18602619. MOTOR CONTROL DEVICE FOR STEER-BY-WIRE STEERING DEVICE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

MOTOR CONTROL DEVICE FOR STEER-BY-WIRE STEERING DEVICE

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Kenji Shibata of Nagoya-shi (JP)

Koichi Nishimura of Toyota-shi (JP)

Takahito Ishino of Numazu-shi (JP)

Ryo Yamazaki of Okazaki-shi (JP)

Hiroyasu Inoue of Kashihara-shi (JP)

Isao Namikawa of Okazaki-shi (JP)

Nobuyori Nakajima of Kariya-city (JP)

Hiroki Tomizawa of Kariya-city (JP)

Takuya Maegawa of Kariya-city (JP)

MOTOR CONTROL DEVICE FOR STEER-BY-WIRE STEERING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18602619 titled 'MOTOR CONTROL DEVICE FOR STEER-BY-WIRE STEERING DEVICE

Simplified Explanation: The patent application describes a motor control device for a steer-by-wire steering system with a redundant system that calculates two turning current command values. A third processor selects the appropriate command value based on divergence and rapid steering operation.

Key Features and Innovation:

• Redundant system with two turning current command calculations.
• Selection of command value based on divergence of the two calculations.
• Priority given to the first turning current command value during rapid steering operations.

Potential Applications: This technology can be applied in steer-by-wire steering systems in vehicles, particularly those requiring high reliability and safety standards.

Problems Solved:

• Ensures accurate and reliable steering control.
• Addresses potential issues with divergent command values in redundant systems.

Benefits:

• Enhanced safety in steering operations.
• Improved reliability in steer-by-wire systems.
• Optimal command value selection for different steering scenarios.

Commercial Applications: The technology can be utilized in automotive industry for advanced steer-by-wire systems in vehicles, autonomous vehicles, and other applications requiring precise steering control.

Prior Art: Prior art related to this technology may include research on redundant systems in automotive control devices and steer-by-wire steering systems.

Frequently Updated Research: Researchers may be exploring advancements in redundant systems for motor control devices and steer-by-wire steering systems to enhance safety and reliability.

Questions about Steer-by-Wire Steering Systems: 1. What are the key challenges in implementing redundant systems in steer-by-wire steering devices? 2. How does the selection of turning current command values impact the overall performance of a steer-by-wire system?

Original Abstract Submitted

In a motor control device for a steer-by-wire steering device, the motor control device having a redundant system consisting of two systems, a first turning current command value is calculated in a first system, and a second turning current command value is calculated in a second system. A third processor outputs the first turning current command value when the two current command values are not divergent and outputs the second turning current command value when the two current command values are divergent. When a determination of a rapid steering operation is made, the third processor outputs the first turning current command value regardless of whether or not the two current command values are divergent.