JP2009073218A - Vehicle seat air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat air conditioner capable of easily constituting the treatment content of air-conditioning. <P>SOLUTION: The vehicle seat air conditioner is provided with an air-conditioning unit 20 (seat air-conditioning means) for air-conditioning the seat; a seat air-conditioning ECU 31 for controlling the respective air-conditioning units 20; a solar battery 12 (solar power generation means) for receiving the sun light to perform power generation; a solar ECU 13 (solar control means) electric power-feedably connected to the respective seat air-conditioning ECU 31 through an electric power feeding line L1, transmitably connected through an indoor LAN 40 (indoor communication line) and feeding the electric power from the solar battery 12 to the respective seat air-conditioning ECU 31 at off of an ignition switch 14; and a door action interlocking switch 32 provided on every door of the vehicle and turned ON while interlocked with opening action of the door. The respective seat air-conditioning ECU 31 air-conditioning-controls the air-conditioning units 20 making the electric power as a drive source at OFF of the ignition switch 14 on the condition that ON of the corresponding door action interlocking switch 32 is performed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle seat air conditioner, and more particularly to a vehicle seat air conditioner capable of performing seat air conditioning for each seat when an ignition switch is turned off.

As this type of vehicle seat air conditioner, for example, as described in Patent Document 1 below, when the engine of the vehicle is stopped, based on the solar radiation direction detected by the solar radiation direction detection means, What controls the air-conditioning for every area | region is known. In the vehicle seat air conditioner described in Patent Document 1, the air conditioning capability is adjusted for each region in the passenger compartment to achieve harmony between air conditioning and power consumption.
JP 2004-291680 A

  However, in the vehicle seat air conditioner described in Patent Document 1, the CPU (control means) controls the air conditioner for each region in the vehicle interior based on the solar radiation direction detected by the solar radiation direction detecting means. It is configured. For this reason, there existed a problem that the air-conditioning process content became very complicated.

  The subject of this invention is providing the vehicle seat air conditioner which can comprise the air-conditioning process content simply.

Means for Solving the Problems and Effects of the Invention

  In order to solve the above problems, a vehicle seat air conditioner according to the present invention is provided for each vehicle seat, seat air conditioning means for air-conditioning the corresponding seat, seat air conditioning control means for controlling the seat air conditioning means, Solar power generation means for generating power by receiving sunlight, and the solar power generation means connected to the seat air-conditioning control means to be able to supply power via a power supply line and to be communicable via an in-vehicle communication line, and when the ignition switch is turned off The seat air-conditioning control means includes: solar control means for supplying electric power to the seat air-conditioning control means; and a door operation interlocking switch that is provided for each door of the vehicle and that is turned on in conjunction with the opening operation of the door. Corresponds to a door that is turned on, with the electric power as a drive source when the ignition switch is turned off, and on the condition that the door operation interlocking switch is turned on. Characterized by starting the air-conditioning control of the seat air conditioning unit.

  According to this, the power from the solar power generation means is supplied to the seat air conditioning control means by the solar control means when the ignition switch is turned off. The seat air-conditioning control means starts air-conditioning control of the seat air-conditioning means corresponding to the turned-on door on condition that the door operation interlocking switch is turned on with the electric power as a drive source when the ignition switch is turned off.

  For this reason, it is only necessary that the flow of the air-conditioning process of the seat air-conditioning unit is executed on condition that the door operation interlocking switch is turned on. Therefore, the processing content can be configured very simply.

  In addition, only the seat air-conditioning means corresponding to the door whose door operation interlocking switch is turned on is air-conditioned. For this reason, the power consumption from a solar power generation means can be suppressed favorably.

  In carrying out the present invention, each seat air conditioning control means is configured to end the air conditioning control of the seat air conditioning means when the ignition switch is not turned on within a predetermined time after starting the air conditioning control of the seat air conditioning means. Good.

