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公开(公告)号：US20230331213A1
公开(公告)日：2023-10-19
申请号：US17659278
申请日：2022-04-14
发明人： Maruthi Ravichandran , Alec Bolthouse , Francis Thomas Connolly , Minku Lee , Fazal Urrahman Syed , Daniel Colvin
CPC分类号： B60W20/40 , B60W20/20 , B60W30/18109 , B60W50/10 , B60W50/082 , B60W2510/083 , B60W2510/085
摘要： Systems and methods for operating a hybrid vehicle are presented. In one example, an integrated starter/generator (ISG) provides torque to restart an engine after the engine has been shut down and before engine speed is zero. An opening of a throttle is delayed to reduce driveline torque disturbances during engine restarting.
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公开(公告)号：US20220034274A1
公开(公告)日：2022-02-03
申请号：US16983239
申请日：2020-08-03
IPC分类号： F02D41/14 , G01M15/05 , G05B19/406 , F02D41/18 , F02D41/12
摘要： A method and system for operating a vehicle that includes an integrated starter/generator and a driveline disconnect clutch is described. In one example, the method estimates engine torque as a function of engine temperature during cold engine starts so that if an estimate of engine torque is in error, the integrated starter/generator may still successfully start the engine.
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公开(公告)号：US11225242B1
公开(公告)日：2022-01-18
申请号：US17037210
申请日：2020-09-29
发明人： Alec Bolthouse , Justin Panhans , Douglas Michael Smith , Minku Lee , Joshua Nicholas Dewalt , Andrew E. Burt , Fazal Urrahman Syed
摘要： A system and method for controlling a hybrid vehicle having an engine and a traction motor include operating the engine at an operating point selected based on system efficiency, operating the electric machine to provide an electric machine torque responsive to a difference between a driver demand torque and the engine torque associated with the operating point, and limiting a rate of change of the electric machine torque in response to a rate of change of the driver demand torque. The electric machine torque rate limit may vary continuously responsive to the rate of change of driver demand torque and whether the driver demand torque is increasing or decreasing.
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公开(公告)号：US20190367007A1
公开(公告)日：2019-12-05
申请号：US15996699
申请日：2018-06-04
发明人： Rajit Johri , Fazal Urrahman Syed , Minku Lee
摘要： A vehicle including an engine, an electric machine, a traction battery, and a controller is provided. The controller is programmed to, during acceleration or constant speed travel of the vehicle and responsive to state of charge of the battery falling below a first threshold, run the engine to charge the battery. The controller is further programmed to, during the running and responsive to first occurrence of the state of charge achieving a second threshold, accelerator pedal release, or braking of the vehicle, stop the engine. The controller may be further programmed to, during accelerator pedal release or braking of the vehicle and responsive to the state of charge falling below the first threshold, inhibit start of the engine. The controller may be further programmed to, during the inhibiting and responsive to acceleration or constant speed travel of the vehicle, run the engine to charge the battery.
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公开(公告)号：US10471951B2
公开(公告)日：2019-11-12
申请号：US15672588
申请日：2017-08-09
发明人： Rajit Johri , Fazal Urrahman Syed
IPC分类号： B60W20/40 , B60W20/30 , B60W20/50 , B60K6/22 , B60K6/38 , B60K6/387 , B60W50/029 , B60W10/02 , B60W10/11 , B60K6/48 , B60W50/02
摘要： Propulsion for a vehicle is provided by a hybrid powertrain that includes a torque converter coupled to an electric machine and selectively coupled to an engine. The hybrid powertrain further includes a controller programmed to, responsive to a loss of speed feedback of the electric machine while the engine is disconnected from the torque converter and the torque converter is open, operate one or more of a gearbox, the electric machine, and the engine based on an impeller speed of the torque converter derived from a torque of the electric machine and a speed of the vehicle.
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公开(公告)号：US10273895B1
公开(公告)日：2019-04-30
申请号：US15837650
申请日：2017-12-11
摘要： Systems and methods for operating a hybrid powertrain that includes an engine and a motor/generator are described. The systems and methods provide a way of determining whether or not an engine has stalled while a vehicle may be propelled via the motor/generator. In one example, an engine stall may be indicated responsive to a first estimated engine torque and a second estimated engine torque.
