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    Initialization of closed loop control for vehicle stopping
    5.
    发明授权
    Initialization of closed loop control for vehicle stopping 有权

    公开(公告)号：US10227021B2

    公开(公告)日：2019-03-12

    申请号：US15459570

    申请日：2017-03-15

    Applicant: GM Global Technology Operations LLC

    Inventor： Love Lor ,  Adam J. Heisel ,  Nathaniel S. Michaluk ,  Robert L. Morris

    IPC: B60L15/20 ,  B60K1/02 ,  B60K6/365 ,  B60W10/06 ,  B60W10/08

    Abstract: A road load module is configured to determine a road load torque to maintain zero vehicle acceleration. An initialization module is configured to determine an initial torque based on the road load torque. A closed loop (CL) module is configured to: when a CL state transitions from an inactive state to an active state, set a CL torque to the initial torque; and when the CL state is in the active state after transitioning to the active state, adjust the CL torque based on a difference between a target vehicle speed and a vehicle speed. A motor torque module is configured to determine a motor torque command based on the CL torque and a motor torque request determined based on an accelerator pedal position. A switching control module is configured to, based on the motor torque command, control switching of an inverter and apply power to an electric motor.

    Output bump management in a strong hybrid vehicle
    7.
    发明授权
    Output bump management in a strong hybrid vehicle 有权
    强力混合动力车辆的输出碰撞管理

    公开(公告)号：US09238461B1

    公开(公告)日：2016-01-19

    申请号：US14454967

    申请日：2014-08-08

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Chia-Shang Liu ,  Shaochun Ye ,  Robert L. Morris

    IPC: B60L11/00 ,  B60K1/00 ,  B60W20/00 ,  B60L15/20

    CPC classification number: B60W20/11 ,  B60L15/20 ,  B60L2260/24 ,  B60L2270/145 ,  B60W20/108 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275 ,  Y10S903/902

    Abstract: A method for managing output bump/clunk in a neutral state in a strong hybrid vehicle includes calculating a motor torque for an electric traction motor connected to a third node of a planetary gear set. The motor torque is calculated as a product of a predetermined inertia of the electric traction motor, the calculated acceleration of the engine, and a gear ratio of the planetary gear set. The calculated motor torque is commanded from the electric traction motor via a controller in a direction opposite the calculated acceleration of the output shaft, including transmitting a motor torque command to the electric traction motor for the duration of the neutral state. The vehicle includes the engine, a damper assembly, the transmission, and the controller.

    Abstract translation: 用于在强混合动力车辆中管理空档状态下的输出凸块/挡块的方法包括计算连接到行星齿轮组的第三节点的电牵引电动机的电动机转矩。 电动机转矩被计算为电力牵引电动机的预定惯量，所计算的发动机加速度和行星齿轮组的齿轮比的乘积。 计算出的电动机转矩由电动牵引电动机通过控制器在与计算出的输出轴的加速度相反的方向上被指令，包括在中性状态持续时间内将电动机转矩指令传送到牵引电动机。 车辆包括发动机，阻尼器组件，变速器和控制器。

    STATE TRANSITION CONTROL FOR A MULTI-MODE HYBRID POWERTRAIN
    8.
    发明申请
    STATE TRANSITION CONTROL FOR A MULTI-MODE HYBRID POWERTRAIN 有权
    多模混合动力系的状态转换控制

    公开(公告)号：US20140350803A1

    公开(公告)日：2014-11-27

    申请号：US13901679

    申请日：2013-05-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shaochun Ye ,  Robert L. Morris

    IPC: F16H61/68

    CPC classification number: F16H61/68 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60K2006/381 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W20/10 ,  B60W20/40 ,  B60W30/188 ,  B60W2050/001 ,  B60W2710/105 ,  Y02T10/6239 ,  Y02T10/6286

    Abstract: A powertrain includes a controller and gear sets, clutches, rotatable members, and torque actuators, e.g., an engine and one or more motor/generator units. Each torque actuator outputs a total control torque. The total control torque from a given actuator is used to achieve a target value, which is a torque value of a member of one of the gear sets, clutches, or rotatable members. The controller includes proportional-integral (PI) control logic. The total control torque is the sum of proportional and integral torque terms from the PI control logic. The controller detects a predetermined vehicle event, for instance a change in a hybrid range state or a control gain reduction event, and then automatically resets the integral control torque term(s) for the physical target value during the requested vehicle event to thereby maintain the total control torque for the same target value through the execution of the predetermined vehicle event.

    Abstract translation: 动力系包括控制器和齿轮组，离合器，可旋转构件和扭矩致动器，例如发动机和一个或多个电动机/发电机单元。 每个扭矩执行器输出总控制扭矩。 使用来自给定致动器的总控制扭矩来实现目标值，其是齿轮组，离合器或可旋转构件中的一个的构件的扭矩值。 控制器包括比例积分（PI）控制逻辑。 总控制扭矩是来自PI控制逻辑的比例积分转矩项和积分转矩项的总和。 控制器检测预定的车辆事件，例如混合范围状态或控制增益减小事件的变化，然后在所请求的车辆事件期间自动复位物理目标值的整体控制转矩项，从而保持 通过执行预定车辆事件来达到相同目标值的总控制转矩。

    Lash angle determination
    10.
    发明授权
    Lash angle determination 有权

    公开(公告)号：US11970063B2

    公开(公告)日：2024-04-30

    申请号：US17398463

    申请日：2021-08-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Noah Jon Lovins-Wilusz ,  Robert L. Morris

    IPC: B60L15/20 ,  B60L3/12 ,  G05B19/042 ,  G06F17/18

    CPC classification number: B60L15/20 ,  B60L3/12 ,  G05B19/042 ,  G06F17/18

    Abstract: Examples described herein provide a computer-implemented method that includes calculating, by a processing device, a motor acceleration error based at least in part on a motor torque and a motor speed. The method further includes calculating, by the processing device, a regression fit line based at least in part on the motor acceleration error. The method further includes identifying, by the processing device, a zero point using the regression fit line. The method further includes comparing, by the processing device, the zero point to a datum reference to determine a difference. The method further includes integrating, by the processing device, the difference to determine the lash angle. The method further includes controlling, by the processing device, the motor based at least in part on the lash angle.

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