  According to this, after the air conditioning control of the seat air conditioning means by each seat air conditioning control means is started, if the ignition switch is not turned on within a predetermined time, the air conditioning control of the seat air conditioning means is ended. For this reason, the electric power consumption from a solar power generation means can be suppressed much more favorably.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram schematically showing an embodiment of a vehicle seat air conditioner according to the present invention. The vehicle seat air conditioner includes a power supply switching device BS and a plurality of seat air conditioners SC. ing.

  The power supply switching device BS fulfills the function of switching the power supply of the seat air conditioner SC, and includes a main battery 11, a solar battery 12, and a solar ECU 13. The seat air conditioner SC performs a function of individually air-conditioning the seats (FR seat (driver's seat), FL seat (passenger seat), RR seat (rear right seat), RL seat (rear left seat))) in the passenger compartment. The air conditioning unit 20 (see FIG. 2) and the seat air conditioning ECU 31 are provided. The solar ECU 13 is connected to each seat air conditioning ECU 31 via the power supply line L1 so as to be able to supply power, and is connected to be communicable via an in-vehicle LAN 40 (for example, CAN) as an in-vehicle communication line.

The main battery 11 is connected to the solar ECU 13 via a power supply line L2 provided with an ignition switch 14. Solar battery 12 (solar power generation means) is connected to solar ECU 13 via power supply line L3. The solar battery 12 is connected to a solar cell 12a (for example, a power generation capacity of 1000 W / m ² ) incorporated in a part that receives sunlight, such as a sunroof, and stores electric power generated by the solar cell 12a.

  The solar ECU 13 (solar control means) has a microcomputer composed of a CPU, ROM, RAM and the like as main components, and the main processing program shown in FIG. Switching to either one of the battery 11 and the solar battery 12 is performed.

  A seat air conditioning switch 15 and an inside air sensor 16 are connected to the solar ECU 13. The seat air conditioning switch 15 outputs a switch instruction signal for operating each air conditioning unit 20 to the solar ECU 13 by the ON operation. The inside air sensor 16 detects the inside air temperature Tr in the vehicle interior and outputs a temperature signal (temperature data) to the solar ECU 13. The solar ECU 13 transmits the input switch instruction signal and temperature signal to each seat air conditioning ECU 31 via the in-vehicle LAN 40.

  Each air conditioning unit 20 includes a Peltier module 21 and a blower 22 provided in the main passage P1 in the seat, and a seat embedded in the seat portion and the seat back portion, as representatively shown in FIG. And a heater 23.

  The main passage P1 communicates with the upper space of the seat seat portion through a plurality of air guide passages P2 formed in the seat seat portion, and enters the front space of the seat back portion through the plurality of air guide passages P3 formed in the seat back portion. It communicates and communicates with the lower space of the seat through a heat dissipation passage P4 formed in the seat base.

  The Peltier module 21 has a known Peltier element, is connected to the seat air conditioning ECU 31, and the upper surface becomes a heat absorbing surface (cooling side) and the lower surface becomes a heat radiating surface in response to an ON operation of the seat air conditioning switch 15. Thus, the seat air-conditioning ECU 31 is energized and driven.

  The blower 22 is connected to the seat air conditioning ECU 31 and guides the air cooled by the Peltier module 21 to the upper surface portion of the seat seat portion through the air guide passage P2 in response to the ON operation of the seat air conditioning switch 15. The air is guided to the front portion of the seat back portion through P3, and the air heated by the Peltier module 21 is discharged to the lower side of the seat through the heat radiation passage P4.

  The seat heater 23 is a planar electric heater, is connected to the seat air conditioning ECU 31, and is energized and driven by the seat air conditioning ECU 31 in response to an ON operation of the seat air conditioning switch 15.

  Each seat air conditioning ECU 31 is connected with a door operation interlocking switch 32. The door operation interlocking switch 32 is set to be turned on (closed state) when the door is opened, and to be turned off (open state) after an extremely short time has elapsed since being turned on. The ON signal of the door operation interlocking switch 32 is output to the seat air conditioning ECU 31.

