| 摘要 |
PURPOSE:To judge instantaneously whether the power transmission from an engine is adequate or inadequate by detecting the rotating speed of the engine and the speed change position of a speed changer and selecting and displaying the corresponding region from the preset plural rotating speed/speed change position regions. CONSTITUTION:The detection signal for the rotating speed of the engine is obtd. by a rotating speed detecting means 1 and is inputted to a rotating speed calculating means 3 by which the rotating speed of the engine is calculated. The position where the speed changer of the vehicle is shifted among the plural speed change positions for running is detected by a speed change position detecting means 2. The detected rotating speed signal and speed change position signal are inputted to an output signal generating means 4. The two-dimensional map of the rotating speed and speed change position is divided to the plural regions and is preliminarily stored in the means 4. The region to which the combination of the inputted rotating speed/speed change position combination belongs is selected and outputted. The output is displayed by a display means 5.
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