JP2013147117A - Automobile heating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automobile heating apparatus 1 capable of obtaining a sufficient heating effect even before starting or immediately after starting an engine 3 and capable of suppressing the new consumption of electricity, fuel, etc. for heating, in the automobile heating apparatus 1 for heating a passenger room 6 of an automobile 2.SOLUTION: An automobile heating apparatus 1 has: at least one heat accumulating material 11 disposed in the passenger room 6, at least one trigger device 12 which starts the heat radiation of the heat accumulating material 11, and heat medium circuits 4 and 13 which transmit discharged heat from an internal combustion engine 3 to the heat accumulating material 11. Upon the driving of an automobile 2, the discharged heat of the internal combustion engine 3 is accumulated in the heat accumulating material 11 via the heat medium circuits 4 and 13. Before starting or immediately after starting the internal combustion engine 3, the heat radiation of the corresponding heat accumulating material 11 is started by the actuation of the trigger device 12.

Description

  The present invention relates to an automotive heating device that mainly warms a passenger compartment of an automobile.

  The automobile has an air conditioner and a temperature control device for controlling the temperature in the passenger compartment in order to make the passenger's environment comfortable in the vehicle (see, for example, Patent Document 1). Specifically, an automobile has a heater, a ceramic heater, a gas burner, or the like that uses engine cooling water as an automotive heating device (heater) that warms the passenger compartment in winter.

  However, the conventional automotive heating device has several problems. First, a heater using engine cooling water has a problem that it is difficult to sufficiently warm the passenger compartment before or just after starting the engine in winter. This is because exhaust heat cannot be obtained from the engine.

  Second, if the engine is started a predetermined time before the start of driving of the vehicle by keyless entry or the like and exhaust heat can be obtained from the engine, the passenger compartment can be heated, but the fuel consumption deteriorates. Have the problem of This is because fuel is consumed for the purpose of obtaining exhaust heat of the engine.

  Thirdly, a heater using a ceramic heater, a gas burner, or the like has a problem that heating costs increase because external energy (electricity or fuel) is used. This is because the heating cost is required when purchasing electricity, and the fuel consumption worsens when using fuel.

JP 2011-218970 A

  The present invention has been made in view of the above problems, and an object of the present invention is to obtain a sufficient heating effect even before or just after starting an engine in an automotive heating device that warms a passenger compartment of an automobile. An object of the present invention is to provide an automotive heating apparatus that can suppress consumption of new electricity, fuel, and the like for heating purposes.

  In order to achieve the above object, an automotive heating device according to the present invention includes an automotive heating device that warms a passenger compartment of an automobile, wherein the automotive heating device includes at least one heat storage material disposed in the passenger compartment. , At least one trigger device for starting the heat dissipation of the heat storage material, and a heat medium circuit for transferring exhaust heat from an internal combustion engine to the heat storage material, wherein the heat storage material is in a supercooled state in a gel state It accumulates heat, releases latent heat by the operation of the trigger device and crystallizes, and then repeats re-heating to be gelled again and storing heat in a supercooled state. The exhaust heat of the internal combustion engine is stored in the heat storage material through a medium circuit, and heat release of the corresponding heat storage material is started by the operation of the trigger device before or immediately after the internal combustion engine is started. Characterized by being configured.

With this configuration, even when the internal combustion engine (engine) is not started or just after starting, sufficient exhaust heat cannot be obtained from the engine, the passenger compartment can be warmed and the operating environment of the passenger can be made comfortable. That is, a sufficient heating effect can be obtained. Moreover, since the heat storage to the heat storage material is performed by exhaust heat of the internal combustion engine before the operation (the day before, etc.), consumption of new electricity, fuel and the like for the purpose of heating can be suppressed. That is, an increase in heating cost can be suppressed.

  In the automotive heating device, at least one of the trigger devices is installed on a seat surface of a seat disposed in the passenger compartment, and the trigger device is activated when an external force is applied to the seat surface. The heat storage material corresponding to the heat storage material is configured to start heat dissipation.

  With this configuration, the automotive heating device can warm the cab and make the occupant's driving environment comfortable without requiring a panel operation or the like to start heating. This is because the trigger device is configured to be turned on during the ride operation of the occupant.

  In the above-described automotive heating device, at least one of the trigger devices is installed so as to be interlocked with a switch installed on an opening / closing mechanism of the door of the automobile, an opening / closing mechanism of the lock of the door, or an assist grip for getting on and off. In conjunction with the switch, the trigger device is activated to start radiating heat from the corresponding heat storage material.

  With this configuration, the same effects as described above can be obtained. This is particularly because the trigger device or the switch for operating the trigger device is configured to be turned on during the ride operation of the occupant.

  In the above-described automotive heating device, when the automotive heating device turns on the ignition of the automobile, from the heat storage material in which the trigger device does not operate and starts to radiate heat, via the heating medium circuit. And a control mechanism configured to transmit thermal energy to the internal combustion engine. With this configuration, for example, when the passenger is not in the passenger seat, the heat energy of the heat storage material installed on the passenger seat side can be used to warm up the internal combustion engine.

  According to the automotive heating device of the present invention, a sufficient heating effect can be obtained even before or just after the engine is started, and consumption of new electricity, fuel, etc. for the purpose of heating is suppressed. It is possible to provide a heating device for an automobile that can handle the above.

It is the figure which showed the outline of the heating apparatus for motor vehicles of embodiment which concerns on this invention. It is the figure which showed the outline of the thermal storage control of the heating apparatus for motor vehicles of embodiment which concerns on this invention. It is the figure which showed the outline of the thermal radiation control of the heating apparatus for motor vehicles of embodiment which concerns on this invention.

  Hereinafter, an automotive heating device 1 according to an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the outline of the motor vehicle 2 provided with the heating apparatus (henceforth a heating apparatus) 1 for vehicles and the heating apparatus 1 of embodiment which concerns on this invention is shown. The automobile 2 includes an internal combustion engine (hereinafter referred to as an engine) 3, a first heat medium circuit 4 for cooling the engine 3, an ECU (engine control unit) 5 that controls the engine, a passenger compartment 6, A heating device 1 is provided. The first heat medium circuit 4 includes a heat exchanger 7 that exchanges heat energy with a second heat medium circuit 13 described later.

  The heating device 1 includes at least one heat storage material 11 installed on the seat surface 9 of the seat 8 in the passenger compartment 6, at least one trigger device 12 for starting the heat dissipation of the heat storage material 11, and the heat storage material 11 with the engine 3. A second heat medium circuit 13 that supplies the exhaust heat of the second heat medium, and a pump 14 that controls circulation of the heat medium in the second heat medium circuit 13.

  The heating device 1 also includes a temperature sensor 15 for detecting the temperature of the seat surface 9 of the seat (seat) 8 or the passenger compartment, a signal line 10a for transmitting information of the temperature sensor 15 to the ECU 5, and a pump 14 from the ECU 5 A signal line 10b for performing the above control. Furthermore, the heating apparatus 1 has a water temperature sensor 16 for monitoring the temperature of the heat medium in the first heat medium circuit 4 and a signal line 10 c for transmitting information of the water temperature sensor 16 to the ECU 5.

  The water temperature sensor 16 may be one installed in the conventional automobile 2. The first heat medium circuit 4 and the second heat medium circuit 13 are collectively referred to as a heat medium circuit.

  Next, the heat storage material 11 will be described. The heat storage material 11 is stored in a supercooled state in a gel state, releases latent heat by the operation of the trigger device 12 and crystallizes, and then becomes a gel again by reheating and stores heat in the supercooled state. It can be repeated. Specifically, the heat storage material 11 includes at least one of sodium acetate, sodium thiosulfate, or calcium chloride.

  Here, the trigger device 12 only needs to have a configuration that triggers the release of latent heat of the heat storage material 11, and uses a known configuration such as applying mechanical or electrical stimulation to the heat storage material 11. be able to.

