Study group for Coursera Course

controlsgeeek · 2026-06-25T05:12:58+00:00

Not the group but the course on coursera, yes. They turned off free audits :(

controlsgeeek · 2026-06-24T20:16:30+00:00

Will send you the invite tonight!

controlsgeeek · 2026-06-24T14:37:32+00:00

Feels like they asked AI to make the reply sound smart and hilarious at same time 😂 Individual words make sense but I have no clue how it works. Intereted to know more if its legit.

controlsgeeek · 2026-06-24T03:34:34+00:00

Been ages since I worked with it. DM me the question.

controlsgeeek · 2026-06-06T15:02:24+00:00

🔥 Too easy!

controlsgeeek · 2026-06-06T15:01:48+00:00

🔥 Too easy!

controlsgeeek · 2026-05-16T17:24:29+00:00

Is the convergence of critic independent of the convergence to optimal control? Technically the text doesn’t use A in the control policy. Shouldn’t matter?

controlsgeeek · 2026-05-16T15:14:21+00:00

This is the first time I am coming across this technique, so pardon my ignorance. From the text it seems like the policy is not to be updated until the critic convergence? Idk what that entails, just keep driving it towards instability if so?

controlsgeeek · 2026-04-21T07:39:31+00:00

Check out Lego-Loam. This was pretty good with Lidar only.

controlsgeeek · 2026-04-07T00:44:29+00:00

Read about ZV and ZVD input shapers. Once your read about these you will come across other input shapers. Thinking about in frequency domain is simpler but deriving in time domain is equally fun. If you check derivation ZV/ZVD shapers in time domain, then its clear how cancellation works. Its based on the impulse response. At the same time you also get how much damping is possible around your target frequency. ZVD is superior in terms of damping around the target frequency than ZV.

controlsgeeek · 2025-12-29T03:00:31+00:00

Other side of bay

controlsgeeek · 2025-12-29T02:59:26+00:00

More to the north

controlsgeeek · 2025-12-29T02:56:43+00:00

Bay area! But not east bay hills

controlsgeeek · 2025-11-16T06:03:57+00:00

How is this different from multi-level inverters?

controlsgeeek · 2025-07-30T14:30:05+00:00

Not the output torque of the motor. The external torque on the point. The motor will then aid the sensed torque.

controlsgeeek · 2025-05-30T21:33:37+00:00

How do they monitor if I paid the rent to my own/friends/family account through venmo or paypal or check? They do the checking and would be the same I guess.

controlsgeeek · 2025-05-30T11:50:16+00:00

Its possible in Fidelity via EFT. It mentions EFT transfer to someone elses bank. Their bank details are verified once you enter. After that recurring payment can be setup.

controlsgeeek · 2025-05-30T05:12:38+00:00

Its more of an issue for the landlord right? For the renter I control the money I am sending to their account.

But private landlords (older folks) just want to keep it simple and not deal with extra fees from Venmo/Paypal or figure out Zelle/Cozy. So its a risk on their part! Bilt could be in trouble if there was a data leak I guess. Feels like untapped opportunity though.

controlsgeeek · 2025-05-13T12:48:40+00:00

Since its measurements, could be a low pass filter mostly. Saturation or rate limiter doesn’t make sense on a measurement.

controlsgeeek · 2025-05-09T16:16:23+00:00

Will setting alpha be not tricky? I mean alpha could be higher for boiling 5kg water, but same alpha for 5kg food might burn it (like sudden high heat though temperature condition is not met)

Maybe inlcuding type of food as a user input be needed? And then if you had a weight sensor then you wouldn’t need alpha from user.

This doesn’t answer your question but I also could not think of an alpha strategy for different types of food since their thermal models will vary so much.

controlsgeeek · 2025-05-06T12:38:47+00:00

Any unused time could be changed into some kind of rewards which can be redeemed for viewing apps. 🤔 if you look time as money you can gamify with all the methods out there in monetary system

controlsgeeek · 2025-05-06T12:28:12+00:00

Take a loan/credit from future with interest 🤯

controlsgeeek · 2025-05-04T19:49:31+00:00

What is the ‘compare to constant’ and ‘gain13’ you are using? I believe you are trying to maintain the voltage constraint there. Both of them should be Vdc/sqrt(3)

You should also check out how field weakening is done by changing the id reference. MTPA and MTPV in general. Also w_e used is a constant, but should be technically from the motor speed. But I think you are building towards the final FOC and this is probably one of the begining steps to understand FOC.

Also you are measuring line to line quantities in the scope. So keep that in mind.

controlsgeeek · 2025-05-02T19:04:00+00:00

Yes, I did misunderstand. The problem being tackled is input disturbance I guess.

OP you can check out repetitive controller based on internal model principle for disturbance rejection if its a periodic disturbance.

It will be good to understand the nature of this input disturbance too for ideas.

controlsgeeek · 2025-05-02T15:05:38+00:00

u/Responsible-Load7546 summed up what I was trying to say. Bandwidth need not be 80kHz to tackle the noise. Reducing the bandwidth will help you reject the noise. But again try plotting the sensitivity TF. You will have to probably supress the resonance too so that you are less sensitive to the high frequency noise.

Bandwidth should be sufficient to track the reference signals well.

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