I am chopping your quote a little so I apologize up front..
Originally Posted by Willx
First part of the remote start is to analyze the outside temperature (not the inside). In theory this works great but in real life if your ambient air sensor on your vehicle doesn't work properly..... HINT! (identified problem and Star Case) then how do you think the remote AC will work
Let me see if I have this correct.. The engineers chose to use outside temp to control the inside temp of my car?
or is what you are saying is that If my car is in auto and set to 70.. It should go to 70 based on the interior temp, because that is what I want the temp to be INSIDE my car. It should chose to either heat or cool my car based on the conditions inside. Now using theory of operation from my past cars/planes it will manipulate a "flapper" (for lack of better term) to set whether it pulls air from the heater core, the evaporator core or ambient air, or combination of any of them based on the external temps. For those of us old guys what I am talking about is what happens when we moved the hot to cold lever back in the day...
if not and it does use external parameters to set internal conditions--rebuttal #2
The theory fails because of thermal loading inside the car due to interior parts heating up by the sun's radiation through the glass without having any method of release by a breeze or something (convection). Using these two basic principles would dictate the state outside the car is significantly different than inside... How many of us have been in upper 80 degree temps only to open the car and it is sweltering due to the sun shining through the windows?
If it truly uses external temp to determine inside operations--how would I expect it to work if I am sitting in San Antonio or Vegas parking lots (or stuck on the spaghetti bowl) in August when the pavement temp is 130+ and all external temps around my car are near 115 or higher? Will it kick into super cold freeze me out on the inside mode to compensate for the external inputs?
To be a bit of an joker.. If they use the exterior temp only to judge my interior conditions can I expect my wipers to come on if I spill a coke because the inside is now wet?