JPH10258630A - Automotive air conditioning controller - Google Patents

Abstract

(57) [Problem] To provide a vehicle air-conditioning control device suitable for an electric vehicle or a hybrid electric vehicle, which suitably controls a heating temperature in a vehicle compartment and achieves low power consumption. SOLUTION: A first switch SW1 for normal startup is provided.
A second switch SW2, in a vehicle air conditioning control device including a hot water heating device that generates hot air by heating hot water to a target temperature and exchanging heat between the heated hot water and air, The control device 23 is provided for setting the target temperature of the hot water when activated by the second switch SW2 to a value lower than the target temperature when activated by the first switch SW1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conditioning control device for air-conditioning the interior of an electric or hybrid electric vehicle, and more particularly to an air-conditioning control device using a hot-water type heating device.

[0002]

2. Description of the Related Art As an air-conditioning control device for air-conditioning the interior of an automobile, there is known an air-conditioning control device using a hot-water heating device for heating using hot water. As shown in FIG. 6, the hot water type heating device exchanges heat between hot water and air to generate hot air, a hot water type heat exchanger 11, a circulation pump 13 for circulating hot water, and hot water heating for heating hot water. And a vessel 15. The air-conditioning controller further includes a water temperature sensor 17 for detecting the temperature of the hot water, a switch SW1 for activating the hot water-type heating device, a control device 23 for controlling the temperature of the hot water, A blower 27 for generating a flow. The control device 23 has a predetermined target temperature and water temperature sensor 17.
The temperature of the hot water, that is, the temperature of the hot air, is controlled by controlling the hot water heater 15 based on the water temperature input from.

[0003] In the conventional air-conditioning control device configured as described above, the occupant turns on the switch SW1 to start the hot water heating device. At this time, the hot water is heated by the hot water heater 15 to a constant target temperature regardless of the temperature in the vehicle interior. For example, as shown in FIG.
℃ controlled. The heated hot water is supplied to the circulation pump 13
Circulates in the circulation path 25 and exchanges heat with the air flowing through the air conditioning duct 29 in the hot water type heat exchanger 11 to generate hot air at a predetermined temperature in the air conditioning duct 29, It is sent out to the room and heated.

[0004]

However, in such an air-conditioning control device, the target temperature is set on the assumption that the outside air temperature is low, such as in winter, and that the heating capacity is extremely required. As described above, the temperature of the hot water is controlled based on the constant target temperature regardless of the temperature in the vehicle interior. For this reason, hot water requires heating capacity very much, such as in winter, even when using heating in the middle of spring or autumn, when the temperature in the cabin is high, or when heating is not so required. The temperature is controlled to the same as the case. Therefore, when the temperature in the vehicle interior is high, such as when the heating capacity does not require much heating, unnecessarily heating the hot water,
There is a problem that the occupant feels discomfort because unnecessary power is consumed and unnecessarily high-temperature hot air is blown out.

Accordingly, the present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide an electric vehicle or an electric vehicle which suitably controls the heating temperature in a vehicle compartment and realizes low power consumption. An object of the present invention is to provide a vehicle air conditioning control device suitable for a hybrid electric vehicle.

[0006]

A first air-conditioning control device according to the present invention heats hot water to a first switch for starting and a target temperature and exchanges heat with the heated hot water and air. An air-conditioning control device including a hot-water heating device that generates hot air used for heating by causing the second switch and the target temperature of the hot water when activated by the second switch is set to the first temperature. And a control device for setting the temperature to a value lower than the target temperature of the hot water when activated by the switch.

[0007] A second air conditioning control device according to the present invention is a hot water type heating device that heats hot water to a target temperature and exchanges heat between the heated hot water and air to generate hot air for heating. In the air-conditioning control device provided, a set temperature input means for inputting a temperature set value of the hot air, and a target temperature of hot water when the temperature set value input by the set temperature input means is smaller than a predetermined value, And a control device for setting the temperature to a value lower than the target temperature when the temperature set value is equal to or higher than a predetermined value.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a vehicle air-conditioning control apparatus according to the present invention.

Embodiment 1 FIG. 1 is a vehicle air-conditioning control device according to the first embodiment (hereinafter, referred to as an “air-conditioning control device”).
It is a block diagram of. The air-conditioning control device of the present embodiment is different from the conventional air-conditioning control device shown in FIG. 5 in that a second switch SW2 for activating a hot water heating device in an energy saving mode (details will be described later) is provided to the control device 23. It is provided. Note that the switch SW1 shown in FIG. 6 in the related art is hereinafter referred to as a “first switch”.
The mode when activated by the first switch SW1 is referred to as “normal mode”, and the mode when activated by the second switch SW2 is referred to as “energy saving mode”.
Hereinafter, the operation of the air-conditioning control device of the present embodiment will be described.

In the air-conditioning control device according to the present embodiment, the first
, Ie, the operation in the normal mode, is as described in the related art. Next, a description will be given of an operation in the case of being activated by the second switch SW2, that is, an operation in the energy saving mode.

