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US 12,584,547 B2Granted
Multi-speed electric axle
AssigneeDana Automotive Systems Group, LLC
InventorEric M. Engerman
Life of this patent
Estimating the term…
Abstract
A system and method for a multi-speed electric axle. The multi-speed electric axle includes, in one example, an electric machine rotationally coupled to an input shaft, a planetary gear set including a ring gear meshed with a gear fixedly coupled to the input shaft and a carrier that is rotationally coupled to a shaft, a first clutch configured to selectively ground a sun gear in the first planetary gear set, and a second clutch configured to selectively rotationally couple a sun gear in the planetary gear set with the shaft.
Claims7
A multi-speed electric beam axle, comprising:
- a traction motor rotationally coupled to an input shaft;
- a simple planetary gear set including:
- a ring gear meshed with a gear fixedly coupled to the input shaft;
- and
- a carrier that is rotationally coupled to a shaft;
- a first clutch configured to selectively ground a sun gear in the simple planetary gear set;
- a second clutch configured to selectively rotationally couple the sun gear in the simple planetary gear set with the shaft;
- a jumper shaft rotationally coupled to the shaft and extending across a side of the electric machine;
- and
- a mechanical limited slip differential coupled to the jumper shaft via a second simple planetary gear set;
- wherein the multi-speed electric beam axle is a rear axle.
8 more elements
Dependencies are inferred from the claim text.