17972590. VEHICLE BEHAVIOR ESTIMATION SYSTEM AND VEHICLE BEHAVIOR ESTIMATION METHOD simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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VEHICLE BEHAVIOR ESTIMATION SYSTEM AND VEHICLE BEHAVIOR ESTIMATION METHOD

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Yusuke Kawamura of Toyota-shi (JP)

VEHICLE BEHAVIOR ESTIMATION SYSTEM AND VEHICLE BEHAVIOR ESTIMATION METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 17972590 titled 'VEHICLE BEHAVIOR ESTIMATION SYSTEM AND VEHICLE BEHAVIOR ESTIMATION METHOD

Simplified Explanation

The patent application describes a system for estimating the behavior of a vehicle based on its yaw rate and speed. The system includes sensors to detect the yaw rate and speed of the vehicle, as well as a processor to analyze the data and perform a driving diagnosis related to steering.

  • The system includes a yaw rate sensor to detect the yaw rate of the vehicle.
  • It also includes a vehicle speed sensor to detect the speed of the vehicle.
  • The processor uses the yaw rate and vehicle speed to calculate the curvature of the vehicle's traveling locus.
  • The processor then performs a driving diagnosis based on a criterion and a curvature-related value.
  • The criterion defines the relationship between a steering angle-related value (based on the steering wheel angle of a reference vehicle) and the behavior of the reference vehicle caused by steering.
  • The curvature-related value is a value based on the calculated curvature of the vehicle's traveling locus.

Potential Applications

  • Vehicle safety systems
  • Autonomous driving systems
  • Driver assistance systems

Problems Solved

  • Accurate estimation of vehicle behavior based on yaw rate and speed
  • Diagnosis of steering-related issues in vehicles

Benefits

  • Improved vehicle safety
  • Enhanced driving experience
  • Early detection of steering-related problems


Original Abstract Submitted

A vehicle behavior estimation system includes: a yaw rate sensor that detects a yaw rate of a diagnosis target vehicle; a vehicle speed sensor that detects a vehicle speed of the diagnosis target vehicle; and a processor. The processor acquires a first curvature that is a curvature of a traveling locus of the diagnosis target vehicle based on the yaw rate and the vehicle speed, and performs a driving diagnosis related to steering of the diagnosis target vehicle based on a criterion and a curvature-related value. The criterion defines a relationship between a steering angle-related value that is a value based on a steering angle of a steering wheel of a reference vehicle that is a vehicle different from the diagnosis target vehicle and a behavior of the reference vehicle caused by steering. The curvature-related value is a value based on the first curvature.