Vehicle heating system

Abstract

To provide a vehicular heating apparatus capable of preventing a radiation type warming part from exhibiting unnecessary heating capacity.SOLUTION: A vehicular heating apparatus 1 comprises: a front passenger seat side radiation heater 11b; a radiation side warming control part 30a; and a get-on determination part for determining whether or not an occupant has gotten into a vehicle. When the get-on determination part has determined that an occupant has not gotten into a vehicle, the radiation side warming control part 30a reduces warming capacity of a radiation type warming part compared to when the get-on determination part has determined that an occupant has gotten into the vehicle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle heating device that heats the interior of a vehicle compartment by radiant heat. [Background technology]

[0002] Patent Document 1 discloses a vehicle heating device that heats the interior of a vehicle cabin by radiant heat. The vehicle heating device of Patent Document 1 includes a radiant heater, which is a radiant heating unit that radiates radiant heat toward the occupants. In the vehicle heating device of Patent Document 1, the radiant heater is activated automatically or by user operation when the vehicle air conditioning device that conditions the air inside the vehicle cabin heats the interior of the vehicle.

[0003] Furthermore, Patent Document 1 describes that the radiant heater may be not only a driver's seat side radiant heater that radiates radiant heat toward an occupant sitting in the driver's seat, but also a passenger seat side radiant heater that radiates radiant heat toward an occupant sitting in the passenger seat. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2019-182403 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the vehicle heating device of Patent Document 1, if a passenger-side radiant heater is provided and operated in the same way as the driver-side radiant heater, there is a possibility that the passenger-side radiant heater will exert its heating capacity even when no passenger is in the passenger seat. As a result, the passenger seat and luggage loaded on the passenger-side floor will be heated more than necessary, resulting in unnecessary energy consumption.

[0006] In view of the above, an object of the present invention is to provide a vehicle heating device that can prevent a radiant heating section from exerting unnecessary heating capacity. [Means for solving the problem]

[0007] In order to achieve the above object, the vehicle heating device according to claim 1 includes a radiation-type heating unit (11a, 11b), a radiation-side heating control unit (30a), and an entry determination unit (S104, S113, S204, S212). a heating capacity request section (41a) and an operation display section (42); Equipped with.

[0008] The radiant heating unit radiates radiant heat toward a passenger in a designated seat. The radiation-side heating control unit controls the operation of the radiant heating unit. The passenger occupancy determination unit determines whether a passenger is in the vehicle. The heating capacity request unit can request the radiant heating unit to exert its heating capacity in response to a user operation. The operation display unit displays operation information indicating that the radiant heating unit is operating.

[0009] The radiation side heating control unit reduces the heating capacity of the radiation heating unit when the occupancy determination unit determines that no occupant is on board compared to when the occupancy determination unit determines that an occupant is on board. The operation display unit displays operation information when the user is requesting that the radiant heating unit exert its heating capacity and when the radiation side heating control unit is reducing the heating capacity of the radiant heating unit.

[0010] This makes it possible to prevent the radiant heating unit from exerting unnecessary heating capacity when it is determined that no passengers are in the vehicle. 。

[0011] The symbols in parentheses for each means described in this section and in the claims are examples showing the correspondence with the specific means described in the embodiments to be described later. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a block diagram showing the overall configuration of a vehicle heating device according to a first embodiment; [Figure 2] 1 is a side view of a vehicle interior showing the arrangement of a vehicle heating device according to a first embodiment. [Figure 3] FIG. 1 is a schematic plan view of a radiant heater according to a first embodiment. [Figure 4] 4 is a flowchart showing a part of a control process of a passenger seat side radiant heating section in the vehicle heating device of the first embodiment. [Figure 5] 6 is a flowchart showing another part of the control process of the passenger seat side radiant heating section in the vehicle heating device of the first embodiment. [Figure 6] 10 is a flowchart showing a part of a control process of a passenger seat side radiant heating section in a vehicle heating device according to a second embodiment. [Figure 7] 10 is a flowchart showing another part of the control process of the passenger seat side radiant heating section in the vehicle heating device of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, several embodiments for carrying out the present invention will be described with reference to the drawings. In each embodiment, parts corresponding to matters described in the preceding embodiment will be assigned the same reference numerals, and duplicate explanations may be omitted. In each embodiment, when only a part of the configuration is described, other previously described embodiments may be applied to the other parts of the configuration. In addition to combinations of parts that are specifically specified as being combinable in each embodiment, it is also possible to partially combine embodiments even if not specified, as long as there is no particular problem with the combination.

[0014] (First embodiment) A first embodiment of a vehicle heating device 1 according to the present invention will be described using Figures 1 to 5. The vehicle heating device 1 of this embodiment is mounted on a vehicle together with a vehicle air conditioner 2. As shown in Figure 1, the vehicle heating device 1 and the vehicle air conditioner 2 have a common control device 30 and operation panel 40.

[0015] The vehicle air conditioner 2 adjusts the temperature of the air to be blown into the vehicle compartment, and conditions the air inside the vehicle compartment by blowing the temperature-adjusted air into the vehicle compartment.

[0016] The vehicle air conditioner 2 includes a refrigeration cycle device 21 and an interior air conditioning unit 22. The refrigeration cycle device 21 has a vapor compression refrigeration cycle and adjusts the temperature of the air blown into the vehicle cabin. The interior air conditioning unit 22 has an air passage switching device and a blower, and blows the air whose temperature has been adjusted by the refrigeration cycle device 21 to an appropriate location in the vehicle cabin at an appropriate air volume.

[0017] The vehicle air conditioner 2 can switch among a cooling mode, a dehumidifying and heating mode, and a heating mode as an air conditioning operation mode.

[0018] The cooling mode is an operating mode in which cooled ventilation air is blown into the vehicle cabin to cool the vehicle cabin. The dehumidifying and heating mode is an operating mode in which cooled and dehumidified ventilation air is reheated and blown into the vehicle cabin to dehumidify and heat the vehicle cabin. The heating mode is an operating mode in which heated ventilation air is blown into the vehicle cabin to heat the vehicle cabin.

[0019] The vehicle heating device 1 heats the vehicle interior by radiant heat and thermal conduction. The vehicle heating device 1 can be operated by a user's operation, regardless of the operating state of the vehicle air conditioner 2. Therefore, if the vehicle heating device 1 is operated when the vehicle air conditioner 2 is operating in heating mode, the heating effect of the vehicle air conditioner 2 can be improved.

