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公开(公告)号：US20220136475A1
公开(公告)日：2022-05-05
申请号：US17085388
申请日：2020-10-30
Applicant: GM Global Technology Operations LLC
Inventor： Venkatesh Gopalakrishnan , Chandra S. Namuduri , Suresh Gopalakrishnan , Dongxu Li , Chunhao J. Lee , Neeraj S. Shidore , Norman K. Bucknor
Abstract: An energy storage system (ESS) for a vehicle propulsion system includes a first battery electrically coupled to a first voltage bus, a second battery electrically coupled to a second voltage bus, and a bidirectional DC/DC power converter electrically coupled to the voltage buses. A starter for cranking an engine is electrically coupled to the first voltage bus. A controller executes computer code stored in memory. The computer code is configured to operate the converter in a boost mode to transfer power from the second voltage bus to the first voltage bus, in response to the controller determining that: a power capability of the first battery is below a power demand on the first voltage bus; a state of charge of the first battery is below a state of charge threshold; or a temperature of the first battery is below a temperature threshold.
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Patent Agency Ranking
公开(公告)号：US11603005B2
公开(公告)日：2023-03-14
申请号：US17037974
申请日：2020-09-30
Applicant: GM Global Technology Operations LLC
Inventor： Venkata Prasad Atluri , Hanho Yun , Chandra S. Namuduri , Madhusudan Raghavan , Venkatesh Gopalakrishnan
Abstract: 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：US20210241006A1
公开(公告)日：2021-08-05
申请号：US16777202
申请日：2020-01-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Md Ashabul Anam , Venkatesh Gopalakrishnan , Taleah J. Slack
Abstract: A method to reduce a vehicle-hazard potential, the method including the steps of: detecting, via a sensor, one or more objects in a vehicle environment; determining whether these objects are of a specific type; and based on the specific type of the one or more objects, deterring the one or more objects from colliding with a vehicle.
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14.发明申请公开(公告)号：US20210129687A1
公开(公告)日：2021-05-06
申请号：US16671999
申请日：2019-11-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Venkata Prasad Atluri , Hanho Yun , Neeraj S. Shidore , Chandra S. Namuduri , Venkatesh Gopalakrishnan
Abstract: A system for utilizing a deployable flex range battery to augment a primary battery is provided. The system includes a flex electronics bay. The flex electronics bay is electrically connected to an electrical sub-system including the primary battery and includes a DC-DC converter operable to change a voltage of electric power and at least one battery connection terminal. The system further includes the deployable flex range battery removably connected to the at least one battery connection terminal and a flex electronics bay controller programmed to selectively supply electric power from the flex electronics bay to the electrical sub-system.
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15.发明授权公开(公告)号：US10424710B2
公开(公告)日：2019-09-24
申请号：US15723488
申请日：2017-10-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James R. Salvador , Anil Bika , Alok Warey , Venkatesh Gopalakrishnan
Abstract: An engine includes a cylinder liner. The cylinder liner includes an interior wall, an exterior wall, and a thermoelectric element disposed therebetween. The interior wall forms a cylinder bore forming part of a combustion chamber. The exterior wall is positioned adjacent a coolant jacket. The thermoelectric element is operable to generate an electric current in response to a temperature gradient between the interior wall, which is exposed to the high temperatures of the combustion chamber, and the exterior wall, which is exposed to the cooler temperatures of a coolant in the coolant jacket. An electric current in a circuit of the thermoelectric element may be controlled to affect a cylinder wall temperature. The circuit of the thermoelectric element may be opened, and the voltage of the thermoelectric element may be measured and used to calculate the cylinder wall temperature.
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公开(公告)号：US20160215692A1
公开(公告)日：2016-07-28
申请号：US14997619
申请日：2016-01-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alok Warey , Michael A. Potter , Venkatesh Gopalakrishnan
CPC classification number: F01P3/16 , F01P3/02 , F02B25/00 , F02B2075/025 , F02B2710/03 , F02F1/4214 , F02F1/425 , F02F2001/249
Abstract: A two-stroke engine includes a crankcase defining a cylinder bore, a piston moveably disposed within the cylinder bore, and a cylinder head that covers the cylinder bore. A wall surface of the cylinder bore, a piston combustion surface of the piston, and a head combustion surface of the cylinder head, cooperate to define a combustion chamber for combusting a fuel therein. A thermal conductivity reducing mechanism is disposed in thermal connectivity with at least one of the crankcase, the piston, and the cylinder head for reducing heat transfer from combusted fuel within the combustion chamber to at least one of the crankcase, the piston, and the cylinder head. The thermal conductivity reducing mechanism may include a layer of low conductivity material coating one of the surfaces defining the combustion chamber, or a void in the cylinder head and/or the crankcase adjacent the combustion chamber.
Abstract translation: 二冲程发动机包括限定气缸孔的曲轴箱，可移动地设置在气缸孔内的活塞和覆盖气缸孔的气缸盖。 气缸孔的壁表面，活塞的活塞燃烧表面和气缸盖的头部燃烧表面配合以限定用于燃烧燃料的燃烧室。 热导率降低机构设置成与曲轴箱，活塞和气缸盖中的至少一个的热连通性，用于减少从燃烧室内的燃烧燃料到曲轴箱，活塞和气缸中的至少一个的传热 头。 导热率降低机构可以包括涂覆限定燃烧室的表面之一的低传导率材料层，或者邻近燃烧室的气缸盖和/或曲轴箱中的空隙。
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