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I am sure there is a place in today's world for algorithms. Apart from the fact they taste good if cooked properly engineers and technical folks are getting a little carried away in my opinion. As an example we have coolant level sensors. That's a pretty standard way to determine if there is coolant in the header tank. But in one of my cars the manufacturer has done away with that sensor and instead uses an algorithm that determines if the coolant level is sufficient, not based on measuring its absence or presence, but by doing calculations on how fast the car engine temperature rises. Obviously that is a complex calculation that has to take into consideration the outside temperature, how much power is being produced and a lot of other factors. My point is if it worked it would be great, but the car had to go back to the dealer 3 times because the message center was giving me dire warnings about coolant level. The dealer finally had to use a scorched earth method of fixing the problem and had to replace a whole bunch of items including the control head for the air conditioning system. But they saved the cost of s sensor in the header tank.
As to tires I am even more skeptical. If the sensors were internal I would be less so, but since they are external my first concern is the sensors are not even remotely getting exposed to the real tire temperatures. The length of the valve stem, the position of the tire, the external temps, the material of the wheel, etc. are all going to influence a temperature reading or calculation. Factor in the RPMs of the wheel and the valve stem sensor's position relative to air flow around the wheels and any temps the sensor and algorithms come up with are going to be inexact. Having said that, there will be a benefit. Treat the readings as meaningless, but pay attention to the normal pattern of temepratures. If the science behind the temperature readings is any good you should not care about absolutes in terms of the number, but you should care about deviation from the norm.
So to say 188 degrees is an upper limit is less valuable information than defining through observation what is a normal set of readings, and if that set of readings is a consistent pattern, then any out of the norm reading will be cause for further investigation regardless of what the raw numbers are.
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