초록 ▼

A future value is predicted based on time-serial data of measurement data heretofore available to attain high precision control of fuel injection of an engine, by providing: (1) an unit for determining an acceleration/deceleration level representing a magnitude of acceleration/deceleration of a vehi

A future value is predicted based on time-serial data of measurement data heretofore available to attain high precision control of fuel injection of an engine, by providing: (1) an unit for determining an acceleration/deceleration level representing a magnitude of acceleration/deceleration of a vehicle based on a displacement of a throttle opening degree in a predetermined time, (2) an unit for predicting the future value by a digital advancing filter based on measurement data heretofore available, and (3) a correction unit for calculating a measurement amount which is under or over when the predicting process is conducted, in accordance with the acceleration/deceleration level, and adding the calculated measurement value to said predicted value to calculate the future value of the measurement data. Where a table for converting outputs of various sensors arranged around the engine etc. to physical amounts such as suction air amount, an unit for increasing the search speed for the table is provided.

대표청구항 ▼

A method for predicting a future value of measurement data to be used in controlling fuel injection of an internal combustion engine, comprising the steps of: determining a control level of the engine, based on an amount of control applied to the engine in a predetermined time period; periodically g

A method for predicting a future value of measurement data to be used in controlling fuel injection of an internal combustion engine, comprising the steps of: determining a control level of the engine, based on an amount of control applied to the engine in a predetermined time period; periodically generating measurement data representing a condition of the engine which varies with changes in said control level; predicting a future value of said measurement data using a digital advancing filter based on measurement data heretofore available on the condition that an increment per unit time of the measurement data is held for the predetermined time period; calculating, on the basis of the determined control level on the engine corrective amount to correct said future value predicted in said predicting step when said predicting is conducted; adding the calculated corrective amount to the future value predicted in the predicting step to determine a true future value of the measurement data; and controlling fuel injection of said engine using said true future value of the measurement data.