JP2023044129A - Heater control system and heater control method - Google Patents

Abstract

To enhance versatility.SOLUTION: A heater control system 100 comprises a first heater 11, a second heater 12, and a control unit 3. The first heater 11 is disposed in a first component 41 belonging to a seat 4 of a vehicle A1. The second heater 12 is disposed in a second component 42 belonging to the seat 4 of the vehicle A1. The control unit 3 is electrically connected to the first heater 11 and the second heater 12 to individually control each of the first heater 11 and the second heater 12.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present disclosure relates to a heater control system and a heater control method for controlling a heater that warms a member belonging to a seat installed in a vehicle or the like, for example.

Patent Document 1 discloses a vehicle armrest. In Patent Document 1, an armrest that supports the forearms of a seated occupant is provided with an armrest heater that heats an upper surface region that supports the forearms of the seated occupant. Further, the door trim installed on the door body of the vehicle is equipped with a door trim heater that heats the contact area where the door trim contacts the forearm. In this door trim, when the region heated by the door trim heater is defined as the first region and the region heated by the armrest heater is defined as the second region, the amount of heat generated in the first region is set larger than that of the second region.

JP 2019-38345 A

In the technique disclosed in Patent Document 1, the difference in the amount of heat generated is mechanically realized by the difference in wiring density between the two heaters, the armrest heater and the door trim heater. For this reason, in the technique disclosed in Patent Document 1, it is necessary to design a heater having a wiring density according to changes in the location where the two heaters are installed or the material of the member where the two heaters are installed. There is a problem of lack of versatility.

Accordingly, the present disclosure provides a heater control system and the like that can improve versatility.

A heater control system according to an aspect of the present disclosure includes a first heater, a second heater, and a controller. The first heater is installed on a first member belonging to a seat of a mobile body. The second heater is installed on a second member belonging to the seat of the moving body. The controller is electrically connected to the first heater and the second heater, and controls each of the first heater and the second heater individually.

A heater control method according to an aspect of the present disclosure includes: a first heater installed on a first member belonging to a seat of a moving body; a second heater installed on a second member belonging to the seat of the moving body; individually controlled.

The heater control system and the like of the present disclosure have the advantage of being able to improve versatility.

FIG. 1 is a diagram showing an outline of a heater control system according to Embodiment 1. FIG. 2 is a graph showing an example of initial control of the heater control system according to Embodiment 1. FIG. FIG. 3 is a flowchart showing an example of initial control of the heater control system according to Embodiment 1. FIG. 4 is a graph showing an example of heat retention control of the heater control system according to Embodiment 1. FIG. 5 is a flowchart showing an example of heat retention control of the heater control system according to the first embodiment. FIG. 6 is a graph showing an example of correction control of the heater control system according to Embodiment 1. FIG. FIG. 7 is a diagram showing an outline of a heater control system according to Embodiment 2. FIG. FIG. 8 is a graph showing an example of initial control of the heater control system according to the second embodiment. FIG. 9 is a flow chart showing an example of initial control of the heater control system according to the second embodiment. FIG. 10 is a graph showing an example of heat retention control of the heater control system according to the second embodiment. FIG. 11 is a flow chart showing an example of heat retention control of the heater control system according to the second embodiment.

A heater control system according to an aspect of the present disclosure includes a first heater, a second heater, and a controller. The first heater is installed on a first member belonging to a seat of a mobile body. The second heater is installed on a second member belonging to the seat of the moving body. The controller is electrically connected to the first heater and the second heater, and controls each of the first heater and the second heater individually.

According to this, by individually controlling the first heater and the second heater, even if the wiring densities of the first heater and the second heater are not different from each other, the first heater and the second heater can be controlled by simply changing the parameters in the control program. The amount of heat generated by the second heater can be individually controlled. Therefore, there is an advantage that it is not necessary to design a dedicated heater according to the installation places of the first heater and the second heater, and versatility is improved. For example, by individually controlling the calorific value of the first heater and the second heater, it is easy to reduce the temperature difference between the temperature at the location where the first heater is installed and the temperature at the location where the second heater is installed.

A heater control system according to another aspect of the present disclosure further includes a temperature detection unit installed in either one of the first heater and the second heater. The control unit controls one of the first heater and the second heater provided with the temperature detection unit based on the temperature detected by the temperature detection unit, and controls the other heater. Control is performed based on the elapsed time after the other heater has been operated.

According to this, even if only one of the first heater and the second heater is provided with the temperature detection unit, the temperature of both the first heater and the second heater can be controlled, so the configuration is simple. There is an advantage that it can be done with

In a heater control system according to another aspect of the present disclosure, the temperature detection unit is installed in a heater, of the first heater and the second heater, located near the center of the moving object.

According to this, since the temperature detection section is less likely to be affected by the temperature outside the moving body, there is an advantage that the first heater and the second heater can be easily controlled based on the temperature inside the moving body.

In a heater control system according to another aspect of the present disclosure, the controller corrects the elapsed time based on control of the one heater.

According to this, the control of the other heater, which is not provided with the temperature detection section, can be made close to the control of the one heater, which is provided with the temperature detection section, and the temperature control by the other heater can be made similar. There is an advantage that it is easy to improve the accuracy.

In the heater control system according to another aspect of the present disclosure, the controller controls the heater of the one of the first member and the second member based on the degree of change in the temperature detected by the temperature detector. determines whether or not an object is placed on the member on which is installed. The control unit does not correct the elapsed time when determining that the object is placed.

According to this, there is an advantage that it is possible to prevent the temperature control of the heater, which is not provided with the temperature detection section, from being disturbed due to the influence of the heat capacity of the object placed on the first member.

In a heater control system according to another aspect of the present disclosure, the controller PWM-controls the one heater.

According to this, it is possible to finely control the rate of temperature increase by one heater, so there is an advantage that it becomes easier to improve the comfort of the user seated on the seat.

A heater control system according to another aspect of the present disclosure further includes a first temperature detection unit installed in the first heater and a second temperature detection unit installed in the second heater. The controller controls the first heater based on the temperature detected by the first temperature detector, and controls the second heater based on the temperature detected by the second temperature detector.

According to this, compared with the case where only one of the first heater and the second heater is provided with the temperature detection unit, the advantage is that the accuracy of the temperature control of the first heater and the second heater can be improved. There is

In a heater control system according to another aspect of the present disclosure, the controller reduces the temperature difference between the temperature detected by the first temperature detector and the temperature detected by the second temperature detector. , to control the first heater and the second heater.

