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    METHOD FOR OPERATING A POWER STEERING SYSTEM
    3.
    发明申请
    METHOD FOR OPERATING A POWER STEERING SYSTEM 审中-公开

    公开(公告)号：US20180273087A1

    公开(公告)日：2018-09-27

    申请号：US15924247

    申请日：2018-03-18

    Applicant: Ford Global Technologies, LLC

    Inventor： Michael Schiebahn ,  Helmuth Bosch ,  Peter W. A. Zegelaar

    IPC: B62D5/04 ,  B62D5/06

    CPC classification number: B62D5/0481 ,  B62D1/286 ,  B62D5/0463 ,  B62D5/06 ,  B62D15/025

    Abstract: A method for operating a steering assist system of a motor vehicle, in which during a steering movement of the driver while driving the vehicle a steering assistance is determined. The steering assistance provided by an electro-hydraulic or electro-mechanical drive and may depend on the vehicle speed. The steering assistance providing a supportive force or a supporting moment to the steering system, wherein the provision of the steering assistance depends on the result of a judgment of whether there is a discrepancy between the determined steering assistance and the driver's steering intention based on a steering movement of the driver and a current value at least one steering parameter. A discrepancy exists between the steering assistance and the driver's intention to drive when a current value of a steering parameter exceeds a predetermined limit value. The steering parameters including a deviation between a steering assist torque and the driver steering torque exceeding a predetermined limit or the steering angle exceeding a predetermined limit. In such cases, the steering assistance is adjusted or prevented.

    DRIVING SUPPORTER
    4.
    发明申请
    DRIVING SUPPORTER 审中-公开

    公开(公告)号：US20180229770A1

    公开(公告)日：2018-08-16

    申请号：US15881112

    申请日：2018-01-26

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

    Inventor： Hiroaki KATAOKA ,  Taisuke HASEGAWA

    IPC: B62D15/02 ,  G06K9/00

    CPC classification number: B62D15/0265 ,  B62D1/286 ,  B62D15/025 ,  B62D15/026 ,  B62D15/029 ,  G05D1/00 ,  G06K9/00798 ,  G06K9/00805

    Abstract: A driving supporter includes a support inhibitor that inhibits support of driving when a steering-operation value is greater than a threshold value. The support inhibitor includes a threshold-value determiner that determines the threshold value to a value greater when a first object and a second object are present than when the first object is present, and the second object is absent. The first object has a relationship in which a relative positional relationship between the object and an own vehicle is a relationship in which a steering operation is estimated to be performed in a first direction in which the own vehicle avoids the object. The second object has a relationship in which the relative positional relationship is a relationship in which the steering operation is estimated to be performed in a second direction reverse to the first direction such that the own vehicle avoids the object.

    ELECTRIC POWER STEERING APPARATUS
    5.
    发明申请
    ELECTRIC POWER STEERING APPARATUS 审中-公开

    公开(公告)号：US20180154929A1

    公开(公告)日：2018-06-07

    申请号：US15571578

    申请日：2016-06-09

    Applicant: NSK LTD.

    Inventor： Sakae NEJO ,  Tomonori SATO

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

    CPC classification number: B62D5/0463 ,  B62D1/286 ,  B62D6/003 ,  B62D6/007 ,  B62D15/0235 ,  B62D15/0265 ,  B62D15/0285

    Abstract: An electric power steering apparatus that has a torque sensor which detects a steering torque, and a motor control apparatus to control the motor which applies an assist torque, by which steering is assisted, to a steering system of a vehicle, including: a function that switches a control system of the motor between an angle control system to control an angle corresponding to an angle control command value of an automatic steering mode and a torque control system to control a torque corresponding to a torque control command value of a manual steering mode in accordance with a predetermined switching trigger, wherein the steering apparatus variably sets a gradual-changing time corresponding to a command value difference between the angle control command value and the torque control command value when switching from the angle control system to the torque control system by using a gradual-changing.

    Method for Steering a Vehicle
    6.
    发明申请
    Method for Steering a Vehicle 审中-公开

    公开(公告)号：US20180154924A1

    公开(公告)日：2018-06-07

    申请号：US15887442

    申请日：2018-02-02

    Applicant: Bayerische Motoren Werke Aktiengesellschaft

    Inventor： Johannes ALBRECHT ,  Matthias SCHOELZEL

    IPC: B62D1/28 ,  B62D15/02

    CPC classification number: B62D1/286 ,  B62D6/008 ,  B62D15/025

    Abstract: A method is provided for steering a vehicle, wherein the forces for steering the wheels are generated by a steering torque, and wherein the steering torque is applied by a mechanical steering system and/or a steering actuator. The method includes the following steps: automatic phase: automatic steering of the vehicle in that a control unit calculates an automatic torque and actuates the steering actuator to apply the automatic torque, so that the steering torque corresponds to the automatic torque, wherein a driver intervention during the automatic phase and a manual torque applied to the steering wheel by the driver are detected, engagement phase: maintaining the calculated automatic torque as a steering torque by ignoring or compensating the manual torque until the manual torque has exceeded a defined threshold torque, wherein the threshold torque is greater than zero, and transfer phase: reducing the automatic torque after the threshold torque has been exceeded, wherein the steering torque corresponds to the sum of the manual torque and automatic torque.

    Vehicle Controller
    7.
    发明申请
    Vehicle Controller 审中-公开

    公开(公告)号：US20180057009A1

    公开(公告)日：2018-03-01

    申请号：US15668294

    申请日：2017-08-03

    Applicant: JTEKT CORPORATION

    Inventor： Shingo MAEDA ,  Terutaka TAMAIZUMI ,  Jun HASEGAWA ,  Masayuki KITA ,  Gempei NAKASONE ,  Hiromasa TAMAKI

    IPC: B60W30/18 ,  B60W30/12 ,  B60W50/08 ,  B60W50/10

    CPC classification number: B60W30/18163 ,  B60W30/12 ,  B60W50/087 ,  B60W50/10 ,  B62D1/286 ,  B62D15/025

    Abstract: An ECU includes a deviation calculating circuit an assist control circuit, an automatic steering control circuit including an intervention determination switching circuit, an adder, a current command value calculating circuit The intervention determination switching circuit includes a count amount calculating circuit, an adder, an immediately-preceding count amount output circuit, a switching determination circuit, and an output switching circuit. The count amount calculating circuit calculates a count amount having a positive value or a negative value based on a steering torque absolute value calculated by an absolute value switching circuit. The adder calculates a total count amount that is the total sum of a presently calculated count amount and an immediately-preceding count amount calculated in an immediately-preceding calculation cycle. The switching determination circuit determines a driver's intention to intervene in steering, based on whether the total count amount is equal to or greater than a count amount threshold value.

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