| 摘要 |
<p>When the discharge capacity of a main pump (1102), which discharge capacity changes according to driving force of an internal combustion engine, is less than the level at which hydraulic oil required by a shifting hydraulic circuit (120) can be covered by only hydraulic oil discharged from the main pump (1102), both the hydraulic oil discharged from the main pump (1102) and the hydraulic oil discharged from a sub-pump (1103) are supplied to the shifting hydraulic circuit (120) and to a lubricating hydraulic circuit (140). On the other hand, when the discharge capacity of the main pump (1102) is equal to or higher than the level, the hydraulic oil discharged from the sub-pump (1103) is not supplied to the shifting hydraulic circuit (120) but supplied to the lubricating hydraulic circuit (140) and, at the same time, the hydraulic oil discharged from the main pump (1102) is supplied to the shifting hydraulic circuit (120) and to the lubricating hydraulic circuit (140).</p> |
