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US 11,623,682 B2Granted
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 first efficiency in the driving direction and a second different efficiency in the reverse-driving direction.
Claims10
A spindle drive for an actuator of a steer-by-wire steering system, comprising:
- a linearly displaceable threaded spindle,
- the spindle drive 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 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.