[0020] The vehicle heating device 1 includes radiant heaters 11a and 11b, seat heaters 12a and 12b, a steering heater 13, and the like.

[0021] The radiant heaters 11a and 11b are radiant heating units that generate radiant heat to heat the interior of the vehicle. The radiant heaters 11a and 11b radiate radiant heat to a passenger seated in a designated seat, thereby providing the passenger with a feeling of warmth. The radiant heaters 11a and 11b generate radiant heat using power supplied from the control device 30.

[0022] The vehicle heating device 1 of this embodiment has a driver's side radiant heater 11a and a passenger's side radiant heater 11b as radiant heaters 11a, 11b. The driver's side radiant heater 11a radiates radiant heat toward an occupant sitting in the driver's seat 3. The passenger's side radiant heater 11b radiates radiant heat toward an occupant sitting in the passenger's seat. The control device 30 can supply power individually to the driver's side radiant heater 11a and the passenger's side radiant heater 11b.

[0023] The specific configuration of the radiant heaters 11a and 11b will be described with reference to Figures 2 and 3. Figures 2 and 3 show the driver's seat side radiant heater 11a. As shown in Figure 2, the driver's seat side radiant heater 11a is disposed on the lower surface of the instrument panel 4 on the driver's seat side. The instrument panel 4 is an interior part attached to the lower part of the windshield W at the front of the vehicle in an area extending from the driver's seat 3 side to the passenger seat side.

[0024] The driver's seat-side radiant heater 11a is disposed below the steering wheel 5 so as to be able to radiate radiant heat toward the lower side of the driver's seat. More specifically, the driver's seat-side radiant heater 11a is disposed so as to be able to radiate radiant heat toward the thighs, knees, and shins of an occupant D seated in the driver's seat in a standard posture.

[0025] The driver's seat side radiant heater 11a is formed in a substantially rectangular plate shape as shown in Fig. 3. The driver's seat side radiant heater 11a includes a substrate portion 111a, a heat generating portion 112a, and an insulating cover portion 113a.

[0026] The substrate portion 111a is formed in a plate shape that extends along the surface of the instrument panel 4. The substrate portion 111a is made of a resin that has electrical insulation properties and excellent heat resistance. A heat generating portion 112a, a driver's seat side heater temperature sensor 32a, and a driver's seat side contact sensor 33a are attached to the substrate portion 111a.

[0027] The heating element 112a generates heat when supplied with power and radiates radiant heat. The heating element 112a in this embodiment is a heating wire made of a metal such as an alloy of copper and tin (Cu-Sn), silver, tin, stainless steel, nickel, or nichrome, or an alloy containing any of these.

[0028] The heat generating portion 112a is disposed on the passenger side surface of the substrate portion 111a by vapor deposition, printing, etc. The heat generating portion 112a in this embodiment is formed in a serpentine shape, and is thereby disposed over substantially the entire area of ​​the substrate portion 111a.

[0029] The driver's seat side heater temperature sensor 32a is a driver's seat side heater temperature detection unit that detects the driver's seat side heater temperature Thd, which is the temperature of the heat generating unit 112a. In this embodiment, the temperature of the heat generating unit 112a may rise to approximately 120°C during operation. In this embodiment, a thermistor is used as the driver's seat side heater temperature sensor 32a.

[0030] The driver's seat side contact sensor 33a is a driver's seat side contact detection unit that detects that a part of the occupant's body, such as a finger, has approached the driver's seat side radiant heater 11a. In this embodiment, a capacitance sensor that detects that a part of the occupant's body has approached the radiant heaters 11a, 11b by a change in capacitance is used as the driver's seat side contact sensor 33a.

[0031] The insulating cover 113a is a protective member arranged to cover the outer surfaces of the substrate 111a, the heat generating portion 112a, the driver's seat side heater temperature sensor 32a, and the driver's seat side contact sensor 33a. The insulating cover 113a is made of a resin that has electrical insulation and excellent heat resistance. The insulating cover 113a prevents the occupant from directly touching the heat generating portion 112a, which may become hot.

[0032] Therefore, in this embodiment, the driver's seat side radiant heater 11a, the driver's seat side heater temperature sensor 32a, and the driver's seat side contact sensor 33a are integrally formed.

[0033] The passenger-side radiant heater 11b is disposed on the lower surface of the instrument panel 4 on the passenger side. The passenger-side radiant heater 11b is disposed so that it can radiate radiant heat toward the lower side of the passenger seat. More specifically, the passenger-side radiant heater 11b is disposed so that it can radiate radiant heat toward the thighs, knees, and shins of an occupant seated in a standard posture in the passenger seat. The basic configuration of the passenger-side radiant heater 11b is the same as that of the driver-side radiant heater 11a.

[0034] Therefore, in this embodiment, the passenger-seat side radiant heater 11b, the passenger-seat side heater temperature sensor 32b, and the passenger-seat side contact sensor 33b are integrally formed.

[0035] The passenger-side heater temperature sensor 32b is a passenger-side heater temperature detection unit that detects a passenger-side heat generating portion temperature Thp, which is the temperature of the heat generating portion of the passenger-side radiant heater 11b. The passenger-side contact sensor 33b is a passenger-side contact detection unit that detects when a part of the passenger's body approaches the passenger-side radiant heater 11b.

[0036] The seat heaters 12a and 12b are heat conduction type heating units that heat the surface of the seat on which the occupant sits, giving the occupant a feeling of warmth. The seat heaters 12a and 12b are arranged inside the seat on which the occupant sits. The seat heaters 12a and 12b have an electric heating wire that generates heat using power supplied from the control device 30.

[0037] The vehicle heating device 1 of this embodiment has a driver's seat heater 12a that heats the surface of the driver's seat and a passenger's seat heater 12b that heats the surface of the passenger's seat as seat heaters 12a, 12b. The control device 30 can supply power to the driver's seat heater 12a and the passenger's seat heater 12b individually.

[0038] The steering heater 13 is a heat conduction type heating unit that gives a feeling of warmth to the occupant by heating the steering wheel 5. The steering heater 13 has an electric heating wire that generates heat by power supplied from the control device 30.

[0039] The heat generation amounts of the seat heaters 12a, 12b and the steering heater 13 are smaller than the heat generation amounts of the heat generating portions of the radiant heaters 11a, 11b. Therefore, the surface temperatures of the seats heated by the seat heaters 12a, 12b and the surface temperatures of the steering wheel heated by the steering heater 13 are adjusted to temperatures (specifically, about 40°C to 50°C) lower than the heat generating portions of the radiant heaters 11a, 11b.

[0040] Next, we will explain the control device 30. The control device 30 has a microcomputer including a CPU, ROM, RAM, etc., and its peripheral circuits. The control device 30 performs various calculations and processes based on control programs stored in the ROM, and controls the operation of various control target devices connected to the output side.

[0041] 1, various controlled devices of the vehicle heating system 1 and various controlled devices of the vehicle air conditioning system 2 are connected to the output side of the control device 30 of this embodiment. In addition, other in-vehicle devices (not shown) are also connected to the output side of the control device 30.

[0042] An air conditioning control sensor 31, a driver's seat heater temperature sensor 32a, a passenger's seat heater temperature sensor 32b, a driver's seat contact sensor 33a, and a passenger's seat contact sensor 33b are connected to the input side of the control device 30. Furthermore, a driver's seat seat belt sensor 34a, a passenger's seat seat belt sensor 34b, a driver's seat door opening / closing sensor 35a, and a passenger's seat door opening / closing sensor 35b are connected to the input side of the control device 30.

[0043] The air conditioning control sensors 31 include an inside air temperature sensor, an outside air temperature sensor, and a solar radiation sensor. The inside air temperature sensor is an inside air temperature detection unit that detects the inside air temperature Tr, which is the temperature inside the vehicle cabin. The outside air temperature sensor is an outside air temperature detection unit that detects the outside air temperature Tam. The solar radiation sensor is an solar radiation amount detection unit that detects the amount of solar radiation As inside the vehicle cabin.

[0044] The driver's seat belt sensor 34a is a driver's seat belt detection unit that detects whether or not the occupant on the driver's seat is wearing a seat belt. When the driver's seat belt sensor 34a detects that the driver's seat belt is fastened, there is a high probability that an occupant is sitting in the driver's seat. Therefore, the driver's seat belt sensor 34a is a driver's seat occupancy detection unit that detects whether an occupant is sitting in the driver's seat.

[0045] The passenger seat belt sensor 34b is a passenger seat belt detection unit that detects whether or not the passenger on the passenger seat is wearing a seat belt. When the passenger seat belt sensor 34b detects that the passenger seat belt is worn, there is a high probability that a passenger is sitting in the passenger seat. Therefore, the passenger seat belt sensor 34b is a passenger seat occupancy detection unit that detects whether the passenger is sitting in the passenger seat.

[0046] The driver's door sensor 35a is a driver's door detection unit that detects the open / close state of the driver's door. The passenger's door sensor 35b is a passenger's door detection unit that detects the open / close state of the passenger's door. Detection signals from these sensors are input to the control device 30.

[0047] The control device 30 is also connected to an operation panel 40 located near the instrument panel at the front of the vehicle interior. The operation panel 40 has various operation switches 41 and an operation display unit 42. The various operation switches 41 are operated by the user. Operation signals from the various operation switches 41 are input to the control device 30.

[0048] The various operation switches 41 provided on the operation panel 40 include an air conditioner switch, an interior temperature setting switch, an air volume setting switch, an auxiliary heating switch 41a, etc. Here, the user is not limited to a passenger. For example, if the various operation switches 41 can be operated by a remote control or the like, a person who is not in the vehicle or who is not seated in a designated seat can also be the user.

[0049] The air conditioning switch is an air conditioning operation request unit of the vehicle air conditioner 2 that requests the control device 30 to operate the refrigeration cycle device 21 and cool the blown air by a user operation. The interior temperature setting switch is an interior temperature setting unit that sets the set temperature Tset in the vehicle interior by a user operation. The air volume setting switch is an air volume setting unit that sets the air volume of the blown air blown out from the interior air conditioning unit 22 by a user operation.

[0050] The auxiliary heating switch 41a is a heating capacity request unit that, when operated by the user, requests the control device 30 to enable all radiant heating units (in this embodiment, the driver's seat side radiant heater 11a and the passenger seat side radiant heater 11b) to exert their heating capacity.

[0051] More specifically, when the user operates the auxiliary heating switch 41a to turn it on (i.e., ON), the control device 30 is requested to cause the radiant heating unit to exert its heating capacity. On the other hand, when the user operates the auxiliary heating switch 41a to turn it off (i.e., OFF), the control device 30 is not requested to cause the radiant heating unit to exert its heating capacity.

[0052] Furthermore, when the auxiliary heating switch 41a in this embodiment is turned ON, it requests the control device 30 to enable all radiant heating sections to exert their heating capacity, and at the same time, it requests the control device 30 to enable all thermal conduction heating sections (in this embodiment, the driver's seat side seat heater 12a, the passenger seat side seat heater 12b, and the steering heater 13) to exert their heating capacity.

[0053] Therefore, the auxiliary heating switch 41a of this embodiment serves as a heating capacity requesting unit that serves both the radiation heating unit and the heat conduction heating unit.

[0054] Furthermore, the operational state of the auxiliary heating switch 41a in this embodiment can be switched not only by user operation but also by software using the control device 30. For example, when a predetermined condition is met, the control device 30 can change the operational state of the auxiliary heating switch 41a from ON to OFF. Furthermore, when a predetermined condition is met, the control device 30 can change the operational state of the auxiliary heating switch 41a from OFF to ON.

[0055] The operation display unit 42 is a screen that displays the operation state of the vehicle air conditioner 2, the operation state of the vehicle heating device 1, etc. More specifically, the operation display unit 42 displays information indicating the set temperature Tset, the inside air temperature Tr, and the blowing direction and air volume of the blown air as the operation state of the vehicle air conditioner 2.

[0056] Furthermore, the operation display unit 42 displays operation information indicating that the radiant heaters 11a, 11b, the seat heaters 12a, 12b, and the steering heater 13 are operating, as the operating state of the vehicle heating device 1. For example, in the operation display unit 42 of this embodiment, an "ON" mark is displayed on the screen in a position corresponding to the passenger seat side radiant heater 11b as operation information indicating that the passenger seat side radiant heater 11b is operating.

[0057] An operation signal of a start switch 51 is also input to the control device 30. The start switch 51 is a so-called ignition switch that is operated by a user to request the start and stop of the vehicle system. The start switch 51 is a system start request unit that is operated by a user to request the start of the vehicle system, and a system stop request unit that is operated by a user to request the stop of the vehicle system.

[0058] The control device 30 also has a storage unit 30m that stores the history of detection signals from various sensors and the history of operation signals from operation switches during the same trip.

[0059] Specifically, the memory unit 30m can store the history of detection signals from the driver's seat belt sensor 34a, the passenger's seat belt sensor 34b, the driver's seat door sensor 35a, the passenger's seat door sensor 35b, etc. Furthermore, the memory unit 30m can store the history of operation signals from the auxiliary heating switch 41a, etc.

[0060] For example, if the passenger door sensor 35b detects that the passenger door has been opened even once during the same trip, the memory unit 30m can store the fact that the passenger door has been opened until the end of the trip. Here, a trip can be defined as the process from when the start switch 51 is turned on (i.e., ON) to when it is opened (i.e., OFF).

[0061] The control device 30 is an integrated unit of multiple control units that control various control target devices connected to its output side. Therefore, the components (i.e., hardware and software) of the control device 30 that control the operation of each control target device become the control units that control the operation of each control target device.

[0062] For example, the component of the control device 30 that controls the operation of the radiant heaters 11a and 11b is the radiation-side heating control unit 30a, and the component of the control device 30 that controls the operation of the seat heaters 12a and 12b and the steering heater 13 is the heat conduction-side heating control unit 30b.

[0063] Next, we will explain the operation of the vehicle heating device 1 of this embodiment. The control device 30 of this embodiment controls the operation of the radiation heating unit and the thermal conduction heating unit for each specified seat using detection signals from sensors for the corresponding seat (specifically, seat belt sensors and door opening / closing sensors).

[0064] For example, when the predetermined seat is the passenger seat, the control device 30 can control the operation of the passenger seat-side radiant heater 11b and the passenger seat-side seat heater 12b using detection signals from the passenger seat-side seat belt sensor 34b and the passenger seat-side door opening / closing sensor 35b, etc. In the following, the operation of the passenger seat-side radiant heater 11b and the passenger seat-side seat heater 12b, etc. when the predetermined seat is the passenger seat will be described with reference to Figures 4 and 5.

[0065] 4 and 5 are flowcharts showing control processes executed by control device 30. The control processes shown in Fig. 4 and 5 are started when start switch 51 of the vehicle system is turned ON. Each control step shown in the flowchart of each figure is a function realization unit possessed by control device 30.

[0066] First, in step S101 of FIG. 4, an initialization process is performed. The initialization process in step S101 includes initialization of the memory unit 30m. In addition, in the initialization in step S101, some information stored at the end of the previous trip is read. For example, the operation state of the auxiliary heating switch 41a is read as information stored at the end of the previous trip.

[0067] Next, in step S102, detection signals from various sensors connected to the input side of the control device 30 and operation signals from the operation panel 40 are read. Furthermore, in step S102, information in the memory unit 30m is updated based on the detection signals from the various sensors.

[0068] Next, in step S103, it is determined whether the auxiliary heating switch 41a is ON based on the operation signal read in step S102. If it is determined in step S103 that the auxiliary heating switch 41a is ON, the process proceeds to step S104. If it is determined in step S103 that the auxiliary heating switch 41a is OFF, the process proceeds to step S115.

[0069] In step S104, it is determined whether or not the occupant is fastening the passenger seat belt based on the detection signal of the passenger seat belt sensor 34b read in step S102.

[0070] If it is determined in step S104 that the occupant is fastening the passenger seat belt, it is highly likely that an occupant is in the passenger seat, and the process proceeds to step S105. If it is determined in step S104 that the occupant is not fastening the passenger seat belt, it is highly likely that an occupant is not in the passenger seat, and the process proceeds to step S113.

[0071] Here, the passenger seat side seat belt sensor 34b is a passenger seat side seating detection unit. Therefore, step S104 forms a passenger seat side occupancy determination unit that determines that an occupant is seated in the passenger seat when the passenger seat side seating detection unit detects that an occupant is seated in the passenger seat.

[0072] In step S105, it is determined whether the passenger-seat-side heat generating portion temperature Thp read in step S102 is equal to or lower than the target lower limit temperature TLO (approximately 80° C. in this embodiment).

[0073] If it is determined in step S105 that the passenger-side heat generating part temperature Thp is equal to or lower than the target lower-limit temperature TLO, it is determined that the heating capacity of the passenger-side radiant heater 11b is insufficient, and the process proceeds to step S106. If it is determined in step S105 that the passenger-side heat generating part temperature Thp is not equal to or lower than the target lower-limit temperature TLO, it is determined that the heating capacity of the passenger-side radiant heater 11b is not insufficient, and the process proceeds to step S109.

[0074] In step S109, it is determined whether the passenger-seat-side heat-generating portion temperature Thp read in step S102 is equal to or higher than the target upper limit temperature THO (approximately 120° C. in this embodiment).

[0075] If it is determined in step S109 that the passenger-side heat generating part temperature Thp is equal to or higher than the target upper limit temperature THO, it is assumed that the heating capacity of the passenger-side radiant heater 11b is excessive, and the process proceeds to step S110. If it is determined in step S109 that the passenger-side heat generating part temperature Thp is not equal to or higher than the target upper limit temperature THO, it is assumed that the heating capacity of the passenger-side radiant heater 11b is not excessive, and the process proceeds to step S106.

[0076] In step S110, the information stored in the storage unit 30m is referenced to determine whether there is any opening / closing history indicating that the passenger door has been opened or closed at least once during the current trip.

[0077] If it is determined in step S110 that the passenger door has been opened or closed during the current trip, it is assumed that an occupant may be in the passenger seat, and the process proceeds to step S111. If it is not determined in step S110 that the passenger door has been opened during the current trip, it is assumed that an occupant may not be in the passenger seat, and the process proceeds to step S112.

[0078] Also, in step S113, the information stored in the memory unit 30m is referenced to determine whether there is a wearing history indicating that the passenger seat belt has been worn at least once during the current trip.

[0079] If it is determined in step S113 that the passenger seat belt was fastened during the current trip, it is assumed that an occupant may be in the passenger seat, and the process proceeds to step S105. If it is not determined in step S113 that the passenger seat belt was fastened during the current trip, it is assumed that an occupant may not be in the passenger seat, and the process proceeds to step S114.

[0080] Therefore, step S113, together with step S104, forms a passenger seat occupancy determination unit that determines that an occupant is seated in the passenger seat until the vehicle system is stopped after the passenger seat occupancy detection unit detects that an occupant is seated in the passenger seat at least once during the same trip.

