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US 12,371,095 B2Granted
Steer-by-wire steering apparatus
AssigneeHl Mando Corporation
InventorsKyung Min Ko, Sang Hee Ahn
Life of this patent
Estimating the term…
Abstract
The present embodiments may provide a steer-by-wire steering apparatus which enables a driver to use a function for controlling an automobile, such as automatic parking, lane keeping, driving assistance according to a road surface condition, steering-vibration damping, or autonomous driving control, to improve the driver's convenience, and allows removal of hydraulic pressure-related components to prevent consumption of engine power by the components and thus can satisfy the high power and rigidity required for a steering device of a commercial vehicle.
Claims11
A steer-by-wire steering device, comprising:
- a hollow housing having a first gear portion formed on an inner circumferential surface thereof;
- a first gear member including a large diameter portion having a second gear portion formed on an outer circumferential surface thereof and a small diameter portion having a third gear portion formed on the outer circumferential surface thereof, coupled to the housing as the first gear portion and the second gear portion are engaged with each other, and rotated by a motor coupled to a side of the housing;
- and
- a second gear member including a hollow portion having a fourth gear portion formed on an inner circumferential surface thereof and a coupling portion axially protruding to couple with a pitman arm and having the hollow portion coupled with the small diameter portion inside of the housing as the third gear portion is engaged with the fourth gear portion,
- wherein the pitman arm has a coupling hole into which the coupling portion is inserted, and a coupling part and the coupling hole are serrated to be engaged with each other.
2 more elements
A steer-by-wire steering device, comprising:
- a hollow housing having a first gear portion formed on an inner circumferential surface thereof:
- a first gear member including a large diameter portion having a second gear portion formed on an outer circumferential surface thereof and a small diameter portion having a third gear portion formed on the outer circumferential surface thereof, coupled to the housing as the first gear portion and the second gear portion are engaged with each other, and rotated by a motor coupled to a side of the housing;
- and
- a second gear member including a hollow portion having a fourth gear portion formed on an inner circumferential surface thereof and a coupling portion axially protruding to couple with a pitman arm and having the hollow portion coupled with the small diameter portion inside of the housing as the third gear portion is engaged with the fourth gear portion,
- wherein a first fixing member axially supported on the pitman arm is coupled to an outer circumferential surface of the coupling portion.
2 more elements
A steer-by-wire steering device comprising:
- a hollow housing having a first gear portion formed on an inner circumferential surface thereof:
- a first gear member including a large diameter portion having a second gear portion formed on an outer circumferential surface thereof and a small diameter portion having a third gear portion formed on the outer circumferential surface thereof, coupled to the housing as the first gear portion and the second gear portion are engaged with each other, and rotated by a motor coupled to a side of the housing;
- and
- a second gear member including a hollow portion having a fourth gear portion formed on an inner circumferential surface thereof and a coupling portion axially protruding to couple with a pitman arm and having the hollow portion coupled with the small diameter portion inside of the housing as the third gear portion is engaged with the fourth gear portion,
- wherein the first gear member has a coupling aperture into which a motor shaft of the motor is inserted,
- wherein an annular rotation supporting member having different central axes for an inner circumferential surface and outer circumferential surface thereof is provided between an inner circumferential surface of the first gear member and an outer circumferential surface of the motor shaft, and
- wherein a second fixing member axially supported on the rotation supporting member is coupled to the motor shaft.
4 more elements
Dependencies are inferred from the claim text.