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US 10,850,735 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.
Claims11
A method of operating a vehicle driveline, comprising:
- providing a first axle assembly having a first drive ratio;
- providing 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;
- providing a control system in electrical communication with said first and second axle assemblies;
- providing an auxiliary braking system in electrical communication with said control system;
- detecting engagement of said auxiliary braking system;
- detecting a predetermined vehicle condition in which said auxiliary braking system is to be used;
- and
- engaging said second axle assembly with said first axle assembly via said control system in response to said auxiliary braking system being in an active state.
5 more elements
A method of operating a vehicle driveline, comprising:
- providing a first axle assembly having a first drive ratio;
- providing 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;
- providing a control system in electrical communication with said first and second axle assemblies;
- providing a condition sensor in electrical communication with said control system;
- detecting a vehicle operating parameter using said condition sensor, wherein said vehicle operating parameter is at least one of a terrain grade and an engine net output torque;
- and
- engaging said second axle assembly with said first axle assembly via said control system in response to an auxiliary braking system being in an active state.
4 more elements
Dependencies are inferred from the claim text.