Electric parking brake device
AssigneeHyundai Mobis Co., Ltd.
InventorMoo Jin Choi
Life of this patent
Estimating the term…
Abstract
An electronic parking brake device may include: a gear unit driven by an actuator; a rotating rod connected to the gear unit; a push rod unit configured to pressurize one or more shoes while moved in connection with the rotating rod; a clutch unit disposed to interfere with a moving line of the gear unit, and configured to apply a rotational load to the gear unit while abutting on the gear unit, when the gear unit is rotated at a present angle; and a controller configured to control the operation of the actuator according to the load applied to the actuator.
Claims19
An electronic parking brake device comprising:
- a gear unit including a driving gear and a driven gear;
- an actuator configured to drive the gear unit;
- a rotating rod configured to be rotated by the gear unit;
- a push rod unit configured to pressurize one or more shoes while moved in connection with the rotating rod;
- a clutch unit coaxially connected to the driven gear of the gear unit, and configured to apply a rotational load to the gear unit while abutting the gear unit in response to the gear unit being rotated at a preset angle;
- and
- a controller configured to control an operation of the actuator according to a load applied to the actuator.
An hybrid electronic parking brake device comprising:
- a main hydraulic braking unit comprising:
- a piston housing;
- and
- a piston disposed in the piston housing, the piston configured to adjust pressure applied to one or more shoes;
- a parking braking unit comprising:
- a push rod configured to adjust pressure applied to one or more shoes;
- a rotating rod configured to move the push rod to adjust pressure applied to the one or more shoes;
- and
- a gear unit configured to rotate the rotating rod to move the rotating rod, the gear unit comprising a driving gear and a driven gear;
- a housing enclosing the main hydraulic braking unit and the parking braking unit and
- a clutch unit coaxially connected to the driven gear of the gear unit, the rotating rod, and the push rod, the clutch unit being configured to apply a rotational load to the gear unit in response to the gear unit being rotated at a preset angle.
Dependencies are inferred from the claim text.