Title:
VEHICLE BEHAVIOR ESTIMATION METHOD, VEHICLE BEHAVIOR DETECTION DEVICE, AND STEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/095562
Kind Code:
A1
Abstract:
In one embodiment of a vehicle behavior estimation method, a vehicle behavior detection method, and a steering system of the present invention, a vehicle comprises a motor that imparts steering torque to wheels through a movable member. A normative travel state of the vehicle obtained from driver's steering operation information and the actual travel state of the vehicle are compared to output a first deviation. A normative shaft force occurring at the movable member and obtained from the vehicle travel speed and the wheel steering angle and an estimated shaft force occurring at the movable member and obtained from the motor current value are compared to output a second deviation. The first and second deviations are compared to estimate the vehicle behavior. The detection accuracy of vehicle behavior can be improved as a result.
Inventors:
FUKUSHI KYOHEI (JP)
AMMA YUSUKE (JP)
KIKUCHI NORIO (JP)
AMMA YUSUKE (JP)
KIKUCHI NORIO (JP)
Application Number:
PCT/JP2023/029919
Publication Date:
May 10, 2024
Filing Date:
August 21, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
B60W40/114; B60W50/14; B62D5/04; B62D6/00
Foreign References:
| JP2006151238A | 2006-06-15 | |||
| JP2020142704A | 2020-09-10 | |||
| JP2021172146A | 2021-11-01 | |||
| JP2014133523A | 2014-07-24 | |||
| JP2006143149A | 2006-06-08 |
Attorney, Agent or Firm:
OGAWA, Moriaki et al. (JP)
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