According to this, the temperature difference between the temperature of the first member where the first heater is installed and the temperature of the second member where the second heater is installed is reduced, so that the user sitting on the seat is comfortable. There is an advantage that it becomes easier to improve the quality.

In a heater control system according to another aspect of the present disclosure, the controller PWM-controls at least one of the first heater and the second heater.

According to this, it is possible to finely control the rate of temperature increase by at least one of the first heater and the second heater, so there is an advantage that it is easy to improve the comfort of the user seated on the seat. be.

In the heater control system according to another aspect of the present disclosure, when detecting an abnormality in either the first temperature detection unit or the second temperature detection unit, the control unit detects the temperature detection unit in which the abnormality is detected. is changed to control based on the elapsed time after the heater has been activated.

According to this, even when an abnormality occurs in either the first temperature detection unit or the second temperature detection unit, the first heater and the second heater can be continuously controlled, and redundancy can be easily secured. , has the advantage of

In a heater control system according to another aspect of the present disclosure, both the first member and the second member are armrests.

According to this, there is an advantage that the temperature of the left and right armrests (the first member and the second member) provided on the seat can be individually controlled.

In a heater control system according to another aspect of the present disclosure, each of the first heater and the second heater is divided into a wrist heater corresponding to a person's wrist and an elbow heater corresponding to the person's elbow. there is The controller individually controls the wrist heater and the elbow heater.

According to this, for example, it is possible to control so that the wrist, which tends to feel cold, becomes warmer than the elbow, and there is an advantage that it is easy to improve the comfort of the user seated on the seat.

A heater control method according to an aspect of the present disclosure includes: a first heater installed on a first member belonging to a seat of a moving body; a second heater installed on a second member belonging to the seat of the moving body; individually controlled.

According to this, by individually controlling the first heater and the second heater, even if the wiring densities of the first heater and the second heater are not different from each other, the first heater and the second heater can be controlled by simply changing the parameters in the control program. The amount of heat generated by the second heater can be individually controlled. Therefore, there is an advantage that it is not necessary to design a dedicated heater according to the installation places of the first heater and the second heater, and versatility is improved. For example, by individually controlling the calorific value of the first heater and the second heater, it is easy to reduce the temperature difference between the temperature at the location where the first heater is installed and the temperature at the location where the second heater is installed.

Hereinafter, embodiments will be specifically described with reference to the drawings.

It should be noted that the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, materials, components, installation positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples, and are not intended to limit the present disclosure. Further, among the constituent elements in the following embodiments, constituent elements not described in independent claims will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected about the same component.

(Embodiment 1)
<Configuration>
FIG. 1 is a diagram showing an outline of a heater control system 100 according to Embodiment 1. FIG. FIG. 1 shows a plan view looking down from the ceiling side (above) of the moving body A1. As shown in FIG. 1, the heater control system 100 is installed in the seat 4 of the vehicle A1. The moving object A1 is, for example, an automobile, but may be another moving object such as an airplane or a ship.

<Seat>
Seat 4 is, as an example, a rear seat of an automobile. The seat 4 may be a driver's seat or a passenger's seat of an automobile. In Embodiment 1, there are two seats 4, which are installed on the left and right sides of the rear portion of the moving object A1 so as to sandwich the console 5 therebetween. The console 5 is a member that partitions between the two seats 4 . The console 5 may have a function as an accommodation body having an accommodation space inside. The following description will focus on the left seat 4 unless otherwise specified, but the following description applies to the right seat 4 as well.

The seat 4 includes a first member 41 , a second member 42 , a seat cushion 43 and a seat back 44 . Both the first member 41 and the second member 42 are members belonging to the seat 4 of the moving body A1. Here, the member belonging to the seat 4 is defined to mean a member attached to the seat 4 or arranged in the vicinity of the seat 4 . Specifically, it corresponds to an armrest or an ottoman, which will be described later, and includes a door trim facing the seat side of the door of the moving body A1. Since the seat cushion 43 and the seat back 44 constitute the seat 4 itself, they are not members belonging to the seat 4 . In Embodiment 1, the second member 42 is arranged so as to sandwich a portion of the seat 4 between itself and the first member 41 . The seat cushion 43 is a seat portion of the seat 4 that supports the buttocks and thighs of the user sitting on the seat 4 . The seat back 44 is a backrest that supports the back of the user sitting on the seat 4 .

In Embodiment 1, both the first member 41 and the second member 42 are armrests. In the left seat 4, the first member 41 is the right armrest and the second member 42 is the left armrest. On the other hand, in the right seat 4, the first member 41 is the left armrest and the second member 42 is the right armrest. In Embodiment 1, the second member 42 is arranged in such a manner that the seat cushion 43 of the seat 4 is sandwiched between the second member 42 and the first member 41 in plan view. The first member 41 is arranged at a position close to the console 5, that is, at a position close to the center of the moving body A1. On the other hand, the second member 42 is arranged at a position close to the window A11 of the moving body A1, that is, at a position farther from the center of the moving body A1 than the first member 41 is.

Although the armrest is provided integrally with the seat 4 in Embodiment 1, the present invention is not limited to this. For example, the armrest may be separate from the seat 4, such as being provided on the console 5.

<Heater control system>
The heater control system 100 is installed on the seat 4, and when the user sits on the seat 4, the first heater 11 installed on the first member 41 and the second heater 12 installed on the second member 42 generate heat. A system for warming at least a portion of a user's body by: In Embodiment 1, the heater control system 100 warms the first member 41 and the second member 42, which are armrests, by the heat generated by the first heater 11 and the second heater 12, respectively, thereby making the hands of the user sitting on the seat 4 warm. warm up.

Although the heater control system 100 is installed in each of the left seat 4 and the right seat 4, the following description focuses on the heater control system 100 installed in the left seat 4. FIG. The following description is similarly applied to the heater control system 100 installed in the right seat 4 .

The heater control system 100 includes a first heater 11, a second heater 12, a temperature detector 2, and a controller 3, as shown in FIG. In Embodiment 1, the heater control system 100 includes the temperature detection unit 2 as a component, but may not include the temperature detection unit 2 as a component. Moreover, in Embodiment 1, the first member 41 and the second member 42 are not included in the components of the heater control system 100 , but both may be included in the components of the heater control system 100 .

The first heater 11 is a heater installed on the first member 41 . Specifically, the first heater 11 is installed in the first member 41 between a pad corresponding to a cushion material and a cover covering the pad. The first heater 11 generates heat when power is supplied from the control unit 3 and warms the user via the first member 41 .

The second heater 12 is a heater installed on the second member 42 . Specifically, the second heater 12 is installed in the second member 42 between a pad corresponding to a cushion material and a cover that covers the pad. The second heater 12 generates heat when power is supplied by the control unit 3 and heats the user via the second member 42 .

Each of the first heater 11 and the second heater 12 has a base material, a heater wire, and a sewing thread. The base material is made of a foaming resin such as cloth-like urethane formed in a sheet from a material having elasticity, flexibility and ductility. In addition, a nonwoven fabric may be sufficient as a base material. The heater wire is a conductive wire that is electrically connected to the control unit 3 and can generate heat when a current is supplied from the control unit 3 .

The heater wire is sewn to one side of the substrate from a harness for powering the heater wire through each portion of the substrate and back to the harness. The heater wire is a metal wire made of copper or the like, and is sewn onto one surface of the substrate using, for example, a polyester fiber thread as a sewing thread. The sewing thread is a thread for sewing the heater wire to the substrate along the extending direction of the heater wire in order to fix the heater wire to the substrate. The heater wire may be fixed to the base material by means other than the sewing thread, such as adhesion.

The temperature detection unit 2 is installed on either one of the first heater 11 and the second heater 12, and detects the temperature of the installation location. In Embodiment 1, the temperature detection unit 2 is installed at a position close to the first heater 11 . That is, in Embodiment 1, the temperature detection unit 2 is installed in the heater of the first heater 11 and the second heater 12 which is located near the center of the moving body A1. In Embodiment 1, the temperature detection unit 2 is a thermistor, is electrically connected to the control unit 3, and is a sensor that provides the control unit 3 with a detection result. Note that the temperature detection unit 2 may be an infrared sensor instead of the thermistor.

The controller 3 is electrically connected to the first heater 11 and the second heater 12 and controls each of the first heater 11 and the second heater 12 individually. That is, the control unit 3 controls the supply and stop of power supply to the heater wire of the first heater 11 (that is, turning on/off the first heater 11) and the supply and stop of power supply to the heater wire of the second heater 12 ( That is, on/off of the second heater 12) is controlled individually.

In the first embodiment, the control unit 3 controls one of the first heater 11 and the second heater 12 provided with the temperature detection unit 2 based on the temperature detected by the temperature detection unit 2. do. Then, the control unit 3 controls the other heater of the first heater 11 and the second heater 12, to which the temperature detection unit 2 is not installed, based on the elapsed time after the other heater has been operated. .

Here, for example, in heat retention control, the control unit 3 controls the temperature detected by the temperature detection unit 2 so that the temperature detected by the temperature detection unit 2 falls between the set temperature T1 and the set temperature T2 (<T1). Control the heater 11 (see FIG. 4).

Further, in heat retention control, for example, the control unit 3 controls the second heater 12, which is the other heater, according to the drive time P1 and the stop time P2 set according to the set temperatures T1 and T2. The drive time P1 is the time during which power is supplied to the second heater 12, that is, the ON time. The stop time P2 is a time during which power is not supplied to the second heater 12, that is, an OFF time. The driving time P1 corresponds to the elapsed time after the second heater 12 is turned on. The stop time P2 corresponds to the elapsed time after the second heater 12 is turned off.

For example, the set temperatures T1 and T2 may be directly set by the user performing a predetermined operation input to the equipment mounted on the mobile object A1, or the user may set the equipment by operating the equipment on the mobile object A1. By performing an input for setting the room temperature, the room temperature may be set indirectly according to the input. Moreover, if the difference from the set temperature T1 is a fixed value, the set temperature T2 may be set automatically by setting the set temperature T1.

<Action>
The operation of the heater control system 100 according to Embodiment 1 will be described below with reference to the drawings. Three operations of initial control, heat retention control, and correction control by the heater control system 100 will be described below. Note that the heater control system 100 does not have to perform the correction control.

<Initial control>
First, the initial control by the heater control system 100 will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a graph showing an example of initial control of the heater control system 100 according to the first embodiment. FIG. 3 is a flow chart showing an example of initial control of the heater control system 100 according to the first embodiment. In the graph shown in FIG. 2, the vertical axis represents the temperature at the location where the heater (the first heater 11 or the second heater 12) is installed, and the horizontal axis represents the elapsed time since the heater control system 100 was turned on. . In the graph shown in FIG. 2, the solid line represents the temperature at the location where the first heater 11 is installed (that is, the temperature of the first member 41), and the dashed line represents the temperature at the location where the second heater 12 is installed (that is, the temperature of the second member 42). temperature). Hereinafter, unless otherwise specified, "heater temperature" means "heater temperature".

The initial control is an operation executed by the controller 3 when, for example, the user turns on the power of the heater control system 100 . As shown in FIG. 3, the controller 3 first measures the initial temperature of the first heater 11 (step S1). In other words, the controller 3 acquires the initial temperature detected by the temperature detector 2 . The initial temperature is the temperature when the heater control system 100 is powered on. Next, the controller 3 turns on both the first heater 11 and the second heater 12 (step S2). Then, the controller 3 executes steps S3 and S4 for the first heater 11 and steps S5 and S6 for the second heater 12 . In FIG. 3, steps S5 and S6 are executed after steps S3 and S4 are executed, but steps S3 and S4 and steps S5 and S6 are executed in parallel.

As for the first heater 11, the control unit 3 keeps the first heater 11 in the ON state until the temperature of the first heater 11 detected by the temperature detection unit 2 reaches the set temperature T1 (step S3: No). to maintain Then, when the temperature of the first heater 11 detected by the temperature detection unit 2 reaches the set temperature T1 (step S3: Yes), the control unit 3 turns off the first heater 11. It shifts to heat retention control (step S4).

As for the second heater 12, the controller 3 keeps the second heater 12 turned on until the initial driving time elapses (step S5: No). Then, when the initial drive time elapses from the time when the second heater 12 is turned on (step S5: Yes), the control unit 3 turns off the second heater 12, and thereafter shifts to heat retention control for the second heater 12 (step S6).

