| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an engine life estimation device which is low in cost and high in reliability. <P>SOLUTION: The current detection part (41) and the voltage detection part (42) respectively detects the current value and the voltage value supplied by an engine generation (1). The operation part (5) determines the weighting constant based on the current value and the voltage value, and weighting the operation hours of the engine (11) using the weighting constant, and calculates the integration hours by integrating the weighted operation hours. The determination part (6) compares the integration hours and the reference hours, if determined that the integration hours exceeds the reference hours, notifies the information part (8) of that. The information part (8) gives it externally. The current detection part (41) and the voltage detection part (42) can be constituted by the electric circuit, the life of the engine can be estimated at a low cost and high reliability. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
