FAIL-SAFE CONTROL APPARATUS AND CONTROL METHOD FOR ELECTRIC POWER STEERING SYSTEM, AND STEERING SYSTEM

    公开(公告)号:US20190111964A1

    公开(公告)日:2019-04-18

    申请号:US16160569

    申请日:2018-10-15

    Inventor: Tae Woo KIM

    Abstract: Exemplary embodiments relate to a fail-safe control and a control method for an electric power steering system and a steering system. The fail-safe control apparatus of the electric power steering system may include a first sensing unit configured to sense motor position information, which is rotor position information of a motor that supplies an auxiliary steering force for a vehicle, and motor direction information, which is rotation direction information of the motor, a second sensing unit configured to sense steering torque information or steering angle information of the vehicle, a failure determination unit configured to compute a difference for the motor position information, estimate a direction value of the motor direction information, and perform computation between the motor position information and the steering torque information or the steering angle information to determine whether a failure has occurred, and a steering control unit configured to reduce or block an electric current output of the motor according to a result of the determination.

    BRAKE MASTER CYLINDER
    2.
    发明申请
    BRAKE MASTER CYLINDER 审中-公开
    制动主缸

    公开(公告)号:US20160325723A1

    公开(公告)日:2016-11-10

    申请号:US15146677

    申请日:2016-05-04

    Inventor: Dong-Koo KANG

    CPC classification number: B60T7/042 B60T7/085 B60T11/16

    Abstract: A brake master cylinder is disclosed. A brake master cylinder comprises a cylinder body having a hollow, a piston provided to reciprocate in the hollow, and a sensor module connected on the cylinder body and configured to sense a movement according to a reciprocating motion of the piston. And the sensor module includes a sensor housing coupled to a guide hole formed parallel with the hollow of the cylinder body and having a hollow therein in a length direction, a magnet installed to be slidable through the hollow of the sensor housing, and an actuating member coupled to the piston and configured to move the magnet according to a movement of the piston.

    Abstract translation: 公开了一种制动主缸。 制动主缸包括具有中空的缸体,设置成在中空中往复运动的活塞和连接在缸体上并构造成根据活塞的往复运动来感测运动的传感器模块。 并且传感器模块包括传感器壳体,该传感器壳体联接到与圆柱体的中空平行并且在长度方向上具有中空的引导孔,安装成能够通过传感器壳体的中空滑动的磁体和致动构件 联接到活塞并且构造成根据活塞的运动来移动磁体。

    Electronic parking brake system and control method thereof

    公开(公告)号:US12234874B2

    公开(公告)日:2025-02-25

    申请号:US17720284

    申请日:2022-04-13

    Inventor: Kangweon Kim

    Abstract: Disclosed is an electronic parking brake system including a piston provided to press a pair of brake pads disposed on opposite sides of a brake disk rotating together with a wheel of a vehicle, a nut member provided to press the piston, a spindle member provided to move the nut member, an electric motor provided to rotate the spindle member, an H-bridge having a pair of high-side switching elements and a pair of low-side switching elements to rotate the electric motor in a forward or backward direction, and a controller electrically connected to the H-bridge, wherein the controller is configured to detect a back electromotive force of the electric motor in a motor lock inspection mode for inspecting a lock failure of the electric motor and determine the lock failure of the electric motor based on a change in the detected back electromotive force.

    Actuator for electric parking brake

    公开(公告)号:US12233828B2

    公开(公告)日:2025-02-25

    申请号:US17601037

    申请日:2020-03-26

    Inventor: Woochul Lim

    Abstract: An actuator of an electric parking brake is disclosed. An actuator of an electric parking brake according to one embodiment of the present invention includes a driving unit which outputs a rotational force through a driving shaft, a first gear unit which receives the rotational force from the driving unit, a second gear unit including a rotation shaft which receives the rotational force from the first gear unit to rotate, and a driving shaft control unit which is disposed on the driving shaft, provides a degree of rotational freedom to the driving shaft during braking, and fixes the driving shaft to prevent reverse rotation of the driving shaft due to a reverse rotation torque when the braking is ended.

