Questions tagged [sequencing-logic]

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1 answer
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Identifying attitude control mode in GNC software?

Launch vehicles will generally have multiple multiple attitude control modes. At launch, the engine-gimballing thrust-vectoring system is in charge. In orbit, the reaction control system is (at least ...
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2 votes
1 answer
103 views

Switching logic between throttle modes?

At launch, a vehicle like the space shuttle would command its throttle to do a few things: Ramp up to max throttle Hold max throttle Follow a throttle bucket as function of velocity when near max-Q ...
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1 vote
0 answers
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From attitude control malfunction to launch escape Go signal?

I’ve seen and read about launch failures caused by crossed thrust vectoring wires which fed rock and tilt commands to the wrong engine gimbal actuators (rock command going to tilt cylinder and tilt ...
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5 votes
1 answer
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Logic sequencing: From fault detection to launch escape?

So I'm working on fault insertion for my launch simulation. It's basic: I flip a switch to kill the booster engines of my choice. If two or more engines die, separation is triggered and the launch ...
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