Dual-toothed transmission wheel for steering actuator
AssigneeSchaeffler Technologies AG & Co. KG
InventorsAlexandre Camilo, Andrew Lanni, Christopher Colarusso, Timothy Jacques, Jesus Alejandro Vanzzini Angulo
Life of this patent
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Abstract
A vehicle steering system is provided that includes: a first actuator drivably connected to a threaded nut via a first endless drive band and a dual-toothed wheel; a second actuator drivably connected to the threaded nut via a second endless drive band and the dual-toothed wheel; and, a threaded spindle configured to move linearly along an axis via rotation of the threaded nut. The dual-toothed wheel includes two axially adjacent tooth arrangements that receive each of the respective first and second endless drive bands.
Claims20
A vehicle steering system, comprising:
- a first actuator drivably connected to a threaded nut;
- a second actuator drivably connected to the threaded nut;
- a threaded spindle configured to move linearly along a first axis via rotation of the threaded nut;
- a transmission wheel fixed to the threaded nut such that the transmission wheel and the threaded nut rotate in unison about the first axis;
- a first endless drive band rotatably connecting the first actuator to the transmission wheel;
- a second endless drive band rotatably connecting the second actuator to the transmission wheel;
- and
- at least one endless drive band stop disposed on the transmission wheel axially between the first endless drive band and the second endless drive band, the at least one endless drive band stop configured to limit axial movement of the first endless drive band and/or the second endless drive band on the transmission wheel.
A vehicle steering system, comprising:
- a first actuator drivably connected to a threaded nut;
- a second actuator drivably connected to the threaded nut;
- a threaded spindle configured to move linearly along a first axis via rotation of the threaded nut;
- a transmission wheel fixed to the threaded nut, the transmission wheel having:
- a first end configured to receive a first endless drive band rotatably connecting the first actuator to the transmission wheel;
- a second end configured to receive a second endless drive band rotatably connecting the first actuator to the transmission wheel;
- and
- a tubular body circumferentially surrounding the threaded nut so as to house at least a portion of a ball recirculation system of the threaded nut.
A vehicle steering system, comprising:
- a first electric motor drivably connected to a threaded nut;
- a second electric motor drivably connected to the threaded nut;
- a threaded spindle configured to move linearly along a first axis via rotation of the threaded nut;
- a driven pulley fixed to the threaded nut such that the driven pulley and the threaded nut rotate in unison about the first axis, the driven pulley comprising:
- a tubular body;
- a first plurality of teeth:
- disposed on a first end of the tubular body;
- and
- rotatably engaging a first belt so as to drivably connect the first electric motor to the driven pulley;
- and
- a second plurality of teeth:
- disposed on a second end of the tubular body;
- and
- rotatably engaging a second belt so as to drivably connect the second electric motor to the driven pulley;
- and
- a non-driven land disposed axially between the first plurality of teeth and the second plurality of teeth.
Dependencies are inferred from the claim text.