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    Steering system detecting vehicle motion states
    42.
    发明授权
    Steering system detecting vehicle motion states 有权

    公开(公告)号：US10099720B2

    公开(公告)日：2018-10-16

    申请号：US15434482

    申请日：2017-02-16

    Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

    Inventor： Rangarajan Ramanujam ,  Scott T. Sanford ,  Tejas M. Varunjikar ,  Tao Yang

    IPC: B62D5/04 ,  B62D15/02 ,  B62D6/02 ,  B62D6/10 ,  B62D6/00

    Abstract: Technical features are described for a steering system to compute a state flag value that is indicative of a vehicle motion state, such as an understeer or an oversteer condition. The steering system further generates a reference torque signal based on the state flag value, and generates a motor-assist torque signal based on the reference torque signal. The state flag value indicates the vehicle motion state in both a dynamic-state or a steady-state. Further, the steering system generates the reference torque signal based on the state flag value by blending a first rack force generated based on a vehicle-speed signal and motor angle, and a second rack force generated based on a motor torque and an input torque provided to a handwheel of the steering system.

    PAYLOAD ESTIMATION USING ELECTRIC POWER STEERING SIGNALS
    43.
    发明申请
    PAYLOAD ESTIMATION USING ELECTRIC POWER STEERING SIGNALS 审中-公开

    公开(公告)号：US20180015948A1

    公开(公告)日：2018-01-18

    申请号：US15717182

    申请日：2017-09-27

    Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

    Inventor： Tejas M. Varunjikar ,  Anthony J. Champagne ,  Qi Wang

    IPC: B62D6/10 ,  B62D5/04 ,  B62D6/00 ,  B62D15/02

    CPC classification number: B62D6/10 ,  B62D5/0463 ,  B62D5/0481 ,  B62D6/00 ,  B62D6/008 ,  B62D15/02

    Abstract: Technical solutions are described for a payload detection module that detects payload using one or more steering system control signals and generates an axle load factor. An example payload detection module includes a rack torque module to determine a rack torque, a reference model module to determine a reference rack torque for the steering system based on a load scale factor, and a load factor calculation module to compute the axle load factor based on a difference between the rack torque and the reference rack torque. Further, a blend factor module determines a load blend factor according to the axle load factor. Further yet, a signal combiner combines a blended nominal base assist and a blended highload base assist according to the load blend factor, the combination modifying a motor torque command, the motor torque command being sent to a motor to generate assist torque.

    INERTIA COMPENSATION FREQUENCY SHAPING FOR IMPROVED EPS SYSTEM STABILITY
    46.
    发明申请
    INERTIA COMPENSATION FREQUENCY SHAPING FOR IMPROVED EPS SYSTEM STABILITY 审中-公开
    用于改进EPS系统稳定性的INERTIA补偿频率形状

    公开(公告)号：US20170029019A1

    公开(公告)日：2017-02-02

    申请号：US14953289

    申请日：2015-11-27

    Applicant: Steering Solutions IP Holding Corporation

    Inventor： Michael K. Hales ,  Tejas M. Varunjikar ,  Shrenik P. Shah

    IPC: B62D5/04 ,  G07C5/02 ,  B62D6/00

    CPC classification number: B62D5/0463 ,  B62D6/008 ,  G07C5/02

    Abstract: A control system for a power steering system includes a motor; a control module in communication with the motor, the control module providing a compensated velocity loop command to the motor. The control module includes a stability compensation filter module that receives a vehicle speed and a velocity loop command, the stability compensation filter applies a second order filter on the velocity loop command to generate the compensated velocity loop command used by the motor.

    Abstract translation: 用于动力转向系统的控制系统包括马达; 与所述电动机通信的控制模块，所述控制模块向所述电动机提供经补偿的速度环路指令。 控制模块包括稳定补偿滤波器模块，其接收车辆速度和速度环路指令，稳定性补偿滤波器对速度环路命令施加二阶滤波器，以产生由电动机使用的补偿速度环路指令。

    PROVIDING ASSIST TORQUE WITHOUT HAND WHEEL TORQUE SENSOR
    47.
    发明申请
    PROVIDING ASSIST TORQUE WITHOUT HAND WHEEL TORQUE SENSOR 审中-公开
    提供辅助扭矩，不带手轮扭矩传感器

    公开(公告)号：US20140324294A1

    公开(公告)日：2014-10-30

    申请号：US14263162

    申请日：2014-04-28

    Applicant: Steering Solutions IP Holding Corporation

    Inventor： Anthony J. Champagne ,  Timothy W. Kaufmann ,  Kathryn L. Pattok ,  Tejas M. Varunjikar

    IPC: B62D5/04

    CPC classification number: B62D5/0463 ,  B62D5/0484 ,  B62D5/049 ,  B62D6/001

    Abstract: A method of controlling an electric power steering system of a vehicle is provided. The method determines that one or more hand wheel torque sensors of the vehicle are not enabled. The method generates an assist torque command by estimating a lateral acceleration of the vehicle based on a hand wheel angle and determining an amount of assist torque based on the estimated lateral acceleration. The method controls the electric power steering system using the generated assist torque command.

    Abstract translation: 提供一种控制车辆的电动助力转向系统的方法。 该方法确定车辆的一个或多个手轮扭矩传感器未启用。 该方法通过基于手轮角度估计车辆的横向加速度并基于所估计的横向加速度来确定辅助转矩的量来产生辅助转矩指令。 该方法使用生成的辅助转矩指令来控制电动助力转向系统。

    Systems and methods for obstacle proximity detection
    49.
    发明授权
    Systems and methods for obstacle proximity detection 有权

    公开(公告)号：US11599117B2

    公开(公告)日：2023-03-07

    申请号：US16796012

    申请日：2020-02-20

    Applicant: Steering Solutions IP Holding Corporation

    Inventor： Jian Sheng ,  Tejas M. Varunjikar ,  Zaki Ryne

    IPC: G05D1/02 ,  G01S13/86 ,  B62D6/00 ,  B60R11/04 ,  B60R21/0134 ,  G06K9/00 ,  G06V20/58 ,  G06V20/56 ,  G01S13/931

    Abstract: Embodiments for assisting steering of a vehicle responsive to detecting an object in a proximity of a vehicle are described. Embodiments described include: receiving an image of a lane indicator corresponding to a lane of travel of the vehicle from an image capturing device; determining, based on the image, reference values corresponding to a position of the lane indicator relative to the vehicle; associating each of the reference values to values used to locate a point within a reference frame related to a direction the vehicle is traveling; receiving position information of an object in an environment external to the vehicle from a radar sensor; determining, based on the values and the position information, an assigned lane of the object; detecting an impending change of the lane of travel of the vehicle to the assigned lane of the object; generating a steering control value based on the impending change.

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