fahrzeugsteuerungssystem and procedures using a steuerflu00e4che and hilfssteuerflu00e4che with translation

摘要

Control systems and methods for a vehicle such as an aircraft or watercraft employ a trailing edge control surface that is pivotal about a pivot axis fixed relative to the vehicle and is deflected to create control forces, and a tab pivotally mounted to an aft end of the control surface. An aft end of a linkage is connected to the tab spaced from the tab pivot axis, and the linkage extends forward to a forward end that is coupled to fixed vehicle structure, such that deflection of the control surface causes a deflection of the tab as long as the forward end of the linkage does not lie in line with the control surface pivot axis, the in-line position defining a neutral position of the linkage. A gearing control actuator is coupled to the linkage and is operable to position the forward end of the linkage at selectively variable distances on one or the other side of the neutral position, thus providing variable gearing ratios between the control surface and the tab. Tab gearing ratio can be varied as a function of vehicle operating condition. An alternative control system includes a backup tab actuator for providing tab deflection upon failure of the actuator system that deflects the control surface. The tab can be used as a control tab for providing the motive force for moving the control surface, or the tab can be used as a mini control surface by locking the control surface in a fixed position.