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US 11,235,771 B2Granted
Axle range shift-assist for auxiliary braking
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorScott A. Smith
Life of this patent
Estimating the term…
Abstract
A vehicle driveline including a first axle assembly having a first drive ratio. A second axle assembly in selective driving engagement with the first axle assembly, the first and second axle assemblies having a second drive ratio when in driving engagement. A control system in electrical communication with the first and second axle assemblies, wherein the control system selectively engages the second axle assembly with the first axle assembly.
Claims14
A vehicle driveline, comprising:
- a first axle assembly having a first drive ratio;
- a second axle assembly in selective driving engagement with said first axle assembly, said first and second axle assemblies having a second drive ratio when in driving engagement;
- an auxiliary braking system;
- and
- a control system in electrical communication with said first and second axle assemblies, wherein said control system selectively engages said second axle assembly with said first axle assembly in response to an auxiliary braking apparatus being in an active state.
2 more elements
A vehicle driveline, comprising:
- a first axle assembly having a first drive ratio;
- a second axle assembly in selective driving engagement with said first axle assembly, said first and second axle assemblies having a second drive ratio when in driving engagement;
- an auxiliary braking system;
- and
- a control system in electrical communication with said first and second axle assemblies, wherein said control system couples the first axle to the second axle during a first condition when a vehicle's speed is increasing, wherein said control system decouples the second axle from the first axle during a second condition when the vehicle's speed is increasing, and wherein the control system selectively engages said second axle assembly with said first axle assembly in response to an auxiliary braking apparatus being in an active state.
2 more elements
Dependencies are inferred from the claim text.