Airflow variation learning using electronic throttle control
AssigneeGeneral Motors Corporation
InventorsDavid A. Stamm, Todd R. Shupe
Life of this patent
Estimating the term…
Abstract
A throttle area compensation system for use with an electronic throttle control of a vehicle includes a compensation datastore of compensation values indexed by pre-compensated throttle area. A compensation vector learning module receives a pre-compensated throttle area and at least one sensed vehicle condition, and informs the compensation datastore based on the pre-compensated throttle area and the sensed vehicle condition. A throttle area compensation module communicates with the compensation datastore, receives the pre-compensated throttle area, and determines a compensated throttle area based on the pre-compensated throttle area and a corresponding compensation value of the compensation data store.
Claims23
A throttle area compensation system for use with an electronic throttle control of a vehicle, comprising:
- a compensation datastore of compensation values indexed by pre-compensated throttle area;
- a compensation vector learning module receiving a pre-compensated throttle area and at least one sensed vehicle condition, and informing the compensation datastore based on the pre-compensated throttle area and the sensed vehicle condition;
- and
- a throttle area compensation module communicating with the compensation datastore, receiving the pre-compensated throttle area, and determining a compensated throttle area based on the pre-compensated throttle area and a corresponding compensation value of the compensation data store.
A throttle area compensation method for use with an electronic throttle control of a vehicle, comprising:
- calculating an ideal airflow rate based on a pre-compensated throttle area;
- determining a residual airflow rate based on a comparison between the ideal airflow rate and an actual airflow rate of the vehicle;
- and
- compensating pre-compensated throttle area based on the residual airflow rate.
Dependencies are inferred from the claim text.