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US 6,598,456 B2Granted
Method and systems for control of acceleration pulses generated by HYGE type crash simulation sleds
OwnerGerald R. Pottsinventor
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Abstract
An acceleration pulse modulation method for HYGE (Hydraulically Controlled, Gas Energized) crash simulation sleds uses servo-controlled accelerators on moveable parts of the crash simulator components and acceleration measurement instrumentation for comparison of measure acceleration of the sled with a desired acceleration to enable dynamic adjustment of the total accelerating force applied to the sled via servo-controlled accelerators, based upon measured acceleration error in order to eliminate acceleration error.
Claims8
A method of acceleration pulse modulation for a hydraulically controlled, gas energized crash simulation sled by:
- attaching one or more servo-controlled accelerators to moveable parts of a hydraulically controlled, gas energized actuator or crash simulator sled;
- installing a generic pulse shaping metering pin or total removal of the metering pin;
- and
- measuring the acceleration of said sled, then comparing the measured acceleration of the sled with the desired acceleration either at any instant in time during the sled launch or following the launch and dynamically adjusting the total accelerating force applied to the sled via the one or more servo-controlled accelerators, such adjustment to be based upon the acceleration error found during the comparison of sled acceleration with the desired acceleration.
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Dependencies are inferred from the claim text.