Sensor system for controlling ventilation systems in vehicles

US5725425A · kind A · utility

Assignee

• Auto Electronic Corporation · KR

Inventors

• Hanns Rump · Eschborn, DE
• Norbert Pieper · Olfen, DE
• Jorg Hiller · Wetter, DE
• Olaf Kiesewetter · Geschwenda, DE

Key dates

• Filing date: Aug 29, 1996
• Grant date: Mar 10, 1998
• Expiry date: Aug 29, 2016

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B2200/22
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A motor vehicle ventilation system having a recirculation or air input mode in which when the rate of change of a signal from an outdoor gas pollution sensor exceeds a threshold limit, the system is adjusted to the recirculation mode.