JP7137692B2 - Information providing device, information sharing system, program and information providing method - Google Patents

Description

The present invention relates to an information providing device, an information sharing system, a program, and an information providing method for sharing information between vehicles, for example.

A system called an intelligent transportation system (ITS) has been proposed in which communication is performed between vehicles or between a vehicle and a road antenna or the like.

As one application of such a system, a driving support system has been proposed that provides road surface information to a vehicle approaching the own vehicle (see Patent Document 1). According to Patent Document 1, when a vehicle approaching the own vehicle at a speed equal to or higher than a predetermined value is detected, the road surface condition is detected and the detected road surface condition is transmitted to the vehicle.

JP 2017-091338 (paragraph 0006 etc.)

However, in Patent Literature 1, the target for transmitting the road surface condition is a vehicle approaching the own vehicle. In addition, road surface conditions are detected and transmitted in real time as the vehicle approaches, and the target road surface is limited to the vicinity of the vehicle's current location. Therefore, the warning cannot be received when the vehicle is traveling alone.

SUMMARY OF THE INVENTION The present invention has been made in view of the above conventional example, and an object of the present invention is to provide effective information sharing by widely providing information based on own vehicle's experience to other vehicles.

According to one aspect of the present invention, receiving means for receiving, from a vehicle, detection information indicating a state detected by the vehicle;
generating means for generating slip information indicating the possibility of the vehicle slipping according to the type of the vehicle, based on the received detection information and the external environment information indicating the external environment;
transmitting means for transmitting the slip information to the vehicle;
The types of vehicles include two-wheeled vehicles and four-wheeled vehicles,
The generating means generates, according to the type of the vehicle, slip information indicating the possibility of slipping due to a predetermined cause corresponding to the type of the vehicle,
There is provided an information providing apparatus, wherein the type of vehicle is the type of vehicle to which the slip information is transmitted by the transmitting means.

According to the present invention, it is possible to effectively share information by providing a vehicle with information based on the own vehicle's experience.

1 is a control block diagram of a vehicle according to one embodiment of the present invention; FIG. The figure which shows an example of the communication environment of embodiment. FIG. 4 is a flowchart showing a procedure for collecting slip information; FIG. 4 is a flow diagram showing a procedure for transmitting slip information; The figure which shows an example of a structure of slip information. FIG. 4 is a flow diagram showing a procedure when slip information is received;

A vehicle and an information providing device according to embodiments of the present invention will be described with reference to the drawings. In the description, vehicles include four-wheeled vehicles and two-wheeled vehicles. In this embodiment, the term "two-wheeled vehicle" includes both those with two rear wheels and those with two front wheels.

●Communication system FIG. 2 is a diagram showing an outline of a communication system according to an embodiment of the present invention. In FIG. 2, a vehicle 201 and a vehicle 202 are two-wheeled vehicles equipped with the configuration shown in FIG. 1 according to the present embodiment. A vehicle 203 is a four-wheeled vehicle and has the configuration shown in FIG. 1 according to the present embodiment. These vehicles 201-203 can communicate with server 211 and can communicate with each other. The vehicle 201 can communicate with the server 211 via a fixed antenna 210, for example, buried under the road or provided on or beside the road. In FIG. 2, the communication is shown as if it were performed peer-to-peer, but the end-to-end communication partner may be between vehicles or between a vehicle and a server. good too. The configuration of the server 211 may be a general server, and includes a control unit 2111 including a processor and a storage unit 2112, for example. This server 211 functions as an information providing device for the vehicle.

●Configuration of Information Providing Device FIG. 1 shows a block diagram of a control unit including a control unit 101 mounted on a vehicle 201 or the like. The vehicle 201 also has a power unit such as an engine and a drive system such as gears, but only the configuration related to the present embodiment will be described here. In FIG. 1, a control unit 101 controls the entire configuration shown in FIG. In the following description, it is assumed that the control unit 101 is mounted on the vehicle 201. FIG. The control unit 101 includes, for example, a processor and memory, and by executing a program, can communicate with the server 211 and other vehicles, and display map information and slip information. State detection unit 110 includes various sensors that detect the state of vehicle 201 . This state is transmitted to the server 211, and slipping or the like is detected. A slip is a state in which the wheels (tires) of the vehicle 201 slide on the road surface without rolling. However, only one of them may be included. The slip information includes slip occurrence information indicating slip actually occurring and slip prediction information predicting that slip may occur.

