A330 flight controls - EFCS
Slats/flaps
• High lift control is achieved on each wing by : - seven leading edge slats - two trailing edge flaps - two ailerons (ailerons droop function) • Slat and flaps are driven through similar hydromechanical systems consisting of : - Power Control Units (PCU) - differential gearboxes and transverse torque shafts - rotary actuators. • Slats and flaps are electrically signalled through the SFCCs : - control lever position is obtained from the Command Sensor Unit (CSU) by the two SFCCs - each SFCC controls one hydraulic motor in both of the flap and slat PCUs. • Aileron droop is achieved through the primary computers, depending on flap position data received from the SFCC. • The SFCC monitors the slats and flaps drive system through feed-back Position Pick-off Units (FPPU) located at the PCUs and at the outer end of the transmission torque shafts. • Wing Tip Brakes (WTB) installed within the torque shaft system, controlled by the SFCC, prevent asymmetric operation, blow back or runaway. • A pressure-off brake provided between each hydraulic motor of the PCU and the differential gearboxes, locks the slat or flap position when there is no drive command from the SFCC. • Flight Warning Computers (FWC) receive slat and flap position data through dedicated instrumentation Position Pick-off Units (IPPU) for warnings and position indication on ECAM display units.
STL 472.755/92 Issue 4 5.21
飞行翻译公司 www.aviation.cn 本文链接地址：A330 驾驶舱和系统讲解 部分3.pdf
Slats/flaps
• High lift control is achieved on each wing by : - seven leading edge slats - two trailing edge flaps - two ailerons (ailerons droop function) • Slat and flaps are driven through similar hydromechanical systems consisting of : - Power Control Units (PCU) - differential gearboxes and transverse torque shafts - rotary actuators. • Slats and flaps are electrically signalled through the SFCCs : - control lever position is obtained from the Command Sensor Unit (CSU) by the two SFCCs - each SFCC controls one hydraulic motor in both of the flap and slat PCUs. • Aileron droop is achieved through the primary computers, depending on flap position data received from the SFCC. • The SFCC monitors the slats and flaps drive system through feed-back Position Pick-off Units (FPPU) located at the PCUs and at the outer end of the transmission torque shafts. • Wing Tip Brakes (WTB) installed within the torque shaft system, controlled by the SFCC, prevent asymmetric operation, blow back or runaway. • A pressure-off brake provided between each hydraulic motor of the PCU and the differential gearboxes, locks the slat or flap position when there is no drive command from the SFCC. • Flight Warning Computers (FWC) receive slat and flap position data through dedicated instrumentation Position Pick-off Units (IPPU) for warnings and position indication on ECAM display units.
STL 472.755/92 Issue 4 5.21
飞行翻译公司 www.aviation.cn 本文链接地址：A330 驾驶舱和系统讲解 部分3.pdf
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