Vehicle Side Door Latch Power Release Mechanism with Variable DOF Force-adaptive-recovery Combined Compliant Pair

Abstract

Abstract: Based on a proposed novel variable DOF compliant pair, a variable DOF compliant five-bar mechanism was constructed, that had features such as determined motion at singular positions and force-adaptive position recovery.Four motion modes such as pirot four-bar mechanism, planar five-bar mechanism, crank-shaper mechanism, crank-oscillating block mechanism might be switched by different driving methods and limiting stoppers.To deal with the expected tasks of power release and electric lock actuated with one single actuator, the power release branch of compliant mechanism realized the defined motions and position recovery motions of vehicle side door latch in multiple working modes.Kinematic compatibility of compliant branch and other branches might be measured by rotation center drifting displacement, which was as a compliant adaptive measuring index of the mechanism.

Key words: force-adaptive, compliant pair, variable degree of freedom(DOF) compliant mechanism, vehicle door latch；dynamics simulation

摘要： 基于提出的新型变自由度组合柔顺副，构建了具有奇异位置运动确定和力适应复位特征的变自由度柔顺五杆机构。根据不同驱动方式和不同限位边界，该柔顺机构可实现铰链四杆机构、平面五杆机构、曲柄摇块机构和摆动导杆机构4种运动模式及模式间切换。为了单驱动实现电动开启、电动保险，新型柔顺机构构造的电动开启支链通过多运动模式完成汽车门锁的多工况确定运动及复位运动。各工况下柔顺副扭簧中心槽内的漂移量作为机构柔顺适应性指标，可衡量柔顺支链与其他支链的运动兼容性。

关键词: 力适应, 柔顺副, 变自由度柔顺机构, 汽车门锁, 动力学仿真

CLC Number:

TH112
TH122

WANG Mingyuan1;HANG Lubin1;LIU Zhe2;HUANG Xiaobo1;CHEN Yong2;MIU Hong3. Vehicle Side Door Latch Power Release Mechanism with Variable DOF Force-adaptive-recovery Combined Compliant Pair[J]. China Mechanical Engineering.

王明远1;杭鲁滨1;刘哲2;黄晓波1;陈勇2;缪宏3. 含变自由度力自适应复位组合柔顺副的汽车门锁机构[J]. 中国机械工程.

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