Vehicle door closure is operated by drive with preferably piezoelectric actuator or magnetostrictive or electrostrictive actuator

摘要

The door closure has a central locking element (2) operated by a drive (1) which has a magnetostrictive and/or electrostrictive and/or piezoelectric actuator (5) such as a solid body actuator. The piezo electric actuator can be designed as a multi-layer structure with several superposed piezo ceramic layers. The actuator is attached to the central locking element through a lever system.