公开(公告)号：US10677212B2

公开(公告)日：2020-06-09

申请号：US15967961

申请日：2018-05-01

Applicant: GM Global Technology Operations LLC

Inventor： Suresh Gopalakrishnan ,  Lei Hao ,  Chandra S. Namuduri ,  Paul S. Lombardo ,  Chunhao J. Lee ,  Alexandru Rajala ,  Neeraj S. Shidore ,  Farzad Samie ,  Norman K. Bucknor ,  Dongxu Li

IPC: F02N11/08

Abstract: A method of controlled stopping an internal combustion engine having a stop-start mode and starter assembly includes detecting when the stop-start mode is active. The method also includes monitoring current rotational speed and position of the engine. The method additionally includes determining when the current rotational position is within a predetermined range of a target stop rotational position and the current rotational speed is less than a threshold rotational speed, and afterward energizing the starter assembly to engage the engine. The method also includes establishing a time delay following energizing the starter assembly to confirm engagement of the starter assembly with the engine. Furthermore, the method includes applying a torque by the starter assembly to stop the engine at the target stop position. A vehicle powertrain employing the engine equipped with the stop-start mode, the starter assembly, and an electronic controller configured to execute the method is also provided.

公开(公告)号：US10471820B2

公开(公告)日：2019-11-12

申请号：US15583383

申请日：2017-05-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek F. Lahr ,  Farzad Samie ,  Norman K. Bucknor ,  Chunhao J. Lee ,  Dongxu Li ,  Chandra S. Namuduri ,  Alexandru Rajala

IPC: B60K6/48 ,  B60K6/36 ,  B60K6/38 ,  B60K6/40 ,  B60K6/52 ,  B60K6/387 ,  B60K17/28 ,  B60K17/346 ,  B60K23/08

Abstract: A drivetrain system for a vehicle is described, and includes an internal combustion engine, a geartrain, an electric machine, a power take-off unit, and a driveline. The internal combustion engine is coupled to the geartrain via a disconnect clutch and a torque converter. The geartrain includes a transmission and a differential gearset, including an output member of the transmission coupled to an input member of the differential gearset. The input member of the differential gearset is coupled to a rotor of the electric machine and the power take-off unit. The differential gearset is coupled to first and second intermediate driveshaft members of the driveline to transfer propulsion power to vehicle wheels that are arranged in a front-wheel configuration.

公开(公告)号：US20190338742A1

公开(公告)日：2019-11-07

申请号：US15967961

申请日：2018-05-01

Applicant: GM Global Technology Operations LLC

Inventor： Suresh Gopalakrishnan ,  Lei Hao ,  Chandra S. Namuduri ,  Paul S. Lombardo ,  Chunhao J. Lee ,  Alexandru Rajala ,  Neeraj S. Shidore ,  Farzad Samie ,  Norman K. Bucknor ,  Dongxu Li

IPC: F02N11/08

Abstract: A method of controlled stopping an internal combustion engine having a stop-start mode and starter assembly includes detecting when the stop-start mode is active. The method also includes monitoring current rotational speed and position of the engine. The method additionally includes determining when the current rotational position is within a predetermined range of a target stop rotational position and the current rotational speed is less than a threshold rotational speed, and afterward energizing the starter assembly to engage the engine. The method also includes establishing a time delay following energizing the starter assembly to confirm engagement of the starter assembly with the engine. Furthermore, the method includes applying a torque by the starter assembly to stop the engine at the target stop position. A vehicle powertrain employing the engine equipped with the stop-start mode, the starter assembly, and an electronic controller configured to execute the method is also provided.

公开(公告)号：US20190323473A1

公开(公告)日：2019-10-24

申请号：US15961137

申请日：2018-04-24

Applicant: GM Global Technology Operations LLC

Inventor： Chandra S. Namuduri ,  Lei Hao ,  Alexandru Rajala ,  Thomas W. Nehl

IPC: F02N11/08

Abstract: A starter assembly includes a multi-phase brushless electric motor including a stator, a rotor disposed on a rotatable shaft, and a motor endcap disposed at a first end of the stator. An electronic commutator assembly includes a sensing circuit, a control electronics subassembly, a power electronics subassembly and a heat sink. The sensing circuit is disposed adjacent to the second end of the rotatable shaft. The control electronics subassembly, the power electronics subassembly and the heat sink are disposed on disk-shaped devices arranged in a stacked configuration orthogonal to the axis defined by the rotatable shaft. The control electronics subassembly is disposed adjacent to the sensing circuit, and the power electronics subassembly is disposed adjacent to the control electronics subassembly. The control electronics subassembly is interposed between the power electronics subassembly and the sensing circuit. The heat sink is disposed adjacent to the power electronics subassembly.

公开(公告)号：US10011023B1

公开(公告)日：2018-07-03

申请号：US15458573

申请日：2017-03-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yhu-Tin Lin ,  Dooil Hwang ,  Jinglin Li ,  Alexandru Rajala

IPC: B25J15/00 ,  B25J15/06

CPC classification number: B25J15/0061

Abstract: An end-effector assembly includes a master boom, a frame rail coupled thereto, and at least one branch rail movably coupled to the frame rail by a swing branch lock. The swing arm is movably coupled to the at least one branch rail by a swing arm lock. Each of the swing branch lock and the swing arm lock further includes a clamp configured to movably secure the branch rail to the frame rail or the swing arm to the branch rail. A pivot shaft extends through the clamp and is configured to rotationally secure the clamp in place. A swing plate is secured to the pivot shaft and is configured for engagement with a configuration tool. A locking fastener extends through the swing plate and into the pivot shaft and is configured to lock and unlock the clamp in position.

