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公开(公告)号：US20190323474A1
公开(公告)日：2019-10-24
申请号：US15961198
申请日：2018-04-24
IPC分类号： F02N11/08
摘要： A starter system for a powertrain comprises a brushless electric starter motor operatively connectable to an internal combustion engine. The starter system includes both an ultracapacitor power pack and a battery power pack. A nominal voltage of the ultracapacitor power pack is greater than that of the battery power pack. A DC-DC converter operatively connects the battery power pack and the ultracapacitor power pack and converts direct current at a first voltage level of the battery power pack to direct current at a greater second voltage level of the ultracapacitor power pack. An electronic control system is operable to control the brushless electric starter motor to start the engine using power provided from the ultracapacitor power pack, and to control the DC-DC converter to recharge the ultracapacitor power pack using power provided from the battery power pack through the DC-DC converter. A method of controlling the starter system is included.
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公开(公告)号：US20190232941A1
公开(公告)日：2019-08-01
申请号：US15885866
申请日：2018-02-01
发明人： Yue-Yun Wang , Venkata Prasad Atluri , Dongxu Li , Chunhao J. Lee
CPC分类号： B60W20/10 , B60W10/023 , B60W10/06 , B60W10/08 , B60W30/18072 , B60W40/12 , B60W50/08 , B60W2050/0019 , B60W2510/0638 , B60W2510/104 , B60W2540/10 , B60W2710/025 , B60W2710/027 , B60W2710/0644 , B60W2710/0666 , B60W2710/083
摘要： Presented are model-based control systems for operating parallel hybrid powertrains, methods for making/using such systems, and motor vehicles with parallel hybrid powertrains and model-based torque and speed control capabilities. A method for controlling operation of a hybrid powertrain includes receiving a command signal for a hybrid powertrain operation associated with a driver input and a current operating mode of the powertrain. A desired output torque for executing the powertrain operation is then determined. The method determines if a speed differential between an engine speed of an engine and a torque converter output speed of a torque converter is less than a calibrated threshold; if so, the method responsively engages a clutch device to operatively connect the engine's output member to the transmission's input member. Engine torque is then coordinated with motor torque such that the sum of the engine and motor torques is approximately equal to the desired output torque.
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公开(公告)号：US09657705B2
公开(公告)日：2017-05-23
申请号：US14208434
申请日：2014-03-13
发明人： Alan G. Holmes , Michael G. Reynolds , Alexandru Rajala , Chandra S. Namuduri , Venkata Prasad Atluri
CPC分类号： F02N15/06 , B60K6/20 , B60K6/485 , F02N11/04 , F02N15/043 , F02N15/067 , F02N15/08 , F16H7/02 , Y02T10/6226 , Y10T74/138
摘要： A powertrain and an electromechanical apparatus are disclosed. A ring gear is attached to a first distal end of a crankshaft such that the ring gear and the crankshaft are rotatable in unison about a longitudinal axis. A motor-generator includes a motor/generator shaft being rotatable about a first axis spaced from the longitudinal axis. A starter mechanism includes a first starter gear coupleable to the motor/generator shaft and rotatable about a second axis spaced from the longitudinal axis. The first starter gear is movable along the second axis between a first position engaging the ring gear such that torque is transferred from the motor/generator shaft through the first starter gear and the ring gear to the crankshaft to start the engine, and a second position disengaged from the ring gear to rotatably disconnect the starter mechanism from the ring gear.
