Lubricant control apparatus for automatic transmission

A lubricant control apparatus for an automatic transmission including a lubricating unit for feeding a lubricating oil to portions of a speed change mechanism so that heat generated in the speed change mechanism may be absorbed and recovered by the lubricating oil, the lubricant control apparatus comprising:

• detecting means for detecting an acting state of the speed change mechanism, which includes at least a plurality of gear stages;
• determining means for determining a necessary lubricating oil flow on the basis of a gear efficiency of a detected gear stage;
• and
• feeding means for feeding the lubricating oil to the speed change mechanism on the basis of the determined necessary lubricating oil flow.

A lubricant control apparatus for an automatic transmission including a lubricating unit for feeding a lubricating oil to portions of a speed change mechanism so that heat generated in the speed change mechanism may be absorbed and recovered by the lubricating oil, the lubricant control apparatus comprising:

• detecting means for detecting an acting state of the speed change mechanism;
• deciding means for deciding whether the transmission is shifting on a basis of the acting state;
• and
• an increasing means for increasing the lubricating oil flow to the speed change mechanism when the decision is affirmed, the increasing means increases the lubricating oil flow for a predetermined time period after shift end, the predetermined time period is set longer when the temperature of the lubricating oil is higher.