Ride performance optimization in an active suspension system
First Claim
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1. A method of controlling a vehicle suspension for a wheel via a controller, the method comprising:
- repeatedly calculating a vertical velocity of the wheel until the vertical velocity exceeds a first velocity threshold;
in response to the vertical velocity exceeding the first velocity threshold, initiating a timer and maintaining a damping level of an adjustable damping mechanism of the vehicle suspension at an initial value while repeatedly recalculating the vertical velocity of the wheel until a recalculated vertical velocity exceeds a second velocity threshold; and
in response to the recalculated vertical velocity exceeding the second velocity threshold before the timer exceeds a first time threshold, sending an adjustment signal to the adjustable damping mechanism of the vehicle suspension to increase the damping level of the suspension.
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Abstract
An active vehicle suspension system includes an active damping mechanism operatively coupled to a vehicle wheel and configured for controlling a damping force applied to the wheel responsive to a control signal. A controller is operatively coupled to the damping mechanism and configured for generating a control signal to the damping mechanism responsive to velocity of the wheel in a downward vertical direction.
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Citations
20 Claims
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1. A method of controlling a vehicle suspension for a wheel via a controller, the method comprising:
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repeatedly calculating a vertical velocity of the wheel until the vertical velocity exceeds a first velocity threshold; in response to the vertical velocity exceeding the first velocity threshold, initiating a timer and maintaining a damping level of an adjustable damping mechanism of the vehicle suspension at an initial value while repeatedly recalculating the vertical velocity of the wheel until a recalculated vertical velocity exceeds a second velocity threshold; and in response to the recalculated vertical velocity exceeding the second velocity threshold before the timer exceeds a first time threshold, sending an adjustment signal to the adjustable damping mechanism of the vehicle suspension to increase the damping level of the suspension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle suspension system, comprising:
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an active damping mechanism operatively coupled to a vehicle wheel and configured to control damping applied to the wheel; and a controller operatively coupled to the active damping mechanism, the controller being configured to; repeatedly calculate a vertical velocity of the wheel until the vertical velocity exceeds a first velocity threshold; in response to the vertical velocity exceeding the first velocity threshold, initiate a timer and maintain a damping level of the active damping mechanism at an initial value of damping while repeatedly recalculating the vertical velocity of the wheel until a recalculated vertical velocity exceeds a second velocity threshold; and in response to the recalculated vertical velocity exceeding the second velocity threshold before the timer exceeds a first time threshold, adjust the active damping mechanism to increase the damping level applied to the wheel. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification