3 Key Sensors in Your Car's HVAC System
Once upon a time, a car's HVAC system consisted simply of a heater, an air conditioner, and a few positionable vents. Those features still make up the backbone of an automotive HVAC system, yet technological developments have allowed more sophisticated features to evolve, including such things as heated seats, zoned cooling, and automatic control systems.
The complexity of such systems means that cars require a much larger array of sensors in order to stay on top of cabin conditions. By familiarizing yourself with some of the most common types of sensors, you can arm yourself with vital information should problems develop later on. This article takes a look at three key sensors used in your car's HVAC system.
1. Temperature Sensors
Automobiles being produced today contain a staggering number of temperature sensors. These monitor the temperature of everything, from your engine to your exhaust, with plenty in between. In fact, the majority of a car's temperature sensors don't have much to do with the HVAC system at all.
Nonetheless, your HVAC system depends on the data provided by a key set of temperature sensors. Cabin sensors supply vital information about the temperature inside of your car. Some vehicles use just one cabin temperature sensor, while others may incorporate several, often in conjunction with a zoned HVAC system.
Zoned HVAC systems allow different parts of your car to independently control their temperature. Cars with certain auxiliary heating features - like seat warmers - use additional sensors to monitor and regulate their temperature.
Your HVAC system also utilizes temperature sensors on the outside of the car to determine exterior air temperature. This information plays an important role, allowing your HVAC system to determine how much or little it needs to heat the incoming air in order to meet your desired comfort level.
2. Sun Load Sensors
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