Patent ID: 11913398
Assignee: TRANSTRON INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An engine control device including:
a model that, based on an engine operating condition and a first-type operation amount, reproduces at least one index from among indexes of combustion states of an engine, the indexes consisting of thermal efficiency, maximum pressure rise rate inside cylinder, torque, combustion start position, combustion gravity center, NOx, soot, CO, HC, and PM; and
a processor that executes a process including
deciding on a second-type operation amount, by optimization using the model so as to
treat at least one of the indexes, which are reproduced by the model, as an estimated value of a control amount, and
ensure that the estimated value of the control amount follows a control target value,

rewriting a learning control table so that in the learning control table the second-type operation amount associated with the control target value and the engine operating condition is registered, and
obtaining the second-type operation amount according to the learning control table based on the control target value and the engine operating condition, the second-type operation amount being used to operate the engine,

wherein
each of the first-type operation amount and the second-type operation amount includes fuel injection quantity and inject period during multiple injection, and
the learning control table includes two types of tables including
a first-type learning control table that is formed with
the control target value,
engine rotation count and fuel injection quantity representing the engine operating condition, and
the first-type operation amount, and

a second-type learning control table for correcting a difference between the first-type operation amount specified in the first-type learning control table and the second-type operation amount calculated as a result of the optimization.