Lubricant control apparatus for automatic transmission
First Claim
1. 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;
determining means for determining necessary lubricating oil flow on the basis of a calorific value in the speed change mechanism, the calorific value being calculated based upon the detected acting state of the speed change mechanism; and
feeding means for feeding the lubricating oil to the speed change mechanism on the basis of the necessary lubricating oil flow.
1 Assignment
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Accused Products
Abstract
A lubricant control apparatus for an automatic transmission including a lubricating unit for feeding the lubricating oil to the portions of a speed change mechanism so that the heat to be generated in the speed change mechanism may be absorbed and recovered by the lubricating oil. The lubricant control apparatus includes a detector that detects the acting state of the speed change mechanism; a determiner that determines a necessary lubricating oil flow on the basis of the calorific value in the speed change mechanism, the calorific value being calculated from the detected acting state of the speed change mechanism; and a structure for feeding the lubricating oil to the speed change mechanism on the basis of the determined necessary lubricating oil flow. The lubricant control apparatus feeds an optimum lubricating oil flow according to the acting state of the speed change mechanism.
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Citations
23 Claims
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1. 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:
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detecting means for detecting an acting state of the speed change mechanism; determining means for determining necessary lubricating oil flow on the basis of a calorific value in the speed change mechanism, the calorific value being calculated based upon the detected acting state of the speed change mechanism; and feeding means for feeding the lubricating oil to the speed change mechanism on the basis of the necessary lubricating oil flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. 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:
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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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. 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:
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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. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification