CN110997372A

CN110997372A - Vehicle notification device

Info

Publication number: CN110997372A
Application number: CN201880049691.0A
Authority: CN
Inventors: 竹田弘; 儿玉政幸; 辻佑太
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2017-07-25
Filing date: 2018-07-24
Publication date: 2020-04-10
Anticipated expiration: 2038-07-24
Also published as: CN110997372B; WO2019022042A1; JP6791047B2; JP2019025929A

Abstract

The vehicle notification device is provided with an information acquisition unit (131) that acquires external concentration information indicating the concentration of fine particles outside the vehicle; and an information output unit (132) that outputs notification information indicating the fine particle concentration to a notification unit that notifies the occupant of the fine particle concentration in the vehicle. At the time of startup, an information output unit (132) generates and outputs notification information based on the external concentration information, and displays the notification information as an initial value of the fine particle concentration in the vehicle.

Description

Vehicle notification device

Cross reference to related applications

The present application is based on and claims priority from japanese patent application No. 2017-143594, filed on 25/7/2017, the entire contents of which are incorporated herein by reference.

Technical Field

The present invention relates to a vehicle notification device.

Background

In the system described in patent document 1, odor information around a current position is acquired in order to reduce inflow of odor from outside the vehicle. When it is predicted that the vehicle approaches the odor area based on the acquired ambient odor information, odor-resistant air conditioning is performed so that odor does not flow in.

Documents of the prior art

Patent document

Patent document 1 Japanese patent laid-open publication No. 2016-

In patent document 1, it is impossible to know whether or not fine particles are contained in the air in the vehicle room. Instead of performing odor control to prevent the inflow of odor, it is required to notify whether or not fine particles are contained in the air in the vehicle interior or to notify the proportion of the fine particles contained therein. The technique described in patent document 1 cannot cope with such a demand. In particular, even if a sensor for detecting fine particles is provided in the vehicle when the occupant starts the vehicle immediately after entering the vehicle, the fine particles may not be detected depending on the conditions, and therefore, new measures are required.

Disclosure of Invention

The purpose of the present invention is to provide a vehicle notification device that can notify information about fine particles contained in the air in a vehicle interior even at the time of startup.

The vehicle notification device of the present invention includes: an information acquisition unit (131) that acquires external concentration information indicating the concentration of fine particles outside the vehicle; and an information output unit (132) that outputs notification information indicating the fine particle concentration to a notification unit that notifies the occupant of the fine particle concentration in the vehicle. At the time of startup, the information output unit generates and outputs notification information based on the external concentration information, and displays the notification information as an initial value of the fine particle concentration in the vehicle.

The information output unit generates notification information based on the external concentration information, and outputs and displays the notification information as an initial value of the in-vehicle particulate concentration. Therefore, even when the detection of the fine particle concentration in the vehicle is unstable or impossible as in the case of starting, the fine particle concentration in the vehicle can be displayed.

In addition, the parenthesized symbols described in the "summary of the invention" and the "claims" indicate the correspondence with the "embodiment" described later, and do not indicate that the "summary of the invention" and the "claims" are limited to the "embodiment" described later.

Drawings

Fig. 1 is a schematic configuration diagram for explaining the configuration of the embodiment.

Fig. 2 is a flowchart for explaining the operation of the embodiment.

Detailed Description

The present embodiment will be described below with reference to the drawings. For the sake of easy understanding of the description, the same components are denoted by the same reference numerals as much as possible in the drawings, and redundant description is omitted.

A vehicle measurement device 10 according to the present embodiment will be described with reference to fig. 1. The vehicle measurement device 10 is a device installed in a vehicle (not shown as a whole), and is configured to measure the concentration of fine particles (PM2.5) floating in a space in a vehicle cabin of the vehicle. The vehicle measurement device 10 measures the concentration of fine particles in air passing through an air conditioner 20 mounted on a vehicle. Before describing the configuration of the vehicle measurement device 10, the configuration of the air conditioner 20 will be described first.

The air conditioner 20 is a device for air conditioning a vehicle interior. The air conditioner 20 includes an air conditioning case 200, a blower 250, a particle filter 240, and a heat exchange unit 260.