  Moreover, the installation place of the heat storage material 11 is not limited to the seating surface 9 of the seat 8, and can be installed in any place as long as it is in the passenger compartment 8. Specifically, the heat storage material 11 enclosed in a bag-like object or a tank can be installed on the back of the seat, the passenger compartment floor, the passenger compartment side wall, the passenger compartment ceiling, and the like. Moreover, the heat storage material 11 installed in the passenger compartment 8 is not limited to one, and can be installed in a plurality of places.

  Next, control of the automotive heating device 1 will be described. FIG. 2 shows an outline of heat storage control performed during operation of the automobile 2. This control is started when the ignition of the automobile 2 is turned on (start S10). First, the presence or absence of heat dissipation of the heat storage material 11 is detected (heater operation detection step S11). When heat dissipation of the heat storage material 11 is started, the coolant temperature of the engine 3 is measured by the water temperature sensor 16 of the first heat medium circuit 4 (step S12 on the water temperature gauge side), and the engine 3 is warmed up from this water temperature. Is determined (warming-up completion determination step S13). Specifically, it is determined that the warm-up operation is completed when the coolant temperature exceeds a predetermined temperature such as 80 ° C., for example.

  When the warm-up operation is completed, the pump 14 of the second heat medium circuit 13 is operated to supply heat energy from the first heat medium circuit 4 to the heat storage material 11 (heat storage start step S14). This is because heat energy cannot be efficiently extracted from the first heat medium circuit 4 before the warm-up operation of the engine 3 is completed. Further, when the vehicle 2 is traveling, it is desirable to let the engine 3 work in a state where the warm-up is completed. Note that after the warm-up is completed, it is necessary to actively cool the engine 3 in order to keep the temperature of the engine 3 within a predetermined range.

Thereafter, when the temperature in the passenger compartment 6 exceeds a preset temperature such as 20 ° C., for example, the heating is completed (heating completion determination step S15), the pump 14 is stopped, and the heat to the heat storage material 11 is The supply of energy is stopped (heat storage end step S16), and the heat storage control is ended (return S17). From the above, the heating device 1 repeats the above steps while the automobile is running,
Heat storage to the heat storage material 11 and heat radiation from the heat storage material 11 to the passenger compartment 6 (heating of the passenger compartment 6) can be performed simultaneously.

  FIG. 3 shows an outline of the heat dissipation control performed before the automobile 2 travels. This control is started when the ignition of the automobile 2 is turned off and a predetermined time has elapsed (start S20). For example, in the early morning of winter, first, the occupant starts getting into the automobile 2 (riding step S21). By this boarding operation, a switch installed on the seat 8, the door opening / closing mechanism of the automobile 2, the door locking opening / closing mechanism, or the assist grip for getting on / off is operated (switch operation step S22), and this switch is linked. The trigger device 12 is activated (trigger activation step S23). By the operation of the trigger device 12, heat dissipation of the heat storage material 11 is started (heat dissipation start step S24). The heat dissipation control ends with the start of this heat dissipation (return S25).

  At this time, the heat storage material 11 is in a liquid state in which heat is stored by the traveling of the automobile 2 such as the previous day and is in a supercooled state. That is, heating of the passenger compartment 6 before the engine start or immediately after the start can be performed by exhaust heat of the engine collected during the traveling of the automobile 2 such as the previous day. The heat storage material 11 is supplied with heat energy by heat storage control after the engine is started and the engine has been warmed up (see heat storage start step S14, FIG. 2).

  Here, the trigger device 12 is configured to operate via a switch, but the present invention is not limited to this configuration. That is, the trigger device can be configured to operate directly without using a switch or the like. For example, as shown in FIG. 1, when the occupant sits on the seat 8, the trigger device 12 may be directly operated to start the heat dissipation of the heat storage material 11. In addition, the trigger device can be configured to be operated by a signal such as a keyless entry through or without a switch.

  With the above-described configuration, the automotive heating device of the present invention can obtain the following effects. 1stly, even if it is a case where sufficient exhaust heat cannot be obtained from an engine immediately before starting of an engine or just after starting, a heating device for vehicles can warm a passenger compartment and can make a crew member's operating environment comfortable. . That is, a sufficient heating effect can be obtained.

