JPH0728970Y2 - Mode controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a mode control device capable of quickly setting, for example, an outlet mode in an air conditioner for a vehicle.

(Prior Art) Generally, an air conditioner for an automobile, which is a so-called fully automatic air conditioner or an automatic air conditioner for air-conditioning an interior of an automobile, is disclosed in, for example, Japanese Utility Model Laid-Open No. 63-170306. Such an air conditioner includes various air conditioning members that perform air conditioning in the vehicle interior based on air conditioning information about air conditioning in the vehicle interior detected by various sensors attached to various parts of the vehicle and a passenger's request for air conditioning in the vehicle interior. The optimum air conditioning of the vehicle interior is performed by controlling the.

Conventionally, in such an air conditioner, for example, the control for setting the outlet of the air blown into the vehicle interior, that is, the so-called outlet mode control is performed by the device configured as shown in FIG. It is like this.

As shown in the figure, various sensors 1 arranged in various parts of the vehicle
And the room temperature setting device 2 provided in the vehicle compartment are connected to the target outlet temperature calculation unit 3 for calculating the target outlet temperature.

The target outlet temperature calculation unit 3 blows into the vehicle interior based on various air conditioning information regarding the air conditioning of the vehicle interior detected by the various sensors 1 and the room temperature set temperature set by the passenger operating the room temperature setting device 2. A target outlet temperature, which is the target temperature of the air to be discharged, is calculated and output to the control unit 4.

Then, the control unit 4 controls the mode door actuator (hereinafter, referred to as MA) 5 that drives the mode door that selects the air outlet according to the target air outlet temperature. It is designed to be set as shown in.

In FIG. 5, the outlet mode is a vent mode in which conditioned air is blown out from a vent outlet in the center of the instrument in the vehicle, a foot mode in which conditioned air is blown out from the feet of the front seat occupant, and both of these outlets. In the case of the bi-level mode in which the conditioned air is blown out, it is shown that any one of the above modes is set based on the target blowout temperature input by the control unit 4.

As shown in the figure, in the outlet mode, the temperature at which the mode is switched differs depending on whether the target outlet temperature is in the rising state or in the falling state, and switching with a so-called hysteresis is possible. It is supposed to be done.

The control unit 4 stores set temperatures A, B, C, D for switching the modes, and the control unit 4 sets the target blowout temperature output by the target blowout temperature calculation unit 3 and these set temperatures. The outlet mode is set by comparing and.

Specifically, the control unit 4 determines that the input target outlet temperature T is
By determining whether the target blowout temperature is increasing or decreasing from the previously input target blowout temperature, it is determined whether the target blowout temperature is in the rising state or in the falling state. T is compared with the set temperatures B and D, and T <B
If so, the vent mode is set, if B ≦ T ≦ D, the bilevel mode is set, and if D <T, the foot mode is set.

When the control unit 4 determines that the target blowout temperature is in the lowered state, the control unit 4 compares T with the set temperatures A and C. If T <A, the vent mode is set. If A ≦ T ≦ C, the bilevel mode is set. To
If C <T, the foot mode is set. That is, the control unit 4 sets the outlet mode by comparing the input target outlet temperature with the respective set temperatures.

As a result, the conditioned air supplied to the vehicle interior is blown out into the vehicle interior from the target outlet temperature, that is, the air outlet corresponding to the temperature of the conditioned air, so that the passengers can feel comfortable. There is.

(Problems to be solved by the invention) Incidentally, in the conventional air conditioner for a vehicle, the air outlet mode is often the three modes as described above. There are various shapes, and accordingly, in order to perform more optimal air conditioning for passengers in the vehicle compartment, diversification of air outlets is desired. Therefore, conventionally, a proposal has been made to provide a large number of air outlets according to this.

However, when a large number of outlet modes are set by the above proposal, the set temperature becomes large,
In the conventional device that sets the outlet mode by comparing the preset temperature and the target outlet temperature, the outlet mode is set by comparing such a large number of set temperatures with the target outlet temperature. It will be set, and the number of comparisons will increase. As a result, there is a problem in that the processing time until the outlet mode is set becomes long, and the responsiveness of setting the outlet mode to changes in the target outlet temperature deteriorates.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a mode control device capable of quickly setting an operation mode of an air conditioning member.