The air conditioning case 200 is a tubular member for guiding air as an air conditioning object into the vehicle compartment. Inside the air-conditioning case 200, air flows in a direction from the left side toward the right side in fig. 1. The air conditioning case 200 is formed with an inside air introduction part 210, an outside air introduction part 220, a face duct 270, and a foot duct 280.

The interior air introducing part 210 is an introducing port for sucking air (interior air) in the vehicle interior into the air conditioning case 200. The outside air introducing portion 220 is an inlet for sucking air (outside air) outside the vehicle compartment into the air conditioning casing 200. The inside air introduction part 210 and the outside air introduction part 220 are formed to be arranged at an upstream side portion of the air-conditioning case 200.

An inside/outside air switching door 230 is provided between the inside air introducing part 210 and the outside air introducing part 220. The inside/outside air switching door 230 is a door for switching between a state in which only the inside air introducing part 210 is opened and a state in which only the outside air introducing part 220 is opened. The state in which only the interior air introduction portion 210 is opened is a state in which interior air sucked from the vehicle interior is conditioned and blown out into the vehicle interior, that is, an interior air circulation state. The state in which only the outside air introducing unit 220 is opened is the state in which the outside air taken in from the outside of the vehicle interior is air-conditioned and blown out into the vehicle interior, that is, the outside air circulation state. The operation of the inside/outside air switching door 230 is controlled by a control unit 130 described later.

The face duct 270 and the foot duct 280 are discharge ports for guiding air-conditioned air into the vehicle interior. The face duct 270 and the foot duct 280 are formed in the downstream side portion of the air conditioning case 200. The face duct 270 is connected to a face outlet (not shown) for blowing out the air-conditioning wind toward the face of the occupant. The foot duct 280 is connected to a foot outlet (not shown) for blowing out the air-conditioned air toward the feet of the occupant.

A face door 271 is provided at an inlet portion of the face duct 270. When the face door 271 is in the open state as shown in fig. 1, the air-conditioned air is supplied from the face duct 270 to the face air outlet. Similarly, a foot door 281 is provided at an inlet portion of the foot duct 280. When the foot door 281 is in the open state, the air-conditioning air is supplied from the foot duct 280 to the foot air outlet. The operations of the face door 271 and the foot door 281 are controlled by the control unit 130.

For example, the downstream side of the face duct 270 may be branched into two, and one of the two branches may be connected to a defroster outlet port (not shown) formed near the window.

The blower 250 is a blower for sending air to the downstream side on the inner side of the air-conditioning case 200. The rotation speed of blower 250, that is, the air volume of the conditioned air blown out from air conditioner 20 is controlled by controller 130.

The particle filter 240 is a filter for removing fine particles contained in air passing through the air-conditioning case 200 from the air. The particle filter 240 is provided downstream of the inside air introducing part 210 and the outside air introducing part 220 and upstream of the blower 250.

The heat exchange unit 260 is a part that performs air conditioning by exchanging heat with a refrigerant or the like. The heat exchange unit 260 is provided downstream of the blower 250 and upstream of the face duct 270 and the foot duct 280. The heat exchanger 260 includes an evaporator for dehumidifying and cooling air, a heater core for heating air, an air mix door for adjusting the flow rate of air passing through the evaporator and the heater core (not shown). Since a known structure can be adopted as the structure of the heat exchanging unit 260, specific illustration and description thereof are omitted.

Next, the structure of the vehicle measurement device 10 will be described with reference to fig. 1. The vehicle measurement device 10 includes an in-vehicle particle sensor 110, a notification unit 120, a control unit 130, an out-of-vehicle particle sensor 140, and an operation instruction switch 150.

The in-vehicle particle sensor 110 is a sensor for measuring the concentration of particles in the air. As shown in fig. 1, one end of introduction pipe 290 is connected to air conditioning case 200 at a position downstream of particulate filter 240 and upstream of blower 250. The other end of the introduction pipe 290 opens into the vehicle interior. The in-vehicle particle sensor 110 is provided at a position in the middle of the introduction pipe 290. When air flows inside the air conditioning case 200, air flows through the introduction pipe 290 due to negative pressure generated on the air conditioning case 200 side. That is, a flow of air from the vehicle interior to the air conditioning casing 200 through the introduction pipe 290 is generated. The in-vehicle particle sensor 110 measures the concentration of fine particles contained in the air, and transmits the concentration to the control unit 130 by an electric signal.

