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公开(公告)号：US20190271260A1
公开(公告)日：2019-09-05
申请号：US15911725
申请日：2018-03-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Eugene V. Gonze , Michael J. Paratore, JR. , Daniel J. Shepard
Abstract: A method for coolant pump flow rationalization using coolant pump parameters includes calculating a first pump coolant flow based on a coolant input pressure sensor signal and the coolant pump speed. Further, the method includes calculating a second pump coolant flow based on coolant pump current and coolant pump speed when the first pump coolant flow is greater than a predetermined threshold; and comparing the first pump coolant flow with the second pump coolant flow to rationalize the coolant pressure sensor signal.
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公开(公告)号：US20180320617A1
公开(公告)日：2018-11-08
申请号：US15585589
申请日：2017-05-03
Applicant: GM Global Technology Operations LLC
Inventor： Sami Ahmed , Michael A. Smith , Michelangelo Ardanese , Daniel J. Shepard
CPC classification number: F02D41/0245 , F01N3/035 , F01N3/2066 , F01N11/002 , F01P3/02 , F01P2003/021 , F01P2037/00
Abstract: An automotive vehicle includes an internal combustion engine that outputs exhaust gas from a cylinder, and an active thermal management system. The active thermal management system flows coolant around the cylinder thereby varying an exhaust temperature of the exhaust gas. An electronic engine controller controls the internal combustion engine and the active thermal management system. The engine controller generates a control signal to selectively operate the active thermal management system in a normal mode, a thermal increase mode, and a thermal decrease mode. The normal mode flows the coolant at a first coolant temperature. The thermal increase mode flows the coolant at a second coolant temperature greater than the first coolant temperature thereby increasing the exhaust temperature of the exhaust gas. The thermal decrease mode flows the coolant at a third coolant temperature less than the first coolant temperature thereby decreasing the exhaust temperature of the exhaust gas.
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公开(公告)号：US20180194196A1
公开(公告)日：2018-07-12
申请号：US15400487
申请日：2017-01-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Daniel J. Shepard , Lawrence P. Ziehr , Eugene V. Gonze
IPC: B60H1/02 , B60H1/00 , F01P9/06 , F01N3/20 , F01N3/10 , F01N3/021 , F01P9/02 , F02M26/22 , F02B37/16
CPC classification number: B60H1/025 , B60H1/00914 , B60H1/00921 , B60H1/04 , B60H2001/00928 , B60H2001/00949 , F01N3/021 , F01N3/103 , F01N3/2066 , F01P7/165 , F01P2060/04 , F01P2060/045 , F01P2060/08 , F01P2060/12 , F01P2060/16 , F01P2060/18 , F02B37/16 , F02M26/22 , F25B27/02 , F25B41/04 , Y02A50/2325 , Y02T10/144
Abstract: Thermal management systems for a vehicle powered by internal combustion engines (ICEs) are provided. Systems include a coolant circuit configured to circulate a coolant and transfer heat between the coolant and a heat consumer appurtenant to the vehicle, and a refrigerant circuit configured to circulate a refrigerant such that the refrigerant is capable of extracting heat from exhaust gas generated by the ICE and subsequently transferring heat to the coolant. The refrigerant circuit can include one or more of an exhaust gas heat exchanger, a compressor, a coolant heat exchanger, a condenser, and an evaporator. Heat transferred to the coolant via the coolant heat exchanger can be transferred to one or more heat consumers, including the ICE, a turbocharger, an oil heater, a heater core, an exhaust gas recirculation cooler, an axle, a differential, an exhaust gas treatment device, and a reductant reservoir for an SCR or SCRF device.
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公开(公告)号：US10578008B2
公开(公告)日：2020-03-03
申请号：US15911725
申请日：2018-03-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Eugene V. Gonze , Michael J. Paratore, Jr. , Daniel J. Shepard
Abstract: A method for coolant pump flow rationalization using coolant pump parameters includes calculating a first pump coolant flow based on a coolant input pressure sensor signal and the coolant pump speed. Further, the method includes calculating a second pump coolant flow based on coolant pump current and coolant pump speed when the first pump coolant flow is greater than a predetermined threshold; and comparing the first pump coolant flow with the second pump coolant flow to rationalize the coolant pressure sensor signal.
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公开(公告)号：US10415689B2
公开(公告)日：2019-09-17
申请号：US16116062
申请日：2018-08-29
Applicant: GM Global Technology Operations LLC
Inventor： Douglas Dickson , Lawrence P. Ziehr , James R. Salvador , Daniel J. Shepard
Abstract: A method of using a thermoelectric generator for warming a transmission on a vehicle having an internal combustion engine is provided. The method includes starting the internal combustion engine, thereby generating a hot exhaust gas; circulating coolant through a heating loop in fluid communication with the internal combustion engine and the thermoelectric generator; passing the hot exhaust gas through a hot-side of the thermoelectric generator and circulating the coolant through the cold-side of the thermoelectric generator, thereby transferring heat from the hot exhaust gas to the coolant and generating an electric current; and selectively powering an electric heating element with the electric current. The electric heating element is in thermal communication with a transmission fluid of the transmission. The coolant is circulated through the thermoelectric generator, by an auxiliary coolant pump powered by the electrical current, for a predetermined length of time after shutdown of the internal combustion engine.