The state detection unit 110 includes various sensors for detecting slippage. Slip is identified as one of the behaviors of the vehicle that is estimated based on the detected conditions. The sensor shown in FIG. 1 based thereon is an example. The sensors include, for example, a skid sensor 111, a speed sensor 112, an acceleration sensor 113, a sideslip sensor 114, a bank angle sensor 115, and a braking force sensor . The skid sensor 111 detects a skid state in which the wheels stop rotating while the vehicle is running. For example, if the vehicle is equipped with an anti-skid brake, a signal indicating activation of the anti-skid function may be used instead. A rotation speed sensor 112 detects the rotation speed of the engine per unit time.

In this example, the acceleration sensor 113 is an acceleration sensor capable of detecting linear acceleration in three mutually orthogonal directions as well as angular acceleration around each axis. Alternatively, it may be a sensor that detects either linear acceleration or angular acceleration.

The sideslip sensor 114 is a sensor for detecting the start of lateral sliding of the vehicle. Note that when side slip is detected based on the steering angle, speed and yaw rate, independent sensors may not be used. In that case, the angular acceleration around the yaw axis is detected by the acceleration sensor 113, and the steering angle is detected from the steering axis. A four-wheeled vehicle is equipped with a sideslip prevention device, and activation of the function may be determined as the occurrence of a sideslip, that is, the occurrence of a slip. Since a two-wheeled vehicle is not normally provided with one, the sideslip sensor 114 is omitted or newly provided.

Each bank sensor 115 is a sensor specific to a two-wheeled vehicle. Each bank sensor 115 measures the tilt about the roll axis. The inclination can be measured by using, for example, a weight rotatably supported on the shaft to be measured and a sensor for detecting the angle of rotation of the weight.

The control unit 101 transmits the state information detected by the state detection unit 110 to the server 211 . The server 211 detects occurrence of a slip based on detection results from various sensors such as those described above. The slip information is accumulated in the server 211 and provided to vehicles traveling near the fixed antenna 210 . Note that the control unit 101 mounted on the vehicle may determine the occurrence of slipping based on the detection results of various sensors of the state detection unit 110 . In that case, the control unit 101 may periodically make the determination, for example, and transmit slip information indicating the possibility of slip to the server 211 .

The external environment detection unit 120 detects the external environment in which the vehicle is running. In this example, the external environment detection unit 120 has a temperature sensor 121 and an external photographing camera 122 . A temperature sensor 121 detects temperature. The external photographing camera 122 is a camera that photographs the road surface and the surrounding environment, and the external environment is specified from the photographed image. Image processing is required for this purpose, and the image processing may be performed by the control unit 101, or the external photographing camera 122 may be provided with a processor dedicated to image processing. Note that the external environment includes the weather. For example, the wireless communication unit 130 may acquire weather information from the server 211 or the like and use it as the weather information. The external environment specified by the external environment detection unit 120 is used to generate slip prediction information indicating the possibility of slip and to specify the cause of actual slip.

Wireless communication unit 130 transmits and receives signals to and from other vehicles 201 and 203 and to and from server 211 via antenna 210 in accordance with a predetermined standard. The signals sent and received include weather information from the server 211, information on the state and environment detected by the state detection unit 110 and the external environment detection unit 120 (collectively referred to as detection information) to the server 211, and the like. be Under the control of the control unit 101, the wireless communication unit 130 periodically broadcasts the detection information, for example. Antenna 210 within its range receives and forwards the sensing information to server 211 .

The position detection unit 140 includes, for example, a GPS device, and can detect the current position. Other sensors may be used as long as they can detect the current position. The storage unit 150 stores various information such as slip information received from the server, programs, and the like. In this embodiment, non-volatile storage devices are used to store information. The contents of the slip information will be described later with reference to FIG.

