18364688. VEHICLE BEHAVIOR CONTROL METHOD AND VEHICLE BEHAVIOR CONTROL DEVICE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

VEHICLE BEHAVIOR CONTROL METHOD AND VEHICLE BEHAVIOR CONTROL DEVICE

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Hisanori Mitsumoto of Hadano-shi (JP)

Sota Ukai of Susono-shi (JP)

VEHICLE BEHAVIOR CONTROL METHOD AND VEHICLE BEHAVIOR CONTROL DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18364688 titled 'VEHICLE BEHAVIOR CONTROL METHOD AND VEHICLE BEHAVIOR CONTROL DEVICE

Simplified Explanation

The patent application describes a system for independently controlling the longitudinal force acting on each wheel of a vehicle based on the difference in longitudinal force between the left and right wheels. Here are some key points from the abstract:

• Difference in longitudinal force between left and right wheels is obtained.
• Correction amount of longitudinal force for each wheel is calculated based on the difference.
• Each wheel is independently controlled based on the calculated correction amount.
• Speed increasing ratio of front wheel steering angle is calculated based on a control map and input parameters.
• Yaw moment around the weighted center of the vehicle is calculated based on the speed increasing ratio and steering wheel angle.
• Difference in longitudinal force is calculated based on the calculated yaw moment.

1. 1. 1. Potential Applications:

- Autonomous driving systems - Vehicle stability control systems

1. 1. 1. Problems Solved:

- Improving vehicle handling and stability - Enhancing overall driving experience

1. 1. 1. Benefits:

- Increased safety on the road - Better control over vehicle dynamics

1. 1. 1. Potential Commercial Applications:
         1. Optimizing Vehicle Performance with Independent Wheel Control Technology

1. 1. 1. Possible Prior Art:

There are existing systems for controlling individual wheel speeds in vehicles, but the specific method described in this patent application for independently controlling longitudinal forces based on differences between left and right wheels appears to be a novel approach.

1. 1. 1. Unanswered Questions:
         1. How does this system handle varying road conditions and surfaces?

The patent application does not provide specific details on how the system adapts to different road conditions and surfaces to ensure optimal performance and safety.

1. 1. 1. 1. What impact does this technology have on overall fuel efficiency?

The abstract does not mention how this system may affect the fuel efficiency of a vehicle, which could be an important consideration for potential users.

Original Abstract Submitted

A difference in a longitudinal force indicating a difference between the longitudinal force acting on left and right wheels is obtained. A correction amount of the longitudinal force acting on each wheel is calculated based on the difference in the longitudinal force, and each wheel is independently controlled. When the difference in the longitudinal force is obtained, a speed increasing ratio of a front wheel steering angle for changing an overall steering ratio is calculated based on a preset control map and an input parameter including a vehicle speed and a lateral acceleration or the vehicle speed and steering wheel angle. A yaw moment to be generated around a weighted center of the vehicle is calculated based on the speed increasing ratio and a steering wheel angle of the vehicle as the input parameter. The difference in the longitudinal force is then calculated based on this yaw moment.