公开(公告)号：US20250060015A1

公开(公告)日：2025-02-20

申请号：US18806005

申请日：2024-08-15

Applicant: ZF Active Safety GmbH

Inventor： Volker Knop

IPC: F16D65/18 ,  F16D55/226 ,  F16D121/24 ,  F16D125/50

Abstract: A brake actuator unit having a brake housing, a spindle, and an axial spindle bearing, which receives the spindle and absorbs the axial reaction forces of the spindle when the brake is applied. The brake housing has a brake calliper having a pad support portion and a pot-shaped brake piston bearing portion, which is integrally connected to the pad support portion and has a circumferential wall and a bottom. When the brake is operated, the spindle bearing is supported axially on the bottom, and the circumferential wall has a sliding guide face against which the brake piston bears. An electromechanical brake having such a brake actuator unit is also provided.

公开(公告)号：US20250058759A1

公开(公告)日：2025-02-20

申请号：US18808154

申请日：2024-08-19

Applicant: ZF Active Safety GmbH

Inventor： Lukas Madzgalla ,  Jason Sauerberg ,  Florian Roessinger ,  Marco Becker

IPC: B60T13/74 ,  F16D55/00 ,  F16D55/226 ,  F16D65/00 ,  F16D65/18 ,  F16D121/24 ,  F16D125/40 ,  F16D125/50

Abstract: An actuator sub-assembly for an electromotive vehicle brake is set out, having a brake calliper, in which an intermediate space for receiving a brake rotor is provided. A spindle drive is also provided, which has a sliding actuation member for applying a brake pad to the brake rotor. The sub-assembly also includes an electro-motively driven spindle for axially moving the sliding actuation member, an electric motor which is drivingly coupled to the spindle by a gear mechanism unit, and a housing, in which the gear mechanism unit is accommodated. A plate-like frame portion, which has a receiving space for at least one gear stage of the gear mechanism unit is also arranged in the housing. Starting from the frame portion, at least one web-like continuation extends in the direction towards the brake calliper and is secured to the brake calliper.

公开(公告)号：US12097833B2

公开(公告)日：2024-09-24

申请号：US17276955

申请日：2019-09-12

Applicant: Hitachi Astemo, Ltd.

Inventor： Wataru Yokoyama ,  Daisuke Goto

IPC: B60T8/17 ,  B60T13/74 ,  B60T17/22 ,  F16D55/226 ,  F16D65/18 ,  F16D66/00 ,  F16D125/40 ,  F16D55/00 ,  F16D65/38 ,  F16D121/24 ,  F16D125/48 ,  F16D125/50 ,  F16D127/02

CPC classification number: B60T8/17 ,  B60T13/746 ,  B60T17/221 ,  F16D55/226 ,  F16D65/18 ,  F16D66/00 ,  B60T2201/12 ,  F16D2055/0029 ,  F16D2065/386 ,  F16D2066/003 ,  F16D2121/24 ,  F16D2125/40 ,  F16D2125/48 ,  F16D2125/50 ,  F16D2127/02

Abstract: Provided is an electric brake including: a brake mechanism configured to transmit, based on a braking request, a thrust force generated through drive of an electric motor to a piston configured to move brake pads to be pressed against a disc rotor; and an ECU for rear electric brake configured to control the drive of the electric motor, and to move, in a non-braking state, the piston to a predetermined clearance position at which a clearance between each of the brake pads and the disc rotor is a predetermined amount. The ECU for rear electric brake is configured to drive the electric motor so that a period from generation of the braking request to a start of the pressing of the disc rotor by the brake pads is a predetermined period regardless of a position of the piston at a time when the braking request is generated.

公开(公告)号：US11994182B2

公开(公告)日：2024-05-28

申请号：US17215707

申请日：2021-03-29

Applicant: HL MANDO CORPORATION

Inventor： Kristijan Tarandek ,  Hans-Jörg Feigel ,  I-Che Chiang

IPC: F16D55/227 ,  F16D65/18 ,  F16D65/56 ,  F16D121/24 ,  F16D125/36 ,  F16D125/50

CPC classification number: F16D65/18 ,  F16D55/227 ,  F16D65/567 ,  F16D2121/24 ,  F16D2125/36 ,  F16D2125/50

Abstract: The invention relates to an electro-mechanical brake with an actuator (5) for pressing at least one brake pad (3, 4) against a rotating friction surface. The actuator (5) comprises an electric motor (7) and a first transmission for converting a rotary motion of the electric motor (7) into a translational motion of the at least one brake pad (3, 4) for activating or releasing the electromechanical brake. Furthermore, the actuator (5) comprises a second transmission for converting a rotary motion of the same electric motor (7) into a further translational motion of the at least one brake pad (3, 4) to compensate for a wear of the at least one brake pad (3, 4), the first transmission and the second transmission being coupled so that the translational motion of the at least one brake pad (3, 4) caused by the first transmission and the further translational motion of the at least one brake pad (3, 4) caused by the second transmission add up to a resulting translation of the at least one brake pad (3, 4).

公开(公告)号：US20240157924A1

公开(公告)日：2024-05-16

申请号：US18281621

申请日：2021-10-15

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroshi SHIGETA

IPC: B60T13/74 ,  F16D55/00 ,  F16D55/2265 ,  F16D65/00 ,  F16D65/18 ,  F16D121/24 ,  F16D125/50

CPC classification number: B60T13/746 ,  F16D55/2265 ,  F16D65/0068 ,  F16D65/18 ,  F16D2055/0016 ,  F16D2121/24 ,  F16D2125/50 ,  F16D2250/0076

Abstract: A disc brake including a planetary gear speed reduction mechanism that improves the meshing condition of gears at activation. A sun gear (84) of a planetary gear speed reduction mechanism (55) employed in the disc brake includes a cylindrical supporting portion (112) configured to rotatably support a sun gear (82), an annular wall portion (111) disposed to face a large gear (88) at predetermined distance away in the axial direction of the large gear, and a reaction force receiving portion (114) disposed to overlap with the large gear as viewed from the radial direction of the large gear and configured to receive a reaction force produced by rotation of the sun gear (82). This improves the meshing condition of the planetary gear speed reduction mechanism and represses negative influences on performance, strength, operation noises and the like associated with transmission of rotation torque.