[0081] In step S114, the information stored in memory unit 30m is referenced to determine whether there is any operation history indicating that the auxiliary heating switch 41a was operated when it was determined in step S104 that no occupant was in the passenger seat.

[0082] If it is determined in step S114 that there is an operation history of the auxiliary heating switch 41a, the process proceeds to step S105. If it is not determined in step S114 that there is an operation history of the auxiliary heating switch 41a, the process proceeds to step S110.

[0083] In step S106 shown in Fig. 5, the control device 30 supplies power to the passenger-side radiant heater 11b. This causes the passenger-side radiant heater 11b to emit radiant heat. Also in step S106, the control device 30 supplies power to the passenger-side seat heater 12b. This causes the passenger-side seat heater 12b to heat the surface of the passenger seat.

[0084] Furthermore, in step S106, a control signal is output from the control device 30 to the operation display unit 42 so as to display operation information indicating that the passenger seat side radiant heater 11b is operating, and the process proceeds to step S107.

[0085] In step S107, it is determined whether the start switch 51 is ON. If the start switch 51 is ON in step S107, the process waits for a predetermined control period to elapse and returns to step S102. If the start switch 51 is not ON in step S107, that is, if the start switch 51 is OFF, the process proceeds to step S108.

[0086] In step S108, the control device 30 changes the operation state of the auxiliary heating switch 41a to OFF, and ends the control process for the vehicle heating device 1.

[0087] Also, in step S111, the control device 30 stops supplying power to the passenger-side radiant heater 11b. As a result, the passenger-side radiant heater 11b does not emit radiant heat. Also, in step S111, the control device 30 supplies power to the passenger-side seat heater 12b. As a result, the passenger-side seat heater 12b heats the surface of the passenger seat.

[0088] Furthermore, in step S111, a control signal is output from the control device 30 to the operation display unit 42 so as to display operation information indicating that the passenger seat side radiant heater 11b is operating, and the process proceeds to step S107.

[0089] Also, in step S112, the control device 30 stops the supply of power to the passenger-side radiant heater 11b. As a result, the passenger-side radiant heater 11b does not radiate radiant heat. Also, in step S112, the control device 30 stops the supply of power to the passenger-side seat heater 12b. As a result, the passenger-side seat heater 12b does not generate heat.

[0090] Furthermore, in step S112, a control signal is output from the control device 30 to the operation display unit 42 so as to display operation information indicating that the passenger seat side radiant heater 11b is operating, and the process proceeds to step S107.

[0091] Furthermore, in step S115, the control device 30 stops the supply of power to the passenger-side radiant heater 11b. As a result, the passenger-side radiant heater 11b does not radiate radiant heat. Furthermore, in step S106, the control device 30 stops the supply of power to the passenger-side seat heater 12b. As a result, the passenger-side seat heater 12b does not generate heat.

[0092] Furthermore, in step S112, a control signal is output from the control device 30 to the operation display unit 42 so as not to display the operation information indicating that the passenger seat side radiant heater 11b is operating, and the process proceeds to step S107.

[0093] 4, the control device 30 of this embodiment also performs protection control to improve the safety of the vehicle heating device 1. In the protection control, when the passenger-side contact sensor 33b detects that a part of the body of an occupant has approached the passenger-side radiant heater 11b, the control device 30 stops supplying power to the passenger-side radiant heater 11b until a predetermined time has elapsed.

[0094] The vehicle heating device 1 of this embodiment operates as described above, and therefore the passenger seat side radiant heater 11b can exhibit an appropriate heating capacity.

[0095] More specifically, in the vehicle heating device 1 of this embodiment, when it is determined in step S104, which is the passenger seat occupancy determination unit, that an occupant is in the passenger seat, the power supplied to the passenger seat side radiant heater 11b is controlled so that the passenger seat side heat generating portion temperature Thp is within an appropriate temperature range, as described in steps S105, S106, S109 to S112, etc.

[0096] More specifically, the power supplied to the passenger-side radiant heater 11b is controlled so that the passenger-side heat generating portion temperature Thp falls within an appropriate temperature range determined by the target lower limit temperature TLO and the target upper limit temperature THO. Therefore, when it is determined in step S104 that an occupant is present in the passenger seat, the heating capacity of the passenger-side radiant heater 11b is appropriately adjusted.

[0097] Furthermore, in the vehicle heating device 1 of this embodiment, when it is determined in step S104 that there is no passenger in the passenger seat, the supply of power to the passenger-side radiant heater 11b can be stopped, as described in steps S110 to S112, etc. In other words, the operating rate of the passenger-side radiant heater 11b can be reduced, and the heating capacity can be reduced, compared to when it is determined that there is a passenger in the passenger seat.

[0098] Therefore, when it is determined that there is no passenger in the passenger seat, the passenger-side radiant heater 11b can be prevented from exerting unnecessary heating capacity. Furthermore, deterioration of the passenger seat can be suppressed. Furthermore, when a passenger in the driver's seat loads luggage that should be kept at a temperature lower than room temperature on the passenger seat or the floor on the passenger side, deterioration of the luggage can be suppressed.

[0099] Generally, the frequency with which an occupant sits in the passenger seat is lower than the frequency with which an occupant sits in the driver's seat. Therefore, as explained above with reference to Figures 4 and 5, when it is determined that a specific seat is the passenger seat and no occupant is sitting in the passenger seat, reducing the heating capacity of the passenger-side radiant heater 11b is effective in reducing unnecessary energy consumption.

[0100] Furthermore, the vehicle heating device 1 of this embodiment employs the passenger seat belt sensor 34b as the passenger seat occupancy detection unit. In step S104, it is determined whether or not an occupant is seated in the passenger seat based on the detection signal of the passenger seat belt sensor 34b. This allows the passenger seat occupancy determination unit to accurately determine whether or not an occupant is seated in the passenger seat.

[0101] Furthermore, as explained in step S113, which is the passenger seat occupancy determination unit, in the vehicle heating device 1 of this embodiment, if the passenger seat occupancy detection unit detects that an occupant is seated in the passenger seat even once, it is determined that an occupant is seated in the passenger seat until the vehicle system is stopped. This makes it possible to avoid a decrease in heating capacity when the passenger on the passenger seat unbuckles their seat belt to take a temporary break, reseat, etc.

[0102] In addition, in the vehicle heating device 1 of this embodiment, as described in steps S111 and S112, even when the heating capacity of the passenger seat side radiant heater 11b is reduced, the auxiliary heating switch 41a is ON When the heater 11b is in the ON state, the operation display unit 42 displays operation information indicating that the passenger-side radiant heater 11b is operating. This makes it less likely that the occupant will feel uncomfortable even if the control device 30 reduces the heating capacity of the passenger-side radiant heater 11b.

[0103] Furthermore, in the vehicle heating device 1 of this embodiment, as explained in step S114, when it is determined in steps S104 and S103 that no occupant is in the passenger seat and the auxiliary heating switch 41a is not operated, the heating capacity of the passenger side radiant heater 11b is reduced.

[0104] In other words, in the vehicle heating device 1 of this embodiment, even after it is determined that no occupant is in the passenger seat, when the auxiliary heating switch 41a is operated, the occupant's operation is given priority, and the passenger-side radiant heater 11b can be made to demonstrate its heating capacity. This allows for a warming effect to be achieved when an occupant in the driver's seat loads luggage that should be kept at a temperature higher than room temperature on the passenger seat or the passenger-side floor.

[0105] Furthermore, in the vehicle heating device 1 of this embodiment, as explained in steps S107 and S108, when the start switch 51 is turned OFF, the control device 30 changes the operation state of the auxiliary heating switch 41a to OFF. In other words, when a request to stop the vehicle system is made, the operation state of the auxiliary heating switch 41a is changed to a state that does not request the radiant heating unit and the thermal conduction heating unit to exert their heating capacity.

[0106] This prevents the radiant heating unit and the thermal conduction heating unit from exerting their heating capacity until the user turns on the auxiliary heating switch 41a after the next trip starts (i.e., after the start switch 51 is next turned on). This further prevents unnecessary heating capacity from being exerted and improves safety.

[0107] In addition, in the vehicle heating device 1 of this embodiment, by turning on the auxiliary heating switch 41a, the control device 30 is requested to cause the radiation heating section to exert its heating capacity, and at the same time, to cause the heat conduction heating section to exert its heating capacity.

[0108] This allows the heat conduction heating unit to operate even if the control device 30 reduces the heating capacity of the radiation heating unit. Therefore, even if the control device 30 reduces the heating capacity of the radiation heating unit while an occupant is seated, the occupant is unlikely to feel a lack of warmth. Furthermore, because the heat generation amount of the heat conduction heating unit is set to a value lower than that of the heat generation units of the radiation heaters 11a and 11b, unnecessary heating capacity can be prevented from being exerted.

[0109] Furthermore, in the vehicle heating device 1 of this embodiment, as described in steps S110 and S111, if it is determined that the passenger door has been opened or closed during the current trip, the control device 30 supplies power to the passenger seat seat heater 12b.

[0110] If it is determined that the passenger door was opened or closed during the current trip, there is a possibility that an occupant is sitting in the passenger seat. Therefore, even if the control device 30 reduces the heating capacity of the passenger seat radiant heater 11b, the passenger seat seat heater 12b continues to generate heat, thereby improving the occupant's sense of warmth.

[0111] As described above, in the examples shown in FIGS. 4 and 5, the predetermined seat is the passenger seat, but the same control may be performed with the predetermined seat being the driver's seat.

[0112] When the predetermined seat is the driver's seat, the operation of the driver's seat side radiant heater 11a and the driver's seat side seat heater 12a can be controlled in the same manner as the control processes shown in Figures 4 and 5 using detection signals from the driver's seat side seat belt sensor 34a and the driver's seat side door opening / closing sensor 35a. The steering heater 13 can be controlled in the same manner as the driver's seat side seat heater 12a.

[0113] For example, in step S104, it is determined whether or not an occupant is fastening the driver's seat belt based on the detection signal from the driver's seat belt sensor 34a read in step S102. As a result, step S104 becomes a driver's seat occupancy determination unit that determines that an occupant is in the driver's seat when the driver's seat occupancy detection unit detects that an occupant is seated in the driver's seat.

[0114] For example, in step S105, it is determined whether the driver's seat side heat generating part temperature Thd is equal to or lower than the target lower limit temperature TLO. For example, in step S108, it is determined whether the driver's seat side heat generating part temperature Thd is equal to or higher than the target upper limit temperature THO.

[0115] For example, in step S110, it is sufficient to refer to the information stored in the memory unit 30m to determine whether there is an opening / closing history indicating that the driver's door has been opened or closed at least once during the current trip.For example, in step S113, it is sufficient to refer to the information stored in the memory unit 30m to determine whether there is an wearing history indicating that the driver's seat belt has been worn at least once during the current trip.

[0116] For example, in steps S106, S111, and S112, the control device 30 controls the operation of the driver's side radiant heater 11a, the driver's side seat heater 12a, and the steering heater 13, and outputs a control signal regarding the operation information of the driver's side radiant heater 11a to the operation display unit 42.

[0117] (Second embodiment) In this embodiment, an example will be described in which the seat heaters 12a, 12b and the steering heater 13, which are thermal conduction type heating units, are eliminated from the vehicle heating device 1 of the first embodiment, and the control process of the vehicle heating device 1 is changed. In this embodiment, too, the operation of the vehicle heating device 1 when the specified seat is the passenger seat will be described using Figures 6 and 7.

[0118] 6, an initialization process is performed similarly to step S101 in the first embodiment. Next, in step S202, similarly to step S102 in the first embodiment, the detection signal and the operation signal are read, and the information in the storage unit 30m is updated.

[0119] Next, in step S203, it is determined whether the auxiliary heating switch 41a is ON based on the operation signal read in step S202. If it is determined in step S203 that the auxiliary heating switch 41a is ON, the process proceeds to step S204. If it is determined in step S203 that the auxiliary heating switch 41a is OFF, the process proceeds to step S214.

[0120] In step S204, it is determined whether or not the occupant is fastening the passenger seat belt based on the detection signal of the passenger seat belt sensor 34b read in step S202. Step S204 forms a passenger seat occupancy determination unit similar to step S104 in the first embodiment.

[0121] If it is determined in step S204 that the occupant is wearing the passenger seat belt, it is highly likely that an occupant is in the passenger seat, and the process proceeds to step S205. If it is determined in step S204 that the occupant is not wearing the passenger seat belt, it is highly likely that an occupant is not in the passenger seat, and the process proceeds to step S210.

[0122] In step S205, the target upper limit temperature THO is set to the maximum temperature (specifically, 120° C.) of the heat generating portion of the passenger seat side radiant heater 11b, and the process proceeds to step S206.

