CONTROLLER OF TRANSMISSION

• Main Authors: KABE TOMOAKI, HIROE ATSUSHI, TASAKA SO
• Format: Patent
• Language: English; Japanese
• Published: 08.04.2021
• 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

To determine a belt slip even in a case where the belt slip occurs in a state where an actual gear ratio value does not deviate from the maximum or minimum gear ratio on a mechanism.SOLUTION: A controller of a continuously variable transmission 4 comprises: a deceleration calculation means 82 that calculates the deceleration of drive wheels 7 based on the rotational state of the drive wheels 7; a gear ratio change rate calculation means 83 that calculates a gear ratio change rate, which is a time change rate of a gear ratio of the continuously variable transmission 4; and a slip determination means 84 that determines that belt slip has occurred when the deceleration calculated by the deceleration calculation means 82 exceeds a predetermined deceleration and the gear ratio change rate calculated by the gear ratio change rate calculation means exceeds a predetermined change rate.SELECTED DRAWING: Figure 1 【課題】実変速比の値が機構上の最大または最小の変速比を外れない状態でベルトスリップが発生した場合にもベルトスリップを判定することができるようにする。【解決手段】無段変速機４の制御装置であって、駆動輪７の回転状態から駆動輪７の減速度を算出する減速度算出手段８２と、無段変速機４の変速比の時間変化率である変速比変化率を算出する変速比変化率算出手段８３と、減速度算出手段８２で算出された減速度が所定減速度を超え、且つ、変速比変化率算出手段で算出された変速比変化率が所定変化率を超えた場合に、ベルトのスリップが発生したと判定するスリップ判定手段８４とを備える。【選択図】図１