| 摘要 |
PURPOSE: To attempt optimization of a lambda control by solving the temperature characters of adjustment properties based on detecting adaptive value of different engine temperature, or estimating the adaptive value. CONSTITUTION: An apparatus 12 for measuring engine temperature, an apparatus 14 for detecting if a lambda control is enabled, an adaptive apparatus 15, and a memory/extrapolation apparatus 16 are provided. When a lambda control is enabled, an adaptive control is conducted by the adaptive apparatus 15, adaptive values of each cylinder relative to at least two engine temperaturesυ-MOT are detected, at least two values representing engine temperature-depending properties of the adaptive values are derived from the detected adaptive values for each cylinder, and are memorized by the memory/extrapolation apparatus 16. Furthermore, actual adaptive values of each cylinder are estimated from the actual engine temperature and at least the two values representing the temperature-depending properties of the adaptive values, and are used for the adaptive lambda control.
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