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US 12,697,871 B2Granted
Electric axle system with different gear ratios
AssigneeFlyer Next, LLC
InventorsBruce Falls, Oded Nechushtan
Life of this patent
Estimating the term…
Abstract
The electric axle (e-axle) system having variable gear ratios is disclosed. The e-axle system can include a first axle assembly having one axle gear ratio and a second axle assembly having two or more axle gear ratios that are selectively and independently controlled. In addition, each of the first and second axle assemblies is independently controlled to be in a neutral position.
Claims23
An axle system for an electric vehicle, comprising:
- a first axle assembly configured to operate in a first gear ratio, the first axle assembly comprising a first electric motor configured to drive a first axle shaft;
- and
- a second axle assembly configured to selectively operate in a second gear ratio and a third gear ratio, the second axle assembly comprising a second electric motor configured to drive a second axle shaft,
- wherein the first gear ratio, the second gear ratio, and the third gear ratio are different ratios,
- wherein the first axle assembly and the second axle assembly are configured to operate independently of each other, and
- wherein the first axle assembly and the second axle assembly are configured to drive the first and second axle shafts simultaneously using the first and second electric motors.
3 more elements
An electric vehicle comprising:
- a first axle assembly configured to operate in a first gear ratio, the first axle assembly comprising a first electric motor configured to drive a first axle shaft;
- a second axle assembly configured to selectively operate in a second gear ratio and a third gear ratio, the second axle assembly comprising a second electric motor configured to drive a second axle shaft;
- and
- a computing system configured to:
- control the first axle assembly and the second axle assembly, and
- dynamically select between the second gear ratio and the third gear ratio,
- wherein the first gear ratio, the second gear ratio, and the third gear ratio are different ratios,
- wherein the first axle assembly and the second axle assembly are configured to operate independently of each other, and
- wherein the first axle assembly and the second axle assembly are configured to drive the first and second axle shafts simultaneously using the first and second electric motors.
6 more elements
A computing system for an electric vehicle comprising:
- a memory storing instructions;
- and
- one or more processors, coupled to the memory, and configured to dynamically select a first gear ratio and a second gear ratio of a first axle assembly of the vehicle, the first axle assembly comprising a first electric motor configured to drive a first axle shaft,
- wherein a second axle assembly of the vehicle has a third gear ratio, the second axle assembly comprising a second electric motor configured to drive a second axle shaft,
- wherein the first gear ratio, the second gear ratio, and the third gear ratio are different ratios,
- wherein the one or more processors are further configured to control the first axle assembly and the second axle assembly independently of each other, and
- wherein the one or more processers are further configured to operate the first and second motors such that they drive the first and second axle shafts simultaneously.
4 more elements
Dependencies are inferred from the claim text.