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EP-4737292-A1 - STATE ESTIMATING SYSTEM AND STATE ESTIMATING METHOD

EP4737292A1EP 4737292 A1EP4737292 A1EP 4737292A1EP-4737292-A1

Abstract

A state estimating system (1) includes an obtainer (41) and an estimator (42). The obtainer (41) obtains vibration information about vibration of a vehicle that is either a human-powered vehicle or an electric bicycle (2). The estimator (42) estimates a state of the vehicle based on the vibration information obtained by the obtainer (41). When the vehicle is determined to be in an abnormal state, the estimator (42) outputs abnormal state information indicating that the vehicle has an abnormality. When the vehicle is determined to be in a normal state, the estimator (42) outputs normal state information indicating that the vehicle has no abnormality.

Inventors

  • KANAMORI, Keita

Assignees

  • Panasonic Intellectual Property Management Co., Ltd.

Dates

Publication Date
20260506
Application Date
20240606

Claims (8)

  1. A state estimating system comprising: an obtainer that obtains vibration information about vibration of a vehicle that is either a human-powered vehicle or an electric bicycle; and an estimator that estimates a state of the vehicle based on the vibration information obtained by the obtainer, wherein the estimator: outputs, when the vehicle is determined to be in an abnormal state, abnormal state information indicating that the vehicle has an abnormality, and outputs, when the vehicle is determined to be in a normal state, normal state information indicating that the vehicle has no abnormality.
  2. The state estimating system according to claim 1, wherein the estimator estimates, as the state of the vehicle, a state of a component included in the vehicle.
  3. The state estimating system according to claim 2, wherein the component is a component that belongs to a rotating mechanism that rotates as the vehicle travels.
  4. The state estimating system according to claim 2, wherein the component is a component that does not belong to a rotating mechanism that rotates as the vehicle travels.
  5. The state estimating system according to any one of claims 1 to 4, wherein the obtainer obtains the vibration information by detecting at least one of an acceleration of the vehicle, an angular velocity of the vehicle, a speed of the vehicle, a rotational speed of a wheel of the vehicle, torque of an electric motor included in the vehicle, power consumed by a battery included in the vehicle, or a strain, a pressure, heat, a sound, or an electromagnetic wave generated in the vehicle.
  6. The state estimating system according to any one of claims 1 to 4, further comprising: one or more sensors provided in at least one of a drive mechanism that drives the wheel of the vehicle, an electrical component included in the vehicle, or a frame, wherein the obtainer obtains the vibration information from the one or more sensors.
  7. The state estimating system according to any one of claims 1 to 4, further comprising: an informer that informs an external device about at least one of the abnormal state information or the normal state information outputted by the estimator.
  8. A state estimating method comprising: obtaining vibration information about vibration of a vehicle that is either a human-powered vehicle or an electric bicycle; and estimating a state of the vehicle based on the vibration information obtained, wherein when the vehicle is determined to be in an abnormal state, abnormal state information indicating that the vehicle has an abnormality is outputted, and when the vehicle is determined to be in a normal state, normal state information indicating that the vehicle has no abnormality is outputted.

Description

[Technical Field] The present disclosure relates to a state estimating system and a state estimating method for estimating a state of a vehicle that is either a human-powered vehicle or an electric bicycle. [Background Art] Patent Literature (PTL) 1 discloses a system for detecting a state of a vehicle body. The system for detecting a state of a vehicle body includes a sensor and an analyzer. The sensor obtains vehicle body travel information, which is information about travel of a vehicle body. The analyzer obtains the vehicle body travel information from the sensor, and estimates, based on the obtained vehicle body travel information, a state of the vehicle body indirectly related to the vehicle body travel information. [Citation List] [Patent Literature] [PTL 1] WO2022/071228 [Summary of Invention] [Technical Problem] An object of the present disclosure is to provide a state estimating system and a state estimating method capable of easily eliminating the need for a sensor for directly detecting a state of a vehicle. [Solution to Problem] In order to achieve the object described above, a state estimating system according to an aspect of the present disclosure includes an obtainer and an estimator. The obtainer obtains vibration information about vibration of a vehicle that is either a human-powered vehicle or an electric bicycle. The estimator estimates a state of the vehicle based on the vibration information obtained by the obtainer. When the vehicle is determined to be in an abnormal state, the estimator outputs abnormal state information indicating that the vehicle has an abnormality. When the vehicle is determined to be in a normal state, the estimator outputs normal state information indicating that the vehicle has no abnormality. A state estimating method according to an aspect of the present disclosure includes: obtaining vibration information about vibration of a vehicle that is either a human-powered vehicle or an electric bicycle; and estimating a state of the vehicle based on the vibration information obtained. In the state estimating method, when the vehicle is determined to be in an abnormal state, abnormal state information indicating that the vehicle has an abnormality is outputted. When the vehicle is determined to be in a normal state, normal state information indicating that the vehicle has no abnormality is outputted. [Advantageous Effects of Invention] The state estimating system, etc., according to the present disclosure provide an advantage of being able to easily eliminate the need for the sensor for directly detecting the state of the vehicle. [Brief Description of Drawings] [FIG. 1] FIG. 1 is a schematic diagram illustrating a vehicle sharing system according to an embodiment.[FIG. 2] FIG. 2 is a side view illustrating an electric bicycle according to the embodiment.[FIG. 3] FIG. 3 is a block diagram illustrating the electric bicycle according to the embodiment.[FIG. 4] FIG. 4 is a flowchart showing an example of operations of a state estimating system according to the embodiment. [Description of Embodiments] An embodiment of the present disclosure will be described below in detail using the drawings. Note that the embodiment described below shows a specific example of the present disclosure. Thus, the numerical values, shapes, materials, elements, the arrangement and connection of the elements, steps, the processing order of the steps, etc. shown in the following embodiment are mere examples, and therefore do not limit the scope of the present disclosure. Among the elements in the following embodiment, those not recited in any one of the independent claims are therefore described as optional elements. Each of the figures is a schematic diagram and is not necessarily drawn in a strict sense. Therefore, the scale, for example, is not necessarily the same in these figures. In addition, substantially the same configurations are denoted by the same reference numeral throughout the figures, and redundant descriptions will be omitted or simplified. A state estimating system and a state estimating method according to an embodiment will be described below. [Embodiment] (Configuration) A configuration of vehicle sharing system 100 will be described first with reference to FIG. 1. FIG. 1 is a schematic diagram illustrating vehicle sharing system 100 according to the embodiment. As shown in FIG. 1, in vehicle sharing system 100, a service provider that provides, for example, vehicle rental services can, for example, rent a vehicle to a user who wishes to use the vehicle. Vehicle sharing system 100 manages, for example, states of vehicles, specifications, vehicle types, and product numbers. In addition, when renting a vehicle to a user, vehicle sharing system 100 manages, for example, the time of commencement of use, the time of termination of use, the location of the commencement of use, and the identification information of the user. In the embodiment, vehicle sharing system 100 provides,