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公开(公告)号：US20170008469A1
公开(公告)日：2017-01-12
申请号：US15274531
申请日：2016-09-23
发明人： Alan G. Holmes , Venkata Prasad Atluri , Chandra S. Namuduri , Robert S. Conell , Michael G. Reynolds , Thomas Wolfgang Nehl , Bob R. Powell , Madhusudan Raghavan
CPC分类号： B60W10/26 , B60K6/485 , B60L1/003 , B60L11/14 , B60L11/1851 , B60L11/1868 , B60L15/2072 , B60L2210/10 , B60L2240/44 , B60L2240/486 , B60L2240/507 , B60L2260/26 , B60W30/1886 , F02N11/006 , F02N11/04 , F02N11/0866 , F02N11/087 , F02N2300/2002 , H02J7/1423 , Y02T10/6226 , Y02T10/645 , Y02T10/70 , Y02T10/7005 , Y02T10/7066 , Y02T10/7077 , Y02T10/7216 , Y02T10/7275 , Y02T90/16 , Y10S903/93 , Y10T477/23
摘要： An electrical system includes an engine, a motor-generator and a starter mechanism, and engine systems also include the engine. The electrical system includes a first energy storage device having a first voltage level and a second energy storage device having a second voltage level less than the first voltage level. The electrical system further includes a controller configured to control the motor-generator, the starter mechanism and first and second switching devices. Current from at least one of the first and second energy storage devices is delivered to the motor-generator when at least one of the first switching device is in a first closed state and the second switching device is in a second closed state such that the motor-generator transfers torque to the starter mechanism and the starter mechanism uses the torque to start the engine.
摘要翻译： 电气系统包括发动机，电动发电机和起动机构，发动机系统还包括发动机。 电气系统包括具有第一电压电平的第一能量存储装置和具有小于第一电压电平的第二电压电平的第二能量存储装置。 电气系统还包括控制器，其被配置为控制电动发电机，起动机构以及第一和第二开关装置。 当第一开关装置中的至少一个处于第一关闭状态并且第二开关装置处于第二关闭状态时，来自第一和第二能量存储装置中的至少一个的电流被传送到电动发电机，使得电动机 发电机将扭矩传递到起动机构，起动机构使用转矩启动发动机。
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公开(公告)号：US09475481B2
公开(公告)日：2016-10-25
申请号：US15155646
申请日：2016-05-16
发明人： Alan G. Holmes , Venkata Prasad Atluri , Chandra S. Namuduri , Robert S. Conell , Michael G. Reynolds , Thomas Wolfgang Nehl , Bob R. Powell , Madhusudan Raghavan
IPC分类号： B60W10/26
CPC分类号： B60W10/26 , B60K6/485 , B60L1/003 , B60L11/14 , B60L11/1851 , B60L11/1868 , B60L15/2072 , B60L2210/10 , B60L2240/44 , B60L2240/486 , B60L2240/507 , B60L2260/26 , B60W30/1886 , F02N11/006 , F02N11/04 , F02N11/0866 , F02N11/087 , F02N2300/2002 , H02J7/1423 , Y02T10/6226 , Y02T10/645 , Y02T10/70 , Y02T10/7005 , Y02T10/7066 , Y02T10/7077 , Y02T10/7216 , Y02T10/7275 , Y02T90/16 , Y10S903/93 , Y10T477/23
摘要： A powertrain includes a motor-generator and an auxiliary electric system. The powertrain also includes a first energy storage device disposed in a parallel electrical relationship with a motor-generator and an auxiliary electric system. Additionally, the powertrain includes a first switching device selectively transitionable between a first open state to electrically disconnect the first energy storage device from at least one of the motor-generator and the auxiliary electric system, and a first closed state to electrically connect the first energy storage device to at least one of the motor-generator and the auxiliary electric system. The motor-generator and the auxiliary electric system are operable regardless of the first switching device being in the first open and closed states.
