Lean Vehicle Behavior Controller Sensor Reduction

Solution Overview

Problem

Conventional behavior control systems for lean vehicles are not versatile as they require three acceleration sensors and three angular velocity sensors, limiting their adaptability and increasing costs.

Innovation Solution

A behavior controller that acquires acceleration information in the body up-down direction using at least one acceleration sensor, vehicle velocity information, and calculates angular velocity information using this data, reducing the need for a full inertial measurement unit and enhancing versatility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a full inertial measurement unit with three acceleration sensors and three angular velocity sensors is used, then measurement precision and control accuracy are improved, but device complexity and cost increase

Engineering Contradiction:

Improvecontrol accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential sensor components needed for behavior control - specifically one acceleration sensor and utilizes vehicle velocity information - while eliminating the need for the full six-sensor inertial measurement unit. This selective extraction maintains sufficient control accuracy while reducing system complexity and cost.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent makes the behavior control system more versatile and adaptable to different vehicle types and configurations by using a simplified sensor setup that can be universally applied. The control unit processes acceleration information and vehicle velocity information to derive angular velocity, creating a multi-functional approach that works across various lean vehicle implementations without requiring a fixed complex sensor array.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If a full inertial measurement unit with three acceleration sensors and three angular velocity sensors is used, then measurement precision is improved, but manufacturing cost increases

Engineering Contradiction:

Improvecontrol accuracyVSAvoidmanufacturing cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent extracts only the essential sensor components needed for behavior control - specifically one acceleration sensor and utilizes vehicle velocity information - while eliminating the need for the full six-sensor inertial measurement unit. This selective extraction maintains sufficient control accuracy while reducing system complexity and cost.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces expensive, complex sensor systems with simpler, more affordable alternatives - using a single acceleration sensor combined with readily available vehicle velocity information from existing vehicle systems. This substitution with more economical components reduces manufacturing cost while maintaining adequate measurement precision for safe operation.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Measurement precision

If a full inertial measurement unit with three acceleration sensors and three angular velocity sensors is used, then measurement precision is improved, but adaptability to different vehicle types decreases

Engineering Contradiction:

Improvecontrol accuracyVSAvoidgeneral versatility

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent makes the behavior control system more versatile and adaptable to different vehicle types and configurations by using a simplified sensor setup that can be universally applied. The control unit processes acceleration information and vehicle velocity information to derive angular velocity, creating a multi-functional approach that works across various lean vehicle implementations without requiring a fixed complex sensor array.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240326943A1Behavior controller, lean vehicle, and behavior control method

Publication Date: 2024.10.03 ROBERT BOSCH GMBH

AI summary

To obtain a behavior controller capable of improving general versatility of a behavior control system for a lean vehicle when compared to a conventional behavior control system. The behavior controller according to the present invention is a behavior controller that controls behavior of the lean vehicle, and includes: an acceleration information acquisition section that acquires acceleration information in a body up-down direction of the lean vehicle on the basis of output of at least one acceleration sensor; a vehicle velocity information acquisition section that acquires vehicle velocity information of the lean vehicle; and a first angular velocity information acquisition section that acquires first angular velocity information by using the acceleration information and the vehicle velocity information.