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US 2014/0100080 A1Published application
Viscous brake for driveline heating
AssigneeFord Global Technologies, LLC
InventorsWilliam Charles Ruona, Ross Dykstra Pursifull
Life of this patent
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Abstract
Embodiments for heating a vehicle driveline are provided. One example method for a vehicle comprises heating a fluid with kinetic vehicle energy in response to a vehicle braking request, and directing the fluid to a driveline component. In this way, kinetic vehicle energy during a vehicle braking event may be used to heat a driveline component.
Claims20
A vehicle method, comprising
- heating a fluid with kinetic vehicle energy in response to a vehicle braking request;
- and
- directing the fluid to a driveline component.
A vehicle method, comprising:
- during a first condition,
- decelerating the vehicle and heating a fluid by applying a wet clutch located on a vehicle axle in a differential housing;
- and
- directing the fluid to a driveline component;
- and
- during a second condition, decelerating the vehicle by applying vehicle friction brakes.
3 more elements
A system for a vehicle, comprising:
- a viscous brake located along a length of powertrain between an engine and a vehicle wheel, downstream of a transmission;
- and
- a heat exchanger in fluid communication with the viscous brake and a moving driveline component.
Dependencies are inferred from the claim text.