摘要翻译： 动力总成包括电动发电机和辅助电气系统。 动力传动系还包括与电动发电机和辅助电气系统并联电连接的第一能量存储装置。 另外，动力系包括第一开关装置，其可选择性地在第一开启状态之间转换，以将第一能量存储装置与电动发电机和辅助电气系统中的至少一个电气断开，以及第一关闭状态以将第一能量 存储装置到电动发电机和辅助电气系统中的至少一个。 电动发电机和辅助电气系统可操作，而不管第一开关装置处于第一开启和关闭状态。
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公开(公告)号：US20220135219A1
公开(公告)日：2022-05-05
申请号：US17084967
申请日：2020-10-30
摘要： A system to distribute power in the operation of a drone vehicle includes a primary energy storage unit, a plurality of power boost modules that communicate electrically with the primary energy storage unit, and a plurality of propeller-motor modules, each of the plurality of propeller-motor modules being connected electrically to a respective power boost module of the plurality of power boost modules. One or more of the plurality of power boost modules provide on-demand additional energy to a respective propeller-motor module during the operation of the drone vehicle.
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公开(公告)号：US20220097540A1
公开(公告)日：2022-03-31
申请号：US17037974
申请日：2020-09-30
发明人： Venkata Prasad Atluri , Hanho Yun , Chandra S. Namuduri , Madhusudan Raghavan , Venkatesh Gopalakrishnan
摘要： An apparatus for charging an electric vehicle includes a plug command center having data identifying an availability of an amount of energy which is available for transfer from a first battery system of a first battery electric vehicle (BEV) to a second BEV. A charging adapter provides for energy transfer between a first plug of the first BEV and a second plug of the second BEV. A V2V charging controller communicates data identifying a battery system charge state of the first BEV and a battery system charge state of the second BEV and selects between multiple available charging options.
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公开(公告)号：US20220032803A1
公开(公告)日：2022-02-03
申请号：US16945123
申请日：2020-07-31
摘要： A charging system of an electrical automobile vehicle includes a converter unit and a first energy storage system of within a first automobile vehicle. A charging cable is releasably connected from the first energy storage system to a charging station or is releasably connected to a second energy storage system of a second automobile vehicle. A vehicle charging controller is connected to the converter unit and programmed to communicate with the charging station and to the second energy storage system. A plurality of low-loss switching devices of the converter unit are selectively operated by signals from the vehicle charging controller to position the plurality of low-loss switching devices in an on-state (ON) or an off-state (OFF) to control charging the first energy storage system from the charging station or charging the second energy storage system from the first energy storage system.
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公开(公告)号：US20190232793A1
公开(公告)日：2019-08-01
申请号：US15883801
申请日：2018-01-30
发明人： Venkata Prasad Atluri , Chandra S. Namuduri , Massimo Osella , Upali P. Mudalige , Nikhil L. Hoskeri
CPC分类号： B60L53/24 , B60L58/21 , B60L2210/10 , H02J7/0013 , H02J7/345 , Y10S903/93
摘要： An electric power system includes an energy recovery system that is operable to convert kinetic energy into electric energy at a first voltage. A primary energy storage device is electrically connected to the energy recovery system at the first voltage. A first voltage autonomous driving system load is disposed in a parallel circuit with the energy recovery system and the primary energy storage device. A bi-directional DC-DC converter is electrically connected to the energy recovery system and the primary energy storage device for converting the electric energy between the first voltage and a second voltage. A secondary energy storage device is electrically connected to the bi-directional DC-DC converter at the second voltage. A second voltage autonomous driving system load is disposed in a parallel circuit with the secondary energy storage device.
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公开(公告)号：US20180291859A1
公开(公告)日：2018-10-11
申请号：US15484537
申请日：2017-04-11
摘要： A powertrain includes a motor-generator that is coupled to an engine. A starter mechanism is coupled to the engine. A first energy storage device is disposed in a parallel electrical relationship with the starter mechanism. A second energy storage device is disposed in a parallel electrical relationship with the motor-generator. The electrical circuit exhibits a first electrical resistance between the first energy storage device and the motor-generator, and a second electrical resistance between the second energy storage device and the motor-generator. The first electrical resistance is greater than the second electrical resistance so that electrical energy from the motor-generator more easily flows to the second energy storage device than the first energy storage device, and the motor-generator more easily draws electrical energy from the second energy storage device than from the first energy storage device.
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