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Patent Agency Ranking
公开(公告)号：US20190271252A1
公开(公告)日：2019-09-05
申请号：US15909150
申请日：2018-03-01
Applicant: GM Global Technology Operations LLC
Inventor： Daniel J. Shepard , Eugene V. Gonze , Douglas Dickson
Abstract: An automobile vehicle exhaust gas heat recovery system includes an engine having a turbocharger. A cooling pump provides coolant flow to the engine and the turbocharger. A combined coolant discharge header receives coolant discharged from the engine and the turbocharger. A main rotary valve receives coolant discharged from the combined coolant discharge header. The main rotary valve includes multiple rotary valves selectively distributing all of the coolant in the combined coolant discharge header to at least one of an engine heater, a heater core and a transmission oil heater during a cold start operation. An exhaust gas heat recovery (EGHR) device is positioned to receive the coolant discharged from any one, any two or all of the engine heater, the heater core and the transmission oil heater and in a path to return the coolant to the cooling pump during the cold start operation of the engine.
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公开(公告)号：US20180363760A1
公开(公告)日：2018-12-20
申请号：US16116062
申请日：2018-08-29
Applicant: GM Global Technology Operations LLC
Inventor： Douglas Dickson , Lawrence P. Ziehr , James R. Salvador , Daniel J. Shepard
CPC classification number: F16H57/0413 , B60H1/2225 , F01N5/025 , F01N9/00 , F01N2240/02 , F01P5/10 , F16H57/0415 , F16H57/0417 , F16H57/0475 , Y02T10/16
Abstract: A method of using a thermoelectric generator for warming a transmission on a vehicle having an internal combustion engine is provided. The method includes starting the internal combustion engine, thereby generating a hot exhaust gas; circulating coolant through a heating loop in fluid communication with the internal combustion engine and the thermoelectric generator; passing the hot exhaust gas through a hot-side of the thermoelectric generator and circulating the coolant through the cold-side of the thermoelectric generator, thereby transferring heat from the hot exhaust gas to the coolant and generating an electric current; and selectively powering an electric heating element with the electric current. The electric heating element is in thermal communication with a transmission fluid of the transmission. The coolant is circulated through the thermoelectric generator, by an auxiliary coolant pump powered by the electrical current, for a predetermined length of time after shutdown of the internal combustion engine.
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公开(公告)号：US20190284986A1
公开(公告)日：2019-09-19
申请号：US15922190
申请日：2018-03-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Eugene V. Gonze , Daniel J. Shepard , Lawrence P. Ziehr
Abstract: A vehicle propulsion system includes an engine having a coolant inlet and a coolant outlet, a coolant pump having an outlet in communication with the engine coolant inlet, a pressure sensor in fluid communication with the engine coolant outlet and that generates a pressure signal indicative of a pressure in the engine coolant outlet, and a controller in communication with the pressure sensor and the coolant pump. The controller is programmed to control a flow of coolant through the engine from the coolant pump based upon the pressure signal.
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公开(公告)号：US10415452B1
公开(公告)日：2019-09-17
申请号：US15909150
申请日：2018-03-01
Applicant: GM Global Technology Operations LLC
Inventor： Daniel J. Shepard , Eugene V. Gonze , Douglas Dickson
Abstract: An automobile vehicle exhaust gas heat recovery system includes an engine having a turbocharger. A cooling pump provides coolant flow to the engine and the turbocharger. A combined coolant discharge header receives coolant discharged from the engine and the turbocharger. A main rotary valve receives coolant discharged from the combined coolant discharge header. The main rotary valve includes multiple rotary valves selectively distributing all of the coolant in the combined coolant discharge header to at least one of an engine heater, a heater core and a transmission oil heater during a cold start operation. An exhaust gas heat recovery (EGHR) device is positioned to receive the coolant discharged from any one, any two or all of the engine heater, the heater core and the transmission oil heater and in a path to return the coolant to the cooling pump during the cold start operation of the engine.
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公开(公告)号：US20190277182A1
公开(公告)日：2019-09-12
申请号：US15918425
申请日：2018-03-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Daniel J. Shepard , Eugene V. Gonze , Michael J. Paratore, JR.
Abstract: A thermal management system for a vehicle propulsion system includes an engine having a coolant inlet and a coolant outlet, a coolant pump having an outlet in communication with the engine coolant inlet, a coolant valve that controls coolant flow from the engine coolant outlet to a transmission heat exchanger, and a coolant valve controller that selectively actuates the coolant valve during an initial transmission warm up condition, wherein the coolant valve controller selectively closes the coolant valve after a transmission temperature exceeds a target transmission temperature.
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