Here, the controller 3 sets the initial drive time according to the initial temperature detected by the temperature detector 2 and the set temperature T1. Specifically, the control unit 3 stores data indicating the correspondence relationship between the combination of the initial temperature and the set temperature T1 and the initial drive time in the memory, and refers to the data to determine the initial drive time. set. In this data, the initial drive time is shorter as the initial temperature is higher, and longer as the initial temperature is lower. Also, in the data, the initial drive time is longer as the set temperature T1 is higher, and shorter as the set temperature T1 is lower.

The reason why the initial drive time is set in this way is that the degree of warming differs between the first member 41 which is the first heater 11 and the second member 42 where the second heater 12 is installed. That is, since the second member 42 is located farther from the center of the moving body A1 than the first member 41, it is easily affected by the outside air temperature of the moving body A1 through the window A11. Therefore, even if the first heater 11 and the second heater 12 have the same performance and are turned on at the same timing, when the first member 41 reaches the set temperature T1, the second member 42 is The set temperature T1 is not reached. In this case, since the temperatures of the first member 41 and the second member 42 are different, the comfort of the user seated on the seat 4 may be impaired.

Therefore, in the first embodiment, the control unit 3 takes into consideration that the degree of warming differs between the first member 41 and the second member 42, and until the initial driving time corresponding to the initial temperature and the set temperature T1 elapses, , the ON state of the second heater 12 is maintained. As a result, the temperature of the second member 42 easily reaches the set temperature T1 like the temperature of the first member 41, and the temperature difference between the first member 41 and the second member 42 can be reduced. It is easy to improve the comfort of the seated user.

As a specific example, as shown in FIG. 2, the control unit 3 sets the initial drive time to "P01" when the initial temperature is "T01", and sets the initial drive time to "P01" when the initial temperature is "T02 (<T01)". , the initial drive time is set to "P02 (>P01)". In the example shown in FIG. 2, when the initial temperature is "T01", the temperature of the first heater 11 reaches the set temperature T1 at time t1, and at time t2 after the initial drive time "P01" has passed from time 0 The temperature of the second heater 12 has also reached the set temperature T1. In the example shown in FIG. 2, when the initial temperature is "T02", the temperature of the first heater 11 reaches the set temperature T1 at time t3, and the initial drive time "P02" has passed from time 0 to time t4. At , the temperature of the second heater 12 also reaches the set temperature T1.

<Heat retention control>
Next, heat retention control by the heater control system 100 will be described with reference to FIGS. 4 and 5. FIG. FIG. 4 is a graph showing an example of heat retention control of heater control system 100 according to the first embodiment. FIG. 5 is a flowchart showing an example of heat retention control of heater control system 100 according to the first embodiment.

In the graph shown in FIG. 4A, the vertical axis represents the temperature of the first heater 11 and the horizontal axis represents time. In the graph shown in FIG. 4B, the vertical axis represents the temperature of the second heater 12 and the horizontal axis represents time. 4A and 4B, the hatched area represents the period during which the heater (first heater 11 or second heater 12) is on. The non-marked area represents the period during which the heater is off. These expressions are similarly applied to FIGS. 6 and 10 described later.

The heat retention control is an operation performed by the control unit 3 to maintain the temperature of the first heater 11 and the temperature of the second heater 12 at constant temperatures after the initial control. As shown in (a) of FIG. 5, the controller 3 repeats steps S11 to S14 in the heat retention control for the first heater 11 . That is, when the first heater 11 is in the OFF state, the temperature of the first heater 11 decreases with time. Until the temperature of the first heater 11 falls below the set temperature T2 (step S11: No), the control unit 3 keeps the first heater 11 off, and the temperature of the first heater 11 reaches the set temperature. When the temperature falls below T2 (step S11: Yes), the first heater 11 is turned on (step S12). Also, when the first heater 11 is in the ON state, the temperature of the first heater 11 rises with the lapse of time. Until the temperature of the first heater 11 exceeds the set temperature T1 (step S13: No), the controller 3 maintains the ON state of the first heater 11 so that the temperature of the first heater 11 reaches the set temperature. When it exceeds T1 (step S13: Yes), the first heater 11 is turned off (step S14).

As described above, in the heat retention control for the first heater 11, the control unit 3 sets the temperature of the first heater 11 between the set temperature T1 and the set temperature T2, as shown in FIG. 4(a). By repeating ON/OFF of the first heater 11, the temperature of the first heater 11 is maintained at a substantially constant temperature. By providing two different set temperatures T1 and T2, the set temperature T2 when the first heater 11 is in the OFF state and the set temperature T1 when the first heater 11 is in the ON state, the first heater 11 This prevents chattering when turning on/off. The temperature difference between the set temperature T1 and the set temperature T2 is, for example, 1 degree Celsius.

As shown in FIG. 5(b), the controller 3 repeats steps S21 to S24 in the heat retention control for the second heater 12. As shown in FIG. That is, when the second heater 12 is in the OFF state, the temperature of the second heater 12 decreases with time. Then, the controller 3 keeps the second heater 12 off until the stop time P2 elapses after turning off the second heater 12 (step S21: No), and turns off the second heater 12. When the stop time P2 has passed since the time point (step S21: Yes), the second heater 12 is turned on (step S22). Also, when the second heater 12 is in the ON state, the temperature of the second heater 12 rises with the lapse of time. Then, the controller 3 keeps the second heater 12 in the ON state until the drive time P1 has elapsed from when the second heater 12 is turned ON (step S23: No), and turns the second heater 12 ON. When the drive time P1 has passed since the time point (step S23: Yes), the second heater 12 is turned off (step S24).

Here, the controller 3 sets the drive time P1 and the stop time P2 according to the set temperatures T1 and T2. Specifically, the control unit 3 stores in the memory data indicating the correspondence between the combination of the set temperatures T1 and T2 and the combination of the drive time P1 and the stop time P2. , drive time P1 and stop time P2. In this data, the drive time P1 is longer as the set temperatures T1 and T2 are higher, and shorter as the set temperatures T1 and T2 are lower. Further, in the data, the stop time P2 is constant regardless of the magnitudes of the set temperatures T1 and T2, but may be changed according to the magnitudes of the set temperatures T1 and T2. The data includes, for example, a measured value of the drive time of the first heater 11 in heat retention control of the first heater 11 under an experimental environment, a measured value of the stop time of the first heater 11 under an experimental environment, and the first It is preset in consideration of the difference in warming between the heater 11 and the second heater 12 .

As described above, in the heat retention control for the second heater 12, the control unit 3 controls the drive time P1 and the stop time P2 set according to the set temperatures T1 and T2, as shown in FIG. 4(b). The on/off of the second heater 12 is repeated so as to repeat the above. As a result, the temperature of the second heater 12 is maintained at a substantially constant temperature like the temperature of the first heater 11, and the temperature difference between the first member 41 and the second member 42 can be reduced. It is easy to improve the comfort of the seated user.

<Correction control>
Next, correction control by the heater control system 100 will be described with reference to FIG. FIG. 6 is a graph showing an example of correction control of the heater control system 100 according to the first embodiment. In the graph shown in (a) of FIG. 6, the dotted line represents the transition of the temperature of the first heater 11 under the experimental environment of the heater control system 100, and the solid line represents the transition of the temperature of the first heater 11 under the actual environment of the heater control system 100. 1 shows transition of the temperature of the heater 11. FIG. In the graph shown in (b) of FIG. 6, the dotted line represents the transition of the temperature of the second heater 12 before correction, and the solid line represents the transition of the temperature of the second heater 12 after correction.

Correction control is an operation executed by the control unit 3 to correct the heat retention control for the second heater 12 . As already described, the drive time P1 and the stop time P2 in the heat retention control for the second heater 12 are set in advance based on the measured values of the drive time and stop time of the first heater 11 under the experimental environment. . However, for example, when the heater control system 100 actually operates, if the temperature inside the moving body A1 (room temperature) is higher than the temperature under the experimental environment, the heaters (first heater 11 and second heater 12) Easy to warm and hard to cool.

Therefore, as shown by the solid line in FIG. 6A, the driving time Pr1 of the first heater 11 under the actual environment is shorter than the driving time Pe1 under the experimental environment. Also, the stop time Pr2 of the first heater 11 under the actual environment is longer than the stop time Pe2 under the experimental environment. Therefore, in the heat retention control for the second heater 12, the driving time P1 and the stopping time P2 must be corrected based on the driving time Pr1 and the stopping time Pr2 of the first heater 11 under the actual environment. It may become difficult to maintain the temperature of the heater 12 at a constant temperature.

For example, as indicated by the dotted line in (b) of FIG. Deviating from the range between T1 and set temperature T2, the temperature of the second heater 12 is no longer maintained at a constant temperature.

Therefore, as correction control, the control unit 3 corrects the driving time P1 and the stop time P2 in the heat retention control for the second heater 12 based on the control of the first heater 11 . In other words, based on the control of one heater (here, the first heater 11), the control unit 3 determines the elapsed time (drive time P1 and stop time P2) is corrected. Specifically, in the heat retention control for the first heater 11, the control unit 3 reduces the driving time P1 as the driving time Pr1 under the actual environment becomes shorter than the driving time Pe1 under the experimental environment. The drive time is corrected to Pc1 (<P1). Further, in the heat retention control for the first heater 11, the control unit 3 changes the stop time P2 to the stop time Pc2 as the stop time Pr2 under the actual environment becomes longer than the stop time Pe2 under the experimental environment. (>P2).

In the correction control, the degree to which the drive time P1 and stop time P2 of the second heater 12 are increased or decreased is not the same as the degree to which the drive time and stop time of the first heater 11 are increased or decreased. This is because the heating effect of the second member 42 where the second heater 12 is installed is lower than that of the first member 41 where the first heater 11 is installed. Therefore, the correlation between the degree of increase/decrease of the drive time and the stop time of the first heater 11 and the degree of increase/decrease of the drive time P1 and the stop time P2 of the second heater 12 is obtained experimentally in advance. The degree of increase or decrease of the drive time P1 and the stop time P2 of the second heater 12 is determined based on the degree of increase or decrease of the drive time P1 and the stop time P2 of 11 . Correction is performed by determining the drive time Pc1 and the stop time Pc2 from the degree of increase or decrease in the drive time P1 and the stop time P2 of the second heater 12 thus obtained.

As described above, in the heat retention control for the second heater 12, the control unit 3 executes the correction control so that the transition of the temperature of the second heater 12 is set as indicated by the solid line in FIG. 6(b). Within the range between the temperature T1 and the set temperature T2, the temperature of the second heater 12 is easily maintained constant.

Note that, for example, when the heater control system 100 actually operates, if the temperature (room temperature) inside the moving body A1 is lower than the temperature under the experimental environment, the control unit 3 performs correction control opposite to the above. do it. That is, in the correction control, the control unit 3 should make the drive time Pc1 after correction longer than the drive time P1 before correction, and the stop time Pc2 after correction shorter than the stop time P2 before correction. .

Further, the control unit 3 does not have to perform correction control in the heat retention control for the second heater 12 and does not perform correction control in the initial control for the second heater 12 . This is because the execution time of the initial control is shorter than the execution time of the heat retention control, and is less susceptible to changes in temperature (room temperature) inside the moving body A1 due to heating or the like.

<Effect>
As described above, the heater control system 100 according to Embodiment 1 includes the first heater 11 , the second heater 12 , and the controller 3 . The first heater 11 is installed on the first member 41 belonging to the seat 4 of the moving body A1. The second heater 12 is installed on a second member 42 belonging to the seat 4 of the moving body A1. The controller 3 is electrically connected to the first heater 11 and the second heater 12 and controls each of the first heater 11 and the second heater 12 individually.

According to this, by controlling the first heater 11 and the second heater 12 individually, even if the wiring densities of the first heater 11 and the second heater 12 are not different from each other, only by changing the parameters in the control program, The amount of heat generated by the first heater 11 and the second heater 12 can be controlled individually. Therefore, there is an advantage that it is not necessary to design a dedicated heater according to the installation location of the first heater 11 and the second heater 12, and versatility is improved. For example, by individually controlling the calorific value of the first heater 11 and the second heater 12, it is easy to reduce the temperature difference between the temperature at the location where the first heater 11 is installed and the temperature at the location where the second heater 12 is installed. .

Further, the heater control system 100 according to Embodiment 1 further includes a temperature detector 2 installed in either one of the first heater 11 and the second heater 12 . The control unit 3 controls one of the first heater 11 and the second heater 12 to which the temperature detection unit 2 is installed (here, the first heater 11) based on the temperature detected by the temperature detection unit 2. , and the other heater (here, the second heater 12) is controlled based on the elapsed time after the other heater has been activated.

According to this, even if only one of the first heater 11 and the second heater 12 is provided with the temperature detection unit 2, the temperatures of both the first heater 11 and the second heater 12 can be controlled. Therefore, there is an advantage that a simple configuration is sufficient.

