Vehicle Steering System With Moving Center Of Rotation

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Solution Overview

Problem

Existing steering systems for multi-directional transport vehicles face challenges in providing intuitive and precise control during directional changes, especially when switching between steering programs, requiring significant practice and resulting in abrupt directional changes that are difficult for operators to manage.

Innovation Solution

A steering system that allows the vehicle to rotate about a center of rotation moving with a principal movement vector, enabling the direction of this center to be changed using a steering setpoint generator, and an operating element to control the vehicle's path during travel, providing new steering options and intuitive control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple steering programs are used to provide variable steering options, then adaptability is improved, but device complexity increases and ease of operation deteriorates due to requiring significant practice

Engineering Contradiction:
Improvesteering program varietyVSAvoidoperator control difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The steering system integrates multiple steering programs (all-wheel steering, diagonal steering, front/rear axle steering, carousel mode, parking mode) into a single unified system that can automatically select and switch between programs based on operational conditions, eliminating the need for operators to manually manage multiple separate steering systems and reducing the practice required to master them

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If steering programs are switched during travel to improve maneuverability, then adaptability is improved, but ease of operation deteriorates due to abrupt directional changes that are difficult to control

Engineering Contradiction:
Improvesteering program switching capabilityVSAvoiddirectional change control
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The steering system dynamically adjusts steering angles and program transitions in real-time based on vehicle motion state and operational requirements, ensuring smooth directional changes during travel by continuously optimizing the steering geometry and preventing abrupt transitions that would be difficult for operators to control

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If three steering setpoint generators are provided to enable continuous displacement of steering line and principal direction, then adaptability is improved, but device complexity increases and ease of operation deteriorates due to requiring significant practice

Engineering Contradiction:
Improvesteering control optionsVSAvoidnumber of steering setpoint generators
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The steering system combines multiple steering control functions into an integrated control architecture where the steering setpoint generator coordinates all steering operations through a unified control logic, merging the functions of controlling steering line displacement and principal direction adjustment into a single coordinated system that reduces operational complexity while maintaining full adaptability

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10160488B2Steering system for a vehicle and steering method for a vehicle
Publication Date: 2018.12.25 HUBTEX MASCHENBAU
  • US10160488B2 patent drawing
  • US10160488B2 patent drawing
  • US10160488B2 patent drawing

AI summary

A steering system for a vehicle includes at least two wheels configured to be steered independently of each another. A steering setpoint generator is configured to steer the at least two wheels according to a steering program. An operating element is configured to rotate the vehicle during travel about a center of rotation which moves with a principal movement vector. The steering program is configured so that a direction of the principal movement vector of the center of rotation can be changed with the steering setpoint generator.