Although not shown, the in-vehicle particle sensor 110 includes a light emitting portion and a light receiving portion, and air flows between the light emitting portion and the light receiving portion. When the particle concentration of the air becomes high, the amount of light received by the light receiving section becomes small. The in-vehicle particle sensor 110 measures the particle concentration based on the amount of light received by the light receiving portion.

In order to accurately measure the particle concentration by the in-vehicle particle sensor 110, it is necessary to generate a flow of air in the introduction pipe 290. Therefore, the measurement of the particle concentration of the in-vehicle particle sensor 110 in the present embodiment is performed only in a state where the air conditioning device 20 is performing air conditioning.

The vehicle-outside particle sensor 140 is a sensor for measuring the concentration of fine particles in the air outside the vehicle, and is disposed outside the vehicle. The principle of measurement of the particle sensor 140 outside the vehicle is the same as that of the particle sensor 110 inside the vehicle, and therefore, the description thereof is omitted. Since the vehicle-outside particle sensor 140 is disposed outside the vehicle, the concentration of fine particles can be measured regardless of whether the blower 250 is driven or not.

The notification unit 120 is a portion that notifies the occupant of the measurement results of the in-vehicle particle sensor 110 and the out-of-vehicle particle sensor 140. In the present embodiment, the notification unit 120 is configured as a liquid crystal display panel. That is, the notification to the occupant in the present embodiment is performed by visual display. Instead of this, the notification to the occupant by the notification unit 120 may be performed by voice or the like. The operation of the notification unit 120 is controlled by the control unit 130.

The operation instruction switch 150 is a switch for inputting an instruction to measure the concentration of fine particles to the control unit 130. In response to the instruction input, the control section 130 starts measuring the fine particle concentration.

The control unit 130 is a device for controlling the overall operation of the vehicle measurement device 10. The control unit 130 is configured as a computer system including a CPU, a ROM, a RAM, and the like. As described above, the control unit 130 controls the operations of the inside/outside air switching door 230, the blower 250, and the like. That is, the control unit 130 in the present embodiment is configured as a device that also controls the operation of the air conditioner 20.

Instead of this, an ECU for controlling the operation of the air conditioner 20 may be provided separately from the control unit 130. In this case, the control unit 130 may indirectly control a part of the operation of the air conditioner 20 by communicating with the ECU.

The control unit 130 can perform particle removal control. The particle removal control is control for effectively removing fine particles by the particle filter 240. In the particle removal control, the control unit 130 increases the rotation speed of the blower 250 to a predetermined value or more, after the inside air introducing unit 210 is opened by the inside/outside air switching door 230, that is, the inside air circulation state. This prevents fine particles from entering the vehicle interior from the outside, and effectively removes fine particles by the particle filter 240. Such particle removal control can be considered as control that affects the measurement of the particle concentration of the in-vehicle particle sensor 110. The particle removal control may be started automatically or in response to an operation of a switch or the like by the occupant.

The control unit 130 is configured to be able to receive information from the microparticle information server 35 via the network 30. The fine particle information server 35 transmits the fine particle concentration around the current position of the vehicle to the control unit 130 as external concentration information indicating the fine particle concentration outside the vehicle.

The control unit 130 is configured to be able to receive the provided information via the mobile terminal 160. Portable terminal 160 acquires the fine particle concentration around the current position of the vehicle, and transmits the acquired fine particle concentration to control unit 130 as external concentration information indicating the fine particle concentration outside the vehicle. The mobile terminal 160 may be provided with a sensor capable of detecting the concentration of fine particles. The mobile terminal 160 transmits the fine particle concentration detected by the sensor to the control unit 130.

The control unit 130 includes an information acquisition unit 131 and an information output unit 132 as functional components. The information acquiring unit 131 is a part that acquires external concentration information indicating the concentration of fine particles outside the vehicle. The control unit 130 corresponds to a vehicle notification device of the present invention.

