| 摘要 |
<p>A fluid supply system is provided for cooling and lubricating a transmission of an automobile, which includes, but is not limited to a cooling channel for cooling the transmission and a lubrication channel for lubricating the transmission. The lubrication channel communicates with the cooling channel via a shift valve. The shift valve is adapted to provide at least a first valve status, by which the cooling channel is connected to the lubrication channel via only one first valve path, and a second valve status, by which the cooling channel is connected to the lubrication channel via at least the first valve path and by which the cooling channel is connected in addition via a second valve path to a bypass channel bypassing the lubrication channel. Since at least two different valve statuses optimized for low and high power are provided, it is possible to reduce unnecessary spin losses over the whole range of applied powers. Further, there is no need for unfavorable compromises, so that a reduced flow generation loss over the whole range of applied powers is provided, while sufficient cooling and lubricating is safeguarded at the same time.</p> |
