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发明公开
CN101846182A 无级变速器及其控制方法 有权

无级变速器及其控制方法
摘要：
一种无级变速器及其控制方法，其优化副变速机构的变速条件，防止反复进行副变速机构的变速。只有在加速踏板踩到规定开度以上时，变速器控制器(12)才许可副变速机构(30)的变速级从2速变更为1速的2-1变速，所述实际贯穿变速比跨过所述模式切换变速比从高速侧向低速侧变化时，只有在许可副变速机构(30)的2-1变速时，才将副变速机构(30)的变速级从2速变更为1速。
摘要（英）：

The present invention provides a continuously variable transmission and controlling method thereof which optimizes a gear position condition of a subtransmission mechanism and prevents transmission of the subtransmission mechanism. When an accelerator pedal has been depressed to or above a predetermined opening, a transmission controller (12) permits a 2-1 shift, in which a gear position of the subtransmission mechanism (30) is changed from a second speed to a first speed. The gear position of the subtransmission mechanism (30) is changed from the second speed to the first speed when an actual through speed ratio passes a mode switch line from a High side to a Low side while the 2-1 shift is permitted in the subtransmission mechanism (30).

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