Methods and systems for an engine
AssigneeFord Global Technologies, LLC
InventorsThomas G. Leone, John Anthony DeMarco
Life of this patent
Estimating the term…
Abstract
Various systems and methods for an engine system which includes a throttle turbine generator having a turbine which drives an auxiliary generator and disposed in a throttle bypass are described. In some examples, a throttle bypass valve is controlled to adjust airflow through the throttle bypass responsive to airflow to cylinders of the engine. In other examples, an operating parameter such as throttle position is controlled based on transient operating conditions of the engine. In still other examples, charging of a battery is coordinated between the auxiliary generator and a primary generator.
Claims20
A method for an engine, comprising:
- when a state of charge of a battery is less than a threshold, directing intake air through a throttle bypass around a throttle disposed in an intake passage of the engine and through a turbine to drive an auxiliary generator;
- and
- charging the battery via the auxiliary generator.
A method for an engine, comprising:
- under a first condition, directing intake air through a throttle bypass around a throttle disposed in an intake passage of the engine and through a turbine to drive an auxiliary generator to maintain a state of charge of a battery;
- and
- under a second condition, adjusting an engine operating parameter to increase charging of the battery via the auxiliary generator.
A system for an engine, comprising:
- a throttle disposed in an intake passage of the engine;
- a throttle bypass configured to route intake air from a position upstream of the throttle to a position downstream of the throttle;
- a turbine disposed in the throttle bypass, the turbine configured to drive an auxiliary generator in electrical communication with a battery, the battery further in electrical communication with a primary generator;
- and
- a controller configured to identify a state of charge of the battery and to charge the battery with one or more of the primary generator and the auxiliary generator based on the state of charge of the battery and an operating condition.
Dependencies are inferred from the claim text.