The information output unit 132 is a portion that outputs notification information indicating the fine particle concentration to the notification unit 120, and the notification unit 120 notifies the occupant of the fine particle concentration in the vehicle. At the time of startup, the information output unit 132 generates and outputs notification information based on the external density information, and displays the notification information as an initial value of the fine particle density in the vehicle.

In this manner, the information output unit 132 generates the notification information based on the external density information, and outputs the notification information to display as the initial value of the density of the fine particles in the vehicle. Therefore, even when the detection of the fine particle concentration in the vehicle is unstable or impossible as in the case of starting, the fine particle concentration in the vehicle can be displayed.

In the present embodiment, the start-up refers to a case where the mode for acquiring the fine particle concentration is started by the operation of the operation instruction switch 150, and the blower 250 for air conditioning in the vehicle is stopped. Even if the mode for acquiring the fine particle concentration is started, if the blower 250 for air conditioning in the vehicle is stopped, air cannot be taken into the vehicle, and therefore the in-vehicle particle sensor 110 as fine particle concentration acquisition means provided in the vehicle cannot be caused to function. Therefore, when the mode of acquiring the fine particle concentration is started and the blower 250 performing air conditioning in the vehicle is stopped, notification information is generated and output based on the external concentration information to be displayed as an initial value of the fine particle concentration in the vehicle.

In the present embodiment, the information output unit 132 corrects the external density information based on the door opening/closing time and/or the number of open/closed states when the occupant is riding in the vehicle, and generates the notification information. The door is opened and closed when the passenger is riding the vehicle. Since the air outside the vehicle enters the vehicle as the door is opened and closed, the correlation between the concentration of fine particles in the air outside the vehicle and the concentration of fine particles in the air inside the vehicle changes depending on the open-closed state of the door. Therefore, by correcting the external density information and generating the notification information in accordance with the door opening/closing time and/or the number of open/closed states when the passenger is riding in the vehicle, the initial value of the fine particle density in the vehicle can be displayed more accurately.

In the present embodiment, when the open/close time of the door during the passenger riding is longer than the predetermined time, the information output unit 132 generates the notification information with a value closer to the outside density information than when the open/close time of the door during the passenger riding is shorter than the predetermined time as an initial value. If the opening and closing time of the door is long when the occupant gets in the vehicle, the amount of air outside the vehicle that enters the vehicle increases as the door is opened and closed. Therefore, when the opening/closing time of the door is longer than the predetermined time, the notification information is generated using the value close to the external density information as the initial value, and the initial value of the density of the fine particles in the vehicle can be displayed more accurately.

In the present embodiment, when the number of doors opened and closed during the riding of the passenger is greater than the predetermined number, the information output unit 132 generates the notification information with a value closer to the outside density information than when the number of doors opened and closed during the riding of the passenger is less than the predetermined number as an initial value. If the number of doors opened and closed when a passenger is riding in a vehicle is large, the amount of air outside the vehicle entering the vehicle increases as the doors are opened and closed. Therefore, when the number of opened and closed doors is larger than the predetermined number, the notification information is generated using the value close to the external density information as the initial value, and the initial value of the fine particle density in the vehicle can be displayed more accurately.

In the present embodiment, the number of the predetermined information output units 132 used for the above determination is one. When the number of doors opened and closed by the passenger is plural, air outside the vehicle is likely to enter the vehicle. Therefore, when the number of opened and closed doors is greater than 1, the notification information is generated using a value close to the outside density information as an initial value, and the initial value of the fine particle density in the vehicle can be displayed more accurately.

In the present embodiment, the information acquisition unit 131 can acquire the external concentration information via a communication means such as the network 30 or can acquire the external concentration information from the external particle sensor 140 mounted outside the vehicle. As the acquisition of the external density information via the communication unit, it is also possible to use the mobile terminal 160.

Next, the operation of the control unit 130 will be described with reference to fig. 2. In step S101, it is determined whether or not the mode for acquiring the fine particle concentration is activated after the passenger gets into the vehicle. If it is determined that the mode for obtaining the fine particle concentration is not started after the passenger gets into the vehicle, the process proceeds to step S111. If it is determined that the mode for obtaining the fine particle concentration is started after the passenger gets into the vehicle, the process proceeds to step S102.

