CN-122009200-A - Information processing apparatus and information processing method

Abstract

The present invention provides a technique for improving the driving condition of a driver of a diagnostic vehicle. The information processing device is provided with a control unit that acquires predetermined data from a traveling vehicle, determines a start point at which the vehicle starts turning left at a predetermined intersection and an end point at which the vehicle ends turning left, estimates a travel track of the vehicle traveling in a section from the start point to the end point on the basis of the predetermined data, and diagnoses a driving tendency of a driver of the vehicle on the basis of a difference between the estimated travel track and an ideal track recommended at the time of turning left at the predetermined intersection.

Inventors

• Kushiyuki Yukiya
• MUTO MASATO

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260512

Application Date

20251110

Priority Date

20241112

Claims (6)

1. 1. An information processing apparatus, comprising: The control unit acquires predetermined data measured by a sensor mounted on a vehicle while the vehicle is traveling, determines a start point at which the vehicle starts turning left at a predetermined intersection and an end point at which the vehicle ends turning left at the intersection based on the predetermined data, estimates a travel trajectory of the vehicle traveling in a section from the start point to the end point based on the predetermined data, and diagnoses a driving tendency of a driver of the vehicle based on a difference between the estimated travel trajectory and an ideal trajectory recommended when the vehicle turns left at the predetermined intersection.
2. 2. An information processing apparatus, comprising: The control unit acquires predetermined data from a traveling vehicle, determines a start point at which the vehicle starts turning left at a predetermined intersection and an end point at which the vehicle ends turning left at the intersection based on the predetermined data, estimates a travel trajectory of the vehicle traveling in a section from the start point to the end point based on the predetermined data, and diagnoses a driving tendency of a driver of the vehicle based on a difference between the estimated travel trajectory and an ideal trajectory recommended when the vehicle turns left at the predetermined intersection.
3. 3. The information processing apparatus according to claim 2, wherein, The prescribed data includes a GPS time stamp of the vehicle, a vehicle speed, a steering angle, a yaw rate, and a turn signal.
4. 4. An information processing apparatus according to claim 3, wherein, The control unit determines the start point based on the turn signal and the yaw rate included in the predetermined data, determines the end point based on the yaw rate included in the predetermined data, and estimates the travel locus based on the vehicle speed and the yaw rate included in the predetermined data.
5. 5. An information processing apparatus according to claim 3, wherein, The difference is a small amount of turning, The control unit extracts a1 st coordinate point at which the vehicle speed is the lowest among the coordinate points at which the yaw rate is the highest on the ideal trajectory and a 2 nd coordinate point at which the vehicle speed is the lowest among the coordinate points at which the yaw rate is the highest on the traveling trajectory, derives a distance from the extracted 1 st coordinate point to the 2 nd coordinate point as the small turning amount, and diagnoses a driving tendency of a driver of the vehicle based on the derived small turning amount.
6. 6. An information processing method, characterized in that, The following processing is performed by the information processing apparatus: Acquiring predetermined data from a traveling vehicle; determining a start point of the left turn of the vehicle at the determined intersection and an end point of the left turn of the vehicle at the determined intersection according to the predetermined data; estimating a travel locus of the vehicle traveling in a section from the start point to the end point based on the prescribed data, and And diagnosing a driving tendency of a driver of the vehicle based on a difference between the estimated travel trajectory and an ideal trajectory recommended when turning left the predetermined intersection.

Description

Information processing apparatus and information processing method Technical Field The present invention relates to an information processing apparatus and an information processing method. Background Conventionally, a technique for diagnosing a driving tendency of a driver of a vehicle is known. For example, patent document 1 discloses a technique of diagnosing driving of a vehicle by comparing an ideal trajectory corresponding to a road shape on which the vehicle is traveling with a travel trajectory at the time of actual driving. Patent document 1 Japanese patent application laid-open No. 2014-194620 Disclosure of Invention When the driver makes a left-hand intersection, the driver sometimes does not understand the proper travel path, and makes a small turn or makes a large turn. However, patent document 1 does not disclose a diagnostic index that enables the driver to objectively see the driving tendency when he/she turns left. Therefore, there is room for improvement in a technique for diagnosing the driving condition of the driver of the vehicle. In view of such circumstances, an object of the present invention is to improve a technique of diagnosing a driving condition of a driver of a vehicle. An information processing device according to an embodiment of the present invention includes a control unit that acquires predetermined data measured by a sensor mounted on a vehicle while the vehicle is traveling, determines a start point at which the vehicle starts a left turn at a predetermined intersection and an end point at which the vehicle ends the left turn from the predetermined data, estimates a travel track of the vehicle traveling in a section from the start point to the end point from the predetermined data, and diagnoses a driving tendency of a driver of the vehicle based on a difference between the estimated travel track and an ideal track recommended when the vehicle turns left at the predetermined intersection. An information processing device according to an embodiment of the present invention includes a control unit that acquires predetermined data from a traveling vehicle, determines a start point at which the vehicle starts turning left at a predetermined intersection and an end point at which the vehicle ends turning left at the intersection based on the predetermined data, estimates a travel trajectory of the vehicle traveling in a section from the start point to the end point based on the predetermined data, and diagnoses a driving tendency of a driver of the vehicle based on a difference between the estimated travel trajectory and an ideal trajectory recommended when turning left at the predetermined intersection. An information processing method according to an embodiment of the present invention is configured to acquire predetermined data from a traveling vehicle, determine a start point at which the vehicle starts turning left at a predetermined intersection and an end point at which the vehicle ends turning left based on the predetermined data, estimate a travel locus of the vehicle traveling in a section from the start point to the end point based on the predetermined data, and diagnose a driving tendency of a driver of the vehicle based on a difference between the estimated travel locus and an ideal locus recommended when turning left at the predetermined intersection. Effects of the invention According to an embodiment of the present invention, a technique of diagnosing a driving condition of a driver of a vehicle is improved. Drawings Fig. 1 is a block diagram showing a schematic configuration example of a system according to an embodiment of the present invention. Fig. 2 is a flowchart showing the operation of the information processing apparatus. Fig. 3 is a diagram for normalizing a travel track and an ideal track of a vehicle when the vehicle turns left at an intersection. Detailed Description (Summary of the embodiments) An outline of a system 1 according to an embodiment of the present invention will be described with reference to fig. 1. The system 1 includes a vehicle 10, an information processing device 20, and a terminal device 30. The vehicle 10, the information processing device 20, and the terminal device 30 are communicably connected to a network 2 including the internet, a mobile communication network, and the like, for example. The vehicle 10 is, for example, an automobile, but is not limited thereto, and may be any vehicle. The automobile is, but not limited to, a gasoline automobile, a Battery electric automobile (Battery ELECTRIC VEHICLE: BEV), a Hybrid electric automobile (Hybrid ELECTRIC VEHICLE: HEV), a Plug-in Hybrid ELECTRIC VEHICLE: PHEV), a Fuel cell electric automobile (Fuel CELL ELECTRIC VEHICLE: FCEV), or the like. The information processing device 20 is a computer such as a server device. The information processing device 20 can communicate with the vehicle 10 and the terminal device 30 via the network 2. The terminal device 30 is a smart phone h