| 摘要 |
PROBLEM TO BE SOLVED: To carry out exact evaluation of smoothness of a speed reduction (acceleration) operation corresponding to driving technique or the like only using an output of an existing sensor provided on a general electronic control vehicle without using a special sensor. SOLUTION: A variation amount of deceleration (a variation amount of acceleration) within a set time from starting of an operation and the maximum deceleration (the maximum acceleration) generated from starting of the operation to completion are measured based on variation of detected vehicle speed of a vehicle speed sensor by a deceleration variation amount measurement means (acceleration variation amount measurement means) and the maximum deceleration measurement means (the maximum acceleration measurement means). A measurement characteristic of speed reduction (acceleration) operation is calculated based on statistical processing of a plurality of numbers of measurement results by a characteristic operation means. A determination reference characteristic of a memory means is adjusted to a loose and severe value in responsive to a size of dispersion of the measurement result against the calculated measurement characteristic by a determination reference adjustment means. Quality of the speed reduction (acceleration) operation is determined from a relationship of the measurement characteristic and the determination reference characteristic of evaluation reference retained in the memory means by an operation determination means. COPYRIGHT: (C)2005,JPO&NCIPI
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