This is the summary of the second hit on Duck Duck Go (the first hit is a troubleshooting article about the feature):
> A built-in load sensor automatically detects the laundry load and a microprocessor optimizes washing conditions such as ideal WATER LEVEL and washing time. Turbo drum washing (option) When "Punch + 3" washing wings turn, the washing tub turns in the opposite direction.
I accidentally searched for this:
load sensing algorithm work on my LG washer?
Adding "how does the" to the beginning of the search gives this as the second hit:
> Water level sensing in LG washers is done differently from how you may be used to seeing it done in other brands. Whirlpool, GE, Electrolux and others use an air tube connecting an air dome on the tub to a pressure sensor with a physical diaphragm or transducer that "feels" the water level increase as an increase in pressure inside the air tube.
Which seems more promising, but I didn't click through.
Appreciate the effort, but my example was for clothes load sensing (what it does before determine the water required.)
I've watched it at work and as best as I can tell, it takes inertial mass readings by wiggling the drum using a specified current, and measuring how far the drum oscillates. Or maybe it predetermines the amplitude and measures the power required?
I'm just guessing. What I want to find out: is either of my guesses close? Is there something else I'm not seeing? Why does it do this 4 times in a row? (In between "wiggles" it will rotate the drum a few times to—my guess—redistribute the load and get an average from the four readings.
Maybe its rose-tinted glasses looking at the web of yesterday, but I have this sneaking suspicion some nerd out there has an entire website devoted to arcane appliance details like this. I would very much like to find and bookmark that site!
The problem I am seeing is that yes, someone will write the exact nerdy explanation on how it works - on a private Facebook group, which you will never find in any search engine. I'm a member of several automotive FB groups and the wealth of knowledge there is enormous - but ultimately it all gets swallowed up in Facebook's belly and is not available for easy search like it used to be. It's a real tragedy.
Yeah the replacement of forums with facebook is one of the worst things to happen to the web. Like craigslist, many of them still exist, but are just not very active.
> A built-in load sensor automatically detects the laundry load and a microprocessor optimizes washing conditions such as ideal WATER LEVEL and washing time. Turbo drum washing (option) When "Punch + 3" washing wings turn, the washing tub turns in the opposite direction.
I accidentally searched for this:
load sensing algorithm work on my LG washer?
Adding "how does the" to the beginning of the search gives this as the second hit:
> Water level sensing in LG washers is done differently from how you may be used to seeing it done in other brands. Whirlpool, GE, Electrolux and others use an air tube connecting an air dome on the tub to a pressure sensor with a physical diaphragm or transducer that "feels" the water level increase as an increase in pressure inside the air tube.
Which seems more promising, but I didn't click through.