Electronic climate control system for automotive vehicles

Details Electronic climate control system for automotive vehicles Electronic climate control system for automotive vehicles

1996-10-31

2000-01-04

Lazarus, Ira S.

Heat exchange

With vehicle feature

Heating and cooling

165 43, 454121, 454156, 62244, B60H 300

Patent

active

060099348

ABSTRACT:
An electronic climate control system for an automotive vehicle comprises a by-pass passage for delivering cool air flowing through an evaporator core directly to discharged-air ventilators, a by-pass door provided at a communication inlet of the by-pass passage for adjusting a flow rate of cool air through the by-pass passage, a hot-water valve provided for adjusting a flow rate of hot coolant to a heater core, and an actuator being common to the by-pass door and the hot-water valve for adjusting a bypass-door opening and a water-valve opening. The actuator acts to fully close the water valve when the by-pass door is fully opened. Also provided are a climate control panel for selecting one of discharged-air outlet modes, a by-pass PBR for monitoring the bypass-door opening, and a control unit for limiting the bypass-door opening to a value less than a maximum opening equivalent to a full-open position of the by-pass door when a predetermined discharged-air outlet mode except VENT mode is selected by the control panel.

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