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US 2021/0237795 A1Published application
Steer-by-wire steering system having a spindle drive
AssigneeZF Friedrichshafen AG
InventorStefan WENK
Life of this patent
Estimating the term…
Abstract
A spindle drive (20) for an actuator of a steer-by-wire steering system (10). The spindle drive has a linearly displaceable threaded spindle (27). The spindle drive (20) is in the form of a roller screw drive. The roller screw drive has a firs efficiency in the driving direction and a second different efficiency in the reverse-driving direction.
Claims11
1-9. (canceled)
A spindle drive (20) for an actuator (10) of a steer-by-wire steering system, comprising:
- a linearly displaceable threaded spindle (27),
- the spindle drive (20) being in the form of a roller screw drive, and
- the roller screw drive having different efficiencies in a driving direction and in a reverse-driving direction.
A spindle drive for an actuator of a steer-by-wire steering system, the spindle drive comprising:
- a linearly displaceable threaded spindle,
- the spindle drive (20) being a roller screw drive having a first efficiency in a driving direction and a different second efficiency in a reverse-driving direction.
Dependencies are inferred from the claim text.