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Development of an Automatic Windshield Defogging System

Journal Article
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 20, 2009 by SAE International in United States
Development of an Automatic Windshield Defogging System
Citation: Kwon, C., Jang, K., Lee, C., Jung, S. et al., "Development of an Automatic Windshield Defogging System," SAE Int. J. Passeng. Cars – Mech. Syst. 2(1):404-409, 2009,
Language: English


The development of an automatic defogging system using an accurate windshield humidity sensor and the existing HVAC hardware is described herein. Improved cabin temperature control and forward visibility for the driver was achieved using a sophisticated automatic defogging strategy integrated into the Automatic Temperature Control microprocessor. Laboratory tests were conducted under various weather conditions and test modes using a climate wind tunnel and field tests were conducted in North America The automatic defogging system worked well in all cases