[Structure of the Invention] (Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention includes various sensors attached to various parts of a vehicle and a room temperature setting device for inputting a room temperature setting temperature required by an occupant. A target outlet temperature calculating means for calculating a target outlet temperature of the air blown into the vehicle compartment based on the room temperature set temperature input by the room temperature setting device regarding the air conditioning information about the air conditioner in the vehicle compartment detected by the various sensors; In an automotive air conditioner that air-conditions the interior of a vehicle by sequentially switching various operation modes of an air-conditioning member that performs air-conditioning of the interior of the vehicle according to the target outlet temperature, Storage means for storing the set temperatures for specifying the respective set ranges of the operation modes and the operation modes already set, and before corresponding to the operation modes stored in the storage means Based on the set temperature, the target outlet temperature newly calculated by the target outlet temperature calculation means outputs the mode signal for switching the operation mode when the target outlet temperature is not within the set range and after switching the mode signal to the air conditioning member. While the operation mode is stored in the storage means, when the operation mode is within the set range, the mode setting means sets the current operation mode by not switching the operation mode. To do.

(Operation) The present invention configured as described above operates as follows.

The mode setting means, when the target outlet temperature newly calculated by the target outlet temperature calculation means is input, the already set operation mode stored in the storage means, that is, the set temperature corresponding to the current operation mode is input, This set temperature is compared with the input target outlet temperature to determine whether the input target outlet temperature is within the set range of the current operation mode.

Then, as a result of this determination, the mode setting means, if the newly input target outlet temperature is not within the set range,
It is determined that the operation mode needs to be switched, and the mode signal for switching the operation mode to a mode other than the current mode, that is, a mode in which the newly input target outlet temperature is within the set range is output from the air conditioning member. Further, the mode setting means stores the operation mode after switching in the storage means.

On the other hand, when the newly input target outlet temperature is within the set range of the current operation mode, the mode setting means does not switch the operation mode and leaves the operation mode as the current operation mode.

In this way, the mode setting means can set the operation mode of the air conditioning member only by comparing the set temperature corresponding to the current operation mode with the target outlet temperature calculated by the target outlet temperature calculating means.

Therefore, the set temperature compared with the target outlet temperature by the mode setting means is only the set temperature corresponding to the current operation mode. Therefore, the number of comparisons does not change regardless of the number of set temperatures, and the air conditioning member There is no delay in setting the operation mode, and the operation mode can be set quickly.

Embodiment An embodiment of the mode control device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a mode control device according to the present invention, and FIG. 2 is a diagram showing how the mode control device sets an outlet mode. FIG. 3 is an operation flowchart of the mode control device of the present invention. It should be noted that, of the members shown in FIG. 1, the same members as those described in the related art are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 2, the air conditioner illustrated in the present embodiment has a first vent mode, a second vent mode, a first bilevel mode, as compared with a conventional vent mode, bilevel mode and foot mode. The second bi-level mode, the first foot mode, and the second foot mode are formed as the air outlet modes, and the air outlet modes are subdivided according to the conventional proposal so that the passengers can feel comfortable. It is an air conditioner that

As shown in FIG. 1, the mode control device of the present invention is provided with a target outlet temperature calculation unit 3 for calculating the target outlet temperature as in the conventional case.

The target outlet temperature calculation unit 3 stores air-conditioning information related to air conditioning in the vehicle interior, such as an outdoor air sensor that detects the outside air temperature, an indoor air sensor that detects the temperature inside the vehicle interior, and a solar radiation sensor that detects the amount of solar radiation incident on the vehicle interior. Various sensors 1 for detection are connected.

Further, the target outlet temperature calculation unit 3 is connected to a room temperature setting device 2 which is provided in the passenger compartment and omits the room temperature setting temperature required by the occupant when operated by the occupant.

Then, the target outlet temperature calculation unit 3 is based on the air conditioning information detected by these various sensors 1 and the room temperature set temperature output by the room temperature setter 2, and the target outlet temperature as the target temperature of the air blown into the vehicle interior. It is designed to calculate the temperature.
Note that the content of the target outlet temperature calculation unit 3 for calculating the target outlet temperature is the same as that generally performed in a conventional air conditioner for automobiles, which is a so-called full-auto air conditioner, and therefore, is described here. The description is omitted.

Then, the target outlet temperature calculation unit 3 outputs the calculated target outlet temperature to the mode setting unit 11.

The mode setting unit 11 includes a first memory 12 for storing the already set current outlet mode and a second memory 13 for storing the set temperature for setting the outlet mode as in the conventional case. It is connected.

In this mode setting unit 11, as shown in FIG.
Each mode from the first vent mode to the second foot mode is represented by a variable M of 1 to 6, and the mode setting unit 11 sets the M corresponding to the already set current outlet mode. Are stored in the first memory 12. For example, if the current outlet mode is the first foot mode, the mode setting unit 11 assigns “5” to M and stores it in the first memory 12.

Further, the second memory 13 stores set temperatures A to J corresponding to respective modes similar to the conventional one shown in FIG.

These set temperatures are divided into a set temperature TL on the low temperature side where each mode is set and a set temperature TH on the high temperature side, and are stored in the second memory 13 so as to correspond to each mode, that is, M. ing. For example, the second vent mode (M = 2)
Since TL is “A” and TH is “D”, the second memory 13 has “A” in TL corresponding to M = 2 and “D” in TH.
Are remembered respectively. That is, the second memory 13 stores the set temperatures TL and TH that specify the set ranges of the respective modes. Since TL is not set in the first vent mode, only the TH of "B" is stored in the second memory 13 as the set temperature corresponding to M = 1. Since TH is not set in the 2-foot mode, the set temperature corresponding to M = 6 is "I" in the second memory 13.
Only TL is stored.

Then, when the new target outlet temperature T is input from the target outlet temperature calculation unit 3, the mode setting unit 11 inputs the current outlet mode M stored in the first memory, and the TL corresponding to this M, Input TH from the second memory 13.

Further, the mode setting unit 11 compares these TL and TH with T to determine whether T is within the setting range set by TL and TH. As a result, when T is not within the set range, the mode setting unit 11 outputs a mode signal to the MA5 to set the outlet mode to a mode in which T is within the set range. Further, in this case, the mode setting unit 11 is configured to store the mode after the switching in the first memory 12.

On the other hand, when T is within the set range, the mode setting unit 11 does not output the mode signal in order to keep the outlet mode at the present mode.

Then, the MA 5 to which the mode signal output by the mode setting unit 11 is input operates the mode door (not shown) so as to form the outlet mode indicated by the mode signal as in the conventional case.

The mode control device of the present invention configured as described above is
It operates based on the flowchart shown in the figure.

First, the target outlet temperature calculation unit 3 calculates the target outlet temperature based on the air conditioning information and the room temperature set temperature output by the various sensors 1 and the room temperature setter 2, respectively, and the target outlet temperature is calculated by the mode setting unit.
Output to 11 (step 1).

When the mode setting unit 11 inputs this target outlet temperature, that is, the newly calculated target outlet temperature T, the first memory 12
The current mode M stored in is input (step 2).

Further, the mode setting unit 11 inputs TL and TH corresponding to the M from the second memory 13 (step 3).

Next, the mode setting unit 11 determines whether M input in step 2 is 1 and the current mode is the first vent mode in which TL is not set, and when M is 1 If so, go to Step 9 (Step 4).

Then, when M is not 1, the mode setting unit 11 determines whether T is lower than TL (step 5).

According to this judgment, when T is lower than TL, the mode setting unit 11 outputs a mode signal to the MA5 to switch the mode to the next mode in which the setting range is lower than the setting range of the current mode. Then, the mode is switched.
At the same time, the mode setting unit 11 subtracts 1 from the input M and stores it in the first memory 12 as M. That is, the switched mode is stored in the first memory 12 (step
6,7).

On the other hand, the mode setting unit 11 determines that T is TL in step 5.
When the temperature is not lower, that is, when T is equal to or higher than TL, it is determined whether M is 6 and the current mode is the second foot mode in which TH is not set ( Step 8).

Then, the mode setting unit 11 sets M to 1 in step 4.
If or if M is not 6 in step 8, it is determined whether T is higher than TH (step 9).

According to this determination, when T is higher than TH, the mode setting unit 11 outputs to the MA5 a mode signal for switching the mode to the next mode in which the setting range becomes higher than the setting range of the current mode. Then, the mode is switched.
At the same time, the mode setting unit 11 adds 1 to the input M and stores it in the first memory 12 as M. That is, the switched mode is stored in the first memory 12 (step 1
0,7).

Further, when the mode setting unit 11 determines that M is 6 in step 8 and it is not necessary to switch from the current second foot mode to another mode, or in step 9, T is not higher than TH and T Is greater than or equal to TL and less than or equal to TH, and if it is determined that there is no need to switch the current mode to another mode, M is 1 in step 4, and T is not higher than TH in step 9, When it is determined that it is not necessary to switch from the first vent mode to another mode, the mode signal is not output and the mode switching is not performed. At the same time, the mode setting unit 11 receives the input M
Is stored in the first memory 12 as it is, and the current mode is stored in the first memory 12 (steps 11 and 7).

Here, how the mode control device operates will be specifically described with reference to FIG.

For example, as shown in the figure, the current outlet mode is the first
The foot mode is set and the target outlet temperature calculation unit 3
When the newly calculated target outlet temperature is T1, the mode setting unit 11 first inputs M stored in the first memory 12. This M is "5" because the current mode is the first foot mode.

Next, the mode setting unit 11 inputs TL and TH corresponding to this M from the second memory 13. Since TL and TH are set temperatures corresponding to the first foot mode, TL is “G” and TH is “J”.

Then, since M is not 1, the mode setting unit 11 determines whether the input T1 is a temperature lower than TL, that is, "G".

Since T1 has a lower temperature than "G", the mode setting section
No. 11 judges that the newly calculated target outlet temperature is not within the setting range of the first foot mode, and since this target outlet temperature is lower than TL, it is necessary to switch to the second bi-level mode. Determine that there is.

As a result, the mode setting unit 11 outputs a mode signal for forming the second bi-level mode to the MA5 and sets the outlet mode to the second bi-level mode. At the same time, the mode setting section 11
Subtracts 1 from M that is "5" to obtain "4", stores this M in the first memory 12, and stores that the outlet mode has become the second bilevel mode.

Next, when the current outlet mode is similarly set to the first foot mode and the target outlet temperature newly calculated by the target outlet temperature calculator 3 is T2, the mode setting unit 11
Inputs M = 5 stored in the first memory 12.

Furthermore, the mode setting unit 11 uses TL = G, TH corresponding to this M.
= J is input from the second memory 13.

Since M is not 1, the mode setting unit 11 determines whether the input T2 has a temperature lower than TL = G. T2
Is higher than G and M is "5" instead of "6", the mode setting unit 11 determines whether T2 is higher than TH = J.

Since T2 is a temperature lower than TH = J, that is, T2
Is within the setting range of TL or more and TH or less, the mode setting unit 11 determines that the newly calculated target outlet temperature is within the setting range of the first foot mode.

As a result, the mode setting unit 11 determines that it is not necessary to switch the current first foot mode to another mode, does not output a mode signal, and does not switch modes. At the same time, the mode setting unit 11 keeps the input M = 5 as it is in the first memory 12
The first foot mode, which is the current mode, is stored in the first memory 12.

Similarly, when the current outlet mode is the first foot mode and the target outlet temperature newly calculated by the target outlet temperature calculator 3 is T3, the mode setting unit 11 stores the first memory 12 in the first memory 12. Enter the stored M = 5.

Next, the mode setting unit 11 sets TL = G, which corresponds to M = 5,
Input TH = J from the second memory 13.

Since M is not 1, the mode setting unit 11 determines whether the input T3 has a temperature lower than TL = G.

Since T3 is higher than G and M is "5" instead of "6", the mode setting unit 11 determines whether T3 is higher than TH = J.

Since T3 has a higher temperature than TH = J, the mode setting section
No. 11 judges that the newly calculated target outlet temperature is not within the setting range of the first foot mode, and since this target outlet temperature is higher than TH, it is necessary to switch to the second foot mode. Judge that there is.

As a result, the mode setting unit 11 outputs a mode signal for forming the second foot mode to the MA5 and sets the outlet mode to the second mode.
Set to foot mode. At the same time, the mode setting unit 11 displays "5".
1 is added to M which is “6”, and this is the first
The memory 12 stores the fact that the outlet mode has become the second foot mode.

In this way, the mode setting unit 11 sets the outlet mode only by comparing the set temperatures TL and TH corresponding to the current outlet mode with the target outlet temperature T calculated by the target outlet temperature calculator 3. can do.

Therefore, the set temperature TL, TH that the mode setting unit 11 compares with the newly input target outlet temperature T is only the set temperature TL, TH corresponding to the current outlet mode, and the number of comparisons is the set temperature TL, TH. Since it does not change regardless of the number of outlets, there is no delay in setting the outlet mode, and the outlet mode can be set more quickly than in conventional devices. As a result, the responsiveness set by the outlet mode with respect to the change in the target outlet temperature does not deteriorate, and the air conditioning of the passenger compartment can be effectively performed.

In this embodiment, the mode controller for setting the outlet mode of the air conditioner has been exemplified, but the mode controller of the present invention is not limited to this, and for example, the control of the inlet mode of the air conditioner. Of course, it can also be applied to.

Further, although the first memory 12 and the second memory 13 are illustrated as being independent of each other, they may be the same memory as a matter of course.

[Effects of the Invention] As is apparent from the above description, the present invention has the following effects.

The mode setting means can set the operation mode of the air conditioning member only by comparing the set temperature corresponding to the current operation mode with the target outlet temperature calculated by the target outlet temperature calculating means. The set temperature compared with the target outlet temperature is only the set temperature corresponding to the current operation mode, and the number of comparisons does not change regardless of the number of set temperatures. Therefore, the operation mode can be set quickly without any delay. As a result, the responsiveness of setting the operation mode with respect to the change in the target outlet temperature does not deteriorate, and the air conditioning of the vehicle interior can be effectively performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a mode control device according to the present invention, FIG. 2 is a view showing how the mode control device sets an outlet mode, and FIG. 3 is an operation flowchart of the mode control device of the present invention. , FIG. 4 and FIG. 5 are explanatory views of a conventional device. 1 ... Various sensors, 2 ... Room temperature setting device, 3 ... Target outlet temperature calculation unit (target outlet temperature calculation unit), 5 ... Mode door actuator (air conditioning member), 11 ... Mode setting unit (Mode setting unit) ), 12 ... First memory (storage means), 13 ...
... Second memory (storage means).

Claims (1)

[Scope of utility model registration request] 1. Various sensors (1) attached to various parts of a vehicle, a room temperature setting device (2) for inputting a room temperature set temperature required by an occupant, and an air conditioner in a vehicle compartment detected by the various sensors (1). A target blowout temperature calculating means (3) for calculating a target blowout temperature of air blown into the vehicle interior on the basis of the air conditioning information regarding the air conditioner and the room temperature set temperature input by the room temperature setter (2) is provided. Conditioner (5) for air conditioning
In an air conditioner for an automobile that performs air conditioning in a vehicle compartment by sequentially switching various operation modes according to the target outlet temperature, a setting that corresponds to the target outlet temperature and specifies each setting range of the various operation modes. Based on the storage means (12, 13) for storing the temperature and the already set operation mode, and the set temperature corresponding to the operation mode stored in the storage means (12, 13), the target outlet temperature When the target blowout temperature newly calculated by the calculating means (3) is not within the set range, the mode signal for switching the operation mode is output to the air conditioning member (5) and the operation mode after the switching is changed. On the other hand, the mode setting means (1) for setting the current operation mode by not switching the operation mode when stored in the storage means and within the setting range. 1) A mode control device comprising: