All Questions
Tagged with electrical-engineering control-engineering
106
questions
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26
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How do I select equipment for a load management system of EV chargers?
In a student project, I need to design a EV-charging system for a domestic high-storey building. As there is not enough loading(the charging stations are connected to tenant supply of multiple floors),...
- 11
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37
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Using Relay and contactless water level sensor to switch on or off motor pump
I have no prior experience related to electrical projects and I am having confusion about which type of relay and how to connect relay, contactless water level sensor and motor pump.
So basically I ...
0
votes
1
answer
26
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Controls architecture for stepper drivers
I am working on a project which deals with a large number of stepper motors and other devices. A key feature I want to achieve is create a modular/ expandable system, so that new devices can be easily ...
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2
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39
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Methods for precission control of a freezer cooling output
I am doing some experiments in fractional freezing with a modified residential deep freezer. I have programmed my own PID controller on an Arduino setup such that it will not cycle the refrigeration ...
- 8,201
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2
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242
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Measuring Pressure of a Press Machine
I am designing a heat press and need pressure feedback of the force or pressure being applied to the product.
I need to measure the pressure between to press plates on a hydraulic press.
I would like ...
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1
vote
2
answers
119
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Nuclear weapon doubts
Sorry I am not an Engineering professional or student. But I had a question regarding US Nuclear weapons. Specifically, is it possible that Nuclear weapons we created in the 50s still work?
The major ...
- 113
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votes
1
answer
49
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Is a matrix a control system with memory?
In control systems, a system is said to have memory if the output is dependent on previous inputs. By that definition, is a matrix of arbitrary dimensions a system with memory? (I am new to controls.)
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1
vote
1
answer
68
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Matrix Calculation
I would like to Calculate Q. The transpose of U matrix is a 2x5 matrix and U is a 5x2 matrix. Therefore, I was expecting a 5*5 Matrix, which wasn't the case. Can someone please help me to solve Q
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61
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Error Equation of a Control Loop
I want to calculate the error of a control loop. Therefore, the system and the general processes and models are defined as follows:
The equation for error is described as follows:
I do not ...
- 13
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148
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What is the intuitive explanation for why a system can be stable with a negative gain margin?
Beyond the math which shows that a gain of -1 and a phase of -180 (G(s)=-1)causes instability when the open-loop TF is taken to closed loop, the way I've always justified the instability of G(s)=-1 ...
- 133
2
votes
1
answer
674
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How can I control my vehicle’s electric power steering system?
I’m trying to add lane keeping assist and adaptive cruise control to my 2017 Chevrolet Camaro, with the ultimate aim of using Comma.ai’s openpilot (or some other fork) to make my car drive itself. ...
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70
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Express method for economic evaluation of mechatronic devices
Are there quick methods for the economic evaluation of mechatronic devices that have not yet been widely adopted in industry, but are at the stage of prototyping and laboratory experiments?
Basic ...
- 226
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54
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Internal Stability and Small Gain Theorem
I am currently working on a MIMO feedback system and trying to determine its internal stability. The open loop gain of the system is stable and has no internal right half-plane pole-zero cancellations....
1
vote
2
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136
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$\mathcal H_2$ norm for LTV system
Preliminary: Consider a stable, strictly causal discrete-time LTI system with state-space model $\left[\begin{array}{c|c}
A & B\\
\hline
C & \pmb{0}
\end{array}\right]$. ...
- 21
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27
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How to select a burst frequency of an Ultrasonic sensor?
I am using an Ultrasonic sensor to detect obstacles for adas applications. Is there a way to find the optimal burst frequency? experimentally or theoretically? for object detection.
How does changing ...
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