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US 2015/0197133 A1Published application
Suspension System and Method of Control
AssigneeArvinMeritor Technology, LLC
InventorDavid VanRaaphorst
Life of this patent
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Abstract
A suspension system and a method of control. A load force on a first axle assembly may be increased when a ride height of the first axle assembly differs from the ride height of the second axle assembly by more than a threshold amount and the ride height of the first axle assembly is not within a ride height tolerance.
Claims20
A method of controlling a suspension system comprising:
- determining a ride height of a first axle assembly and a ride height of a second axle assembly;
- and
- increasing a load force upon the first axle assembly when the ride height of the first axle assembly differs from the ride height of the second axle assembly by more than a threshold amount and the ride height of the first axle assembly is not within a ride height tolerance.
A method of controlling a suspension system comprising:
- determining a vehicle speed, a ride height of a first axle assembly, and a ride height of a second axle assembly;
- and
- increasing a load force on the first axle assembly when the vehicle speed is less than a threshold speed value, the ride height of the first axle assembly differs from the ride height of the second axle assembly by more than a threshold amount, the ride height of the first axle assembly is not within a ride height tolerance, and the load force is less than a target axle load.
A suspension system for a vehicle comprising:
- a first axle assembly having an inflatable first air spring that supports a chassis of the vehicle and a first ride height sensor that detects a ride height of the first axle assembly;
- a second axle assembly having an inflatable second air spring that supports the chassis and a second ride height sensor that detects a ride height of the second axle assembly;
- and
- a vehicle speed sensor that provides data indicative of vehicle speed;
- wherein a load force on the first axle assembly is increased when the vehicle speed is less than a threshold speed value, the ride height of a first axle assembly differs from the ride height of the second axle assembly by more than a threshold amount, and the ride height of the first axle assembly is not within a ride height tolerance.
2 more elements
Dependencies are inferred from the claim text.