Methods and systems for power take off device torque delivery
AssigneeFord Global Technologies, LLC
InventorsDennis E. Homant, Bradley Dean Riedle, David James Liller
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for controlling a vehicle engine to deliver desired torque to a power take off device coupled to the engine. In one example, the method may include, learning a filtered PTO torque demand during vehicle acceleration, and steady state operation, and during transition in engine states using the learned PTO torque demand to adjust engine speed in order to deliver a desired engine torque output for optimal operation of the PTO device.
Claims20
A method for a vehicle with a power take off (PTO) device coupled to an engine, comprising:
- estimating a PTO load based on a difference between engine torque output and torque converter torque output;
- and
- adjusting engine torque output based on the estimated PTO load during a transition between engine states.
A method for an engine of a vehicle coupled to a power take-off (PTO) device, comprising:
- operating the PTO device via the engine while the vehicle is moving and as driver demand changes.
A method for an engine, comprising:
- in response to a first change in driver demand received while operating a PTO device via an engine in a first mode, discontinuing operating the PTO device via the engine;
- and
- in response to a second change in driver demand received while operating the PTO device via the engine in a second mode, adjusting engine operation to meet the change in driver demand while maintaining operation of the PTO device.
Dependencies are inferred from the claim text.