Back to results
US 2020/0079349 A1Published application
Methods and system for operating an off-road vehicle
AssigneeFord Global Technologies, LLC
InventorLars Niklas Pettersson
Life of this patent
Estimating the term…
Abstract
Systems and methods for operating a hybrid powertrain or driveline that includes an engine and an integrated starter/generator are described. In one example, engine power is adjusted based on a time averaged transmission input shaft power so that the engine may operate in a power region where its performance is enhanced to support operation in an off-road environment.
Claims20
A powertrain operating method, comprising:
- adjusting power output of an engine via a controller according to a time averaged transmission input power, the time averaged transmission input power an averaged sum of engine power output and electric machine power output.
A powertrain operating method, comprising:
- during conditions when a driver demand power is positive and the driver demand power is greater than an engine power output, adjusting an engine power output via a controller according to the driver demand power minus a power discharge threshold amount of a high voltage power system;
- and
- during conditions when the driver demand power is positive and the driver demand power is not greater than the engine power output, adjusting the engine power output via the controller according to a time averaged transmission input power, the time averaged transmission input power an averaged sum of the engine power output and an electric machine power output.
A system, comprising:
- an engine;
- an electric machine coupled to the engine;
- a controller including executable instructions stored in non-transitory memory to adjust engine output power according to a time averaged transmission input power in response to operating a vehicle in an off-road mode, where the off-road mode includes a second transmission gear shifting schedule, and where an on-road mode includes a first transmission gear shifting schedule.
Dependencies are inferred from the claim text.