Temperature control device for automobile air conditioner
First Claim
1. A temperature control device for an automobile air conditioner including a plurality of outlets, an outlet-selecting means for selecting said outlets, a temperature regulating means, a temperature setting means, a first variable resistor whose resistance value changes with movement of said temperature regulating means, a second variable resistor whose resistance value changes with the movement of said temperature setting means, a sensor detecting air temperature in an automobile, an actuator for operating said temperature regulating means, an electronic control circuit for operating said actuator so as to obtain that air temperature in the automobile which is set by said temperature setting means while using inputs from said first and second variable resistors and the sensor detecting the air temperature in the automobile, a cooling unit, and an air conditioner switch for actuating a compressor of said cooling unit so as to make the automobile air conditioner usable for cooling and heating, said device characterized by having an adjusting means for adjusting virtual characteristics of one of the first and second variable resistors and said sensor in response to ON-OFF of said air conditioner switch, whereby the set temperature in the automobile is obtained irrespectively of operation and unoperation of said compressor during heating operation.
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Accused Products
Abstract
A temperature control device for an automobile air conditioner including an electronic control circuit for regulating air temperature in the automobile, by automatically actuating a temperature regulating element of the air conditioner in response to variations of resistance values of resistive elements representing air temperature in the automobile and operative conditions of the temperature regulating element and a temperature setting element. An adjusting means is provided for modifying the virtual characteristics of the aforesaid resistive elements depending on ON or OFF state of a compressor of the air conditioner, whereby the air temperature in the automobile is controlled at a certain value irrespective of ON or OFF state of the compressor.
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Citations
4 Claims
- 1. A temperature control device for an automobile air conditioner including a plurality of outlets, an outlet-selecting means for selecting said outlets, a temperature regulating means, a temperature setting means, a first variable resistor whose resistance value changes with movement of said temperature regulating means, a second variable resistor whose resistance value changes with the movement of said temperature setting means, a sensor detecting air temperature in an automobile, an actuator for operating said temperature regulating means, an electronic control circuit for operating said actuator so as to obtain that air temperature in the automobile which is set by said temperature setting means while using inputs from said first and second variable resistors and the sensor detecting the air temperature in the automobile, a cooling unit, and an air conditioner switch for actuating a compressor of said cooling unit so as to make the automobile air conditioner usable for cooling and heating, said device characterized by having an adjusting means for adjusting virtual characteristics of one of the first and second variable resistors and said sensor in response to ON-OFF of said air conditioner switch, whereby the set temperature in the automobile is obtained irrespectively of operation and unoperation of said compressor during heating operation.
Specification
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- Resources
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Current AssigneeNissan Motor Co., Ltd.
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Original AssigneeNissan Motor Co., Ltd.
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InventorsIijima, Tetsuya
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Primary Examiner(s)Davis, Albert W.
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Assistant Examiner(s)FOCARINO, MARGARET ANN
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Application NumberUS06/146,111Time in Patent Office704 DaysField of Search62/180, 165/16, 165/24, 165/25, 165/26, 165/27, 165/28, 165/30, 165/42, 165/43, 165/23US Class Current165/263CPC Class CodesB60H 1/00878 the components being temper...G05D 23/1925 using a combination of auxi...G05D 23/24 the sensing element having ...