  2ndly, since the heating apparatus for motor vehicles is performing the thermal storage to the thermal storage material by the exhaust heat of the engine before the driving | operation, it can suppress consumption of the new electricity, fuel, etc. for the purpose of heating. That is, an increase in heating cost can be suppressed. Here, the heat energy is supplied to the heat storage material through the heat medium circuits 4 and 13.

  Thirdly, the automotive heating device can warm the cab and make the occupant's driving environment comfortable without requiring panel operation or the like to start heating. This is because the trigger device or the switch that operates the trigger device is configured to be turned on during the ride operation of the occupant.

  In addition, you may comprise the heating apparatus for motor vehicles so that arbitrary things of several trigger apparatuses may respond | correspond with several switches. Specifically, the driver's seat side, door opening / closing mechanism, door lock opening / closing mechanism or assist grip switch and the thermal storage material trigger device installed on the driver's seat side, etc. can do. At this time, the heat storage material trigger device installed on the passenger seat or the like does not operate.

When comprised as mentioned above, the thermal energy of the heat storage material corresponding to the trigger device that has not been activated can be used for warming up the engine. Further, fuel efficiency can be improved by rapid warm-up of the engine. Specifically, for example, when the ignition of the automobile is turned on, the heat medium circuits 4 and 13 (the second heat medium circuit 13 and the first heat medium circuit) are generated from the heat storage material in which the trigger device does not operate and heat release is not started. It can be controlled to supply thermal energy to the engine via the medium circuit 4) (warm-up control). At this time, it is desirable that the second heat medium circuit is configured to supply thermal energy to the engine only from a heat storage material that has not started to dissipate heat by controlling a valve installed in advance.

  Here, the heat storage control (see FIG. 2), the heat dissipation control (see FIG. 3), and the warm-up control described above are realized by an ECU or a newly installed control mechanism installed in a conventional automobile. be able to.

  Further, it is desirable to configure the trigger device to stop operating in the summer when heating is not required. Specifically, the signal line between the trigger device and the switch can be disconnected, or heat storage control is not performed. Furthermore, the automotive heating device of the present invention can be used in combination with a heating device that has been conventionally mounted on a vehicle.

1 Automotive heating system 2 Automotive 3 Internal combustion engine
4 First heat medium circuit 6 Crew compartment 8 Seat
9 Seat surface 11 Heat storage material 12 Trigger device 13 Second heat medium circuit

Claims (4)

In an automotive heating system that warms the passenger compartment of an automobile,
The vehicle heating device includes at least one heat storage material disposed in the passenger compartment, at least one trigger device for starting the heat dissipation of the heat storage material, and a heat medium that transmits exhaust heat from an internal combustion engine to the heat storage material. Has a circuit,
The heat storage material is stored in a supercooled state while being in a gel state, releases latent heat by the operation of the trigger device, and crystallizes, and then reheats to become a gel state again and stores heat in the supercooled state. Is what
During operation of the automobile, the exhaust heat of the internal combustion engine is stored in the heat storage material through the heat medium circuit,
An automotive heating device configured to start heat dissipation of the corresponding heat storage material by the operation of the trigger device before or immediately after the internal combustion engine is started. At least one of the trigger devices is installed on a seating surface of a seat disposed in the passenger compartment;
The automotive heating device according to claim 1, wherein when an external force is applied to the seating surface, the trigger device is activated to start radiating heat from the corresponding heat storage material. At least one of the trigger devices is installed to interlock with a switch installed on an opening / closing mechanism of the door of the automobile, an opening / closing mechanism of the door lock, or an assist grip for getting on and off,
The automotive heating device according to claim 1 or 2, wherein the trigger device is operated in conjunction with the switch to start radiating heat of the corresponding heat storage material. The automotive heating device is
A control mechanism configured to transmit thermal energy to the internal combustion engine via the heating medium circuit from a heat storage material that does not start the heat dissipation because the trigger device does not operate when the ignition of the automobile is turned on. The vehicle heating device according to any one of claims 1 to 3, wherein the vehicle heating device is provided.

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