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    • 2. 发明公开
    • ALTITUDE LOSS AFTER TAKE-OFF WARNING SYSTEM UTILIZING TIME AND ALTITUDE.
    • AUF ZEIT UNDHÖHEBASEERT WARNUNGSSYSTEMFÜRHÖHENVERLUSTNACH DEM AUFSTIEG。
    • EP0214272A4
    • 1987-07-06
    • EP86902090
    • 1986-02-21
    • SUNDSTRAND DATA CONTROL
    • GROVE MICHAEL M
    • G01C21/00B64D45/04G01C5/00G05D1/08G08B23/00G06F15/48
    • G01C5/005
    • Warning systems for aircraft that provide a warning to the pilot of an excessive altitude loss or an excessive descent rate after take-off as long as he is flying below a predetermined altitude have the problem that they require a valid radio altitude signal for proper operation, and tend to generate nuisance warnings when used in low flying aircraft. This problem is solved by comparing the accumulated altitude loss after take-off (12, 14, 62, 34) with the product of a barometrically derived altitude and the length of time the aircraft has been flying (12, 14, 30, 32, 34). A warning is generated if the altitude loss is excessive for the accumulated time-altitude product after take-off (38, 40). Thus, the system is more sensitive immediately after take-off and becomes less sensitive as flight time is accumulated to permit low level maneuvering without generating false or nuisance warnings, and does not require a valid radio altitude signal to generate a warning.
    • 只要飞行员在低于预定高度飞行时向飞行员提供飞机高度丢失或飞行后降落率警告的飞机警告系统存在的问题是,他们需要有效的无线电高度信号才能正常操作, 当在低空飞行的飞机上使用时往往会产生令人讨厌的警告。 通过比较起飞后累积的高度损失(12,14,62,34)与气压导出的高度和飞机已经飞行的时间长度的乘积(12,14,30,32, 34)。 如果起飞后累积的时间 - 高度产品的高度损失过高(38,40),则会生成警告。 因此,系统在起飞后立即变得更为敏感,并且随着飞行时间累积而变得更加敏感,从而允许低水平的操纵而不产生虚假或不当的警告,并且不需要有效的无线电高度信号来产生警告。
    • 6. 发明公开
    • AIRCRAFT TERRAIN CLOSURE WARNING SYSTEM WITH DESCENT RATE BASED ENVELOPE MODIFICATION.
    • FLUGZEUGTERRAINANNÄHERUNGSWARNSYSTEMMIT AUF DIE ABSTIEGGESCHWINDIGKEIT BASIERTENHÜLLENÄNDERUNG。
    • EP0217852A4
    • 1987-07-06
    • EP86902091
    • 1986-02-21
    • SUNDSTRAND DATA CONTROL
    • GROVE MICHAEL M
    • G01C21/00B64D45/04G01C5/00G05D1/08G08B23/00G06F15/48
    • G01C5/005
    • Aircraft ground proximity warning systems that provide the pilot with a warning in the event that the closure rate with terrain is too high have the problem that when such systems are used in aircraft that are intentionally flown at high descent rates, such as occur in dives, nuisance warnings can occur. In order to minimize the problem, the criteria necessary to generate a terrain closure warning are modified as a function of the descent rate of the aircraft (14) to prevent the closure rates encountered as a result of high descent rates from generating nuisance warnings. Closure rate warnings are given based on radio altitude (16), radio and barometric altitude rates (26, 14), airspeed (17), flap and landing gear position (18, 20), mission mode (21) and weight on wheels (22) signal inputs.
    • 如果地形的封闭率太高,向飞行员提供警告的飞机地面接近警告系统存在这样的问题,即当这种系统用于有意以高下降速率飞行的飞机中时(诸如在潜水中出现)时, 滋扰警告可能发生。 为了使问题最小化,产生地形关闭警告所必需的标准作为飞机下降率(14)的函数而被修改,以防止由于高下降率而产生的闭合率产生麻烦警告。 基于无线电高度(16),无线电和气压高度速率(26,14),空速(17),襟翼和起落架位置(18,20),任务模式(21)和车轮重量 22)信号输入。