In the energy saving mode, as shown in FIG. 2, the target temperature of the hot water is set to a value lower than the target temperature of the predetermined hot water in the normal mode. As described above, in the air-conditioning control device of the present embodiment, when the second switch SW2 is activated, the target of the hot water is set to a lower temperature (50 ° C. in FIG. 2) than when activated by the first switch SW1. Since the temperature is controlled, the temperature of the hot air is also controlled to a lower temperature than in the normal mode.

Therefore, during heating when the heating capacity does not require much, such as when the outside air temperature is high, the occupant is required to be in the second position.
By activating the heating device by the switch SW2, the temperature of the hot air is not unnecessarily heated to a high temperature, so that a heating at a comfortable temperature and energy saving can be performed.

Embodiment 2 FIG. FIG. 3 shows a block diagram of a vehicle air conditioning control device according to the second embodiment. The air-conditioning control device according to the present embodiment includes, in the automotive air-conditioning control described in the first embodiment, a set temperature input unit 21 for inputting a set temperature of hot air instead of the second switch SW2. 23. In the first embodiment, the target temperature of the hot water is changed according to the type of the activated switch. However, here, the target temperature is changed based on the set value set in the set temperature input unit 21.

FIG. 4 shows a set temperature input section 21 for inputting a set temperature. The set temperature input unit 21 has a setting lever 31 that can move left and right.
Is set according to the position of. That is, the setting lever 31 outputs to the control device 23 a set value corresponding to the position of the setting lever 31 set by the occupant. The control device 23 of the present embodiment sets the target temperature of the hot water when the setting lever 31 is at the center from the left end (Cold) based on the set value from the set temperature input unit 21, and sets the target temperature of the setting lever 31 from the center to the right end (Hot). ) Is set so as to be lower than the target temperature at the time of (1). FIG. 5 shows the relationship between the temperature set value and the target temperature at this time. As shown in this figure, when the setting lever 31 is at the center from the left end (Cold), the target temperature is set to 50 ° C., and when the setting lever 31 is at the right end (Hot) from the center, it is set to 70 ° C. You. In this way, in the air conditioning control device of the present embodiment, the target temperature of the hot water is controlled based on the set value corresponding to the position of the setting lever 31 of the set temperature input unit 21. Here, the target temperature based on the temperature set value is controlled in two stages, but the target temperature may be controlled in more stages based on the temperature set value, It may be controlled so as to change linearly in response.

As described above, the air-conditioning control device according to the present embodiment changes the target temperature of the hot water based on the set value from the set temperature input unit 21, and thus performs heating when the temperature in the passenger compartment is high or the like. In this case, heating that is comfortable for the occupant and that achieves energy saving can be performed.

[0016]

According to the first air-conditioning control apparatus of the present invention, the second switch is provided, and when the second switch is activated, the control target temperature of the hot water is set to the first temperature for normal activation. Therefore, a comfortable heating temperature can be obtained and the power consumption can be reduced during heating when the temperature in the vehicle compartment is high because the temperature is set lower than the target temperature when the switch is activated.

According to the second air-conditioning control device of the present invention, the set temperature input means is provided, and the target temperature when the temperature set value set by the set temperature input means is smaller than the predetermined value is set to be smaller than the predetermined value. Since the temperature is set lower than the target temperature when the temperature is high, a comfortable heating temperature can be obtained and the power consumption can be reduced during heating when the temperature in the vehicle interior is high.

[Brief description of the drawings]

FIG. 1 is a block diagram of an air conditioning control device according to a first embodiment.

FIG. 2 is a diagram illustrating a temperature change of hot water in each mode in the air conditioning control device according to the first embodiment.

FIG. 3 is a block diagram of an air conditioning control device according to a second embodiment.

FIG. 4 is a diagram showing a set temperature input unit.

FIG. 5 is a diagram illustrating a relationship between a temperature set value and a target temperature of hot water in the air conditioning control device according to the second embodiment.

FIG. 6 is a block diagram of a conventional air conditioning control device.

FIG. 7 is a diagram showing a temperature change of hot water in a conventional air conditioning control device.

[Explanation of symbols]

11 hot water heat exchanger 13 circulating pump 15
Hot water heater, 17: water temperature sensor, 21: set temperature input section, 23: control device, 25: circulation path, 27: blower, 29: ventilation duct, 31: setting lever, S
W1 ... (first) switch, SW2 ... second switch.

Claims (2)

[Claims] A first switch for activation; a hot water heating device for heating hot water to a target temperature and exchanging heat between the heated hot water and air to generate hot air used for heating; An air conditioning control device comprising: a second switch; and a target temperature of the hot water when activated by the second switch is lower than a target temperature of the hot water when activated by the first switch. An air-conditioning control device for a vehicle, comprising: a control device that sets the air conditioning. 2. An air-conditioning control device comprising a hot-water heating device for heating hot water to a target temperature and exchanging heat between the heated hot water and air to generate hot air for heating. Setting temperature input means for inputting a set temperature value of the temperature, and a target temperature of the hot water when the temperature set value input by the set temperature input means is smaller than a predetermined value. An air-conditioning control device for a vehicle, comprising: a control device for setting a temperature lower than a target temperature.