperature of a particulate matter (PM) filter disposed downstream from an engine without a catalytic oxidizer disposed in the PM filter or between the engine and the PM filter; andstarting to reduce a power output of the engine when the temperature of the PM filter exceeds a first predetermined temperature while the PM filter is not being actively regenerated. 2. The method of claim 1, wherein the determining includes measuring an inlet temperature at an inlet of the PM filter. 3. The method of claim 1, wherein the determining includes measuring an outlet temperature at an outlet of the PM filter. 4. The method of claim 1, wherein the reducing includes limiting fuel supplied to the engine. 5. The method of claim 4, further comprising reducing an engine speed to an idle speed when the temperature of the PM filter exceeds a second predetermined temperature greater than the first predetermined temperature. 6. The method of claim 5, further comprising gradually shutting down the engine when the temperature of the PM filter exceeds a third predetermined temperature greater than the second predetermined temperature. 7. The method of claim 4, further comprising gradually shutting off power to the engine when the temperature of the PM filter exceeds a second predetermined temperature greater than the first predetermined temperature. 8. The method of claim 1, wherein the reducing includes limiting an engine speed to an idle speed. 9. The method of claim 1, wherein the reducing includes gradually shutting off power to the engine. 10. A control module, comprising: a PM filter temperature determination module that determines a temperature of a PM filter disposed downstream from an engine without a catalytic oxidizer disposed in the PM filter or between the engine and the PM filter; anda reduced engine power module in communication with the PM filter temperature determination module that starts to reduce a power output of the engine when the temperature of the PM filter exceeds a first predetermined temperature while the PM filter is not being actively regenerated. 11. The control module of claim 10, wherein the PM filter temperature determination module is in communication with a temperature sensor at an inlet of the PM filter that measures an inlet temperature. 12. The control module of claim 10, wherein the PM filter temperature determination module is in communication with a temperature sensor at an outlet of the PM filter that measures an outlet temperature. 13. The control module of claim 10, wherein the reduced engine power module limits a quantity of fuel supplied to the engine. 14. The control module of claim 13, wherein the reduced engine power module limits an engine speed to an idle speed when the temperature of the PM filter exceeds a second predetermined temperature greater than the first predetermined temperature. 15. The control module of claim 14, wherein the reduced engine power module gradually shuts off power to the engine when the temperature of the PM filter exceeds a third predetermined temperature greater than the second predetermined temperature. 16. The control module of claim 13, wherein the reduced engine power module gradually shuts off power to the engine when the temperature of the PM filter exceeds a second predetermined temperature greater than the first predetermined temperature. 17. The control module of claim 10 wherein the reduced engine power module limits an engine speed to an idle speed. 18. The control module of claim 10, wherein the reduced engine power module gradually shuts off power to the engine.

이 특허에 인용된 특허 (35)

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Control system for a particulate matter filter 원문보기

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