Dual variable-tooth rack and single pinion steering system
AssigneeDelphi Technologies, Inc.
InventorMichael James Cole
Life of this patent
Estimating the term…
Abstract
A dual variable-tooth rack and single pinion steering system includes a first elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile located between its ends, a second elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile located between its ends; and a pinion disposed to engage the inner end of the first rack and the inner end of the second rack to thereby define a set of rack displacements between the outer end of the first rack and the outer end of the second rack.
Claims13
A steering system, comprising:
- a first elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween;
- a second elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween;
- a pinion disposed to engage the teeth towards the inner end of the first rack and the teeth towards the inner end of the second rack, thereby defining a set of variable steering angles between the outer end of the first rack and the outer end of the second rack;
- and,
- an actuator having a moving member coupled to the pinion, whereby the moving member causes the pinion to rotate, wherein the actuator comprises an electric machine.
A steering system, comprising:
- a first elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween;
- a second elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween;
- a pinion disposed to engage the teeth towards the inner end of the first rack and the teeth towards the inner end of the second rack, thereby defining a set of variable steering angles between the outer end of the first rack and the outer end of the second rack;
- an actuator having a moving member coupled to the pinion, whereby the moving member causes the pinion to rotate;
- and,
- a controller coupled in signal communication with the actuator.
A steering system, comprising:
- a first elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween, the first elongated rack having a first longitudinal axis;
- a second elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween, the second elongated rack having a second longitudinal axis;
- and,
- a pinion disposed to engage the teeth towards the inner end of the first rack and the teeth towards the inner end of the second rack, thereby defining a set of variable steering angles between the outer end of the first rack and the outer end of the second rack, the pinion having a centerline parallel to a plane containing the first longitudinal axis and the second longitudinal axis, wherein rotation of the pinion is about the centerline.
A steering system, comprising:
- a first elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween;
- a second elongated rack having an inner end, an outer end, and a set of teeth with a predetermined variable tooth profile therebetween;
- a pinion disposed to engage the teeth towards the inner end of the first rack and the teeth towards the inner end of the second rack, thereby defining a set of variable steering angles between the outer end of the first rack and the outer end of the second rack;
- and,
- an electric assist, wherein the electric assist is operably disposed to assist the steering system.
Dependencies are inferred from the claim text.