  Each seat air conditioning ECU 31 (seat air conditioning control means) includes a microcomputer including a CPU, a ROM, a RAM, and the like as main components. By executing the seat processing program of FIG. 4 stored in the ROM, the main battery 11 or Using the power of the solar battery 12 as a drive source, the Peltier module 21 and the blower 22 are energized to cool the seat seat and the seat back, or the seat heater 23 is energized to heat the seat and the seat back. To do.

  Next, the operation of the present embodiment configured as described above will be described. The solar ECU 13 repeatedly executes the main processing program of FIG. 3 stored in the ROM or the like every predetermined short time.

  The execution of the main processing program is started in step S10. When the ignition switch 14 is turned off ("No" in step S11), the power supply of the seat air conditioning ECU 31 is switched to the solar battery 12 in step S12. . On the other hand, when the ignition switch 14 is on (“Yes” in step S11), the power source of the seat air conditioning ECU 31 is switched to the main battery 11 in step S13.

  Each sheet air-conditioning ECU 31 repeatedly executes the sheet processing program of FIG. 4 stored in the ROM or the like every predetermined short time.

  The execution of each sheet processing program is started in step S20. When the vehicle is in a parked state and the occupant is away from the vehicle, it is determined as “No” in steps S21 to S23. Therefore, each seat air conditioning ECU 31 does not energize the air conditioning unit 20.

  When the occupant returns to the vehicle and opens the door, the door operation interlocking switch 32 is turned on (closed state) by opening the door. In this case, only the door operation interlocking switch 32 corresponding to the opened door is turned on, and the door operation interlocking switch 32 corresponding to the door that is not opened is kept off (open state).

  The seat air conditioning ECU 31 corresponding to the opened door receives the ON signal of the door operation interlocking switch 32, determines “Yes” in step S22, and executes the processing after step S24. In step S24, the timer starts timing.

  In step S25, based on the inside air temperature Tr in the vehicle interior by the inside air sensor 16 transmitted from the solar ECU 13 via the in-vehicle LAN 40, it is determined whether or not the inside air temperature Tr is larger than a predetermined upper limit value Tup. This upper limit value Tup is set to a temperature at which it is determined that the air conditioning unit 20 needs to cool the seat. If the internal temperature Tr is greater than the upper limit value Tup (“Yes” in step S25), the seat is cooled in step S26, that is, the Peltier module 21 and the blower 22 in the air conditioning unit 20 are energized.

  On the other hand, when the internal temperature Tr is not more than the upper limit value Tup (“No” in step S25), it is determined in step S27 whether or not the internal temperature Tr is less than a predetermined lower limit value Tlow. . This lower limit value Tlow is set to a temperature at which it is determined that heating of the sheet by the air conditioning unit 20 is necessary. If the internal temperature Tr is less than the lower limit value Tlow (“Yes” in step S27), the seat is heated in step S28, that is, the seat heater 23 in the air conditioning unit 20 is energized.

  If the inside air temperature Tr is not less than the lower limit value Tlow and not more than the upper limit value Tup (“No” in step S27), it is estimated that the comfort due to the temperature in the passenger compartment is maintained, and the air conditioning of the seat Do not do.

  Thereafter, as long as the ignition switch 14 remains off, “No” in step S21, “No” in step S22 (the door operation interlocking switch 32 is turned off after an extremely short time has elapsed since turning on), In step S23, the process of “No” is repeatedly executed, and the seat air conditioning in the mode set in step S26 or step S28 is performed. From this state, when the timer count value reaches a predetermined value (“Yes” in step S23), the seat air conditioning is stopped in step S29, that is, energization driving of the Peltier module 21 and the blower 22 in the air conditioning unit 20, or the seat heater. 23 energization drive is stopped.

  Thereafter, when the ignition switch 14 is turned on (“Yes” in step S21), seat air conditioning is performed in accordance with the operation of the seat air conditioning switch 15 (step S30).

  As is clear from the above description, in the above embodiment, the electric power from the solar battery 13 is supplied to the seat air conditioning ECU 31 when the ignition switch 14 is turned off by the execution of the processes of steps S11 and S12 by the solar ECU 13. Then, by executing the processing of steps S22, S25 to S28 by each seat ECU 31, the power is used as a drive source when the ignition switch 14 is turned off, and the door operation interlocking switch 32 is turned on, and the door is turned on. Air conditioning control of the air conditioning unit 20 is started.

