公开(公告)号：US09828023B2

公开(公告)日：2017-11-28

申请号：US15081483

申请日：2016-03-25

Applicant: HONDA MOTOR CO., LTD.

Inventor： Ryota Mose ,  Norifumi Tamura ,  Yoshinobu Mukai ,  Kyoji Hamamoto ,  Hironori Aoyagi

IPC: B62D6/00 ,  B62D5/04

CPC classification number: B62D5/0463 ,  B62D5/049

Abstract: An electric power steering device includes a steering angle reference yaw rate calculation section that calculates a steering angle reference yaw rate by using a speed of a vehicle and a steering angle of a steering wheel, a torque estimation device that estimates a self-aligning torque (SAT) generated in a turning wheel of the vehicle on the basis of a measured yaw rate or the steering angle reference yaw rate, the absolute value of which is smaller, and the speed of the vehicle, and estimates a required assist torque on the basis of the estimated SAT, and an abnormality determination section that determines whether or not a steering torque sensor is abnormal. If the steering torque sensor is abnormal, an EPS control device controls drive of an assist motor using the required assist torque estimated by the torque estimation device, in place of a steering torque.

公开(公告)号：US20160288824A1

公开(公告)日：2016-10-06

申请号：US15081483

申请日：2016-03-25

Applicant: HONDA MOTOR CO., LTD.

Inventor： Ryota Mose ,  Norifumi Tamura ,  Yoshinobu Mukai ,  Kyoji Hamamoto ,  Hironori Aoyagi

IPC: B62D5/04

CPC classification number: B62D5/0463 ,  B62D5/049

Abstract: An electric power steering device includes a steering angle reference yaw rate calculation section that calculates a steering angle reference yaw rate by using a speed of a vehicle and a steering angle of a steering wheel, a torque estimation device that estimates a self-aligning torque (SAT) generated in a turning wheel of the vehicle on the basis of a measured yaw rate or the steering angle reference yaw rate, the absolute value of which is smaller, and the speed of the vehicle, and estimates a required assist torque on the basis of the estimated SAT, and an abnormality determination section that determines whether or not a steering torque sensor is abnormal. If the steering torque sensor is abnormal, an EPS control device controls drive of an assist motor using the required assist torque estimated by the torque estimation device, in place of a steering torque.

Abstract translation: 电动助力转向装置包括：转向角基准横摆率计算部，其通过使用车辆的速度和方向盘的转向角来计算转向角基准横摆率;估计自对准转矩的转矩估计装置（ SAT）基于测量的横摆角速度或其绝对值较小的转向角参考横摆角速度和车辆的速度在车辆的转向车轮中产生，并且基于所估计的所需辅助转矩 的异常判定部，判定转向转矩传感器是否异常的异常判定部。 如果转向转矩传感器异常，则EPS控制装置代替转向转矩，使用由转矩估计装置估计的所需辅助转矩来控制辅助电动机的驱动。

公开(公告)号：US20220250674A1

公开(公告)日：2022-08-11

申请号：US17592715

申请日：2022-02-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kyoji Hamamoto ,  Takashi Kuribayashi ,  Seigo Murashige ,  Hirohito Ide ,  Hideki Imafuku ,  Ryoto Teranishi ,  Ryuhei Miyoshi ,  Yuki Mano

IPC: B62D5/04 ,  H02J9/06 ,  H02J7/00

Abstract: Provided is an electric power steering device including: a motor; a drive device that supplies the motor with three-phase alternating current electric power; and a control device that controls the drive device, in which the control device is connected to a first power supply path that supplies power to the control device not via an ignition switch and a second power supply path that supplies power to the control device via the ignition switch, and the control device, in a case of detecting a failing of the first power supply path, operates with power supplied from the second power supply path and makes the motor generate an electromagnetic brake.