| 摘要 |
<p>PURPOSE:To provide a hydraulic control system that is able to specify something wrong with a position sensor of a controlled system. CONSTITUTION:This system is provided with a pressure sensor 6 detecting the extent of hydraulic pressure in a hydraulic power source 1 in substance and a trouble judging means 7 which receives each signal out of a position sensor 5 and the pressure sensor 6. When a control means 4 controls an oil passage on-off means 3, a signal out of the position sensor 5 expresses a fact that the position of specific part in a controlled system 2 is not changed as well as another fact that hydraulic pressure in the hydraulic power source 1 is changed to some extent, the trouble judging means 7 judges that there is something wrong with the position sensor 5.</p> |