公开(公告)号：US09573454B2

公开(公告)日：2017-02-21

申请号：US15051133

申请日：2016-02-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alan G. Holmes ,  Alexandru Rajala ,  Chandra S. Namuduri ,  Venkata Prasad Atluri

IPC: B60K6/485 ,  B60K6/22 ,  B60K6/40

CPC classification number: B60K6/22 ,  B60K6/40 ,  B60K6/485 ,  B60Y2200/92 ,  B60Y2300/192 ,  B60Y2400/70 ,  Y02T10/6226 ,  Y10S903/904 ,  Y10S903/909 ,  Y10T29/49233

Abstract: A powertrain for a vehicle includes an engine and a method of assembling the powertrain includes providing the engine. A starter mechanism is selectively operable to start the engine. A motor-generator includes an adapter to dispose the motor-generator and the starter mechanism in alternative assembly configurations being a first assembly configuration and a second assembly configuration. The first assembly configuration is when the starter mechanism is coupleable to the adapter to selectively transfer torque from the motor-generator through the adapter and the starter mechanism to start the engine. The second assembly configuration is when the starter mechanism is spaced from the adapter to operate independently of the motor-generator such that the starter mechanism selectively transfers torque to start the engine.

Abstract translation: 用于车辆的动力总成包括发动机，并且组合动力总成的方法包括提供发动机。 启动机构可选择性地操作以启动发动机。 电动发电机包括用于将电动发电机和起动机构配置为替代组装配置的适配器，其为第一组装配置和第二组装配置。 第一组合配置是当启动器机构与适配器耦合以选择性地传递来自电动发电机的转矩通过适配器和起动机构起动发动机时。 第二组合配置是当起动机构与适配器间隔开以独立于电动发电机工作，使得起动机构选择性地传递转矩来启动发动机。

公开(公告)号：US09481236B2

公开(公告)日：2016-11-01

申请号：US14208461

申请日：2014-03-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alan G. Holmes ,  Michael G. Reynolds ,  Alexandru Rajala ,  Chandra S. Namuduri

IPC: B60K6/20 ,  B60K6/485

CPC classification number: B60K6/485 ,  Y02T10/6226 ,  Y10S903/909

Abstract: A powertrain is 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 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 and second axes are spaced and substantially parallel to each other. 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.

Abstract translation: 公开了动力总成。 环形齿轮连接到曲轴的第一远端，使得环形齿轮和曲轴可围绕纵向轴线一致地旋转。 电动发电机包括可围绕与纵向轴线间隔开的第一轴线旋转的电动机/发电机轴。 启动器机构包括可耦合到马达/发电机轴并可围绕与纵向轴线间隔开的第二轴线旋转的第一起动机齿轮。 第一和第二轴线彼此间隔开并且基本平行。 第一启动齿轮可沿第二轴线在与环形齿轮啮合的第一位置之间移动，使得扭矩从马达/发电机轴通过第一起动器齿轮和齿圈传递到曲轴以起动发动机，第二位置 与环形齿轮脱离，以将起动机构与环形齿轮旋转断开。

公开(公告)号：US09302575B2

公开(公告)日：2016-04-05

申请号：US14208469

申请日：2014-03-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alan G. Holmes ,  Alexandru Rajala ,  Chandra S. Namuduri ,  Venkata Prasad Atluri

IPC: B60K6/485 ,  B60K6/40

CPC classification number: B60K6/22 ,  B60K6/40 ,  B60K6/485 ,  B60Y2200/92 ,  B60Y2300/192 ,  B60Y2400/70 ,  Y02T10/6226 ,  Y10S903/904 ,  Y10S903/909 ,  Y10T29/49233

Abstract: A powertrain for a vehicle and a method of assembling the powertrain are disclosed. An engine includes a crankshaft being rotatable about a longitudinal axis. A ring gear is attached to a first distal end of the crankshaft such that the ring gear and the crankshaft are rotatable in unison about the longitudinal axis. A starter mechanism is selectively operable to rotate the ring gear and the crankshaft to start the engine. A motor-generator includes an adapter selectively cooperating with the starter mechanism to dispose the motor-generator and the starter mechanism in alternative assembly configurations being a first assembly configuration and a second assembly configuration. The first assembly configuration is when the starter mechanism is coupleable to the adapter and the second assembly configuration is when the starter mechanism is spaced from the adapter to operate independently of the motor-generator.

Abstract translation: 公开了一种用于车辆的动力系和组合动力系的方法。 发动机包括可围绕纵向轴线旋转的曲轴。 环形齿轮附接到曲轴的第一远端，使得环形齿轮和曲轴可围绕纵向轴线一致地旋转。 起动机构可选择性地操作以使所述齿圈和所述曲轴旋转以起动所述发动机。 电动发电机包括选择性地与起动机构配合的适配器，以将电动发电机和起动机构配置为替代组装构型，其为第一组合构型和第二组合构型。 第一组装配置是当启动器机构可耦合到适配器时，并且第二组件配置是当起动机构与适配器间隔开以独立于电动发电机运行时。