Pre-chamber spark control with two ignition sources
AssigneeFca US LLC
InventorsWilliam P Attard, Shawali Chaudhury, Qun Wei
Life of this patent
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Abstract
A combustion control system and method for a turbulent jet ignition engine is presented. A controller is configured to access a trained feedforward artificial neural network (ANN) configured to model a first spark from a first ignition source and maximum brake torque (MBT) based on measured operating parameters, generate the first spark and MBT using the ANN, generate a second spark from a second ignition device, and determine a target spark timing. The ANN can be further configured to receive an input related to spark stagger.
Claims20
A combustion control system for a turbulent jet ignition (TJI) engine having a first ignition device disposed in a pre-chamber of a cylinder head and a second ignition device disposed for communication with a main combustion chamber, the system comprising:
- a set of sensors configured to measure operating parameters;
- and
- a controller configured to:
- access a trained feedforward artificial neural network (ANN) configured to model a first spark from the first ignition device, and maximum brake torque (MBT) spark based on the operating parameters;
- generate the first spark, and the MBT spark for the engine using the ANN with the measured operating parameters from the set of sensors as inputs;
- generate a second spark for the second ignition device;
- determine a target spark timing for the engine based on at least one of the first spark, second spark and MBT spark.
A combustion control method for a turbulent jet ignition (TJI) engine having a first ignition device disposed in a pre-chamber of a cylinder head and a second ignition device disposed for communication with a main combustion chamber, the method comprising:
- receiving, by a controller and from a set of sensors, measured engine operating parameters;
- accessing, by the controller, a trained feedforward artificial neural network (ANN) configured to model a first spark from the first ignition device, and maximum brake torque (MBT) spark based on operating parameters;
- generating, by the controller, the first spark, and the MBT spark for the engine using the ANN with the measured parameters from the set of sensors as inputs;
- generating, by the controller, a second spark for the second ignition device;
- determining, by the controller, a target spark timing for the engine based on at least one of the first spark, second spark and MBT spark.
Dependencies are inferred from the claim text.