Active vehicle suspension
First Claim
1. An active wheel suspension for suspending a wheel assembly from a sprung body of a wheeled vehicle, and adapted to permit a center of the wheel assembly to move relative to the sprung body through a jounce and rebound travel and defining a wheel center locus path relative to the body, the suspension comprising:
- an actuator connected to both the wheel assembly and the sprung body and adapted to apply an active control force between the body and wheel assembly to move the wheel assembly;
wherein a tangent to the wheel center locus path is inclined rearward at an angle that corresponds to a resultant direction of a road surface force such that the active control force is applied on the wheel assembly in a direction opposite to the resultant direction.
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0 Petitions
Accused Products
Abstract
An active wheel suspension for suspending a wheel assembly from a sprung body of a wheeled vehicle, and adapted to permit a center of the wheel assembly to move relative to the sprung body through a jounce and rebound travel and defining a wheel center locus path relative to the body, the suspension including an actuator connected to both the wheel assembly and the sprung body and adapted to apply an active control force between the body and wheel assembly to move the wheel assembly. The wheel suspension is configured such that a tangent to the wheel center locus path is inclined rearward with respect to vertical with the wheel center at nominal ride height.
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Citations
43 Claims
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1. An active wheel suspension for suspending a wheel assembly from a sprung body of a wheeled vehicle, and adapted to permit a center of the wheel assembly to move relative to the sprung body through a jounce and rebound travel and defining a wheel center locus path relative to the body, the suspension comprising:
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an actuator connected to both the wheel assembly and the sprung body and adapted to apply an active control force between the body and wheel assembly to move the wheel assembly; wherein a tangent to the wheel center locus path is inclined rearward at an angle that corresponds to a resultant direction of a road surface force such that the active control force is applied on the wheel assembly in a direction opposite to the resultant direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An active wheel suspension for suspending a wheel assembly from a sprung body of a wheeled vehicle, and adapted to permit a center of the wheel assembly to move relative to the sprung body through a jounce and rebound travel and defining a wheel center locus path relative to the body, the suspension comprising:
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an actuator connected to both the wheel assembly and the sprung body and adapted to apply an active control force between the body and wheel assembly to move the wheel assembly; wherein a tangent to the wheel center locus path is inclined rearward at an angle that corresponds to a resultant direction of a road surface force such that the active control force is applied on the wheel assembly in a direction opposite to the resultant direction, the angle being between about 1 and 5 degrees with the wheel center at nominal ride height; wherein the suspension is configured to move the wheel center through jounce and rebound along a substantially linear path with respect to the body, the linear path inclined rearward with respect to vertical.
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27. A method of actuating an active wheel suspension of a wheeled vehicle, the method comprising:
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applying an active control force between a sprung vehicle body and wheel assembly to move the wheel assembly; and moving a center of the wheel assembly relative to the sprung body through a jounce and rebound travel along a wheel center locus path relative to the body, wherein the tangent to the wheel center locus path is inclined rearward at an angle that corresponds to a resultant direction of a road surface force such that the active control force is applied on the wheel assembly in a direction opposite to the resultant direction. - View Dependent Claims (28, 29, 30)
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31. An active wheel suspension for suspending a wheel assembly from a sprung body of a wheeled vehicle, and adapted to permit a center of the wheel assembly to move relative to the sprung body through a jounce and rebound travel, the suspension comprising:
- an electromagnetic actuator connected to both the wheel assembly and the sprung body and adapted to apply an active control force between the body and wheel assembly to move the wheel assembly, the active control force being applied on the wheel assembly in a direction opposite to a resultant direction of a road surface force and at an angle corresponding to an angle of the resultant force;
a housing of the actuator, and a mechanical stop within the housing. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
- an electromagnetic actuator connected to both the wheel assembly and the sprung body and adapted to apply an active control force between the body and wheel assembly to move the wheel assembly, the active control force being applied on the wheel assembly in a direction opposite to a resultant direction of a road surface force and at an angle corresponding to an angle of the resultant force;
Specification