JP2019073105A - Vehicle control device and vehicle control method - Google Patents

Abstract

To provide a vehicle control device which improves accuracy of determining whether or not abnormal change in body conditions occurs in a driver of a vehicle and protects the driver having the abnormal change in the body conditions more safely.SOLUTION: A vehicle control device 1 has: a body temperature measurement unit 111 which measures a body temperature of a driver of a vehicle S; a running state determination unit 112 which determines whether or not a running state of the vehicle S is abnormal; and a vehicle control unit 114 which controls the vehicle S on the basis of a measurement result of the body temperature measurement unit 111 and a determination result of the running state determination unit 112.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to a vehicle control device and a vehicle control method.

  Conventionally, a device for detecting an abnormal condition of a driver of a vehicle has been used. Patent Document 1 discloses an apparatus for detecting a driver's physical condition by detecting a driving behavior of a vehicle.

JP, 2015-214171, A

  However, the driving behavior of the vehicle may be abnormal even by a driver who has not experienced any physical condition change. Therefore, when detecting the driver's physical condition by detecting the driving behavior of the vehicle, there is a problem that it is easy to misjudge that the physical condition change is occurring even though the driver's physical condition change is not occurring. The

  Therefore, the present disclosure has been made in view of these points, and improves the accuracy of determining whether or not a physical condition change has occurred in the driver of the vehicle, thereby making the driver having the physical condition change safer. An object of the present invention is to provide a vehicle control device that can be protected.

  In the first aspect of the present disclosure, a body temperature measurement unit that measures a body temperature of a driver of a vehicle, a traveling state determination unit that determines whether a traveling state of the vehicle is abnormal, and a body temperature measurement unit And a vehicle control unit configured to control the vehicle based on a measurement result and a determination result of the traveling state determination unit.

  Further, the vehicle control unit further includes an internal notification unit that notifies the driver that a physical condition change has occurred, and the vehicle control unit determines that the temperature of the driver measured by the body temperature measuring unit is equal to or higher than a predetermined threshold. The internal notification unit may be operated.

  In addition, when the temperature of the driver measured by the body temperature measurement unit is equal to or more than a predetermined threshold, and the traveling state determination unit determines that the traveling state of the vehicle is abnormal, the vehicle control unit determines that The vehicle may be stopped.

  The vehicle control unit further includes an internal notification unit that notifies the driver that a physical condition change is occurring, and a reaction detection unit that detects a reaction of the driver, and the vehicle control unit is the body temperature measurement unit. In the case where the measured body temperature of the driver is less than a predetermined threshold and the traveling state determination unit determines that the traveling state of the vehicle is abnormal, the reaction detection is performed after the internal notification unit is operated. It is also possible to detect whether or not there is a reaction of the driver by the unit, and to stop the vehicle when the reaction detection unit does not detect the reaction of the driver.

  The vehicle control unit may further operate the transmission unit when the reaction detection unit does not detect a reaction of the driver.

  Further, the vehicle control unit further includes an internal notification unit that notifies the driver that a physical condition change has occurred, and the vehicle control unit determines that the temperature of the driver measured by the body temperature measuring unit is equal to or higher than a predetermined threshold value. When the traveling state determination unit determines that the traveling state of the vehicle is not abnormal, the internal notification unit may be operated.

  Further, an accelerator opening degree detection unit that detects that the driver is performing an accelerator operation, a position detection unit that detects the position of the vehicle, and a brake that detects that the driver is performing a brake operation A pressure detection unit, and the traveling state determination unit uses at least one of the accelerator opening degree detection unit, the position detection unit, and the brake pressure detection unit to determine the traveling state of the vehicle It may be determined whether or not it is abnormal.

  In a second aspect of the present disclosure, a body temperature measurement step of measuring a body temperature of a driver of a vehicle, which is executed by a computer, and a traveling state determination step of determining whether the traveling state of the vehicle is abnormal. And a vehicle control step of controlling the vehicle based on the measurement result of the body temperature measurement step and the determination result of the traveling state determination step.

  According to the present disclosure, it is possible to improve the accuracy of determining whether or not a physical condition change has occurred in a driver of a vehicle, and to achieve a safer protection of a driver who has a physical condition change.

1 shows a configuration of a vehicle having a vehicle control device. It is a flowchart which shows the flow of operation | movement of a vehicle control apparatus.

