CN-121999546-A - Vehicle information storage system

Abstract

The invention provides a vehicle information storage system capable of improving the convenience of vehicle information utilization and realizing the light weight of a device mounted on a vehicle. The vehicle information storage system of the present invention includes a server that stores vehicle information and performs predetermined information processing and outputs the vehicle information, the server includes a neural network including an input layer configured to acquire the vehicle information transmitted from a controller of a vehicle, an intermediate layer configured to perform at least a process of setting a weight or a frequency of the vehicle information acquired by the input layer, and an output layer configured to classify and output the vehicle information processed by the intermediate layer according to a predetermined standard, and the server is further provided with an output request section that changes the weight or the frequency of the intermediate layer.

Inventors

• MURAYAMA YASUO

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260508

Application Date

20251021

Priority Date

20241105

Claims (3)

1. 1. A vehicle information storage system in which a controller that transmits vehicle information obtained by a sensor is mounted on a vehicle, the vehicle information storage system including a server that stores the vehicle information transmitted from the controller and performs predetermined information processing and outputs the stored vehicle information, The server is provided with a neural network having an input layer, an intermediate layer and an output layer, The input layer is configured to acquire the vehicle information transmitted from the controller of the vehicle, The intermediate layer is configured to perform a process of setting at least a weight or a frequency of the vehicle information acquired by the input layer, The output layer is configured to classify and output the vehicle information processed by the intermediate layer according to a predetermined reference, The server is further provided with an output requesting unit for changing the weighting or frequency of the middle layer.
2. 2. The vehicle information storage system of claim 1, wherein, The output request part is connected with the server through OTA.
3. 3. The vehicle information storage system of claim 1 or 2, wherein, The output requesting section is provided to the controller.

Description

Vehicle information storage system Technical Field The present invention relates to a system for storing information related to a vehicle, such as an operation history and a diagnosis history of the vehicle. Background The vehicle is subjected to mechanical, thermal and chemical influences during running, with a consequent fatigue or reduced durability. Further, unavoidable abnormalities may occur. In order to ensure stable running of the vehicle, the vehicle has a self-diagnosis function, and the diagnosis result is taken out to the outside for maintenance at regular intervals or when an abnormality occurs. The vehicle information that is recorded or stored in advance (hereinafter, simply referred to as storage.) is preferably various and large in quantity. On the other hand, the information to be stored includes information on temporal changes such as on/off of the engine and opening/closing of the door, steering angle, amount of depression of the accelerator pedal or the brake pedal, information on continuous changes such as rotation speed or temperature of the engine, information on temporal and important (or specific) information such as content, date and time when a certain event occurs, and the like. That is, the stored information is diverse and large. In contrast, the storage capacity is limited. For this reason, for example, in the apparatus described in patent document 1, specific processing is performed on predetermined information in order to avoid disappearance. That is, in a limited storage capacity, old information is often covered with new information in time series, but if so, there is a possibility that information of high importance or effectiveness disappears. Therefore, in the apparatus described in patent document 1, a series of information that is continuously generated is subjected to processing of converting it into one piece of operation information. Patent document 1 Japanese patent application laid-open No. 2013-086583 Disclosure of Invention As in the device described in patent document 1, if a series of continuous information is converted into one piece of information, the continuous large information becomes one piece of small information, and therefore the possibility that the series of continuous information is covered and disappears becomes low. Further, according to the device described in patent document 1, the amount or type of information stored can be increased. In this way, the validity of the stored information can be considered to be improved, and the information demand is diversified. However, in the device described in patent document 1, when the stored information is taken out (output), the stored information is output in an original stored state, and the use mode of the stored information is not considered, so that even if the information is improved in terms of storage, there is still room for improvement in terms of use of the information. That is, the stored information can include not only information related to a failure or abnormality but also various kinds of information such as a temporal change in an operation state, a maximum value, a minimum value, and the like, and thus can be used not only for analysis of a failure but also as information for design change or improvement and information related to a demand on the market. In this case, if information is output in the content set in the design stage of the storage device, there is a possibility that convenience of information such as output which is biased in failure analysis is poor. On the other hand, it is conceivable to increase the storage capacity of an information storage device mounted on a vehicle and to provide the information storage device with a function for enabling output according to the need. However, in such a configuration, an arithmetic device for processing a large amount of information is required, and a communication speed in a vehicle is required to be increased, so that not only an information storage device but also a cost of a vehicle in which the device is mounted may be increased. The present invention has been made in view of the above-described technical problems, and an object of the present invention is to provide a vehicle information storage system that can store a large amount of vehicle information and can diversify the output of the stored vehicle information, thereby improving the convenience of use of the vehicle information and reducing the weight of devices mounted on a vehicle. In order to achieve the above object, the present invention provides a vehicle information storage system in which a controller that transmits vehicle information obtained by a sensor is mounted on a vehicle, the vehicle information storage system including a server that stores the vehicle information transmitted from the controller and performs predetermined information processing and outputs the vehicle information, the vehicle information storage system including a neural network h