[특허]State of charge catalyst heating strategy

State of charge catalyst heating strategy 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01N-003/00 F01N-003/10 B60K-006/20 F01N-003/20 F01N-009/00
출원번호	US-0571729 (2009-10-01)
등록번호	US-9410458 (2016-08-09)
발명자 / 주소	Gonze, Eugene V. Santoso, Halim G. Spohn, Brian Roos, Bryan Nathaniel
출원인 / 주소	GM Global Technology Operations LLC
인용정보	피인용 횟수 : 0 인용 특허 : 49

초록 ▼

A control system includes a state of charge module and a control module. The state of charge module receives a parameter associated with a battery in a vehicle and determines a state of charge of the battery based on the parameter. The control module activates a heater in a catalytic converter in an

대표청구항 ▼

1. An engine system, comprising: a heater for heating a catalytic converter in an exhaust system of a vehicle;a first electronic circuit configured to receive a parameter associated with a battery in said vehicle and determines a state of charge of said battery based on said parameter; anda second electronic circuit configured to: activate said heater when said state of charge is less than a first state of charge threshold; anddetermine said first state of charge threshold based on a volume of said catalytic converter and a measured temperature of an engine in said vehicle, wherein said measured temperature is measured during operation of said vehicle when said engine is off and an electric motor in said vehicle is being used to produce drive torque; anda third electronic circuit configured to start said engine when said state of charge is less than a second state of charge threshold and said measured temperature of said engine is less than an operating temperature, wherein said second electronic circuit determines at least one of said first and second state of charge thresholds such that sufficient power is available to increase a temperature of said catalytic converter to an activation temperature using said heater and to continue to activate said heater while said measured temperature of said engine is less than said operating temperature. 2. The engine system of claim 1 wherein said parameter includes at least one of a current supplied by said battery, a voltage supplied by said battery, a temperature of said battery, a capacity of said battery, a pressure in said battery, a specific gravity of an electrolyte in said battery, and a pH of said electrolyte. 3. The engine system of claim 1 wherein said second electronic circuit is configured to determine said first state of charge threshold further based on a temperature of said catalytic converter. 4. The engine system of claim 3 wherein said second electronic circuit is configured to determine said first state of charge threshold such that said temperature of said catalytic converter is greater than or equal to an activation temperature when said engine is started. 5. The engine system of claim 1 wherein said second electronic circuit is configured to determine said first state of charge threshold further based on a warm-up rate of said engine. 6. The engine system of claim 1 wherein said second electronic circuit is configured to: continue to activate said heater after said engine is started while said measured temperature of said engine is less than said operating temperature; anddeactivate said heater after said engine is started when said measured temperature of said engine is greater than or equal to said operating temperature. 7. The engine system of claim 1 wherein said second electronic circuit is configured to vary a power supplied to said heater based on a temperature of said catalytic converter. 8. The engine system of claim 1 wherein said second state of charge threshold is determined such that said state of charge does not decrease to zero. 9. The engine system of claim 1 wherein said second electronic circuit is configured to vary power supplied to said heater while said heater is activated. 10. The engine system of claim 1 wherein said first and second electronic circuits include at least one of an Application Specific Integrated Circuit (ASIC), a processor and memory, and a combinational logic circuit. 11. A method, comprising: receiving a parameter associated with a battery in a vehicle and determining a state of charge of said battery based on said parameter;determining a first state of charge threshold based on a volume of a catalytic converter in an exhaust system of said vehicle and a measured temperature of an engine in said vehicle, wherein said measured temperature is measured during operation of said vehicle when said engine is off and an electric motor in said vehicle is being used to produce drive torque;activating a heater in said catalytic converter and thereby heating said catalytic converter when said state of charge is less than said first state of charge threshold;starting said engine when said state of charge is less than a second state of charge threshold and said measured temperature of said engine is less than an operating temperature; anddetermining at least one of said first and second state of charge thresholds such that sufficient power is available to increase a temperature of said catalytic converter to an activation temperature using said heater and to continue to activate said heater while said measured temperature of said engine is less than said operating temperature. 12. The method of claim 11 wherein said parameter includes at least one of a current supplied by said battery, a voltage supplied by said battery, a temperature of said battery, a capacity of said battery, a pressure in said battery, a specific gravity of an electrolyte in said battery, and a pH of said electrolyte. 13. The method of claim 11 further comprising determining said first state of charge threshold further based on a temperature of said catalytic converter. 14. The method of claim 13 further comprising determining said first state of charge threshold such that said temperature of said catalytic converter is greater than or equal to an activation temperature when said engine is started. 15. The method of claim 11 further comprising determining said first state of charge threshold further based on a warm-up rate of said engine. 16. The method of claim 11 further comprising: continuing to activate said heater after said engine is started while said measured temperature of said engine is less than said operating temperature; anddeactivating said heater after said engine is started when said measured temperature of said engine is greater than or equal to said operating temperature. 17. The method of claim 16 further comprising starting said engine when said state of charge is less than a second state of charge threshold and said measured temperature of said engine is less than said operating temperature. 18. The method of claim 11 further comprising varying a power supplied to said heater based on a temperature of said catalytic converter. 19. The method of claim 11 further comprising determining said second state of charge threshold such that said state of charge does not decrease to zero. 20. The method of claim 11 further comprising varying power supplied to said heater while said heater is activated. 21. The method of claim 11 further comprising: continuing to activate said heater after said engine is started while said measured temperature of said engine is less than said operating temperature; anddeactivating said heater after said engine is started when said measured temperature of said engine is greater than or equal to said operating temperature.

이 특허에 인용된 특허 (49)

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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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State of charge catalyst heating strategy 원문보기

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State of charge catalyst heating strategy 원문보기

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