公开(公告)号：US09346345B2

公开(公告)日：2016-05-24

申请号：US14328149

申请日：2014-07-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  DYNALLOY, INC.

Inventor： Paul W. Alexander ,  Xiujie Gao ,  Alan L. Browne ,  Mark A. Voss ,  Derek L. Patterson ,  Lei Hao ,  Chandra S. Namuduri ,  James Holbrook Brown ,  Aragorn Zolno ,  John N. Owens ,  Alexander Millerman ,  Kevin B. Rober ,  Suresh Gopalakrishnan ,  Sanjeev M. Naik

IPC: B24D13/00 ,  B60H1/00 ,  B61D27/00 ,  B63J2/00 ,  B60J9/04 ,  B60H1/24

CPC classification number: B60J9/04 ,  B60H1/00735 ,  B60H1/241 ,  B60H1/249

Abstract: A vent assembly is disposed within an interior space of a vehicle for opening and closing fluid communication between the interior space and an exterior of the vehicle. The vent assembly includes a housing defining a plurality of openings and a plurality of vanes disposed in the openings. An actuator mechanism moves the vanes between an open position and a closed position, and includes a shaped memory alloy (SMA) member for actuating the vanes between the open and closed positions. The SMA member is activated when a hatch of the vehicle is opened to move the vanes into the open position and thereby open fluid communication between the interior space and the exterior to alleviate excessive air pressure buildup during closure of the hatch.

Abstract translation: 排气组件设置在车辆的内部空间内，用于打开和关闭内部空间和车辆外部之间的流体连通。 通气组件包括限定多个开口的壳体和设置在开口中的多个叶片。 致动器机构使叶片在打开位置和关闭位置之间移动，并且包括用于在打开位置和关闭位置之间致动叶片的成形记忆合金（SMA）构件。 当车辆的舱口被打开以使叶片移动到打开位置并且由此打开内部空间和外部之间的流体连通时，SMA构件被激活，以减轻在舱口闭合期间累积过大的空气压力。

公开(公告)号：US20250001902A1

公开(公告)日：2025-01-02

申请号：US18342811

申请日：2023-06-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yongjie Zhu ,  Chunhao J. Lee ,  Meng Jiang ,  Chen-fang Chang ,  Sanjeev M. Naik

IPC: B60L58/16 ,  B60L50/60 ,  G01R31/367 ,  H01M10/42 ,  H01M10/48

Abstract: Aspects of the disclosure include a battery management system that actively limits the operational voltage of a cell to avoid a cell pressure surge in response to an indicator of battery cell degradation. An exemplary battery management system can include a memory, computer readable instructions, and one or more processors that perform operations that include: measuring a first cell pressure of a cell of the battery pack at a reference voltage and measuring a second cell pressure of the cell of the battery pack at the reference voltage. A moving average of cell pressure progression is determined from the first cell pressure and the second cell pressure. Responsive to the moving average of cell pressure progression exceeding a cell pressure progression threshold, the cell of the battery pack is identified as a degraded cell and an estimate of remaining cycles for the degraded cell is determined.

公开(公告)号：US20240022161A1

公开(公告)日：2024-01-18

申请号：US17865482

申请日：2022-07-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hong Nguyen ,  Michael Z. Pieszala ,  Yilun Luo ,  Khorshed Mohammed Alam ,  Sanjeev M. Naik ,  Benjamin S. Ngu

IPC: H02M1/08 ,  H02M7/5395 ,  H03K17/16

CPC classification number: H02M1/08 ,  H02M7/5395 ,  H03K17/16

Abstract: A variable current gate driver for a transistor includes a first current control device having a first controllable output current. The first current control device is electrically connected between a first bus and an activator of the transistor, and a second current control device having a second controllable output current. The second current control device is electrically connected between the activator of the transistor and a second bus. A controller is operatively connected to the first and second current control devices to control the first and second controllable output currents to control the first and second current control devices to control activation of the transistor via the activator. The controller is operative to control the first and second current control devices to control a slew rate of the transistor.

公开(公告)号：US09863332B2

公开(公告)日：2018-01-09

申请号：US14709921

申请日：2015-05-12

Applicant: GM Global Technology Operations LLC

Inventor： Jason T. Davis ,  Melvin R. Terechenok, Jr. ,  Scott McLane ,  Sanjeev M. Naik ,  Kurt Alfred Wellenkotter ,  Douglas R. Verner ,  Joseph J. Moon ,  Kevin Andrew Gady

IPC: F02D13/08 ,  F02D13/02 ,  F02D41/04 ,  F02D41/20 ,  F02D41/22 ,  F01L13/00 ,  F01L1/047

CPC classification number: F02D13/08 ,  F01L13/0036 ,  F01L2001/0473 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2800/03 ,  F02D13/0207 ,  F02D41/042 ,  F02D41/221 ,  F02D2041/2055 ,  F02D2041/227 ,  Y02T10/18

Abstract: A system according to the principles of the present disclosure includes a switching period module and at least one of a valve lift control module and a start-stop control module. The switching period module determines a switching period that elapses as a valve lift actuator of an engine switches between a first valve lift position and a second valve lift position that is different than the first lift position. The switching period begins when a measured position of the valve lift actuator corresponds to the first lift position and the switching period ends when the measured position of the valve lift actuator corresponds to the second lift position. The valve lift control module controls the valve lift actuator based on the switching period. The start-stop control module determines whether to automatically stop the engine based on the switching period.

