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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12601399-B2, on 14 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000853

Lubrication control apparatus for automatic transmission

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Classification
Industrial Motion & Power Transmission › Rotary Motion
Original source
US-12601399-B2, the United States Patent and Trademark Office, 14 April 2026
Document SHA-256
885ec13470ed9e34b3dccdb83ca13aecde9fd5762da4e9eee19123e7421ceeb3

Abstract

A lubrication control apparatus for an automatic transmission includes a first lubrication circuit that supplies lubricating oil to a starting frictional engagement element to be engaged when a vehicle starts, a second lubrication circuit that supplies the lubricating oil to a lubricated portion other than the starting frictional engagement element, and a controller that performs control to increase a flow rate in the first lubrication circuit while limiting a flow rate in the second lubrication circuit when a temperature of the starting frictional engagement element is equal to or higher than a threshold temperature, and the controller changes the threshold temperature in accordance with the temperature of the lubricating oil.

Publication information

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Citation

OpenTechnical Publication OT-2026-000000853, “Lubrication control apparatus for automatic transmission,” published September 15, 2026 at 19:03:29 UTC, https://opentechnical.org/p/OT-2026-000000853.

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