JP-7856046-B2 - Information notification device and information notification method

JP7856046B2JP 7856046 B2JP7856046 B2JP 7856046B2JP-7856046-B2

Inventors

金子智彦
森村純一
丸山俊
平池龍馬
小見聡

Assignees

トヨタ自動車株式会社

Dates

Publication Date: 20260511
Application Date: 20230510

Claims (3)

A fault information detection unit that detects fault information affecting the vehicle's operation while the vehicle is in motion, A notification control unit that notifies a following vehicle of at least one of the following information, namely the fault information and behavioral information relating to the behavior of the vehicle caused by the fault information, via a display installed on the vehicle so as to be visible to the following vehicle located behind the vehicle , A driver position detection unit that detects the position of the driver of the following vehicle. Equipped with, The aforementioned display has a plurality of display units that are positioned at different locations within the vehicle. When the notification control unit notifies the following vehicle of the at least one of the pieces of information, it changes the display position of the at least one piece of information on the display according to the position of the driver of the following vehicle. The notification control unit is an information notification device that, when the risk level posed to the following vehicle based on the fault information is high, increases the number of display units on which at least one of the pieces of information is displayed compared to when the risk level is low .
The information notification device according to claim 1 , wherein the notification control unit determines a recommended action for the following vehicle based on the fault information and notifies the following vehicle of the recommended action via the display.
A method of notifying information performed by a computer, To detect fault information that may affect the vehicle's operation while the vehicle is in motion, A display provided on the vehicle so as to be visible to a following vehicle located behind the vehicle , the display having a plurality of display units positioned at different locations on the vehicle , notifies the following vehicle of at least one of the fault information and behavioral information relating to the behavior of the vehicle caused by the fault information . To detect the position of the driver of the following vehicle, When notifying the following vehicle of at least one of the aforementioned pieces of information, the display position of at least one of the aforementioned pieces of information on the display is changed according to the position of the driver of the following vehicle. When the risk level posed to the following vehicle based on the aforementioned fault information is high, the number of display units on which at least one of the aforementioned pieces of information is displayed will be increased compared to when the risk level is low. Information notification methods, including those mentioned above.

Description

This invention relates to an information notification device and an information notification method. Patent Document 1 describes a method of notifying pedestrians and following vehicles of a risk of collision between a pedestrian located in front of the vehicle and a following vehicle located behind the vehicle, using a hazard warning device (e.g., headlights, horn, etc.) installed on the vehicle for purposes other than warning of the hazard. Patent Document 2 describes a system that, when a pedestrian blocked by a parked vehicle in front of the vehicle is detected via vehicle-to-pedestrian communication, displays information about the pedestrian (a pedestrian icon and the time until the pedestrian is seen) on the vehicle's HMI. Japanese Patent Publication No. 2017-174449Japanese Patent Publication No. 2013-120574 This diagram schematically shows a part of the configuration of a vehicle equipped with an information notification device according to the first embodiment of the present invention.This is a schematic side view of the vehicle.This figure shows an example of a situation where there is a fallen object in front of a vehicle.This is a flowchart showing the control routine for notification processing in the first embodiment.This figure shows an example of information displayed on a screen to notify following vehicles.This figure shows an example of behavioral information and risk levels displayed on a screen to notify following vehicles.This is a functional block diagram of the ECU processor in a second embodiment of the present invention.This figure shows an example of a display having multiple display units.This is a flowchart showing the control routine for notification processing in the second embodiment. The embodiments of the present invention will be described in detail below with reference to the drawings. In the following description, similar components will be given the same reference numerals. <First Embodiment> The first embodiment of the present invention will be described below with reference to Figures 1 to 6. Figure 1 is a schematic diagram showing a part of the configuration of a vehicle 1 equipped with an information notification device according to the first embodiment of the present invention. As shown in Figure 1, the vehicle 1 comprises a surrounding information acquisition device 2, a vehicle behavior detection device 3, a human-machine interface (HMI) 4, a display 5, a communication device 6, and an electronic control unit (ECU) 10. The surrounding information acquisition device 2, the vehicle behavior detection device 3, the HMI 4, the display 5, and the communication device 6 are electrically connected to the ECU 10 via an in-vehicle network compliant with standards such as CAN (Controller Area Network). The surrounding information acquisition device 2 acquires data (images, point cloud data, etc.) around the vehicle 1 (the vehicle itself) as surrounding information for the vehicle 1. For example, the surrounding information acquisition device 2 includes a millimeter-wave radar, a camera (monocular camera or stereo camera), a LiDAR (Laser Imaging Detection And Ranging), or an ultrasonic sensor (sonar), or any combination thereof. The output of the surrounding information acquisition device 2, i.e., the surrounding information of the vehicle 1 acquired by the surrounding information acquisition device 2, is transmitted to the ECU 10. Figure 2 is a schematic side view of vehicle 1. As shown in Figure 2, vehicle 1 is equipped with a front camera 2a. The front camera 2a is positioned at the front of vehicle 1 (for example, behind the rearview mirror inside the vehicle, on the front bumper, etc.) to photograph the area in front of vehicle 1. The front camera 2a photographs the area in front of vehicle 1 and generates an image of the area in front of vehicle 1. The front camera 2a is an example of a surrounding information acquisition device 2. The vehicle behavior detection device 3 detects parameters indicating the behavior of the vehicle 1. The vehicle behavior detection device 3 includes, for example, a vehicle speed sensor (e.g., a wheel speed sensor) for detecting the speed of the vehicle 1, a yaw rate sensor for detecting the yaw rate of the vehicle 1, a brake pedal stroke sensor for detecting the braking force applied to the brake pedal of the vehicle 1, and a steering angle sensor for detecting the steering angle of the vehicle 1. The output of the vehicle behavior detection device 3, i.e., the parameters detected by the vehicle behavior detection device 3, is transmitted to the ECU 10. The HMI 4 is installed inside the vehicle cabin and facilitates the exchange of information between the vehicle 1 and its occupant (e.g., the driver). The HMI 4 includes an output unit (e.g., display, speaker, light source, vibration unit, etc.) that provides information to the occupant of the vehicle 1, and an input unit (e.g., touch panel, operation buttons, operation switches, microphone