Patent ID: 7357093
Filing Date: 2008-04-15
Classification: B63G,F41F

Abstract:
1. A submersible vehicle object ejection control system, comprising: memory having stored therein a plurality of pump speed command profiles, each pump speed command profile based at least in part on vehicle depth, vehicle speed, type of object being ejected, maximum noise emission magnitude during object ejection, and object exit velocity; a launch control circuit adapted to receive data representative of at least current vehicle depth, current vehicle speed, and the type of object being ejected and operable, upon receipt thereof, to (i) retrieve one of the plurality of pump speed command profiles from the memory and (ii) supply pump speed commands representative of the retrieved pump speed command profile; a pump speed sensor adapted to sense a rotational speed of a pump and supply a pump speed sensor signal representative thereof; and a pump controller coupled to receive the pump speed commands and the pump speed sensor signal and operable, in response thereto, to (i) compare the pump speed commands and the pump speed sensor signal and (ii) supply a drive signal based on the comparison.