[0123] In step S206, similarly to step S105 in the first embodiment, it is determined whether the passenger-seat-side heating part temperature Thp read in step S202 is equal to or lower than the target lower limit temperature TLO.

[0124] If it is determined in step S206 that the passenger-side heat generating part temperature Thp is equal to or lower than the target lower-limit temperature TLO, it is determined that the heating capacity of the passenger-side radiant heater 11b is insufficient, and the process proceeds to step S207. If it is determined in step S206 that the passenger-side heat generating part temperature Thp is not equal to or lower than the target lower-limit temperature TLO, it is determined that the heating capacity of the passenger-side radiant heater 11b is sufficient, and the process proceeds to step S210.

[0125] In step S210, similarly to step S109 in the first embodiment, it is determined whether the passenger-seat-side heat-generating part temperature Thp read in step S202 is equal to or higher than the target upper limit temperature THO.

[0126] If it is determined in step S210 that the passenger-side heat generating part temperature Thp is equal to or higher than the target upper limit temperature THO, it is assumed that the heating capacity of the passenger-side radiant heater 11b is excessive, and the process proceeds to step S211. If it is determined in step S210 that the passenger-side heat generating part temperature Thp is not equal to or higher than the target upper limit temperature THO, it is assumed that the heating capacity of the passenger-side radiant heater 11b is not excessive, and the process proceeds to step S207.

[0127] In step S212, similar to step S113 in the first embodiment, the information stored in the memory unit 30m is referenced to determine whether there is a history of the passenger seat belt being fastened at least once during the current trip. Step S212, together with step S204, constitutes a passenger seat occupancy determination unit similar to step S113 in the first embodiment.

[0128] If it is determined in step S212 that the passenger seat belt was fastened during the current trip, it is assumed that an occupant may be in the passenger seat, and the process proceeds to step S205. If it is not determined in step S212 that the passenger seat belt was fastened during the current trip, it is assumed that an occupant may not be in the passenger seat, and the process proceeds to step S213.

[0129] In step S213, the target upper limit temperature THO is set to a temperature lower than that in step S205 (specifically, 100° C.), and the process proceeds to step S206.

[0130] 7, the control device 30 supplies power to the passenger-side radiant heater 11b. This causes the passenger-side radiant heater 11b to emit radiant heat. Furthermore, in step S207, the control device 30 outputs a control signal to the operation display unit 42 to display operation information indicating that the passenger-side radiant heater 11b is operating, and the process proceeds to step S208.

[0131] In step S208, similarly to step S107 in the first embodiment, it is determined whether the start switch 51 is ON. If the start switch 51 is ON in step S208, the process waits for a predetermined control period to elapse and returns to step S202. If the start switch 51 is not ON in step S208, that is, if the start switch 51 is OFF, the process proceeds to step S209.

[0132] In step S209, the control device 30 changes the operation state of the auxiliary heating switch 41a to OFF, and ends the control process for the vehicle heating device 1.

[0133] In step S211, the control device 30 stops the supply of power to the passenger-side radiant heater 11b. As a result, the passenger-side radiant heater 11b does not emit radiant heat. Furthermore, in step S211, the control device 30 outputs a control signal to the operation display unit 42 to display operation information indicating that the passenger-side radiant heater 11b is operating, and the process proceeds to step S208.

[0134] Also, in step S214, the control device 30 stops the supply of power to the passenger-side radiant heater 11b. As a result, the passenger-side radiant heater 11b does not emit radiant heat. Furthermore, in step S214, a control signal is output from the control device 30 to the operation display unit 42 so as not to display operation information indicating that the passenger-side radiant heater 11b is operating, and the process proceeds to step S208.

[0135] Other operations are the same as those in Embodiment 1. Therefore, in the vehicle heating device 1 of this embodiment, as in the first embodiment, the passenger seat side radiant heater 11b can be made to exhibit an appropriate heating capacity.

[0136] More specifically, in the vehicle heating device 1 of this embodiment, when it is determined in step S204 that there is no passenger in the passenger seat, the target upper limit temperature THO can be reduced as described in steps S205 to S213, etc. In other words, the target upper limit temperature THO of the passenger-side radiant heater 11b can be reduced to a lower value than when it is determined that there is a passenger in the passenger seat, thereby reducing the heating capacity.

[0137] Therefore, when it is determined that no passenger is seated in the passenger seat, it is possible to prevent the passenger seat side radiant heater 11b from exerting unnecessary heating capacity.

[0138] As described above, in Figures 6 and 7, an example has been described in which the predetermined seat is the passenger seat, but similar control may be performed with the predetermined seat being the driver's seat. When the predetermined seat is the driver's seat, the operation of the driver's seat-side radiant heater 11a may be controlled in the same manner as the control process shown in Figures 6 and 7, using detection signals from the driver's seat-side seat belt sensor 34a and the driver's seat-side door opening / closing sensor 35a, etc.

[0139] (Other embodiments) The present invention is not limited to the above-described embodiments, and various modifications can be made as follows without departing from the spirit of the present invention. Furthermore, the means disclosed in each of the above-described embodiments may be combined as appropriate within the scope of feasibility.

[0140] (1) In the above embodiment, the vehicle heating device 1 has the driver's seat side radiant heater 11a and the passenger's seat side radiant heater 11b as the radiant heaters, but is not limited to this.

[0141] For example, the radiant heater may be a rear seat radiant heater. The rear seat radiant heater may be disposed on the back of the front seat. In this case, a corresponding rear seat seat belt sensor and a door open / close sensor may be provided, and the detection signals from these sensors may be used to control the rear seat radiant heater.

[0142] (2) In the above embodiment, an example was described in which an occupancy determination unit was used that determines that an occupant is seated after the occupancy detection unit detects that an occupant is seated until the vehicle system stops, but this is not limited to this.

[0143] For example, steps S104 and S113 described in the first embodiment and steps S204 and S212 described in the second embodiment may be used to form an occupancy determination unit that determines that an occupant is in the vehicle until a predetermined reference time has elapsed after the occupancy detection unit detects that an occupant is seated.

[0144] In this case, the storage unit 30m may be configured to store the history of detection signals from the various sensors and the history of operation signals from the operation switches until a predetermined reference time has elapsed. This reduces the storage capacity of the storage unit 30m. Alternatively, the storage unit 30m may be configured to use a storage unit located outside the vehicle that utilizes a cloud service or the like.

