Hyundai Mobis Co., Ltd.

Chi Hoon Jo

Byung Su Kim

Min Kyu Jung

Byeung Su Kim

A brake apparatus for a vehicle may include: a housing; a pair of pressing parts installed inside the housing, and configured to receive power from a driver and press a brake pad; a load transfer part installed between the pair of pressing parts, and configured to transfer a pressing load of any one of the pair of pressing parts to the other pressing part; and a constraint part installed in the housing such that a length thereof is adjustable, and configured to selectively constrain an operation of the load transfer part depending on a protruding length thereof into the housing.

Brake apparatus for vehicle

A parking brake apparatus including a bolt screw rotated by a driving force transmitted from an actuator, one or more pistons disposed at one side or both sides of the bolt screw, one or more screw nuts accommodated in the piston, screwed to an end of the bolt screw, and moved along with the rotation of the bolt screw, one or more elastic members disposed around the screw nut within the piston, and elastically deformed, in response to a displacement of the screw nut while the screw nut is moved by a set distance, to press the piston toward a shoe, and a load transfer unit disposed in the piston, and configured to transmit, to the piston, a displacement of the screw nut when the screw nut moves more than the set distance, thereby pressing the piston toward the shoe.

Parking brake apparatus

A drum brake apparatus includes a housing; a main braking unit installed on one part of the housing, and driven by a hydraulic pressure and pressing a shoe, during main braking; a parking braking unit installed on the other part of the housing, and driven by an electromotive force of an actuator and pressing the shoe, during parking braking; and a locking member locked to the housing through the actuator and a back plate, and fastening the actuator and the housing to the back plate.

Drum brake apparatus

A drum brake apparatus includes a housing; a main braking unit installed on one part of the housing, and driven by a hydraulic pressure and pressing a shoe, during main braking; and a parking braking unit installed on the other part of the housing, and driven by an electromotive force of an actuator and pressing the shoe, during parking braking, the parking braking unit includes a bevel gear section disposed in the housing while having a structure of a bevel gear, and rotated in association with the actuator; and a rod section connected with the bevel gear section, and moved out of the housing in association with the bevel gear section and pressing the shoe.

A drum brake apparatus includes: a housing; a main braking part installed on one side of the housing, and driven by hydraulic pressure so as to press a shoe during main braking; and a parking braking part installed on another side of the housing, and driven by an electromotive force of an actuator so as to press the shoe during parking braking. The housing includes: a housing part; a piston housing part formed on the housing part, having a hollow portion formed therein, and having the main braking part installed therein; and a rod housing part formed on the housing part, having a hollow portion formed therein, and having the parking braking part installed therein. The rod housing part is disposed at a location farther from a rotation center of the shoe than the piston housing part.

A drum brake apparatus includes: a housing; a main braking unit disposed on a first portion of the housing, and the main braking unit configured to be, during main braking, driven by a hydraulic pressure and pressing a shoe; a parking braking unit disposed on a second portion of the housing, the parking braking unit configured to be, during parking braking, driven by an electromotive force of an actuator and pressing the shoe; a first locking member configured to couple the housing to one surface of a back plate; and a second locking member configured to couple the actuator to the housing on another surface side of the back plate.

An electronic parking brake device may include: a plate part having a brake shoe rotatably mounted thereon; a housing part mounted on the plate part and configured to guide hydraulic pressure; a motor part mounted on the housing part, and driven when power is applied thereto; a piston part mounted on the housing part, and moved by hydraulic pressure so as to operate the brake shoe; and an operating part embedded in the housing part, and driven by the motor part so as to move the piston part.

Electronic parking brake device

A parking brake apparatus for a vehicle includes a pair of pressing units receiving power from a driving unit, and pressing a brake pad; 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; and a load transmission unit restraint unit selectively restraining driving of the load transmission unit.

Parking brake apparatus for vehicle

A parking brake apparatus may include: a driving part; a driving gear rotatably connected to the driving part; a gear shaft engaged with the driving gear so as to be rotated by the driving gear; a pair of pistons disposed on both sides of the gear shaft and connected to brake shoes, respectively; a pair of nuts disposed in the respective pistons, and screwed to the gear shaft; an elastic member installed between the piston and the nut so as to pressure the nut toward the brake shoe; a holder installed in the piston so as to support the elastic member; and a constraint ring installed in the piston so as to constrain the holder.

Disclosed herein is an electronic brake apparatus that includes a spring pack, a first piston in which the spring pack is mounted, a bolt screw rotated in conjunction with a motor and having one end in point contact with the spring pack, a fixing member configured to bind the bolt screw to the first piston, and a second piston screwed to the other end of the bolt screw.

Electronic brake apparatus

A method for detecting a fail of an electronic parking brake may include: detecting, by an electronic control unit (ECU), a current applied to a motor during a parking operation of an eDIH parking brake, and detecting a current inflection point at which the slope of the current is changed, the slope of the current having started to rise in a load generation section following a no-load section after a starting current of the motor was generated; and comparing, by the ECU, the current value of the detected current inflection point to a current value of a preset reference current inflection point, and recognizing that a fail occurred during the parking operation of the eDIH parking brake, when the current value of the detected current inflection point is different by a preset error range or more from the current value of the reference current inflection point.

Growing community of inventors

Yongin-si, South Korea

Chi Hoon Jo