---
publication_id: "OT-2026-000000853"
title: "Lubrication control apparatus for automatic transmission"
published_at: "2026-09-15T19:03:29.903743Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000853"
categories:
  - "industrial-motion-power-transmission/rotary-motion"
keywords:
  - "f16h57/0473"
  - "f16h57/0413"
  - "f16h57/0415"
  - "f16h57/0435"
  - "f16h57/0439"
---

# Lubrication control apparatus for automatic transmission

## 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.