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US 2021/0070119 A1Published application
All-wheel drive line lock for warming tires during track usage
AssigneeFord Global Technologies, LLC
InventorsEthan D. SANBORN, James FRITZ
Life of this patent
Estimating the term…
Abstract
A vehicle includes a powerplant, such as an engine, configured to power front and rear wheels, and a controller. The controller is programmed to, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels to warm those tires, and subsequently brake the second front wheel and the second rear wheel while powering the first front wheel and the first rear wheel to warm those tires.
Claims20
A vehicle comprising:
- a powerplant configured to power front and rear wheels;
- and
- a controller programmed to, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels.
A vehicle comprising:
- an engine configured to power front and rear wheels;
- and
- a controller programmed to, in response to line-lock mode being activated,
- for a first time window, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels, and
- for a second time window that is subsequent to the first time window, brake the second front wheel and the second rear wheel while powering the first front wheel and the first rear wheel.
2 more elements
A vehicle comprising:
- wheel assemblies each including a wheel, an electric machine, and a brake;
- and
- a controller programmed to, responsive to line-lock mode being activated,
- during a first phase, apply the brake of a first of the wheel assemblies and energize the electric machine of a second of the wheel assemblies, and
- during a second phase, apply the brake of the second wheel assembly and energize the electric machine of the first wheel assembly.
2 more elements
Dependencies are inferred from the claim text.