This Embodiment
[Configuration of Vehicle S]
FIG. 1 is a view showing the configuration of a vehicle S having a vehicle control device 1.
The vehicle S includes a vehicle control device 1, a temperature sensor 2, an accelerator opening degree detection unit 3, a position detection unit 4, a brake pressure detection unit 5, an internal notification unit 6, an automatic steering unit 7, a transmission unit 8, and an external notification unit 9. Have.

  The vehicle control device 1 is a device that determines whether or not the driver of the vehicle S is in a physical condition change, and controls the vehicle S so as to safely protect the driver of the vehicle S based on the determination result. The temperature sensor 2 has a function of measuring the temperature of the driver of the vehicle S. The temperature sensor 2 is, for example, an infrared sensor.

  The accelerator opening degree detection unit 3 is a device that detects that the driver of the vehicle S is performing an accelerator operation of the vehicle S. Specifically, the accelerator opening degree detection unit 3 detects an accelerator opening degree by an accelerator operation of the driver of the vehicle S. The position detection unit 4 is a device having a function of detecting the position of the vehicle S. The position detection unit 4 includes, for example, a GPS receiver that receives a GPS (Global Positioning System) signal. The position detection unit 4 notifies the control unit 11 of information indicating the detected position.

  The brake pressure detection unit 5 is a device that detects that the driver of the vehicle S is performing a brake operation on the vehicle S. Specifically, the brake pressure detection unit 5 detects a brake pressure caused by the driver's brake operation of the vehicle S. The internal notification unit 6 has a function of notifying the driver of the vehicle S that a physical condition change has occurred. The internal notification unit 6 is, for example, a display in the instrument panel or a speaker provided in the vehicle S. The physical condition change that occurs in the driver includes, for example, heatstroke, seizures, impaired consciousness, or a state in which the consciousness is depressed due to severe pain in the chest or abdomen.

  The automatic steering unit 7 has a function of automatically steering the vehicle S in a state where the driver of the vehicle S does not steer the vehicle S. When the driver of the vehicle S is in a physical condition, the transmitting unit 8 sends an emergency evacuation signal to an external contact such as JAF (Japan Automobile Federation), a fire department, a police station, etc. It has a function to transmit. The transmitter 8 is, for example, a wireless communication device.

  The external notification unit 9 has a function of notifying the outside of the vehicle S that the driver's physical condition has changed. The external notification unit 9 is, for example, a hazard lamp or a horn.

Configuration of Vehicle Control Device 1
Next, the configuration of the vehicle control device 1 will be described. The vehicle control device 1 includes a control unit 11 and a storage unit 12. The control unit 11 is, for example, a CPU (Central Processing Unit), and executes the program stored in the storage unit 12 to obtain the body temperature measurement unit 111, the traveling state determination unit 112, the reaction detection unit 113, and the vehicle control unit 114. Act as. Details of the control unit 11 will be described later.

  The storage unit 12 includes a read only memory (ROM) and a random access memory (RAM). The storage unit 12 stores a program that the control unit 11 executes. The storage unit 12 stores various data used by the control unit 11 to control the driving of the vehicle S.

  The storage unit 12 also stores an abnormal driving pattern of the vehicle S. As the abnormal driving pattern, for example, when it is detected that the vehicle S is traveling around the station in the commuting time zone by GPS, the vehicle S approaches the preceding vehicle at a turn of a signal or the vehicle S joins. There is a driving pattern that leaves the lane early at a point.

  The body temperature measurement unit 111 operates the temperature sensor 2 to measure the body temperature of the driver of the vehicle S with the temperature sensor 2. Then, the body temperature measurement unit 111 acquires the body temperature information of the driver measured by the temperature sensor 2 and notifies the vehicle control unit 114 of the acquired body temperature information.

  The traveling state determination unit 112 acquires the detection result of the accelerator opening degree detection unit 3, the detection result of the position of the vehicle S by the position detection unit 4, and the detection result of the brake pressure detection unit 5. Then, the traveling state determination unit 112 uses at least one of the accelerator opening degree detection unit 3, the position detection unit 4, and the brake pressure detection unit 5 to determine whether the traveling state of the vehicle S is abnormal or not. judge. Specifically, the traveling state determination unit 112 compares the acquired detection result with the abnormal driving pattern of the vehicle S stored in the storage unit 12. Then, the traveling state determination unit 112 determines whether the traveling state of the vehicle S is abnormal by comparing the acquired detection result with the abnormal driving pattern of the vehicle S stored in the storage unit 12 . Then, the traveling state determination unit 112 notifies the vehicle control unit 114 of the determined result.