    ACTUATOR AND BRAKE SYSTEM INCLUDING THE SAME

    公开(公告)号:US20250058758A1

    公开(公告)日:2025-02-20

    申请号:US18603594

    申请日:2024-03-13

    Inventor: Daejune JUNG

    Abstract: An actuator may include: a first gear configured to rotate by a motor; a second gear operably connected to the first gear and configured to convert a rotary movement of the first gear into a linear movement; and a footer configured to move linearly together with the second gear to move a back plate of a brake pad. A stopper protrusion may be provided at one end portion of the first gear, the footer may have a stopper groove having a shape of a substantially circular arc or a partial circle such that the stopper protrusion rotating together with the first gear can be inserted in the stopper groove, and as the footer becomes closer to the one end portion of the first gear, the stopper protrusion may be inserted into the stopper groove to prevent the first gear from rotating.

    BRAKE SYSTEM INCLUDING A MASTER CYLINDER WITH AN ELASTIC PEDAL FEEL ELEMENT

    公开(公告)号:US20250058752A1

    公开(公告)日:2025-02-20

    申请号:US18934385

    申请日:2024-11-01

    Abstract: The present invention relates to a brake system comprising a brake pedal; a master cylinder including a first master chamber, a second master chamber, a first master piston, and a second master piston; a first hydraulic circuit; a second hydraulic circuit; a hydraulic pressure supplier including an actuator for pressurizing the first hydraulic circuit and the second hydraulic circuit depending on an operation of the brake pedal in a normal operating mode of the brake system; and an elastic pedal feel element arranged in the first master chamber to be in contact with the first master piston and the second master piston for generating a pedal force when the brake pedal is operated while the second master piston is locked in the normal operating mode.

    BRAKE ACTUATING UNIT FOR A BRAKE-BY-WIRE MOTOR VEHICLE BRAKE SYSTEM AND MOTOR VEHICLE BRAKE SYSTEM

    公开(公告)号:US20250058748A1

    公开(公告)日:2025-02-20

    申请号:US18935531

    申请日:2024-11-03

    Abstract: The present application relates to a brake actuating unit for a brake-by-wire motor vehicle brake system. The brake actuating unit comprises a housing, a first electrically controllable pressure supplying device, and a second electrically controllable pressure supplying device. The brake actuating unit further comprises a first connector for electrically connecting the brake actuating unit with a vehicle control unit and with a power network. The first connector is electrically connected with the first electrically controllable pressure supplying device. The brake actuating unit comprises a second connector for electrically connecting the brake actuating unit with the vehicle control unit and with the power network. The second connector is electrically connected with the second electrically controllable pressure supplying device. The brake actuating unit comprises a first cylinder and piston arrangement disposed within the housing and a piston rod for transmitting a displacement of a brake pedal to a piston.

    ELECTRONIC PARKING BRAKE SYSTEM AND CONTROL METHOD THEREOF

    公开(公告)号:US20250050848A1

    公开(公告)日:2025-02-13

    申请号:US18532758

    申请日:2023-12-07

    Inventor: Kisung JO

    Abstract: Disclosed is an electronic parking brake system including: an electronic parking brake configured to generate a braking force in a vehicle by a motor; and a controller configured to operate or release the electronic parking brake, wherein the controller is configured to collect, according to detection of a driver's intention to park, at least one of vehicle information, surrounding environment information, or parking mode setting information of the vehicle; set a target braking force for parking the vehicle based on the at least one of the vehicle information, the surrounding environment information, or the parking mode setting information, and control a parking operation of the vehicle to generate the target braking force by operating the electronic parking brake.

    METHOD AND SYSTEM FOR BATTERY MANAGEMENT OF ELECTRIC MOBILITY

    公开(公告)号:US20250050787A1

    公开(公告)日:2025-02-13

    申请号:US18506940

    申请日:2023-11-10

    Inventor: Chanheung PARK

    Abstract: A method and system for battery management of an electric mobility are provided. The method for battery management of the electric mobility may comprise: receiving information related to states of charge (SOCs) of a plurality of batteries installed in the electric mobility; determining whether a difference between a SOC of a first battery having a highest SOC and a SOC of a second battery having a lowest SOC among the plurality of batteries exceeds a predetermined threshold value; and controlling charge and/or discharge of at least one of the plurality of batteries by controlling power flow of at least one of a plurality of converters connected to the plurality of batteries.

Patent Agency Ranking