Air-conditioning device

• US 5,452,587 A
• Filed: 07/19/1994
• Issued: 09/26/1995
• Est. Priority Date: 07/20/1993
• Status: Expired due to Term

• Current Assignee: Nippondenso Co., Ltd. (DENSO Corporation)
• Original Assignee: Nippondenso Co., Ltd. (DENSO Corporation)
• Inventors: Honda, Yuji, Samukawa, Katsuhiko, Terada, Tomotsugu
• Primary Examiner(s): Tapolcai, William E.
• Application Number:
  US08/275,729
• Time in Patent Office: 434 Days
• Field of Search: 236/49.3, 62/244, 165/16, 165/22, 165/28
• US Class Current: 62/244
• CPC Class Codes: B60H 1/00735 Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
• CPC Class Codes: B60H 1/00842 the system comprising a plurality of damper doors; Air distribution between several outlets

Abstract

Temperatures in a first air-conditioning zone and in a second air-conditioning zone are controlled highly independently of each other irrespective of a difference between the setpoint temperatures in these air-conditioning zones or the state of the external air temperature. An ECU 23 calculates target blow-out temperatures in an air-conditioning system 7 on the driver'"'"'s seat side and in an air-conditioning system 8 on the driver'"'"'s seat side based upon temperatures Tset(Dr) and Tset(Pa) set by temperature setters 25 and 26, a difference between the setpoint temperatures Tset(Dr) and Tset(Pa), an internal air temperature Tr, an external air temperature Tam, and the amount of solar radiation Ts, and controls, based on the calculated result, the opening degrees of the air-mixing dampers 9, 10 (temperatures of the blown-out airs), blow-out port modes in the air-conditioning systems 7 and 8, and the air blow rate of the blower 3. The ECU 23 corrects the calculation term corresponding to the difference between the setpoint temperatures Tset(Dr) and Tset(Pa) in the air-conditioning zones on the driver'"'"'s seat side and on the side of the seat next to the driver depending upon the data of external air temperature Tam detected by an external air temperature sensor at the time of calculating the target blow-out temperatures.

Claims

1. An air-conditioning device in which a first air-conditioning zone and a second air-conditioning zone are set in a room, and the temperatures in these air-conditioning zones are separately adjusted by the conditioned air blown from the blow-out ports provided for these air-conditioning zones, comprising:

first and second temperature-setting means for separately setting the temperatures in said first and second air-conditioning zones;

a temperature data-detecting means for detecting the temperature inside the room and the temperature outside the room;

a calculation means for calculating first and second target blow-out temperatures for said air-conditioning zones based upon the setpoint temperatures set by said first and second temperature-setting means for said first and second air-conditioning zones, an amount of solar radiation, and temperature data detected by said temperature data-detecting means; and

a temperature-adjusting means for so adjusting the temperatures of the conditioned air from the blow-out ports corresponding to said first and second air-conditioning zones that the first and second target blow-out temperatures calculated by said calculation means are realized;

wherein said calculation means adds a correction which varies depending upon the temperature data outside the room detected by said temperature data-detecting means to a calculation term that utilizes the difference between the setpoint temperatures in said first and second air-conditioning zones at the time of calculating said first and second target blow-out temperatures.

4. An air-conditioning device according to either claim 1, 2 or 3, wherein said first air-conditioning zone and second air-conditioning zone are a pair of regions selected from two regions obtained by dividing the interior of the room of an automobile into right and left sections, two regions obtained by dividing the interior of the room of an automobile into the front an the rear, and two regions obtained by dividing the interior of the room of an automobile into the upper half and the lower half.

2. An air-conditioning device in which a first air-conditioning zone and a second air-conditioning zone are set in a room, and the temperatures in these air-conditioning zones are separately adjusted by the conditioned air blown from the blow-out ports provided for these air-conditioning zones, comprising:

first and second temperature-setting means for separately setting the temperatures in said first and second air-conditioning zones;

a temperature data-detecting means for detecting the temperature inside the room and the temperature outside the room;

a calculation means for calculating first and second target blow-out temperatures for said air-conditioning zones based upon the setpoint temperatures set by said first and second temperature-setting means for said first and second air-conditioning zones, an amount of solar radiation and temperature data detected by said temperature data-detecting means; and

a temperature-adjusting means for so adjusting the temperatures of the conditioned air from the blow-out ports corresponding to said first and second air-conditioning zones that the first and second target blow-out temperatures calculated by said calculation means are realized;

wherein said calculation means adds a correction which varies depending upon said first and second target blow-out temperatures in said respective zones to a calculation term that utilizes the difference between the setpoint temperatures in said first and second air-conditioning zones at the time of calculating said first and second target blow-out temperatures.

3. An air-conditioning device in which a first air-conditioning zone and a second air-conditioning zone are set in a room, and the temperatures in these air-conditioning zones are separately adjusted by the conditioned air blown from the blow-out ports provided for these air-conditioning zones, comprising:

first and second temperature-setting means for separately setting the temperatures in said first and second air-conditioning zones;

a temperature data-detecting means for detecting the temperature inside the room and the temperature outside the room;

a calculation means for calculating first and second target blow-out temperatures for said air-conditioning zones based upon the setpoint temperatures set by said first and second temperature-setting means for said first and second air-conditioning zones, an amount of solar radiation, and temperature data detected by said temperature data-detecting means; and

a temperature-adjusting means for so adjusting the temperatures of the conditioned air from the blow-out ports corresponding to said first and second air-conditioning zones that the first and second target blow-out temperatures calculated by said calculation means are realized;

wherein said calculation means adds a correction which varies depending upon the blow-out port mode in each of the zones to a calculation term that utilizes the difference between the setpoint temperatures in said first and second air-conditioning zones at the time of calculating said first and second target blow-out temperatures.

5. An air-conditioning device in which a first air-conditioning zone and a second air-conditioning zone are set in a room, and the temperatures in these air-conditioning zones are separately adjusted by the conditioned air blown from the blow-out ports provided for these air-conditioning zones, comprising:

first and second temperature-setting means for separately setting the temperatures in said first and second air-conditioning zones;

a temperature data-detecting means for detecting the temperature inside the room and the temperature outside the room;

a calculation means for calculating first and second demanded blow-out temperatures for said air-conditioning zones based upon the setpoint temperatures set by said first and second temperature-setting means for said first and second air-conditioning zones, an amount of solar radiation and temperature data detected by said temperature data-detecting means;

a means for determining a blow-out port mode utilizing said first demanded blow-out temperature and said second demanded blow-out temperature and a target blow-out temperature vs. blow-out port mode characteristics;

a means for generating a temperature difference correction gain depending upon a blow-out port mode and the temperature difference formed between said first and second air-conditioning zones;

a calculating means for calculating a first and second target blow-out temperatures for said air-conditioning zones based upon said first demanded blow-out temperature and said second demanded blow-out temperature, said set-point temperatures set by said first and second temperature-setting means for said first and second air-conditioning zones and said temperature difference correction gain;

a temperature-adjusting means for so adjusting the temperatures of the conditioned air from the blow-out ports corresponding to said first and second air-conditioning zones that the first and second target blow-out temperatures calculated by said calculation means are realized;

wherein said calculation means adds a correction which varies depending upon the temperature data outside the room detected by said temperature data-detecting means to a calculation term that utilizes the difference between the setpoint temperatures in said first and second air-conditioning zones at the time of calculating said first and second target blow-out temperatures.