  Thus, the flow of the air conditioning process of the air conditioning unit 20 may be performed on condition that the door operation interlocking switch 32 is turned on, so that the processing content can be configured very simply.

  Moreover, in the said embodiment, only the air conditioning unit 20 corresponding to the door in which the door operation | movement interlocking switch 32 was turned on is controlled by air conditioning. Thereby, the electric power consumption from the solar battery 12 can be suppressed favorably.

  Moreover, in the said embodiment, after the air-conditioning control of the air-conditioning unit 20 is started by execution of the process of step S26 or step S28 by each seat air-conditioning ECU31, when the ignition switch 14 is not turned on within a predetermined time, each seat The air conditioning control of the air conditioning unit 20 is completed by the execution of the processes of steps S23 and S29 by the air conditioning ECU 31. Thereby, the electric power consumption from the solar battery 12 can be suppressed much more favorably.

  In the above embodiment, the seat air conditioning ECU 31 is provided for each of the FR to RL seats, and the air conditioning control of the air conditioning unit 20 corresponding to the door for which the door operation interlocking switch 32 is turned on is started by each seat air conditioning ECU 31. However, the present invention is not limited to this. For example, the air conditioning control of the air conditioning unit 20 corresponding to the door whose door operation interlocking switch 32 is turned on is started only by one seat air conditioning ECU. Also good.

  In the above embodiment, the sheet is cooled when the internal temperature Tr is larger than the predetermined upper limit value Tup, and the sheet is heated when the internal temperature Tr is less than the predetermined lower limit value Tlow. Not limited to, for example, a switch instruction signal of a set temperature switch of an air conditioner that keeps the passenger compartment at a set temperature is input to each seat air conditioning ECU 31, and the seat is selected when the internal temperature Tr is higher than the set temperature at the previous setting. The sheet may be cooled and heated when the internal temperature Tr is lower than the preset temperature at the previous setting.

1 is a block diagram schematically showing a vehicle seat air conditioner according to an embodiment of the present invention. The longitudinal cross-sectional view which shows typically the air conditioning unit of FIG. The flowchart which shows the main process program performed by the solar ECU of FIG. The flowchart which shows each sheet processing program performed by each sheet | seat air-conditioning ECU of FIG.

Explanation of symbols

BS power switching device SC seat air conditioner 11 main battery 12 solar battery (solar power generation means)
12a Solar cell 13 Solar ECU (Solar control means)
14 Ignition Switch 15 Seat Air Conditioning Switch 16 Inside Air Sensor 20 Air Conditioning Unit 21 Peltier Module 22 Blower 23 Seat Heater 31 Seat Air Conditioning ECU (Seat Air Conditioning Control Unit)
32 Door operation interlocking switch 40 In-vehicle LAN (in-vehicle communication line)
L1-L3 power supply line

Claims (2)

Seat air conditioning means provided for each vehicle seat and air-conditioning the corresponding seat;
Sheet air conditioning control means for controlling the seat air conditioning means;
Solar power generation means to generate power by receiving sunlight,
The seat air-conditioning control means is connected to the seat air-conditioning control means so as to be able to supply power and communicate via an in-vehicle communication line, and supplies power from the solar power generation means to the seat air-conditioning control means when the ignition switch is turned off. Solar control means;
Provided for each door of the vehicle, provided with a door operation interlocking switch that is turned on in conjunction with the opening operation of the door,
The seat air-conditioning control means starts the air-conditioning control of the seat air-conditioning means corresponding to the door that is turned on, with the electric power as a driving source when the ignition switch is turned off, and on the condition that the door operation interlocking switch is turned on. A vehicle seat air conditioner.   2. The vehicle seat air conditioning according to claim 1, wherein the seat air conditioning control means ends the air conditioning control of the seat air conditioning means when the ignition switch is not turned on within a predetermined time after starting the air conditioning control of the seat air conditioning means. apparatus.

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