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公开(公告)号：US10160440B2
公开(公告)日：2018-12-25
申请号：US15184613
申请日：2016-06-16
IPC分类号： B60W20/13 , B60W20/15 , B60K6/387 , B60W10/02 , B60W10/06 , B60W10/08 , F16H61/14 , F16H63/46 , B60W50/029 , B60K6/48 , B60W30/18 , B60W20/50
摘要： Systems and methods for operating a hybrid powertrain that includes an engine and a motor/generator are described. The systems and methods adjust torque converter clutch opening responsive to whether or not a motor/generator is available to provide a negative torque to a driveline. Further, the motor/generator and the vehicle's engine are operated to provide a desired amount of driveline braking.
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公开(公告)号：US09937802B2
公开(公告)日：2018-04-10
申请号：US14596432
申请日：2015-01-14
CPC分类号： B60L11/02 , B60L7/14 , B60L11/123 , B60L11/14 , B60L11/18 , B60L11/1861 , B60L15/007 , B60L15/20 , B60L15/2009 , B60L15/2054 , B60L2210/14 , B60L2210/40 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/441 , B60L2240/443 , B60L2240/527 , B60L2240/547 , B60L2240/549 , Y02T10/6217 , Y02T10/645 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7077 , Y02T10/7225 , Y02T10/7241 , Y02T10/7275
摘要： A vehicle includes a traction battery, an electric machine, and a variable voltage converter. The variable voltage converter includes an inductor and is disposed electrically between the traction battery and electric machine. The vehicle also includes a controller programmed to issue duty cycle commands for the variable voltage converter based on a product of an AC component of current flowing through the inductor and a calibrated resistance.
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公开(公告)号：US20180067487A1
公开(公告)日：2018-03-08
申请号：US15259513
申请日：2016-09-08
CPC分类号： G05D1/0088 , G01S13/865 , G01S17/023 , G01S17/66 , G01S17/87 , G01S17/89 , G01S17/936 , G01S2013/9367 , G05D1/0242 , G05D1/0246 , G05D1/0248 , G05D1/0278
摘要： The present invention extends to methods, systems, and computer program products for perceiving roadway conditions from fused sensor data. Aspects of the invention use a combination of different types of cameras mounted to a vehicle to achieve visual perception for autonomous driving of the vehicle. Each camera in the combination of cameras generates sensor data by sensing at least part of the environment around the vehicle. The sensor data form each camera is fused together into a view of the environment around the vehicle. Sensor data from each camera (and, when appropriate, each other type of sensor) is fed into a central sensor perception chip. The central sensor perception chip uses a sensor fusion algorithm to fuse the sensor data into a view of the environment around the vehicle.
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公开(公告)号：US20170361831A1
公开(公告)日：2017-12-21
申请号：US15184613
申请日：2016-06-16
IPC分类号： B60W20/13 , B60W10/02 , B60W20/15 , B60W10/08 , F16H61/14 , F16H63/46 , B60K6/387 , B60W10/06
CPC分类号： B60W20/13 , B60K6/387 , B60K6/48 , B60K2006/4825 , B60W10/023 , B60W10/026 , B60W10/06 , B60W10/08 , B60W20/15 , B60W20/50 , B60W30/18109 , B60W30/18127 , B60W30/18136 , B60W50/029 , B60W2050/0297 , B60W2510/087 , B60W2510/1005 , B60W2510/107 , B60W2510/244 , B60W2510/246 , B60W2540/10 , B60W2710/024 , B60W2710/0627 , B60W2710/0666 , B60W2710/083 , B60Y2200/92 , B60Y2300/202 , B60Y2300/421 , F16H61/143 , F16H63/46 , F16H2061/147 , Y02T10/6221 , Y02T10/6252 , Y02T10/6286 , Y10S903/914 , Y10S903/946 , Y10T477/26 , Y10T477/6351
摘要： Systems and methods for operating a hybrid powertrain that includes an engine and a motor/generator are described. The systems and methods adjust torque converter clutch opening responsive to whether or not a motor/generator is available to provide a negative torque to a driveline. Further, the motor/generator and the vehicle's engine are operated to provide a desired amount of driveline braking.
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