  The reaction detection unit 113 detects the reaction of the driver of the vehicle S. Specifically, the reaction detection unit 113 acquires operation information from the brake pressure detection unit 5 when the driver operates, for example, a brake. Then, the reaction detection unit 113 notifies the vehicle control unit 114 of the operation information. The reaction detection unit 113 may obtain operation information from the operation unit that can be operated by the driver of the vehicle S as well as the brake pressure detection unit 5, and may obtain, for example, operation information from the operation switch.

  The vehicle control unit 114 has a function of controlling the vehicle S based on the measurement result of the body temperature measurement unit 111 and the determination result of the traveling state determination unit 112. The vehicle control unit 114 acquires body temperature information of the driver of the vehicle S from the body temperature measurement unit 111. Further, the vehicle control unit 114 acquires, from the traveling state determination unit 112, the determination result as to whether or not the traveling state of the vehicle S is abnormal. And the vehicle control part 114 controls each part of the vehicle S based on the determination result of whether the driving state of the driver of the vehicle S and the traveling state of the vehicle S are abnormal.

[Operation Flowchart of Vehicle Control Device 1]
FIG. 2 is a flowchart showing the flow of the operation of the vehicle control device 1.
First, the vehicle control unit 114 operates the body temperature measurement unit 111 to measure the body temperature of the driver of the vehicle S (S11). And vehicle control part 114 acquires a driver's body temperature information (S12). Next, the traveling state determination unit 112 detects the traveling state of the vehicle S (S13).

  Next, the vehicle control unit 114 determines whether or not the body temperature of the driver of the vehicle S detected in S11 is equal to or higher than a predetermined threshold (S14), and the driver's body temperature is equal to or higher than the predetermined threshold If it is determined (YES in S14), it is determined whether the traveling state of the vehicle S detected in S13 is abnormal (S15). When the vehicle control unit 114 determines that the traveling state of the vehicle S is abnormal in S15 (YES in S15), the vehicle control unit 114 notifies by operating the internal notification unit 6 (S16), and then stops the vehicle S ((S16) S17). The vehicle control unit 114 stops the vehicle S, for example, when there is no operation by the driver S, for example, a brake operation within a predetermined first time period after the internal notification unit 6 is operated.

For example, as an example where the driver's temperature of the driver of the vehicle S is equal to or higher than a predetermined threshold, when the driver is in heat stroke, it is expected that the following abnormal driving will be performed.
The pedaling force for operating the driver's brake at the time of deceleration of the vehicle S becomes weak, and the vehicle S abnormally approaches the vehicle traveling in front of the vehicle S.
The driver of the vehicle S is in a posture to lean on the seat, and the steering becomes slow. As a result, the vehicle S is slow to adapt on the curve, and may curve out of the lane or get too inward.

The driver wants to travel at his own pace, and the vehicle S travels at an abnormally low speed as compared to the surrounding vehicles. As a result, the front vehicle is not present near the front of the vehicle S, and a large number of following vehicles are present behind the vehicle S, and the vehicles S are successively overtaken by the following vehicles.
-Despite the sudden stop of the forward vehicle running in front of the vehicle S, the driver's depression force to operate the brake is weak or the reaction of the driver's brake application is in spite of the high speed of the vehicle S It will be in a state of being late.

  The predetermined threshold used in S14 may be set by the driver of the vehicle S. In this case, for example, the elderly sense the temperature sensation more slowly than the young, so when the driver is the elderly, set a smaller value as the predetermined threshold compared to when the driver is the young. You may

  When it is determined in S15 that the traveling state of the vehicle S is not abnormal (NO in S15), the vehicle control unit 114 operates the internal notification unit 6 (S18). Specifically, for example, it is assumed that the vehicle S is normally driven although the driver is generating heat. However, when the driver of the vehicle S is, for example, heat stroke, the driver has a risk more than when he is healthy, and thus may develop consciousness disorder or cramps while driving. Therefore, the vehicle control unit 114 can warn the driver of the danger with the internal notification unit 6. The driver can recognize his / her symptom by the warning from the internal notification unit 6, and can stop the vehicle S at the driver's judgment.