公开(公告)号：US09652980B2

公开(公告)日：2017-05-16

申请号：US14259367

申请日：2014-04-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wende Zhang ,  Sanjeev M. Naik

IPC: B60W30/09 ,  G08G1/00 ,  G08G1/16 ,  G06K9/00

CPC classification number: G08G1/00 ,  B60W30/09 ,  B60W2420/42 ,  G06K9/00798 ,  G06K9/00805 ,  G06K9/00818 ,  G06K9/00825 ,  G08G1/163

Abstract: A method for detecting a clear path of travel for a vehicle utilizing analysis of a plurality of images generated by a camera device located upon the vehicle includes monitoring the images. The images are analyzed including determining a clear path upon which a potential road surface can be estimated from other portions of the images that do not indicate a potential road surface, and determining an image of a traffic infrastructure indication. The method further includes determining the content of the traffic infrastructure indication, modifying the clear path based upon the content of the traffic infrastructure indication, and utilizing the modified clear path in navigation of the vehicle.

公开(公告)号：US20140257673A1

公开(公告)日：2014-09-11

申请号：US13786944

申请日：2013-03-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sanjeev M. Naik ,  Vijay Ramappan ,  Martino Casetti

IPC: F02D41/30

CPC classification number: F02D41/30 ,  F02D41/005 ,  F02D41/0062 ,  F02D41/12 ,  F02D41/266 ,  F02D41/402 ,  Y02T10/44 ,  Y02T10/47

Abstract: A fuel control system of a vehicle includes an injection control module and a command module. The injection control module determines a first target amount of fuel for a combustion event of an engine. A command module selectively command the injection control module to provide two fuel injections when a torque request decreases. In response to the command, the injection control module: determines second and third target amounts of fuel based on the first target amount; provides a first fuel injection during the combustion event based on the second target amount; and provides a second fuel injection during a compression stroke of the combustion event based on the third target amount.

Abstract translation: 车辆的燃料控制系统包括喷射控制模块和指令模块。 喷射控制模块确定用于发动机燃烧事件的燃料的第一目标量。 当扭矩请求减小时，指令模块选择性地命令喷射控制模块提供两次燃料喷射。 响应该命令，喷射控制模块基于第一目标量确定第二和第三目标燃料量; 基于第二目标量在燃烧事件期间提供第一燃料喷射; 并且在燃烧事件的压缩冲程期间基于第三目标量提供第二燃料喷射。

公开(公告)号：US20140053804A1

公开(公告)日：2014-02-27

申请号：US13798586

申请日：2013-03-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Allen B. Rayl ,  Randall S. Beikmann ,  Sanjeev M. Naik

IPC: F02D41/00

CPC classification number: F02D41/0087 ,  F01L13/0005 ,  F01L2013/001 ,  F02D17/02 ,  F02D41/021 ,  F02D41/0225 ,  F02D41/1401 ,  F02D2041/0012 ,  F02D2041/141 ,  F02D2041/1412 ,  F02D2041/1437

Abstract: A ranking module determines N ranking values for N predetermined cylinder activation/deactivation sequences of an engine, respectively. N is an integer greater than or equal to two. A cylinder control module, based on the N ranking values, selects one of the N predetermined cylinder activation/deactivation sequences as a desired cylinder activation/deactivation sequence for cylinders of the engine. The cylinder control module also: activates opening of intake and exhaust valves of first ones of the cylinders that are to be activated based on the desired cylinder activation/deactivation sequence; and deactivates opening of intake and exhaust valves of second ones of the cylinders that are to be deactivated based on the desired cylinder activation/deactivation sequence. A fuel control module provides fuel to the first ones of the cylinders and disables fueling to the second ones of the cylinders.

Abstract translation: 排序模块分别确定发动机的N个预定气缸启动/停用序列的N个排序值。 N是大于或等于2的整数。 气缸控制模块基于N个排序值，选择N个预定气缸启动/停用顺序中的一个作为发动机气缸的期望气缸启动/停用顺序。 气缸控制模块还：基于所需的气缸启动/停止顺序，激活要启动的第一气缸的进气门和排气门的打开; 并且基于期望的气缸激活/去激活顺序来停用要被去激活的第二个气缸的进气门和排气门的打开。 燃料控制模块向第一气缸提供燃料，并且禁止向第二气缸供油。