Dual redundant active/active brake-by-wire architecture
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United States of America Patent
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Nov 23, 2004
Grant Date -
Jun 19, 2003
app pub date -
Jan 21, 2003
filing date -
Jul 22, 1999
priority date (Note) -
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Abstract
The braking control system provides dual redundant control of hydraulically operated wheel braking for an aircraft. A primary hydraulic system provides hydraulic power for normal operation of the plurality of wheel brakes, and a secondary hydraulic system provides hydraulic power for alternate operation of the plurality of wheel brakes. The primary hydraulic system comprises at least one primary hydraulic fluid control channel and at least one secondary hydraulic fluid control channel, the primary and secondary fluid channels being redundant and partitioned among the plurality of wheel brakes so that even if one of the primary hydraulic fluid control channels and one of the secondary channels fail to apply pressure, braking will be lost to only a portion of the wheel brakes and the loss will be in a symmetrical pattern.
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