[0145] (3) In the above embodiment, the seat belt sensors 34a and 34b are used as the seat occupancy detectors, but this is not limiting. It is desirable that the seat occupancy detectors be able to detect with a high degree of probability that an occupant is present. Therefore, the seat occupancy detectors may be a load sensor that detects whether an occupant is present based on the load applied to the seat, or an image analyzer that detects whether an occupant is present based on a camera image of the seat.

[0146] (4) In the above embodiment, the controller 30 changes the operational state of the auxiliary heating switch 41a to OFF when the start switch 51 is turned OFF. However, the present invention is not limited to this. For example, when the start switch 51, which also serves as a system startup request unit, is turned ON, the controller 30 may change the operational state of the auxiliary heating switch 41a to OFF in the initialization process of steps S101 and S201.

[0147] (5) In the above embodiment, an example was described in which the heating capacity request unit uses the auxiliary heating switch 41a, which requests the control device 30 to turn on or off to determine whether or not to activate the radiant heating unit. However, this is not limited to this. Furthermore, the auxiliary heating switch 41a may be capable of adjusting the heating capacity of the radiant heating unit. For example, each time the auxiliary heating switch 41a is pressed, it may be possible to switch between high heating capacity, low heating capacity, and OFF in sequence.

[0148] In the above embodiment, the radiant heaters 11a and 11b, the seat heaters 12a and 12b, and the steering heater 13 are activated when the auxiliary heating switch 41a is turned on by a user operation, but this is not limiting. For example, when the vehicle air conditioner 2 is switched to operate in the heating mode, the control device 30 may change the operation state of the auxiliary heating switch 41a to ON regardless of a user operation.

[0149] (6) In the above embodiment, no detailed configuration of the refrigeration cycle device 21 of the vehicle air conditioner 2 is mentioned, but various types of the refrigeration cycle device 21 can be adopted. The refrigeration cycle device 21 may have a heat medium circuit that circulates a heat medium that exchanges heat with the blown air. The refrigeration cycle device 21 and the heat medium circuit may be configured so that their circuit configurations can be switched when the vehicle air conditioner 2 switches between air conditioning operation modes.

[0150] (7) In the above embodiment, the control device 30 is described as a single control device as shown in FIG. 1. However, the control device 30 may be a control system formed by combining multiple control devices. In the control system, the multiple control devices are connected to each other so that they can communicate with each other using a multiplex communication method. Therefore, one control device can acquire detection signals and control signals input to another control device and control the operation of various controlled devices.

[0151] Specifically, the multiple control devices may include a heating control device that controls the operation of various components of the vehicle heating device 1, an air conditioning control device that controls the operation of various components of the vehicle air conditioning device 2, and a driving control device that controls the operation of various components for vehicle driving. [Explanation of symbols]

[0152] 11a Driver's side radiant heater (radiant heating unit) 11b Passenger side radiant heater (radiant heating unit) 12a Driver's seat heater (heat conduction type heating unit) 12b Passenger seat heater (heat conduction type heating unit) 13 Steering heater (heat conduction type heating unit) 34a Driver's seat belt sensor (seating detection section) 34b Passenger seat belt sensor (seating detection section) 30a Radiation side heating control unit 30b Heat conduction side heating control section S104, S113, S204, S212 Boarding decision section

Claims

1. a radiant heating unit (11a, 11b) that radiates radiant heat toward a passenger sitting in a predetermined seat; a radiation-side heating control unit (30a) that controls the operation of the radiation heating unit; an on-board determination unit (S104, S113, S204, S212) that determines whether or not the occupant is on board; a heating capacity request unit (41a) that can request the radiation heating unit to exert heating capacity by a user's operation; and an operation display unit (42) that displays operation information indicating that the radiant heating unit is operating, When the occupancy determination unit determines that the occupant is not in the vehicle, the radiation-side heating control unit reduces the heating capacity of the radiation-type heating unit compared to when the occupancy determination unit determines that the occupant is in the vehicle, The operation display unit displays the operation information when the user's operation requests the radiant heating unit to exert its heating capacity and the radiant side heating control unit reduces the heating capacity of the radiant heating unit.

2. The vehicle heating device according to claim 1, wherein the radiation side heating control unit reduces the heating capacity of the radiation heating unit when the occupancy determination unit determines that the occupant is not in the vehicle and the heating capacity request unit is not operated.

3. The vehicle heating device according to claim 1 or 2, wherein the radiation side heating control unit lowers a target upper limit temperature (THO) of the radiation heating unit when the occupancy determination unit determines that no occupant is in the vehicle.

4. a seating detection unit (34a, 34b) for detecting whether the occupant is seated; 4. The vehicle heating device according to claim 1, wherein the occupancy determination unit determines that the occupant is in the vehicle when the seating detection unit detects that the occupant is seated.

5. The vehicle heating device according to claim 4, wherein the occupancy determination unit determines that the occupant is in the vehicle after the seating detection unit detects that the occupant is seated, until a vehicle system is stopped.

6. The vehicle heating device according to claim 4, wherein the occupancy determination unit determines that the occupant is in the vehicle until a predetermined reference time has elapsed after the seating detection unit detects that the occupant is seated.

7. a system stop request unit (51) that requests the vehicle system to be stopped by a user operation; a heating capacity request unit (41a) that can request the radiant heating unit to exhibit heating capacity through the user's operation, A vehicle heating device as described in any one of claims 1 to 6, wherein when the system stop request unit requests the vehicle system to be stopped, the operating state of the heating capacity request unit is changed to a state that does not request the radiant heating unit to exert heating capacity.

8. a heat conduction type heating unit (12a, 12b, 13) that heats the occupant by heat conduction; a heating capacity request unit (41a) that can request the radiation heating unit to exert heating capacity by a user's operation, 8. A vehicle heating device as described in any one of claims 1 to 7, wherein the heating capacity request unit requests the radiation heating unit to exert its heating capacity and at the same time requests the thermal conduction heating unit to exert its heating capacity.

9. a heat conduction type heating unit (12a, 12b, 13) that heats the occupant by heat conduction; A heat conduction side heating control unit (30b) for controlling the operation of the heat conduction type heating unit; a door opening / closing detection unit (35a, 35b) for detecting the opening / closing state of a vehicle door; A vehicle heating device as described in any one of claims 1 to 8, wherein the heat conduction side heating control unit causes the heat conduction type heating unit to exert its heating capacity when the occupancy determination unit determines that the occupant is not in the vehicle and the door opening / closing detection unit detects that the door is open or closed.

Images