HYDRAULIC CONTROL DEVICE OF POWER SPLIT TYPE CONTINUOUSLY VARIABLE TRANSMISSION

• Main Author: SATO HIDEKI
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a hydraulic control device capable of stably executing switching between following both modes, in a power split type continuously variable transmission capable of traveling in a continuously variable transmission mode in which only a continuously variable transmission is driven, or in a split mode in which both of an auxiliary transmission and the continuously variable transmission are driven.SOLUTION: Clutch switching control performing switching of a travel mode of a power split type continuously variable transmission is allowed or regulated based on original hydraulic pressure of clutch control.SELECTED DRAWING: Figure 1 【課題】無段変速機のみが駆動する無段変速機モードと、副変速機と前記無段変速機とを併用して駆動するスプリットモードとで走行可能な動力分割式無段変速機において、両モードの切替えを安定して実施可能な油圧制御装置の提供を目的とする。【解決手段】動力分割式無段変速機の走行モードの切替えを行うクラッチの切替え制御を、クラッチ制御の元油圧に基づき許可、又は規制する。【選択図】図１