PULLEY PRESSURE CONTROL APPARATUS FOR BELT-DRIVEN CONTINUOUSLY VARIABLE TRANSMISSION

A road surface friction coefficient calculator is to detect a coefficient of friction on a road surface. A braking force calculator is to detect the braking force of a vehicle. A decelerating calculator is to determine whether the vehicle transitions to a decelerating travel mode. The pulley pressur...

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1. Verfasser: YUICHIRO TAKEMORI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A road surface friction coefficient calculator is to detect a coefficient of friction on a road surface. A braking force calculator is to detect the braking force of a vehicle. A decelerating calculator is to determine whether the vehicle transitions to a decelerating travel mode. The pulley pressure controller is to control pulley pressure in a belt-driven continuously variable transmission. The pulley pressure controller is to increase the pulley pressure by an additional amount when the decelerating calculator determines the vehicle transitions to the decelerating travel mode while the coefficient of friction detected by the road surface friction coefficient calculator is equal to or lower than a reference value. The pulley pressure controller is to reduce the additional amount when the braking force calculator detects an increase in the braking force in the decelerating travel mode. 本发明提供带式无级变速器的带轮侧压控制装置。如果车辆在低摩擦系数路面上转移至减速行驶状态,则带轮侧压控制单元使带轮侧压增加规定的增量,来抑制环形带的打滑,防止驱动轮锁定。驱动轮的锁定在减速行驶状态中的最初的制动时容易发生,如果在最初的制动时没有发生