The user interface unit 160 is composed of operation switches and a display unit (including a touch panel, etc.). In addition to various information, maps and the like can be displayed. Furthermore, a desired mark or the like can be displayed by superimposing it on the map.

●Slip Information Collection Processing With the configuration shown in FIG. An example of slip information collection processing by the server 211 is shown in FIG. FIG. 3 is realized by executing a program by the control unit 2111, for example. Further, in the present embodiment, the procedure of FIG. 3 is triggered when detection information is received from the vehicle or when a timer (not shown) set at predetermined time intervals expires.

First, the control unit 2111 of the server 211 first determines whether there is an externally captured image that can be used (S301). If an image is included in the received detection information, or if an image captured by a camera near the antenna 210 that received the detection information is available, it is determined that there is an external captured image. If it is determined that there is an external captured image, the external environment is specified including the captured image, and external environment information, which is information indicating the external environment, is generated (S303). Information used for identifying the external environment includes weather information, temperature, etc., in addition to images. The specified external environment is, for example, the weather (rain, snow, no rain or snow, etc.) from the weather information, and the temperature from the temperature sensor 121 . In the external environment information, the weather may be represented by a code or the like indicating the weather, and the temperature may be represented by a numerical value indicating the temperature. In addition, road surface conditions (floating sand, wetness, accumulated snow, white lines, manholes, etc.) are identified from the captured images by image recognition processing. Rainfall and snowfall may also be specified by image processing. Identified road conditions and weather may also be represented by corresponding codes and the like. Image recognition may be performed based on the degree of matching with patterns prepared in advance, or patterns corresponding to road surface conditions and the like may be learned using machine learning. Rainfall and snowfall recognized by image recognition may be preferentially used over rainfall and snowfall according to weather information.

On the other hand, if it is determined that there is no usable external captured image, the external environment is specified without the image and the external environment information is generated (S305). That is, here, among the external environments identified in step S303 described above, only those based on temperature and weather information are identified as external environments. For example, the weather information (rain, snow, no rain, snow, etc.) and temperature sensor 121 include the specified external environment.

Next, it is determined whether to perform slip prediction (S307). Whether or not to perform slip prediction may be determined, for example, by referring to a preset set value. The setting values to be referred to are saved in the control unit 101 or the storage unit 150 and referred to. If it is desired to generate slip information only when an actual slip occurs, it is sufficient to set the slip prediction not to be performed. Note that if the slip prediction is not set as an option and is fixed in advance, the determination in step S307 is unnecessary. In that case, if the slip prediction is to be performed, the process may be fixedly branched to step S311, and if not, the process may be fixedly branched to step S313.

When slip prediction is performed, slip prediction is executed based on external environment information to generate slip prediction information (S311). Slip prediction is performed, for example, as follows. For example, if the air temperature is below freezing and the road surface condition is determined to be wet, there is a possibility that the road surface is frozen. Therefore, in that case, slip prediction information caused by road surface freezing is generated. For example, a specific unique code is assigned to slip prediction caused by frozen road surface, and it is generated as slip prediction information. The same is true for other causes. Further, for example, if the road surface condition is covered with snow, slip prediction information caused by the snow covered road is generated. Slip prediction caused by road surface freezing or snow cover may be applied regardless of the type of two-wheel or four-wheel vehicle. For example, if images cannot be referenced, only weather information is referenced, and if there is a forecast of snow accumulation, slip prediction information caused by snow accumulation is generated. Causative slip prediction information may be generated.

In addition, when externally captured images are available, if a manhole or crosswalk (white line) in the middle of a curve or at a corner, or wetness of the road surface is detected from the image, slip prediction information caused by the manhole or crosswalk is generated. you can Manholes and white lines are particularly prone to slippage during rainfall, so rainfall may be added as a weather condition. Further, when floating sand on the road is detected from the image, slip prediction information caused by the floating sand may be generated. Floating sand is particularly likely to cause slipping when the road surface is dry, so the absence of rain or snow may be an additional condition. Slip prediction information caused by manholes, pedestrian crossings, and floating sand is applied to two-wheeled vehicles in this embodiment, and is not applied to four-wheeled vehicles. For example, if the cause of the slip is given a priority that does not exceed the predetermined priority, and the cause of the slip prediction is the cause of the slip prediction, the slip prediction information is transmitted only for motorcycles. It can be the first. If the cause corresponding to the slip prediction cannot be identified, for example, a code indicating that there is no slip prediction information is generated instead of the slip prediction information.

In step S313, the occurrence of slip is identified based on the state information, the cause of slip is identified based on the external environment information, and slip occurrence information indicating the occurrence and cause of slip is generated (S313). The occurrence of slip is detected in the following manner, for example, in this embodiment.
1. If a skid state is detected, then the controller 2111 determines that a slip has occurred.
2. If the engine speed rises rapidly (exceeding a predetermined rate of increase), there is a possibility that the vehicle 201 overturns and the running load is reduced, causing the engine speed to rise rapidly. , the control unit 2111 determines that a slip has occurred. For the predetermined rate of increase, a value that exceeds the rate of increase due to normal throttle operation may be selected.
3. If a linear acceleration or angular acceleration exceeding a predetermined value is detected, then the controller 2111110 determines that a slip has occurred. Each of the linear acceleration and the angular acceleration may be identified by synthesizing the acceleration or angular acceleration of each axis, and the value thereof may be compared with a threshold value for determination.
4. If the yaw rate exceeds the upper limit of the yaw rate predicted from the steering angle and speed, the controller 2111 may determine that a slip has occurred.
5. The inclination around the roll axis is measured by each bank sensor, and if the value exceeds a predetermined threshold value, the controller 2111 may determine that a slip has occurred. Since each bank sensor 115 is a sensor peculiar to a two-wheeled vehicle, if the received detection information is from a four-wheeled vehicle, this judgment need not be made.
Of course, these determinations are examples, and other criteria may be used for determination.

When it is determined that a slip has occurred, the cause is further specified. Information indicating the cause is also included in the slip occurrence information. The slip cause may be specified in the same manner as in step S311. Moreover, if there is rainfall or snowfall, it may be the cause. In any case, a high priority may be given to the cause that is most likely to induce a slip, and the presence or absence of applicableness may be determined in order from the cause with the highest priority, and if applicable, the cause may be specified. However, it may be difficult to identify the cause even though the slip actually occurs. For example, the cause of the slippage is due to a vehicle-specific cause such as excessive tire wear, or the external environment, which is difficult to detect, such as local floating sand. In such a case, the cause may be left unknown without forcibly specifying the cause. The priority of the above-mentioned causes may be determined in advance. For example, the highest priority may be given to road surface freezing, accumulated snow, floating sand, manholes, pedestrian crossings (white lines), rainfall, road surface wetness, and the like. The priority may be referred to, for example, for determining the transmission destination of the slip information. High-priority road surface icy and snow cover may also transmit slip information to four-wheeled vehicles, and others may transmit only to two-wheeled vehicles.

After this, the presence or absence of information to be saved is determined (S315). If slip occurrence information or slip prediction information has been generated, it is determined that there is information to be saved since these information are to be saved. On the other hand, if neither the slip prediction information nor the slip occurrence information can be generated, it is determined that there is no information to be saved. In that case, the process branches to step S315.

If there is information to be saved, first, position information is acquired from the received detection information (S317). Then, the acquired position information is stored as slip information in the storage unit 2112 of the server 211 in association with the generated slip occurrence information or slip prediction information. In addition, the date and time of generation of the slip information or the date and time included in the detection information that is the source of the slip occurrence information or the slip prediction information is given as the generation date and time to the stored slip information. After that, the stored slip information is searched for the slip information for which a predetermined time has passed since the associated date and time of generation (S321), and if there is such information, it is deleted (S323). Note that steps S321 and S323 may not be performed in the procedure of FIG. 3, and may be performed periodically asynchronously with the procedure of FIG.

●Slip Information FIG. 5 shows an example of the configuration of the slip information 50 stored in the storage unit 2112. As shown in FIG. The slip information includes a slip information record 52 that is a collection of pieces of information generated by one generation process of slip occurrence information or slip prediction information. The slip information record 52 is included in an area record group 51 grouped by the location where the slip that triggered the generation of the slip information record 52 occurred or the location where the cause of the generation of the slip prediction information was detected. The area represented by the area record group 51 may be determined in advance. This may, for example, be related to the position of the antenna 210 transmitting the slip information. That is, the coverage of each antenna 210 may be determined as one area, and one area record group 51 may be constructed from slip information associated with positions included in that area.

Each slip information record 52 includes a slip/slip prediction field 521 , position information field 522 , cause information field 523 , generation date/time field 524 and vehicle type field 525 . The slip/slip prediction field 521 is a code indicating slip occurrence information or slip prediction information. The position information field 522 is the position information acquired in step S317 of FIG. The cause information field 523 is a field indicating the cause identified in step S311 or S313. The date and time of generation field 524 is the date and time when the slip occurrence information or the slip prediction information is generated. The vehicle type field 525 is a transmission destination for transmitting slip occurrence information or slip prediction information, and in this example, it is either a four-wheeled vehicle or a two-wheeled vehicle. Alternatively, it may be the type of the transmission source vehicle of the detection information that caused the generation of the slip information record. In the latter case, the slip information generated from the detected information of the two-wheeled vehicle is transmitted to the two-wheeled vehicle, and the slip information generated from the detected information of the four-wheeled vehicle is transmitted to the two-wheeled vehicle and the four-wheeled vehicle. Also, when the destination is determined according to the priority of the slip cause, a two-wheeled vehicle or a four-wheeled vehicle is set according to the priority. Also at this time, when a four-wheeled vehicle is specified, a two-wheeled vehicle may also be a transmission destination. Vehicle type 515 may be recorded, for example, at the time of storage in step S319.

Transmission of Slip Information Slip information accumulated in the storage unit 2112 of the server 211 in accordance with the procedure of FIG. 3 is transmitted to vehicles passing through the coverage of the antenna 210. Slip information provided to a vehicle is shared by any vehicle that receives it. FIG. 4 shows an example of a procedure for the server 211 to broadcast to other vehicles. Note that transmission of slip information may be performed according to some standard. For example, it may conform to standards such as ITS. In such a project, information such as time and location may be included as a standard message data frame. In that case, the information field contained in the basic message should follow the format, and slip information unique to this embodiment, for example, should be transmitted using the free data area.

In the process of FIG. 4, control unit 2111 periodically transmits slip information, for example, to other vehicles via antenna 210, for example. However, when changing the slip information to be transmitted according to the vehicle type, a message transmitted from the vehicle is received, and slip information corresponding to the vehicle type included therein is transmitted.

In FIG. 4, first, slip information corresponding to the position information of the antenna 210, which is the transmission source, is obtained (S401). The location information is a slip information record included in the area record group for the area corresponding to the coverage of the antenna 210 serving as the transmission source. Then, referring to the slip information 50 stored in the storage unit 2112, it is determined whether the slip information record 52 is included in the area record group 51 corresponding to the coverage of the antenna 210 (S403). If the position information associated with the slip information record 52 belongs to the coverage of the antenna 210, the determination result of step S403 may be YES. If there is a corresponding record, the process branches to step S405.

Next, it is determined whether or not to perform broadcast transmission (S404). In the case of periodic transmission, since the transmission destination is unspecified, it is determined as broadcast transmission. On the other hand, when sending in response to a message from a vehicle, it is a unicast transmission targeting that vehicle. (S405). If it is determined that the vehicle is a two-wheeled vehicle, slip information indicating that the vehicle type is a two-wheeled vehicle in the relevant area record group is transmitted (S407). Slip information indicating a vehicle is transmitted (S409). In this way, by changing the type of vehicle to be transmitted according to, for example, the cause of the slip, it is possible to efficiently share necessary information in terms of time and communication resources.

On the other hand, if it is determined to be broadcast in step S404, all slip information records of the area record group corresponding to the antenna 210 are broadcast regardless of the vehicle type (S411). Thus, slip information can be provided to vehicles traveling within the service area of the antenna 410 .

●Receipt of Slip Information Next, the processing in the receiving vehicle that receives the slip information will be explained. In the vehicle that has received the slip information transmitted from the server 211 in accordance with the procedure of FIG. 4, the procedure of FIG. 6 is executed. The vehicle on the receiving side also has the configuration shown in FIG.

When the slip information is received from the server 211, the control unit 101 saves it, for example, in the format shown in FIG. 5 (S601). Then, position information is extracted from the stored slip information (S603). Then, a mark indicating that the vehicle has slipped or is expected to slip is displayed on the user interface unit 160 at the position on the map corresponding to the extracted position (S604). At this time, the vehicle type 525 is referred to. The vehicle may display slip information. At this time, not only the occurrence of slip or prediction of slip but also the cause of slip may be indicated by a mark. If you receive records indicating multiple occurrences or predictions of slips in your region, display all of them. If the map is not currently displayed, the driver may be notified of the slip information reception by voice or the like.

After that, as in steps S321 and S323 of FIG. 3, if there is a slip information record for which a predetermined time has passed since it was generated (S607-YES), it is deleted (S609). This step may be performed asynchronously with the processing up to step S605.

Effects According to the Invention of the Present Embodiment With the above configuration and processing procedure, it is possible to notify a vehicle traveling in the vicinity of a slip location or a location where there is a possibility of slipping. As a result, in the vehicle that receives the notification, the attention of the driver can be aroused, and a slip accident can be prevented. In addition, the notification destinations were classified into two-wheeled vehicles and four-wheeled vehicles according to the cause of the slip. As a result, for a two-wheeled vehicle that is more likely to slip than a four-wheeled vehicle, all of the location and cause of the slip or the location and cause of the possible slip are notified. On the other hand, for four-wheeled vehicles, which are not as prone to slip as two-wheeled vehicles, the notification is limited to slip causes that may cause slippage even for four-wheeled vehicles. Therefore, the driver who receives the notification can effectively share the information without neglecting the slip notification. Also, the amount of information to be transmitted can be reduced, saving time and communication resources. In the above embodiment, the slip information to be notified to the four-wheeled vehicle is part of the slip information to be notified to the two-wheeled vehicle, but there may be slip information to be notified only to the four-wheeled vehicle. In the case of broadcast transmission, the vehicle that receives the slip information selectively displays the slip information corresponding to the type of the own vehicle to call the driver's attention. Accordingly, it is possible to prevent the driver from becoming accustomed to the warning by displaying the slip information that is less likely to slip.

[Other embodiments]
By specifying the position of the antenna 210 that has received the state information and the like from the vehicle as the slip occurrence position, the vehicle that is the transmission source of the detection information does not need to include the position information in the detection information. In this case, the server 211 that has received the detection information may store the position information corresponding to the position of the antenna 210 in association with the slip information. Further, in the above embodiment, the information indicating the vehicle type is added when the slip information is stored, but when the slip information is transmitted, the transmission destination may be determined based on the cause thereof, for example. Further, in the above embodiment, the vehicle that transmits the detection information to the server 211 is a two-wheeled vehicle, but it may be a four-wheeled vehicle. However, in that case, it goes without saying that slips unique to two-wheeled vehicles, such as bank angles, are not detected. Also, if there is a camera that takes pictures of the road near the antenna, the image taken by that camera may be used as the external environment information.

Furthermore, in the embodiment, slip information that has passed a certain period of time is deleted, but deletion targets may be determined according to the cause of the slip. For example, if the cause is the weather, it may be deleted, but if the road surface condition is the cause, the cause may not be temporary. For example, manholes, white lines, and floating sand are unlikely to disappear in a short period of time, so even after a certain period of time has passed, slip information caused by them may not be deleted. However, since slip prediction information may be generated repeatedly each time the same position is passed, it may be deleted after a certain period of time has elapsed regardless of the cause.

The above embodiments are summarized as follows.
(1) According to the first aspect of the present invention,
Receiving means for receiving detection information indicating a state detected by the vehicle from the vehicle;
generating means for generating slip information indicating the possibility of the vehicle slipping according to the type of the vehicle, based on the received detection information and the external environment information indicating the external environment;
and transmitting means for transmitting the slip information to the vehicle.
This configuration enables vehicles to share optimum slip information according to the type of vehicle.

(2) According to the second aspect of the present invention,
The information providing device of (1),
The types of vehicles include two-wheeled vehicles and four-wheeled vehicles,
The information providing device is characterized in that the generation means generates slip information indicating the possibility of slipping due to a predetermined cause corresponding to the type of vehicle, according to the type of vehicle.
With this configuration, by defining the type of vehicle by the number of wheels, it is possible to provide appropriate information according to the target vehicle.

(3) According to the third aspect of the present invention,
The information providing device according to (1) or (2),
The information providing apparatus is provided, wherein the generating means generates the slip information in accordance with the type of the vehicle that transmitted the detection information from which the slip information was generated.
With this configuration, it is possible to provide appropriate slip information at a place where there is a possibility of slip.

(4) According to the fourth aspect of the present invention,
The information providing device according to any one of (1) to (3),
The generating means determines that a slip has occurred according to the behavior of the vehicle specified from the vehicle state included in the detection information, and when it is determined that a slip has occurred, based on the external environment An information providing device is provided that identifies the cause of the slip and generates the slip information including the slip and the cause.
With this configuration, the cause of the slip can be identified from the external environment and provided to the vehicle as slip information.

(5) According to the fifth aspect of the present invention,
(4) The information providing device according to
The state of the own vehicle includes wheel skid, engine speed, acceleration, sideslip, bank angle,
The information providing device is characterized in that the generating means determines that the vehicle has slipped based on at least one of wheel skid, engine speed, acceleration, sideslip, and bank angle.
ADVANTAGE OF THE INVENTION By this invention, based on the behavior of a vehicle, slipping can be detected with high precision.

(6) According to the sixth aspect of the present invention,
The information providing device according to any one of (1) to (5),
the receiving means also receives the external environment information from the vehicle;
The external environment information includes temperature and an external image,
The information providing device is provided, wherein the generating means identifies the cause of the slip based on at least one of the temperature and the image of the outside.
With this configuration, when a slip occurs, the cause can be specified, and the information can be shared between vehicles.

(7) According to the seventh aspect of the present invention,
(6) The information providing device according to
The information providing device, wherein the generating means identifies, as the external environment, a road surface condition including at least one of loose sand, wetness, manholes, white lines, freezing, and accumulated snow, from the temperature and the external image. is provided.
With this configuration, slip information can be estimated from the external environment and shared between vehicles.

(8) According to the eighth aspect of the present invention,
The information providing device according to any one of (1) to (7),
There is provided an information providing apparatus, wherein the generating means predicts a slip based on the external environment information and generates the slip information based on the prediction.
With this configuration, the possibility of slipping can be predicted and shared between vehicles even if it does not actually occur.

(9) According to the ninth aspect of the present invention,
The information providing device according to any one of (1) to (8),
the external environment information includes temperature and an external image;
The generating means identifies the cause of the slip based on at least one of the temperature and the external image, or predicts the slip to identify the cause, and generates the slip, the prediction of the slip, and the cause. There is provided an information providing device characterized by generating the slip information including:
With this configuration, by estimating the slip information from the external environment information, a highly accurate cause can be identified and shared.

(10) According to the tenth aspect of the present invention,
an information providing device according to any one of (1) to (9);
Information sharing including a vehicle having a display means for receiving the slip information and displaying the slip information including the type of vehicle corresponding to the type of the own vehicle out of the received slip information in the corresponding area on the map A system is provided.
With this configuration, it is possible to provide the vehicle with optimum slip information according to the type of vehicle.

(11) According to the eleventh aspect of the present invention,
A program is provided for causing a computer to function as the information providing device according to any one of (1) to (9).
With this configuration, it is possible to provide the vehicle with optimum slip information according to the type of vehicle.

(12) According to the twelfth aspect of the present invention,
receiving detection information indicating a state detected by the vehicle from the vehicle;
generating slip information indicating the possibility of the vehicle slipping based on the received detection information and external environment information indicating the external environment according to the type of the vehicle;
An information providing method is provided, characterized by transmitting the slip information to a vehicle.
With this configuration, it is possible to provide the vehicle with optimum slip information according to the type of vehicle.

The present invention is not limited to the embodiments described above, and various modifications and variations are possible without departing from the spirit and scope of the present invention. Accordingly, to publicize the scope of the invention, the following claims are included.

Claims (11)

Receiving means for receiving detection information indicating a state detected by the vehicle from the vehicle;
generating means for generating slip information indicating the possibility of the vehicle slipping according to the type of the vehicle, based on the received detection information and the external environment information indicating the external environment;
transmitting means for transmitting the slip information to the vehicle;
The types of vehicles include two-wheeled vehicles and four-wheeled vehicles,
The generating means generates, according to the type of the vehicle, slip information indicating the possibility of slipping due to a predetermined cause corresponding to the type of the vehicle,
The information providing apparatus, wherein the type of vehicle is the type of vehicle to which the slip information is transmitted by the transmitting means. The information providing device according to claim 1,
The information providing device, wherein the generating means generates the slip information in accordance with a type of a vehicle from which the detection information from which the slip information is generated is transmitted. The information providing device according to claim 1 or 2 ,
The generating means determines that a slip has occurred according to the behavior of the vehicle specified from the vehicle state included in the detection information, and when it is determined that a slip has occurred, based on the external environment An information providing device that identifies the cause of the slip and generates the slip information including the slip and the cause. The information providing device according to claim 3 ,
The state of the vehicle includes wheel skid, engine speed, acceleration, sideslip, bank angle,
The information providing device, wherein the generating means determines that the vehicle has slipped based on at least one of wheel skid, engine speed, acceleration, sideslip, and bank angle. The information providing device according to any one of claims 1 to 4 ,
the receiving means also receives the external environment information from the vehicle;
The external environment information includes temperature and an external image,
The information providing device, wherein the generating means identifies the cause of the slip based on at least one of the temperature and the image of the outside. The information providing device according to claim 5 ,
The information providing device, wherein the generating means identifies, as the external environment, a road surface condition including at least one of loose sand, wetness, manholes, white lines, freezing, and accumulated snow, from the temperature and the external image. . The information providing device according to any one of claims 1 to 6 ,
The information providing device, wherein the generating means predicts a slip based on the external environment information and generates the slip information based on the prediction. The information providing device according to any one of claims 1 to 7 ,
the external environment information includes temperature and an external image;
The generating means identifies the cause of the slip based on at least one of the temperature and the external image, or predicts the slip to identify the cause, and generates the slip, the prediction of the slip, and the cause. An information providing device that generates the slip information including: An information providing device according to any one of claims 1 to 8 ;
Information sharing including a vehicle having a display means for receiving the slip information and displaying the slip information including the type of vehicle corresponding to the type of the own vehicle out of the received slip information in the corresponding area on the map system. A program for causing a computer to function as the information providing apparatus according to any one of claims 1 to 8 . receiving detection information indicating a state detected by the vehicle from the vehicle;
generating slip information indicating the possibility of the vehicle slipping based on the received detection information and external environment information indicating the external environment according to the type of the vehicle;
transmitting the slip information to the vehicle;
The types of vehicles include two-wheeled vehicles and four-wheeled vehicles,
In generating the slip information, slip information indicating the possibility of slip due to a predetermined cause corresponding to the type of the vehicle is generated according to the type of the vehicle,
The information providing method, wherein the type of vehicle is the type of vehicle to which the slip information is transmitted.

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