Further, in the heater control system 100 according to the first embodiment, the temperature detection unit 2 detects the heater (here, the first heater 11 ).

According to this, since the temperature detection unit 2 is less likely to be affected by the temperature outside the moving body A1, it is easy to control the first heater 11 and the second heater 12 based on the temperature (room temperature) inside the moving body A1. There is an advantage that

Further, in the heater control system 100 according to Embodiment 1, the control unit 3 corrects the elapsed time based on the control of one heater (here, the first heater 11).

According to this, the control of the other heater (here, the second heater 12) not provided with the temperature detection unit 2 is controlled by the one heater (here, the first heater 11) provided with the temperature detection unit 2. ) can be approached, and there is an advantage that the accuracy of temperature control by the other heater can be easily improved.

Further, in the heater control system 100 according to Embodiment 1, both the first member 41 and the second member 42 are armrests.

According to this, there is an advantage that the temperature of the left and right armrests (the first member 41 and the second member 42) provided on the seat 4 can be individually controlled.

Further, the heater control method according to Embodiment 1 includes the first heater 11 installed on the first member 41 belonging to the seat 4 of the moving body A1 and the second heater 42 installed on the second member 42 belonging to the seat 4 of the moving body A1. and the second heater 12 are individually controlled.

According to this, by controlling the first heater 11 and the second heater 12 individually, even if the wiring densities of the first heater 11 and the second heater 12 are not different from each other, only by changing the parameters in the control program, The amount of heat generated by the first heater 11 and the second heater 12 can be controlled individually. Therefore, there is an advantage that it is not necessary to design a dedicated heater according to the installation location of the first heater 11 and the second heater 12, and versatility is improved. For example, by individually controlling the calorific value of the first heater 11 and the second heater 12, it is easy to reduce the temperature difference between the temperature at the location where the first heater 11 is installed and the temperature at the location where the second heater 12 is installed. .

(Embodiment 2)
<Configuration>
FIG. 7 is a diagram showing an outline of a heater control system 100A according to the second embodiment. In the heater control system 100A according to the second embodiment, both the first heater 11 and the second heater 12 are provided with the temperature detection units (the first temperature detection unit 21 and the second temperature detection unit 22). 1 differs from the heater control system 100 in FIG.

Both the first temperature detection unit 21 and the second temperature detection unit 22 are thermistors, like the temperature detection unit 2 of the first embodiment. The first temperature detection unit 21 is installed at a position close to the first heater 11 , and the second temperature detection unit 22 is installed at a position close to the second heater 12 .

In Embodiment 2, the control unit 3 controls the first heater 11 based on the temperature detected by the first temperature detection unit 21, and controls the second heater 11 based on the temperature detected by the second temperature detection unit 22. 12 is controlled. Further, the control unit 3 controls the first heater 11 and the second heater 12 so as to reduce the temperature difference between the temperature detected by the first temperature detection unit 21 and the temperature detected by the second temperature detection unit 22. Control.

Here, the control unit 3 controls the first heater 11 so that the temperature detected by the first temperature detection unit 21 falls between the set temperature T1 and the set temperature T2 in, for example, heat retention control (Fig. 10). Similarly, the control unit 3 controls the second heater 12 so that the temperature detected by the second temperature detection unit 22 falls between the set temperature T1 and the set temperature T2 in heat retention control, for example (Fig. 10).

<Action>
The operation of the heater control system 100A according to the second embodiment will be described below with reference to the drawings. Two operations of initial control and heat retention control by the heater control system 100 will be described below.

<Initial control>
First, the initial control by the heater control system 100A will be described with reference to FIGS. 8 and 9. FIG. FIG. 8 is a graph showing an example of initial control of the heater control system 100A according to the second embodiment. FIG. 9 is a flowchart showing an example of initial control of the heater control system 100A according to the second embodiment. In the graph shown in FIG. 8, the vertical axis represents the temperature at the location where the heater (the first heater 11 or the second heater 12) is installed, and the horizontal axis represents the elapsed time since the heater control system 100A was turned on. . In the graph shown in FIG. 8, the solid line represents the temperature at the location where the first heater 11 is installed (that is, the temperature of the first member 41), and the dashed line represents the temperature at the location where the second heater 12 is installed (that is, the temperature of the second member 42). temperature).

As shown in FIG. 9, the controller 3 first turns on both the first heater 11 and the second heater 12 (step S31). The controller 3 then executes steps S32 and S33 for the first heater 11 and steps S34 and S35 for the second heater 12 . In FIG. 3, steps S34 and S35 are executed after steps S32 and S33 are executed, but steps S32 and S33 and steps S34 and S35 are executed in parallel.

Regarding the first heater 11, the control unit 3 controls the temperature of the first heater 11 until the temperature of the first heater 11 detected by the first temperature detection unit 21 reaches the set temperature T1 (step S32: No). stay on. Then, when the temperature of the first heater 11 detected by the first temperature detection unit 21 reaches the set temperature T1 (step S32: Yes), the control unit 3 turns off the first heater 11, and thereafter turns off the first heater 11. 11 shifts to heat retention control (step S33).

Regarding the second heater 12, the control unit 3 controls the temperature of the second heater 12 until the temperature of the second heater 12 detected by the second temperature detection unit 22 reaches the set temperature T1 (step S34: No). stay on. Then, when the temperature of the second heater 12 detected by the second temperature detection unit 22 reaches the set temperature T1 (step S34: Yes), the control unit 3 turns off the second heater 12. 12 shifts to heat retention control (step S35).

In Embodiment 2, the controller 3 controls the first heater 11 and the second heater 12 based on the temperatures detected by the first temperature detector 21 and the second temperature detector 22, respectively. As a result, both the temperature of the first member 41 and the temperature of the second member 42 easily reach the set temperature T1, and the temperature difference between the first member 41 and the second member 42 can be reduced. It is easy to improve the comfort of the seated user.

As a specific example, in the example shown in FIG. 8, when the initial temperature is "T01", the temperature of the first heater 11 reaches the set temperature T1 at time t1, and the temperature of the second heater 12 reaches the set temperature T1 at time t5. The set temperature T1 has been reached. In the example shown in FIG. 8, when the initial temperature is "T02", the temperature of the first heater 11 reaches the set temperature T1 at time t3, and the temperature of the second heater 12 reaches the set temperature T1 at time t6. T1 is reached.

