drnaphtali Posted February 6, 2019 Share Posted February 6, 2019 As per title Link to comment https://forums.kleientertainment.com/forums/topic/102556-pid-control-and-variable-controllable-valves/ Share on other sites More sharing options...
TG pro Posted February 6, 2019 Share Posted February 6, 2019 Can you explain? Link to comment https://forums.kleientertainment.com/forums/topic/102556-pid-control-and-variable-controllable-valves/#findComment-1151513 Share on other sites More sharing options...
The Plum Gate Posted February 6, 2019 Share Posted February 6, 2019 https://en.m.wikipedia.org/wiki/PID_controller Link to comment https://forums.kleientertainment.com/forums/topic/102556-pid-control-and-variable-controllable-valves/#findComment-1151774 Share on other sites More sharing options...
drnaphtali Posted February 7, 2019 Author Share Posted February 7, 2019 As per above link, a control loop yeah. Simply put, you give the controller an input ( e.g. temperature sensor) and set point (e.g. desired temperature). The PID will then output a variable (analog) signal to an actuator (e.g. variable valve). The size of the output signal is dependensant on the difference between the input and the setpoint (multiplied with a derivitave and integrator) in order to attempt to get the input closer to the setpoint. Example might be to control the flow rate of a coolant in a tank heat exchanger. The input sensor is a temperature sensor in the tank and the actuator is a valve which can be automatically controlled from 0 to 1000 g/s. If the temperature sensor reads a value higher than the set point, the PID controlled will open up the valve to allow more coolant in the tank for increased heat exchange. As dT increases, the valve would open more, until dT decreases which would close the valve yo reduce the heat exchange. Hope that makes sense? It would make control asepcts so much easier in the game. Currently the game only accomodates steady-state systems...worse still you need to go calculate the exact flow rate of coolant required to cool a system. You would also not be able to get the EXACT quantities required...therefore the small error will creep up later in the game to give you problems. That brings me to another feature I would like to see in the game: Flowrate counters. I would like to measure the total amount of gas or fluid which passed a certain point in a cycle. Link to comment https://forums.kleientertainment.com/forums/topic/102556-pid-control-and-variable-controllable-valves/#findComment-1151876 Share on other sites More sharing options...
The Plum Gate Posted February 7, 2019 Share Posted February 7, 2019 Sounds like a two point measuring system with a variably open valve. Varies depending on the measured states. It was hard enough to get a clean shutoff valve into automation. Link to comment https://forums.kleientertainment.com/forums/topic/102556-pid-control-and-variable-controllable-valves/#findComment-1151954 Share on other sites More sharing options...
TG pro Posted February 8, 2019 Share Posted February 8, 2019 So... It's kinda like a while loop? Link to comment https://forums.kleientertainment.com/forums/topic/102556-pid-control-and-variable-controllable-valves/#findComment-1152299 Share on other sites More sharing options...
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