公开(公告)号：US11613238B2

公开(公告)日：2023-03-28

申请号：US16672528

申请日：2019-11-04

Applicant: HL MANDO CORPORATION

Inventor： Tony Alan Dodak

IPC: B60T13/74 ,  B60T1/06 ,  B60T8/28 ,  B62D5/04 ,  B62D15/02 ,  F16D65/097 ,  F16D65/16 ,  G01B7/315 ,  H02K1/14 ,  H02K1/276 ,  H02K21/16 ,  H02K29/03 ,  F16D55/14 ,  F16D121/24 ,  F16D125/50 ,  F16D127/06

Abstract: A vehicle steering system comprises: a motor assembly operably coupled to a steering rack, the motor assembly comprising a motor having a rotor and a motor position sensor configured to sense a rotor angle of the motor in a single-turn range; and a rotary-to-linear conversion mechanism operably coupled between the motor assembly and the steering rack, the rotary-to-linear conversion mechanism comprising a rotor operably coupled to the rotor of the motor. A processor calculates an absolute angular position of the pinion in a full-turn range of rotation of the pinion based on the sensed rotor angle of the motor and a pinion angle sensed by a pinion angle sensor in a single-turn range, or based on the sensed rotor angle of the motor and an angle of the rotor of the rotary-to-linear conversion mechanism sensed by an angular position sensor in the single-turn range.

公开(公告)号：US11590954B2

公开(公告)日：2023-02-28

申请号：US16828120

申请日：2020-03-24

Applicant: Nabtesco Corporation

Inventor： Masahiro Takahashi ,  Yuto Nakai

IPC: F16D55/08 ,  B60T13/74 ,  F16D3/04 ,  F16H1/32 ,  B60T7/22 ,  B60T8/17 ,  B60T17/22 ,  F16D66/02 ,  F16D65/18 ,  F16D66/00 ,  F16D121/24 ,  F16D125/32 ,  F16D125/50 ,  B60T1/06

Abstract: A brake device of the present invention includes: a wheel brake unit for braking a wheel; an electric motor for driving the wheel brake unit; a speed reducer for decelerating rotation of the electric motor; a rotation-linear motion converter for converting a rotational output of the speed reducer into a linear motion; and a braking force transmission member for transmitting the linear motion produced by the rotation-linear motion converter to the wheel brake unit.

公开(公告)号：US11572050B2

公开(公告)日：2023-02-07

申请号：US16931015

申请日：2020-07-16

Applicant: HYUNDAI MOBIS CO., LTD.

Inventor： Hyun Hwa Hong

IPC: B60T13/74 ,  F16D55/226 ,  B60T1/06 ,  F16D125/52 ,  F16D125/50 ,  F16D125/34 ,  F16D121/24

Abstract: A parking brake apparatus for a vehicle includes a motor section receiving electric power from an outside, and generating power; a power transmission section rotated by driving the motor section; a pair of pressing units having rotation axes that are disposed parallel to a rotation axis of the power transmission section, and pressing a brake pad by receiving power from the power transmission section; and a load transmission unit installed between the pair of pressing units, connected to each of the pair of pressing units, and transmitting a pressing load of any one of the pair of pressing units to the other pressing unit.

公开(公告)号：US11420606B2

公开(公告)日：2022-08-23

申请号：US16931134

申请日：2020-07-16

Applicant: HYUNDAI MOBIS CO., LTD.

Inventor： Moo Jin Choi

IPC: B60T13/74 ,  F16D55/226 ,  B60T1/06 ,  F16D125/52 ,  F16D125/50 ,  F16D125/34 ,  F16D121/24

Abstract: A parking brake apparatus for a vehicle includes a pair of pressing units receiving power from a driving unit, and pressing a brake pad; and a load transmission unit installed between the pair of pressing units, connected to each of the pair of pressing units, and transmitting a pressing load of any one of the pair of pressing units to the other pressing unit, wherein the load transmission unit comprises a pair of ring gear sections, and the pair of ring gear sections are meshed with each other.

公开(公告)号：US11287002B1

公开(公告)日：2022-03-29

申请号：US17132265

申请日：2020-12-23

Applicant: Hyo Seong America Corporation

Inventor： Seung Yuel Kong ,  Changho Lee

IPC: F16H1/46 ,  F16D65/16 ,  F16H55/06 ,  F16H57/02 ,  B60T13/74 ,  F16H57/031 ,  F16D121/24 ,  F16D125/50

Abstract: An electric brake actuator includes a housing, a three-stage planetary gear mechanism provided in the housing, the planetary gear mechanism having a first stage, a second stage, and a third stage that are sequentially meshed from one end to the other end of the planetary gear mechanism, and each stage of planetary gear mechanism comprising at least one planet gear, and a planet carrier supporting the planet gear; a motor provided in the housing; and at least one gear connected between the planetary gear mechanism and the motor, the at least one gear being arranged the motor to drive the planetary gear mechanism. The at least one planet gear of the first stage is made of a first material that is different from a second material of which the planet gear of the second stage or the planet gear of the third stage is made.