  In S14, when the vehicle control unit 114 determines that the body temperature is less than the predetermined threshold (NO in S14), the traveling state determination unit 112 determines whether the traveling state of the vehicle S is abnormal (S19) ).

  When the traveling state determination unit 112 determines in S19 that the traveling state of the vehicle S is abnormal (YES in S19), the vehicle control unit 114 operates the internal notification unit 6 (S20). The vehicle control unit 114 acquires a result detected by the reaction detection unit 113 after notifying the driver by the internal notification unit 6 in S20, and determines the presence or absence of the driver's reaction based on the acquired result ( S21).

  Specifically, the reaction detection unit 113 determines whether an operation by the driver of the vehicle S, for example, a brake operation is performed within a predetermined second time after the vehicle control unit 114 operates the internal notification unit 6. To detect. The predetermined second time is, for example, a time based on a time when a human can start an action in response to an external instruction, and is, for example, one second. Then, when there is no reaction of the driver of the vehicle S within the predetermined second time (YES in S21), the vehicle control unit 114 stops the vehicle S (S17).

  In addition, when there is a driver's reaction in S21 (NO in S21), the process is returned to S11. When it is determined that the traveling state of the vehicle S is not abnormal (NO in S19), the vehicle control device 1 returns the process to S11.

  Specifically, although the driver of the vehicle S does not have a symptom of heat generation, the traveling state of the vehicle S may be abnormal. In this case, the driver of the vehicle S may have developed a physical disorder not exhibiting symptoms of fever, for example, an unconsciousness due to another cause or a seizure. Therefore, in this case, the vehicle control unit 114 detects the reaction of the driver of the vehicle S by operating the internal notification unit 6 to warn the driver, and for example, the driver's If there is no response, the vehicle S is stopped. In addition, when the driver's awareness is normal and there is a reaction of the driver, for example, the vehicle control device 1 provides driving support to the driver to provide the vehicle S in a safe place, such as a shelter or a hospital. It may be guided to the same level.

  In addition, when there is no driver's reaction (YES in S21), the vehicle control unit 114 operates the transmission unit 8 to communicate with an external organization, such as JAF, a fire department, which is a contact destination registered in advance in the storage unit 12. Alternatively, an emergency evacuation signal may be sent to the police station.

  In addition, although the vehicle control unit 114 is configured to stop the vehicle S in S17, the vehicle control unit 114 may operate the automatic steering unit 7. In this case, the vehicle control unit 114 operates the automatic steering unit 7 so that the vehicle S can perform automatic driving without the need for the driver's driving operation. In this case, the vehicle S, which is automatically steered in S17, may travel at a reduced speed, for example, and may stop at a safe place. Then, the vehicle S may be released from the door lock of the vehicle S so that the surrounding people can rescue the driver after the vehicle S is stopped.

In addition, the vehicle control unit 114 operates the external notification unit 9 after the notification by the internal notification unit 6 in S16, or when there is no driver's reaction in S21 (YES in S21), the vehicle S The driver of the vehicle S may be notified outside that an abnormality due to a physical condition change has occurred. In this case, specifically, the vehicle control unit 114 may notify the outside of the vehicle S visually or aurally by turning on a hazard lamp or sounding a horn.
[Modification]

  In the above embodiment, the vehicle S has the position detection unit 4, and the traveling state determination unit 112 determines whether the traveling state is abnormal based on the position information acquired from the position detection unit 4. However, it is not limited to this. The vehicle S has, for example, a lane departure warning device or a collision prevention device, and the traveling state determination unit 112 determines whether the traveling state is abnormal based on the signals acquired from these devices. May be When the vehicle S has a lane departure warning device, the traveling state determination unit 112 determines that the traveling state is abnormal, for example, when detecting that the vehicle S is out of the lane. When the vehicle S has a collision prevention device, for example, when it is detected that the distance between the vehicle S and the vehicle located in front of the vehicle S is within a predetermined distance, the traveling state is abnormal. judge.

  In addition, after the vehicle control unit 114 determines that the body temperature is equal to or higher than the predetermined threshold value in S14, the vehicle S lowers the temperature in the vehicle S by operating the air conditioner provided in the vehicle S. You may In addition, a mist release device for releasing misty water to the vehicle S is provided, and the vehicle control unit 114 determines that the body temperature is equal to or higher than a predetermined threshold in S14, and then misty water from the mist release device May be released to the driver.

