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US 11,530,747 B2Granted
Methods and systems for a transmission shift assembly
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsTravis J. Miller, Michael D. Cook, Jordan M. Houser, George A. Willford, Mark A. Davis
Life of this patent
Estimating the term…
Abstract
Various methods and systems are provided for a shift assembly for a vehicle transmission. In one example, a shift assembly for a transmission includes a first barrel cam including a first cam track; a second barrel cam arranged coaxially with the first barrel cam and including a second cam track; a first motor configured to drive the first barrel cam independent of the second barrel cam; and a second motor configured to drive the second barrel cam independent of the first barrel cam.
Claims5
A method, comprising:
- controlling a rotational position of a first barrel cam of a shift assembly of a transmission around a rotational axis via a first motor;
- controlling a rotational position of a second barrel cam of the shift assembly around the rotational axis via a second motor, independent of the rotational position of the first barrel cam;
- and
- adjusting a shift timing of the transmission via the first barrel cam and the second barrel cam responsive to an oil temperature of the transmission, wherein adjusting the shift timing based on the oil temperature includes adjusting a relative rotation timing of the first barrel cam and the second barrel cam based on the oil temperature.
1 more element
Dependencies are inferred from the claim text.