<Heat retention control>
Next, heat retention control by the heater control system 100A will be described with reference to FIGS. 10 and 11. FIG. FIG. 10 is a graph showing an example of heat retention control of the heater control system 100A according to the second embodiment. FIG. 11 is a flowchart showing an example of heat retention control of the heater control system 100A according to the second embodiment.

As shown in (a) of FIG. 11, the controller 3 repeats steps S41 to S44 in the heat retention control for the first heater 11 . That is, when the first heater 11 is in the OFF state, the temperature of the first heater 11 decreases with time. Until the temperature of the first heater 11 falls below the set temperature T2 (step S41: No), the control unit 3 keeps the first heater 11 in the OFF state, and the temperature of the first heater 11 reaches the set temperature. If the temperature falls below T2 (step S41: Yes), the first heater 11 is turned on (step S42). Also, when the first heater 11 is in the ON state, the temperature of the first heater 11 rises with the lapse of time. Until the temperature of the first heater 11 exceeds the set temperature T1 (step S43: No), the controller 3 maintains the ON state of the first heater 11 so that the temperature of the first heater 11 reaches the set temperature. When it exceeds T1 (step S43: Yes), the first heater 11 is turned off (step S44).

As shown in (b) of FIG. 11, the control section 3 repeats steps S51 to S54 in the heat retention control for the second heater 12 . That is, when the second heater 12 is in the OFF state, the temperature of the second heater 12 decreases with time. Until the temperature of the second heater 12 falls below the set temperature T2 (step S51: No), the control unit 3 keeps the second heater 12 off, and the temperature of the second heater 12 reaches the set temperature. When it falls below T2 (step S51: Yes), the second heater 12 is turned on (step S52). Also, when the second heater 12 is in the ON state, the temperature of the second heater 12 rises with the lapse of time. Until the temperature of the second heater 12 exceeds the set temperature T1 (step S53: No), the control unit 3 keeps the second heater 12 on, and the temperature of the second heater 12 reaches the set temperature. If it exceeds T1 (step S53: Yes), the second heater 12 is turned off (step S54).

As described above, in the heat retention control for the first heater 11, the control unit 3 sets the temperature of the first heater 11 between the set temperature T1 and the set temperature T2, as shown in FIG. 10(a). By repeating ON/OFF of the first heater 11, the temperature of the first heater 11 is maintained at a substantially constant temperature. In addition, in the heat retention control for the second heater 12, the control unit 3 keeps the temperature of the second heater 12 between the set temperature T1 and the set temperature T2, as shown in FIG. 10(b). , the second heater 12 is repeatedly turned on and off to keep the temperature of the second heater 12 substantially constant. Thereby, the temperature difference between the first member 41 and the second member 42 can be reduced, and the comfort of the user seated on the seat 4 can be easily improved.

<Effect>
As described above, the heater control system 100A in Embodiment 2 further includes the first temperature detection unit 21 installed in the first heater 11 and the second temperature detection unit 22 installed in the second heater 12. Prepare. The controller 3 controls the first heater 11 based on the temperature detected by the first temperature detector 21 and controls the second heater 12 based on the temperature detected by the second temperature detector 22 .

According to this, compared with the case where only one of the first heater 11 and the second heater 12 is provided with the temperature detection unit 2, the accuracy of the temperature control of the first heater 11 and the second heater 12 can be improved. has the advantage of being able to

Further, in the heater control system 100A according to Embodiment 2, the control unit reduces the temperature difference between the temperature detected by the first temperature detection unit and the temperature detected by the second temperature detection unit. , to control the first heater and the second heater.

According to this, the temperature difference between the temperature of the first member 41 where the first heater 11 is installed and the temperature of the second member 42 where the second heater 12 is installed is reduced. There is an advantage that it becomes easier to improve the comfort of the seated user.

(Modification)
Modifications of heater control systems 100 and 100A in Embodiments 1 and 2 will be listed below.

In the heater control system 100 according to Embodiment 1, the controller 3 controls one of the heaters of the first member 41 and the second member 42 (here, , the first heater 11) may be determined whether or not an object is placed on the member (here, the first member 41). Then, when determining that the object is placed, the control unit 3 does not have to correct the elapsed time.

That is, for example, when the first member 41 is an armrest, if the user's arm is placed on the first member 41, the first member 41 is easily warmed and hard to cool under the influence of the heat capacity of the arm. If the control unit 3 executes correction control in such a state, the drive time P1 and the stop time P2 cannot be corrected correctly, and the temperature of the second heater 12 becomes lower than the set temperatures T1 and T2. temperature control may be disturbed.

Therefore, based on the temperature change pattern detected by the temperature detection unit 2 , that is, the temperature change pattern of the first heater 11 , the control unit 3 places an object (here, the user's arm) on the first member 41 . Determine whether or not it is placed. For example, in a state in which the arm is placed on the first member 41, the change in temperature rise when the first heater 11 is turned on becomes abrupt. It is possible to determine that the arm is resting. Then, the control unit 3 does not execute the correction control when the arm is placed on the first member 41, that is, corrects the elapsed time (driving time P1 and stop time P2) in the heat retention control for the second heater 12. do not.

According to this, in the heater (here, the second heater 12) in which the temperature detection unit 2 is not provided, it is affected by the heat capacity of the object (here, the user's arm) placed on the first member 41 There is an advantage that it is possible to prevent the temperature control from being disturbed.

Further, in the heater control system 100 according to Embodiment 1, the controller 3 may perform PWM (Pulse Width Modulation) control of one heater (here, the first heater 11).

According to this, it is possible to finely control the rate of temperature increase by one heater, so there is an advantage that it becomes easier to improve the comfort of the user seated on the seat 4 . For example, by PWM-controlling the first heater 11 with a relatively small duty ratio, the temperature rise of the first heater 11 is moderated, the temperature can be easily adjusted to the set temperature T1, and the user can control the temperature change. It has the advantage of being less noticeable.

Note that the heater to be PWM-controlled may be not only the first heater 11 but also the second heater 12 without the temperature detection unit 2 . In this case, the duty ratio of the drive time P1 and the duty ratio of the stop time P2 shown in (b) of FIG. The second heater 12 may be controlled to alternately repeat P2. In this case, since the temperature change of the second heater 12 becomes gentle, there is an advantage that the user is less likely to feel the temperature change.

Similarly, in the heater control system 100A according to the second embodiment, the controller 3 may PWM-control at least one of the first heater 11 and the second heater 12 .