In step S102, it is determined whether or not the blower 250 is off. If the blower 250 is off, the process proceeds to step S103, and if the blower 250 is not off, the process proceeds to step S111.

In step S103, it is determined whether the door opening/closing time is shorter than a threshold time that is a predetermined time. If the door opening/closing time is shorter than the threshold time, the process proceeds to step S104, and if the door opening/closing time is not shorter than the threshold time, the process proceeds to step S109.

In step S104, it is determined whether the number of opened and closed doors is one predetermined number. If the number of opened and closed doors is one, the process proceeds to step S105, and if the number of opened and closed doors is not one, that is, if the number of opened and closed doors is plural, the process proceeds to step S107.

In step S105, outside density information as the dust information outside the vehicle is obtained. In step S106 following step S105, notification information is generated so as to be in display mode 1. Specifically, the notification information is generated by multiplying the external density information by a minimum coefficient (for example, 0.5). The generated notification information is output to the notification unit 120.

In step S107, outside density information as the dust information outside the vehicle is obtained. In step S108 following step S107, notification information is generated so as to be in display mode 2. Specifically, the notification information is generated by multiplying the external density information by a medium coefficient (for example, 0.8). The generated notification information is output to the notification unit 120.

In step S109, outside density information as the dust information outside the vehicle is obtained. In step S110 following step S109, notification information is generated so as to be in display mode 3. Specifically, the notification information is generated by multiplying the external density information by a maximum coefficient (for example, 1). The generated notification information is output to the notification unit 120.

In step S111, notification information is generated based on the detection data output from the in-vehicle particle sensor 110, and output to the notification unit 120 to be displayed normally. When the occupant is not riding in the vehicle, the display is not performed, and the previous value is continuously displayed in the other cases. Further, the dust concentration in the vehicle interior may be detected by turning on the blower 250 immediately after the vehicle is taken by the pre-air conditioner without generating uncomfortable wind in the vehicle interior. Further, a fan may be mounted on in-vehicle particle sensor 110, and the dust concentration may be detected by ventilating in-vehicle particle sensor 110.

The present embodiment has been described above with reference to specific examples. However, the present invention is not limited to these specific examples. The present invention is not limited to the above-described embodiments, but various modifications can be made without departing from the scope of the present invention. The elements, the arrangement, conditions, shapes, and the like of the specific examples are not limited to those illustrated in the drawings, and may be appropriately modified. The combination of the elements included in the specific examples can be changed as appropriate without causing any technical contradiction.

Claims

1. A vehicle notification device is characterized by comprising:

an information acquisition unit (131) that acquires external concentration information indicating the concentration of fine particles outside the vehicle; and

an information output unit (132) that outputs notification information indicating the fine particle concentration to a notification unit that notifies an occupant of the fine particle concentration in the vehicle,

at the time of startup, the information output unit generates and outputs the notification information based on the external density information, and displays the notification information as an initial value of the density of fine particles in the vehicle.

2. The notification device for a vehicle according to claim 1,

the start-up time is a case where the mode for acquiring the fine particle concentration is started and the blower for air conditioning in the vehicle is stopped.

3. The notification device for a vehicle according to claim 1 or 2,

the information output unit corrects the external density information based on the door opening/closing time and/or the number of open/closed times when the occupant is riding in the vehicle, and generates notification information.

4. The notification device for a vehicle according to claim 3,

when the open/close time of the door when the occupant is riding is longer than a predetermined time, the information output unit generates the notification information using, as an initial value, a value closer to the external density information than when the open/close time of the door when the occupant is riding is shorter than the predetermined time.

5. The notification device for a vehicle according to claim 3,

when the number of doors opened and closed during the riding of the passenger is greater than the predetermined number, the information output unit generates the notification information using, as an initial value, a value closer to the outside density information than when the number of doors opened and closed during the riding of the passenger is less than the predetermined number.

6. The notification device for a vehicle according to claim 5,

the prescribed number is one.

7. The vehicular notification apparatus according to any one of claims 1 to 6,

the information acquisition unit acquires the external density information via a communication means or acquires the external density information from a sensor mounted outside the vehicle.