[Effect of the vehicle control device 1 according to the present embodiment]
The vehicle control device 1 according to the present embodiment includes a body temperature measurement unit 111 that measures the body temperature of the driver of the vehicle S, a traveling state determination unit 112 that determines whether the traveling state of the vehicle S is abnormal, and the body temperature. The vehicle control unit 114 controls the vehicle S based on the measurement result of the measurement unit 111 and the determination result of the traveling state determination unit 112.

  The vehicle control device 1 according to the present embodiment includes the vehicle control unit 114 that controls the vehicle S based on the measurement result of the body temperature measurement unit 111 and the determination result of the traveling state determination unit 112 as described above. Therefore, the vehicle control device 1 can control the vehicle S using the measurement result of the body temperature of the driver of the vehicle S in addition to the determination result of whether or not the traveling state of the vehicle S is abnormal. As a result, the vehicle control device 1 improves the accuracy of determining whether a physical condition change has occurred in the driver of the vehicle S, and can safely protect a driver who has a physical condition change.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It is apparent to those skilled in the art that various changes or modifications can be added to the above embodiment. It is also apparent from the scope of the claims that the embodiments added with such alterations or improvements can be included in the technical scope of the present invention.

S ... Vehicle 1 ... Vehicle control device 11 ... Control unit 111 ... Body temperature measurement unit 112 ... Running state determination unit 113 ... Reaction detection unit 114 ... Vehicle control unit 12 ... Storage unit 2 Temperature sensor 3 Accelerator opening degree detection unit 4 Position detection unit 5 Brake pressure detection unit 6 Internal notification unit 7 Automatic steering unit 8 · Transmission unit 9 · · · External notification unit

Claims (8)

A body temperature measurement unit that measures the body temperature of the driver of the vehicle;
A traveling state determination unit that determines whether the traveling state of the vehicle is abnormal;
A vehicle control unit that controls the vehicle based on the measurement result of the body temperature measurement unit and the determination result of the traveling state determination unit;
A vehicle control apparatus comprising: The system further includes an internal notification unit that notifies the driver that a physical condition change has occurred,
The vehicle control unit operates the internal notification unit when the temperature of the driver measured by the body temperature measurement unit is equal to or higher than a predetermined threshold.
The vehicle control device according to claim 1. The vehicle control unit is the vehicle when the driver's body temperature measured by the body temperature measuring unit is equal to or greater than a predetermined threshold, and when the traveling state determination unit determines that the traveling state of the vehicle is abnormal. To stop the
The vehicle control device according to claim 1. An internal notification unit for notifying the driver that a physical condition change has occurred;
A reaction detection unit that detects a reaction of the driver;
And have
When the vehicle control unit determines that the driver's body temperature measured by the body temperature measuring unit is less than a predetermined threshold and the traveling state determination unit determines that the traveling state of the vehicle is abnormal, the inside After activating the notification unit, the reaction detection unit detects whether or not there is a reaction from the driver, and the reaction detection unit stops the vehicle when the reaction from the driver is not detected. Feature
The vehicle control device according to any one of claims 1 to 3. It further has a transmitter for transmitting an emergency evacuation signal to an external organization,
The vehicle control unit operates the transmission unit when the reaction detection unit does not detect a reaction of the driver.
The vehicle control device according to claim 4. The system further includes an internal notification unit that notifies the driver that a physical condition change has occurred,
When the vehicle control unit determines that the traveling state determination unit determines that the traveling state of the vehicle is not abnormal when the body temperature of the driver measured by the body temperature measuring unit is equal to or higher than a predetermined threshold, Operating the notification unit,
The vehicle control device according to any one of claims 1 to 5. An accelerator opening detection unit that detects that the driver is performing an accelerator operation;
A position detection unit that detects the position of the vehicle;
A brake pressure detection unit that detects that the driver is performing a brake operation;
Have
The traveling state determination unit determines whether the traveling state of the vehicle is abnormal using at least one of the accelerator opening degree detection unit, the position detection unit, and the brake pressure detection unit. It is characterized by
The vehicle control device according to any one of claims 1 to 6. Run by a computer,
A body temperature measurement step for measuring the body temperature of the driver of the vehicle;
A traveling state determination step of determining whether the traveling state of the vehicle is abnormal;
A vehicle control step of controlling the vehicle based on the measurement result of the body temperature measurement step and the determination result of the traveling state determination step;
A vehicle control method comprising:

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