According to this, it is possible to finely control the rate of temperature increase by at least one of the first heater 11 and the second heater 12, so that it is easy to improve the comfort of the user seated on the seat 4. There is an advantage.

Further, in the heater control system 100A according to the second embodiment, when the control unit 3 detects an abnormality in either the first temperature detection unit 21 or the second temperature detection unit 22, the temperature detection unit in which the abnormality is detected may be changed to control based on the elapsed time after the heater is activated. For example, the control unit 3 monitors the temperature output of each of the first temperature detection unit 21 and the second temperature detection unit 22 to determine whether each of the first temperature detection unit 21 and the second temperature detection unit 22 is abnormal (for example, It is possible to detect whether or not a short circuit or disconnection) has occurred. For example, when detecting an abnormality in the first temperature detection unit 21, the control unit 3 stops executing the control based on the first temperature detection unit 21 for the first heater 11, and , the control is changed to the one based on the elapsed time after the first heater 11 operates.

According to this, even when an abnormality occurs in either the first temperature detection unit 21 or the second temperature detection unit 22, the first heater 11 and the second heater 12 can be continuously controlled, and redundancy is achieved. There is an advantage that it is easy to secure

Further, in the heater control systems 100 and 100A in the first and second embodiments, each of the first heater 11 and the second heater 12 includes a wrist heater corresponding to the human wrist, an elbow heater corresponding to the human elbow, may be divided into Then, the control unit 3 may control the wrist heater and the elbow heater individually. For example, when the first heater 11 is divided into a wrist heater and an elbow heater, the control unit 3 detects the temperature of the wrist heater based on the temperature detected by the temperature detection unit 2 (or the first temperature detection unit 21). The wrist and elbow heaters are individually controlled to be higher than the temperature of the elbow heater.

According to this, for example, the wrist, which tends to feel cold, can be controlled to be warmer than the elbow, and there is an advantage that it is easy to improve the comfort of the user seated on the seat 4 .

Both the wrist heater and the elbow heater may be provided with temperature detection units, or only one of them may be provided with a temperature detection unit. In the former case, the controller 3 may control each of the wrist heater and the elbow heater based on the temperatures detected by the corresponding temperature detectors. On the other hand, in the latter case, the control unit 3 controls one heater provided with a temperature detection unit based on the temperature detected by the temperature detection unit, and controls the other heater after the other heater operates. may be controlled based on the elapsed time of At this time, the control unit 3 may perform correction control.

In Embodiments 1 and 2, the control unit 3 of the heater control system 100, 100A installed on the left seat 4 and the control unit 3 of the heater control system 100, 100A installed on the right seat 4 are separate. , but they may be integrated into one control unit 3 .

In Embodiments 1 and 2, the first member 41 and the second member 42 are both armrests, but are not limited to this. For example, the first member 41 and the second member 42 may be provided on a door trim or other member belonging to the seat 4 such as an ottoman.

Also, the first member 41 and the second member 42 do not have to be of the same kind. For example, one of the first member 41 and the second member 42 may be an armrest, and the other may be an ottoman or the like.

It should be noted that forms obtained by applying various modifications that a person skilled in the art can come up with to the above-described first and second embodiments, and arbitrarily combining the constituent elements and functions in the embodiments without departing from the scope of the present disclosure. Implementations are also included in the disclosure.

INDUSTRIAL APPLICABILITY The present disclosure can be used, for example, to control a heater that heats a member belonging to a seat installed in a vehicle or the like.

100, 100A heater control system 11 first heater 12 second heater 2 temperature detector 21 first temperature detector 22 second temperature detector 3 controller 4 seat 41 first member 42 second member 43 seat cushion 44 seat back 5 Console A1 Moving object A11 Window P01, P02 Initial drive time P1 Drive time P2 Stop time Pc1 Drive time after correction Pc2 Stop time after correction Pe1 Drive time under experimental environment Pe2 Stop time under experimental environment Pr1 Actual environment Operating time Pr2 Stopping time under actual environment T01, T02 Initial temperature T1, T2 Set temperature t1 to t6

Claims (13)

a first heater installed on a first member belonging to a seat of a moving body;
a second heater installed on a second member belonging to the seat of the moving body;
a control unit electrically connected to the first heater and the second heater and individually controlling each of the first heater and the second heater;
heater control system. Further comprising a temperature detection unit installed in one of the first heater and the second heater,
The control unit controls one of the first heater and the second heater provided with the temperature detection unit based on the temperature detected by the temperature detection unit, and controls the other heater. Control based on the elapsed time since the other heater operates,
The heater control system of claim 1. The front temperature detection unit is installed in a heater located near the center of the moving body, out of the first heater and the second heater,
3. The heater control system of claim 2. The control unit corrects the elapsed time based on the control of the one heater.
A heater control system according to claim 2 or 3. Based on the degree of temperature change detected by the temperature detection unit, the control unit determines whether an object is placed on the one of the first member and the second member on which the heater is installed. determining whether or not, and if it is determined that the object is placed, do not correct the elapsed time;
5. The heater control system of claim 4. The control unit PWM-controls the one heater,
The heater control system according to any one of claims 2-5. a first temperature detection unit installed in the first heater;
A second temperature detection unit installed in the second heater,
The control unit controls the first heater based on the temperature detected by the first temperature detection unit, and controls the second heater based on the temperature detected by the second temperature detection unit.
The heater control system of claim 1. The control unit controls the first heater and the second heater so as to reduce a temperature difference between the temperature detected by the first temperature detection unit and the temperature detected by the second temperature detection unit. ,
8. The heater control system of claim 7. The control unit PWM-controls at least one of the first heater and the second heater.
A heater control system according to claim 7 or 8. When an abnormality is detected in either the first temperature detection section or the second temperature detection section, the control section controls the heater corresponding to the temperature detection section in which the abnormality is detected so that the heater operates. Change to control based on elapsed time since
The heater control system according to any one of claims 7-9. Both the first member and the second member are armrests,
The heater control system according to any one of claims 1-10. Each of the first heater and the second heater is divided into a wrist heater corresponding to a person's wrist and an elbow heater corresponding to the person's elbow,
The control unit individually controls the wrist heater and the elbow heater.
12. The heater control system of claim 11. separately controlling a first heater installed on a first member belonging to a seat of a moving body and a second heater installed on a second member belonging to the seat of the moving body;
Heater control method.

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