Electric linear motion actuator and electric brake system
    71.
    发明授权
    Electric linear motion actuator and electric brake system 有权
    电动直线运动执行器和电动制动系统

    公开(公告)号:US09091335B2

    公开(公告)日:2015-07-28

    申请号:US13954122

    申请日:2013-07-30

    申请人: Tatsuya Yamasaki

    发明人: Tatsuya Yamasaki

    摘要: In an electric linear motion actuator for transmitting torque of a rotary shaft (4) to planetary rollers (7) and thus to a linearly driven output member constituted by an outer race member (5), axial movement of a carrier (6) supporting the planetary rollers (7) is restricted, and the outer race member (5) is axially slidably fitted in a radially inner surface of a cylindrical portion (1a) of a housing (1) and is rotationally fixedly coupled to an object to be driven via keys (25) The planetary rollers (7) have their radially inner surfaces rotatably supported, on respective support pins (6c) of the carrier (6), and are radially inwardly biased by radial compression ring springs (21) wound around the support pins (6c) so as to envelop the support pins. The planetary rollers (7) are thus pressed against the radially outer surface of the rotary shaft (4).

    摘要翻译: 在用于将旋转轴(4)的扭矩传递到行星辊(7)并且因此传递到由外圈构件(5)构成的线性驱动的输出构件的电动直线运动致动器中,支撑 行星辊(7)受到限制,外座圈构件(5)可轴向滑动地嵌合在壳体(1)的圆柱形部分(1a)的径向内表面中,并且经由 键(25)行星滚子(7)的径向内表面可旋转地支撑在托架(6)的相应的支撑销(6c)上,并且通过围绕支撑销的径向压缩环弹簧(21)径向向内偏置 (6c),以包围支撑销。 因此,行星辊(7)被压靠在旋转轴(4)的径向外表面上。

    Electro-mechanical brake and vehicle having the same

    公开(公告)号:US11821480B2

    公开(公告)日:2023-11-21

    申请号:US17974719

    申请日:2022-10-27

    摘要: Provided are an electromechanical brake and a vehicle including the same. An electromechanical brake according to an embodiment of the present disclosure includes a pair of brake pads disposed at two opposite sides of a disc and include a hollow motor configured to provide rotational driving power and having an internal space penetratively formed in a direction in which a rotation axis extends, a nut configured to rotate about the rotation axis of the motor, a Power train coupled to a front side of the motor and configured to transmit the rotational driving power of the motor to the nut, and a pressing screw coupled to the nut and configured to advance or retreat toward the brake pad.

    Electric brake for vehicle
    76.
    发明授权

    公开(公告)号:US11821479B2

    公开(公告)日:2023-11-21

    申请号:US17572676

    申请日:2022-01-11

    摘要: A system for controlling an electric brake for a wheel rotor having a brake pad associated therewith includes a housing defining a passage. An assembly is provided in the passage and includes a spindle rotatable about an axis and a piston aligned with the brake pad and axially movable in response to rotation of the spindle. A planetary gear stage includes a sun gear, a ring gear, and planetary gears. A first motor is coupled to the sun gear. A second motor coupled to the ring gear. A control system is configured to, in response to a detected braking event, rotate the first motor in a first direction to supply torque to the sun gear while the second motor is rotated in a second direction at varying speeds to supply torque to the ring gear such that the piston is cyclically moved towards and away from the brake pad to modulate a braking force on the rotor.

    Clutch device
    77.
    发明授权

    公开(公告)号:US11796012B2

    公开(公告)日:2023-10-24

    申请号:US17582593

    申请日:2022-01-24

    申请人: DENSO CORPORATION

    摘要: A state changing unit is provided radially outward of a translation portion and movable in an axial direction relative to the translation portion. The state changing unit is in contact with or separated from the clutch. The state changing unit receives a force in the axial direction from the translation portion such that the state changing unit is pressed against the clutch. The state changing unit is capable of changing a state of the clutch to an engaged state or a disengaged state according to a position of the translation portion in the axial direction relative to the housing. A movement restriction portion is provided on the translation portion and located between the state changing unit and the clutch. The movement restriction portion contacts the state changing unit and restricts movement of the state changing unit relative to the translation portion toward the clutch.