Methods and systems for a throttle turbine generator
AssigneeFord Global Technologies, LLC
InventorsThomas G. Leone, John D. Russell
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, comprising:
- in an engine system with a throttle bypass around a throttle disposed in an intake passage of the engine system, the throttle bypass including a turbine in communication with an auxiliary generator, adjusting an operating parameter based on airflow to cylinders of an engine during a transient operating condition.
A method for an engine, comprising:
- during a non-transient operating condition, determining an airflow to the engine based on mass airflow upstream of a throttle, and
- during a transient operating condition, determining the airflow to the engine based on speed-density or a time constant of a turbine disposed in a throttle bypass which routes intake air around the throttle, and adjusting an operating parameter based on the airflow to the engine.
A system for an engine, comprising:
- a throttle disposed in an intake passage of the engine;
- a throttle bypass which includes a turbine coupled to an auxiliary generator;
- a controller configured to identify an airflow to the engine and, during a transient operating condition, to adjust one or more operating parameters responsive to the airflow to the engine.
Dependencies are inferred from the claim text.