Process and apparatus for regulating an interior temperature of

Details Process and apparatus for regulating an interior temperature of Process and apparatus for regulating an interior temperature of

1990-10-23

1991-09-24

Tanner, Harry B.

Automatic temperature and humidity regulation

Mixing fluid of dissimilar temperature

Plenum type

236 493, 25112905, 318599, B60H 100, F24F 1106

Patent

active

050507958

ABSTRACT:
According to a process of this invention for regulating an interior temperature of a motor vehicle, a nominal temperature is set, an interior space temperature and an exterior temperature are measured, a motor (M) is synchronously controlled for positioning an adjustable control member (L) which influences the amount of heat fed to an interior space (IR), a first cyclical signal is produced which is applied to a second terminal (B2) of the motor and which influences the creation of a second cyclical signal for driving the motor via a comparator (K), a difference signal is produced from the nominal temperature, the interior space temperature, the exterior temperature, and a position signal which with the comparator produce a third cyclical signal from the second cyclical signal and the difference signal that controls the motor via a first terminal (B1) so that an effective motor current corresponds to a difference between the first cyclical signal and the third cyclical signal.

REFERENCES:
patent: 3443121 (1969-05-01), Weisbrod
patent: 4227645 (1980-10-01), de La Farge et al.
patent: 4368843 (1983-01-01), Kai et al.
patent: 4611755 (1986-09-01), Miyanaga et al.
patent: 4698980 (1987-10-01), Noguchi et al.
patent: 4830274 (1989-05-01), Johnson et al.
patent: 4871011 (1989-10-01), Takahashi et al.

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