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公开(公告)号：US11261769B2
公开(公告)日：2022-03-01
申请号：US16749259
申请日：2020-01-22
IPC分类号： F01N1/16
摘要： Methods and systems are provided for adjusting a position of an exhaust valve that regulates engine exhaust noise. In one example, the position of the exhaust valve is adjusted according to a road grade estimate. The road grade estimate may be based on a vehicle's present position on a road or a position that is a distance away from the vehicle's present position.
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公开(公告)号：US10928275B1
公开(公告)日：2021-02-23
申请号：US16686574
申请日：2019-11-18
发明人： Sumanth Reddy Dadam , Robert Roy Jentz , Adam Joseph Krach , Douglas Raymond Martin , Allen Lehmen , Rohit Bhat , John Eric Rollinger
摘要： Methods and systems are provided for improving completion rates for engine system diagnostics for hybrid electric vehicles. In one example, a method may include in response to fueling of the engine of a hybrid electric vehicle being discontinued, establishing an air flow from an intake to an exhaust of the engine by relying on an electric motor to rotate the engine unfueled, and conducting a plurality of diagnostic monitors that rely on the air flow prior to reactivation of fueling of the engine. In this way, diagnostic monitor completion rates may be improved for hybrid electric vehicles, and fuel economy may be improved by coordinating the plurality of diagnostic monitors to be conducted during times when the engine is not fueled.
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公开(公告)号：US20190257235A1
公开(公告)日：2019-08-22
申请号：US16401051
申请日：2019-05-01
发明人： Michiel J. Van Nieuwstadt , Allen Lehmen , Douglas Martin , John Rollinger , Sumanth Reddy Dadam , Rohit Bhat
摘要： Methods and systems are provided for diagnostics of a gasoline particulate filter in an exhaust system after confirming that specific conditions are met including that an exhaust tuning valve is not degraded. In one example, a method may include indicating degradation of a hose coupled across a particulate filter responsive to a difference between a first differential pressure and a second differential pressure being greater than a threshold, the first differential pressure measured by a differential pressure sensor positioned in the hose responsive to a downstream exhaust tuning valve being fully open, the second differential pressure measured by the differential pressure sensor responsive to the exhaust tuning valve being fully closed.
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14.发明授权公开(公告)号：US12054163B2
公开(公告)日：2024-08-06
申请号：US17805182
申请日：2022-06-02
CPC分类号： B60W50/0098 , B60W10/22 , B60W10/30 , B60W40/08 , F02D13/0242 , G06V20/593 , G06V40/176 , B60W2710/30
摘要： A method for operating a vehicle that includes a passenger is described. In one example, the method adjusts vehicle suspension and exhaust system sound in response to characteristics of the passenger that are monitored via a camera and a microphone. The method may operate the vehicle suspension and exhaust system in a way that soothes the passenger.
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公开(公告)号：US11725612B1
公开(公告)日：2023-08-15
申请号：US17807028
申请日：2022-06-15
CPC分类号： F02M26/49 , F02D41/1446 , F02M26/14 , F02M26/47 , F02D2200/70
摘要： Systems and methods for determining whether or not a temperature sensor is degraded are presented. In one example, a determination of degradation of the temperature sensor is based on a difference between a temperature determined from output of the temperature sensor and an estimate of a temperature of a pressure sensor.
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公开(公告)号：US11715860B2
公开(公告)日：2023-08-01
申请号：US17211209
申请日：2021-03-24
发明人： Di Zhu , Sumanth Reddy Dadam , Vivek Kumar , Vinod Ravi
IPC分类号： H01M50/317 , H01M10/52 , B60K1/04 , H01M50/358 , B60K13/04 , F01N1/00 , F01N1/02
CPC分类号： H01M50/317 , B60K1/04 , B60K13/04 , H01M10/52 , H01M50/358 , F01N1/003 , F01N1/02 , H01M2220/20
摘要： A traction battery venting system includes, among other things, an engine exhaust system that discharges engine exhaust gas to an area outside an electrified vehicle. The engine exhaust gas is emitted from an internal combustion engine of the electrified vehicle. The system further includes a sound deadening device of the engine exhaust system, a traction battery, and a battery vent system that communicates battery vent byproducts to the engine exhaust system at a position that is downstream from the sound deadening device. The battery vent byproducts are emitted from the traction battery of the electrified vehicle.
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公开(公告)号：US20220311083A1
公开(公告)日：2022-09-29
申请号：US17211209
申请日：2021-03-24
发明人： Di Zhu , Sumanth Reddy Dadam , Vivek Kumar , Vinod Ravi
IPC分类号： H01M50/317 , H01M10/52 , H01M50/358 , B60K1/04
摘要： A traction battery venting system includes, among other things, an engine exhaust system that discharges engine exhaust gas to an area outside an electrified vehicle. The engine exhaust gas is emitted from an internal combustion engine of the electrified vehicle. The system further includes a sound deadening device of the engine exhaust system, a traction battery, and a battery vent system that communicates battery vent byproducts to the engine exhaust system at a position that is downstream from the sound deadening device. The battery vent byproducts are emitted from the traction battery of the electrified vehicle.
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公开(公告)号：US20220298941A1
公开(公告)日：2022-09-22
申请号：US17203279
申请日：2021-03-16
发明人： Sumanth Reddy Dadam , Vinod Ravi , Di Zhu , Vivek Kumar
摘要： Methods and systems are provided for adjusting a position of an exhaust valve that regulates engine exhaust noise. In one example, the position of the exhaust valve is adjusted according to a distance between a first vehicle and a second vehicle. The exhaust valve may be adjusted to reduce an exhaust noise level when the distance between the first vehicle and the second vehicle is less than a threshold distance.
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公开(公告)号：US11274637B1
公开(公告)日：2022-03-15
申请号：US17202129
申请日：2021-03-15
摘要： Methods and systems are provided for a high-pressure exhaust gas recirculation system. In one example, the high-pressure exhaust gas recirculation system comprises pressure sensors arranged on different sides of an EGR valve. Feedback from the pressure sensors are used to diagnose a EGR valve position sensor.
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公开(公告)号：US20210341356A1
公开(公告)日：2021-11-04
申请号：US16865939
申请日：2020-05-04
摘要： Methods and systems are provided for an EGR system reverse hose diagnostic. In one example, a method includes executing the reverse hose diagnostic in response to an EGR flowrate exceeding a threshold flow rate.
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