Dynamic estimator for determining operating conditions in an internal combustion engine
Methods and systems are provided for estimating engine performance information for a combustion cycle of an internal combustion engine. Estimated performance information for a previous combustion cycle is retrieved from memory. The estimated performance information includes an estimated value of at least one engine performance variable. Actuator settings applied to engine actuators are also received. The performance information for the current combustion cycle is then estimated based, at least in part, on the estimated performance information for the previous combustion cycle and the actuator settings applied during the previous combustion cycle. The estimated performance information for the current combustion cycle is then stored to the memory to be used in estimating performance information for a subsequent combustion cycle.
- Research Organization:
- Robert Bosch GmbH, Stuttgart, DE (Germany)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0003533
- Assignee:
- Robert Bosch
- Patent Number(s):
- 9,228,527
- Application Number:
- 13/621,527
- OSTI ID:
- 1234690
- Resource Relation:
- Patent File Date: 2012 Sep 17
- Country of Publication:
- United States
- Language:
- English
Similar Records
Three Way Catalyst-Selective Catalytic Reduction Aftertreatment System Evaluation for a Lean Burn Gasoline Engine Operating in Homogenous Charge Compression Ignition, Spark-Assisted Compression Ignition, and Spark-Ignited Combustion Modes
Knock suppression apparatus for internal combustion engine