[특허]Clogged filter detection system and method

Clogged filter detection system and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16N-029/00 F17D-001/00 B60K-006/48 B60W-010/30 B60W-020/00 F16H-057/04 B60K-017/28 B60K-025/00 B60K-025/02
출원번호	US-0735383 (2013-01-07)
등록번호	US-9429275 (2016-08-30)
발명자 / 주소	Long, Charles F. Taylor, Charles T. Summers, William J. Colter, Duane E.
출원인 / 주소	Allison Transmission, Inc.
대리인 / 주소	Woodard Emhardt Moriarty McNett & Henry LLP
인용정보	피인용 횟수 : 0 인용 특허 : 52

초록 ▼

A hydraulic system for a hybrid module which is located between an engine and a transmission includes a parallel arrangement of a mechanical pump and an electric pump. Each pump is constructed and arranged to deliver oil to other portions of the hydraulic system depending on the operational mode. Three operational modes are described including an electric mode, a transition mode, and a cruise mode. Included is a lube splitter valve which prioritizes the delivery of oil between downstream components and the motor (eMachine). The motor temperature is monitored and an elevated motor temperature provides an indication of a clogged oil filter.

대표청구항 ▼

1. A hydraulic system for a hybrid vehicle, the hybrid vehicle including a motor, said hydraulic system comprising: a sump with a supply of hydraulic fluid;a network of valves and conduits;pump means for drawing hydraulic fluid from said sump and delivery of said hydraulic fluid to said network;a fluid filter positioned in said network;a control valve positioned in said network downstream from said fluid filter;a primary output conduit connected to said control valve for supplying hydraulic fluid to a primary demand;a secondary output conduit connected to said control valve for supplying hydraulic fluid to a secondary demand, wherein said control valve is constructed and arranged to supply hydraulic fluid to said secondary demand only after said primary demand is satisfied; andtemperature monitoring means for monitoring an internal temperature of said motor and for determining if the fluid flow out of said fluid filter satisfies said primary demand. 2. The hydraulic system of claim 1 wherein said pump means includes a parallel arrangement of a mechanical pump and an electric pump. 3. The hydraulic system of claim 2 wherein said primary demand includes the delivery of hydraulic fluid to bearings of said hybrid vehicle. 4. The hydraulic system of claim 3 wherein said secondary demand includes the delivery of hydraulic fluid to a motor sleeve which is in flow communication with a motor of said hybrid vehicle. 5. The hydraulic system of claim 4 wherein said control valve is constructed and arranged as a spool valve. 6. The hydraulic system of claim 5 wherein said temperature monitoring means further includes a temperature sensor constructed and arranged to sense an internal temperature of said motor. 7. The hydraulic system of claim 6 which further includes a display unit which is constructed and arranged in data communication with said temperature sensor for display of said internal temperature. 8. The hydraulic system of claim 7 wherein said display unit is programmed with a threshold temperature. 9. The hydraulic system of claim 8 wherein said threshold temperature is adjustable. 10. The hydraulic system of claim 9 wherein said display unit is constructed and arranged to provide a warning when said internal temperature reaches said threshold temperature. 11. The hydraulic system of claim 1 wherein said primary demand includes the delivery of hydraulic fluid to bearings of said hybrid vehicle. 12. The hydraulic system of claim 1 wherein said secondary demand includes the delivery of hydraulic fluid to a motor sleeve which is in flow communication with a motor of said hybrid vehicle. 13. The hydraulic system of claim 1 wherein said control valve is constructed and arranged as a spool valve. 14. The hydraulic system of claim 1 wherein said temperature monitoring means further includes a temperature sensor constructed and arranged to sense an internal temperature of said motor. 15. The hydraulic system of claim 14 which further includes a display unit which is constructed and arranged in data communication with said temperature sensor for display of said internal temperature. 16. A hydraulic system for a vehicle, the vehicle including a motor, said hydraulic system comprising: a sump with a supply of fluid;an arrangement of valves and conduits;pump means for drawing fluid from said sump and delivery of said fluid to said arrangement;a filter positioned in said arrangement;a valve positioned in said arrangement downstream from said filter;a first output conduit connected to said valve for supplying fluid to a first demand; anda second output conduit connected to said valve for supplying fluid to a second demand, wherein said valve is constructed and arranged to supply fluid to said second demand only after said first demand has been met as determined by the temperature monitoring means which controls the operation of said valve based on the temperature of the motor. 17. The hydraulic system of claim 16 wherein said first demand includes the delivery of fluid to said motor. 18. The hydraulic system of claim 17 wherein said second demand includes the delivery of fluid to a motor sleeve which is in flow communication with said motor of said vehicle. 19. A method of determining a clogged fluid filter condition within a hydraulic system which is associated with a hybrid vehicle, the hybrid vehicle including a motor, said method comprising the following steps: providing a fluid filter as a part of said hydraulic system;providing a control valve downstream from said fluid filter as part of said hydraulic system, said control valve being in flow communication with said fluid filter;providing a primary output conduit connected to said control valve for supplying hydraulic fluid to a primary demand;providing a secondary output conduit connected to said control valve for supplying hydraulic fluid to a secondary demand;providing a temperature sensor to sense an internal temperature of said motor;monitoring said temperature sensor for monitoring an internal temperature of said motor and for determining if the fluid flow out of said fluid filter satisfies the primary demand; andwherein said control valve is constructed and arranged for supplying hydraulic fluid to said secondary demand only after satisfying said primary demand. 20. The method of claim 19 which further includes the step of setting a target internal motor temperature which is representative of adequate hydraulic fluid flow out of said fluid filter. 21. The method of claim 20 which further includes the step of comparing said internal motor temperature to said target internal motor temperature as a means to determine when said hydraulic fluid flow out of said fluid filter is not adequate. 22. A method of determining a clogged fluid filter condition within a hydraulic system which is associated with a hybrid vehicle, the hybrid vehicle including a motor, said method comprising the following steps: providing a fluid filter as a part of said hydraulic system;providing a control valve downstream from said fluid filter as part of said hydraulic system, said control valve being in flow communication with said fluid filter;providing a primary output conduit connected to said control valve for supplying hydraulic fluid to a primary demand;providing a secondary output conduit connected to said control valve for supplying hydraulic fluid to a secondary demand;setting a target internal motor temperature which is representative of adequate hydraulic fluid flow out of said fluid filter;connecting a temperature sensor to said motor for determining said internal motor temperature;monitoring the internal motor temperature; andcomparing said internal motor temperature to said target internal motor temperature as a means to determine when said hydraulic fluid flow out of said fluid filter is not adequate. 23. The method of claim 22 wherein said secondary demand includes a motor sleeve. 24. The method of claim 22 wherein said primary demand includes bearings. 25. The method of claim 22 wherein said control valve is a spool valve.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Clogged filter detection system and method 원문보기

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Clogged filter detection system and method 원문보기

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