公开(公告)号：US20240278831A1

公开(公告)日：2024-08-22

申请号：US18441728

申请日：2024-02-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryo MATSUMOTO ,  Jiro miyawaki

IPC: B62D15/02

CPC classification number: B62D15/025

Abstract: A travel control device for a vehicle includes an object information acquisition device, an automatic steering device, and an electronic control unit. The electronic control unit is configured to gradually decrease a target correction quantity of a steering angle when the electronic control unit determines that travel control needs to be ended. The electronic control unit is configured to change a degree of decrease of the target correction quantity to different degrees based on a magnitude relationship between a target control quantity and an actual control quantity closest to a time point at which it is determined that the travel control needs to be ended.

公开(公告)号：US20210327175A1

公开(公告)日：2021-10-21

申请号：US17172184

申请日：2021-02-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shugen YAMAMURA ,  Satoshi MIYAKE ,  Masayuki OKAMOTO ,  Ryo MATSUMOTO ,  Naritomo MIURA

IPC: G07C5/08 ,  G07C5/00

Abstract: In an abnormal noise evaluation system, running noise of a vehicle is acquired, and the running noise is analyzed to generate analysis data. A rotational order component of the running noise of the vehicle is then extracted from the analysis data, and features for each rotational order of the running noise of the vehicle is generated based on the extracted rotational order component. Subsequently, a learning model is generated using as training data a combination of the features for each rotational order generated for a learning object that is of the same type as an object to be evaluated and an evaluation result given in advance to the learning object. Whether there is abnormal noise from the object to be evaluated is evaluated by applying the features for each rotational order generated for the object to be evaluated to the learning model, and an evaluation result is output.

公开(公告)号：US20230286578A1

公开(公告)日：2023-09-14

申请号：US18091685

申请日：2022-12-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuji WATARI ,  Ryo MATSUMOTO ,  Ryo IRIE

IPC: B62D6/10 ,  B62D5/04

CPC classification number: B62D6/10 ,  B62D5/0424

Abstract: A vehicle includes a steering device, a torque sensor, and an electronic control unit. The steering device includes a rack shaft, a steering shaft, and a turning actuator including an electric motor connected to the rack shaft or the steering shaft via a motion conversion mechanism. The torque sensor is configured to detect a steering torque by a driver, the torque sensor being attached to the steering shaft. The electronic control unit is configured to switch from turning of the wheels by an automatic steering control to turning of the wheels based on at least a steering operation by the driver in a case where a torque detected by the torque sensor exceeds a torque threshold value during execution of the automatic steering control of the wheels. The torque threshold value is changed in accordance with a temperature of the motion conversion mechanism.