| 摘要 |
PURPOSE:To minimize the generated oil pressure of an oil pressure feed means, so as to raise the efficiency of a speed change gear, by controlling the generated oil pressure of the oil pressure feed means, based on the higher side oil pressure among oil pressure fed to respective cylinders, which control the groove width of a pair of speed change pulleys. CONSTITUTION:Oil presssure sent from an oil pressure feed means SP to the first regulating means V1 and the second regulating means V2, through main circuits ML, ML1, ML2, is fed to cylinders C1, C2 of respective pulleys P1, P2 through the first and the second control circuits CL1, CL2, respectively, after being adjusted to the needed pressure. A control means SV is set in circuits PL1, PL2 which branch off from both control circuits CL1, CL2, the higher side oil pressure out of the two circuits PL1, PL2 is detected, and the generated oil pressure of the oil pressure fed means SP is controlled based on this detected oil pressure. With this constitution, as the feed oil pressure can be controlled according to the needed pressure of each of the cylinders C1, C2, the energy efficiency of the speed change gear can be raised. |
