Method and apparatus for estimating data for engine control
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorMasashi Yamaguchi
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AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorMasashi Yamaguchi
Estimating the term…
A data estimation capability using a FNN to estimate engine state data for an engine control system is described. The data estimation capability provides for making data relating to the engine state available as control parameters in a simple, inexpensive manner. The data estimation includes using data from one or more sensors as inputs to a FNN to estimate unmeasured engine operating states. The data estimates are provided as control parameters to an engine control system. The FNN can be used to provide data estimates for engine state values (e.g. the exhaust air fuel ratio, the exhaust NOx. value, the combustion chamber temperature, etc.) that are too difficult or too expensive to measure directly. Each FNN can be configured using a genetic optimizer to select the input data used by the FNN and the coupling weights in the FNN. For example, the air/fuel ratio in the engine exhaust is estimated from the crank-angle acceleration, the crank angle, the engine speed, the air intake volume, the intake air vacuum, the ignition timing, the valve timing angle, and/or the EGR valve control; thereby eliminating the need for an O2 sensor in the exhaust.
An engine controller comprising:
An engine controller comprising a controller output;
A data estimation method for engine control in which data for at least one engine condition is identified as a control parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of obtaining input information from one or more sensors;
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
A data estimation method for engine control in which data for at least one engine condition is identified as an estimated parameter, the method comprising the steps of:
Dependencies are inferred from the claim text.