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US 2020/0271028 A1Published application
Methods and system for operating an engine
AssigneeFord Global Technologies, LLC
InventorsJustin Badger, Kenneth Frederick, Robert Hurley
Life of this patent
Estimating the term…
Abstract
Systems and methods for operating a spark ignition engine that includes a particulate filter in the engine's exhaust system are described. In one example, the spark ignition engine is prevented from exceeding a threshold engine load when the engine is supplying power to an electric machine so that engine emissions may be reduced.
Claims20
An engine operating method, comprising:
- adjusting a not to exceed threshold engine load via a controller in response to an amount of soot stored in a particulate filter of a spark ignited engine;
- and
- operating an engine without exceeding the not to exceed threshold engine load via the controller.
An engine operating method, comprising:
- adjusting a not to exceed threshold engine load via a controller in response to an amount of soot stored in a particulate filter of a spark ignited engine;
- operating an engine without exceeding the not to exceed threshold engine load via the controller while not providing propulsive torque to vehicle wheels;
- and
- operating the engine and exceeding the not to exceed threshold engine load via the controller while providing propulsive torque to vehicle wheels.
1 more element
A system, comprising:
- a spark ignition engine;
- a particulate filter in an exhaust system of the spark ignition engine;
- and
- a controller including executable instructions stored in non-transitory memory to maintain engine load less than a threshold engine load in response to an amount of soot stored in a particulate filter and a driver demand power.
1 more element
Dependencies are inferred from the claim text.