Electronic Climate Control

With the use of a microcontroller, the Electronic Automatic Temperature Control (EATC) module analyzes input from the following major sources:
- temperature, function and blower selection (made by the vehicle occupants)
- in-vehicle temperature
- ambient temperature
- sunload
- vehicle speed
- engine coolant temperature

Using these inputs, the microcontroller determines the correct conditions for the following outputs:
- A/C compressor clutch engagement
- blower speed
- air temperature blend door position
- panel/floor door position
- panel/defrost door position
- air inlet duct door position
- outside temperature display

Part 1 Of 2:

Part 2 Of 2:

SYSTEM RESPONSE