Rocking Control Device for Two Front Wheels Vehicle

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Solution Overview

Problem

Current rocking control devices for two front wheels rocking vehicles lack the ability to select appropriate rocking controls based on driving conditions, limiting the vehicle's ability to rock in arbitrary directions according to weight shift only.

Innovation Solution

A rocking control device with a controller that switches between first and second rocking controls, including weight shift roll assist, dual and single effect roll damper controls, and steering roll assist, allowing for customizable rocking assistance based on vehicle speed and driver input, enabling the vehicle to self-stand at a balanced position and rock in arbitrary directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single type of rocking control is implemented, then the control system is simple, but it is not possible to choose a rocking control corresponding to different driving conditions

Engineering Contradiction:
Improverocking control selectionVSAvoidcontrol system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control system dynamically switches between different rocking control modes (first rocking control for assisted rocking, second rocking control for self-standing) based on driving conditions and driver input, allowing the system to adapt its characteristics rather than being fixed

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the first rocking control assists rocking in all directions, then it is easier to rock the vehicle, but it cannot prevent excessive roll angles

Engineering Contradiction:
Improverocking assistanceVSAvoidroll angle control
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The control system applies different characteristics to different aspects of rocking: the first rocking control provides assistance for normal rocking operations, while the second rocking control specifically addresses stability at the self-standing position, with each mode having localized functional characteristics

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If the vehicle is designed to self-stand at a balanced position, then stability is improved, but the vehicle cannot rock smoothly in arbitrary directions

Engineering Contradiction:
Improveself-standing stabilityVSAvoidrocking freedom
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system dynamically transitions between self-standing mode and free rocking mode based on driver input and driving conditions, allowing the vehicle to switch between stability-oriented and freedom-oriented characteristics as needed

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3301000B1Rocking control device for two front wheels rocking vehicle
Publication Date: 2020.06.24 HONDA MOTOR CO LTD
  • EP3301000B1 patent drawingFigure 1
  • EP3301000B1 patent drawingFigure 2
  • EP3301000B1 patent drawingFigure 3

AI summary

The rocking control device for a two front wheels rocking vehicle includes a controller (50) that executes a first rocking control (LI to L4) which assists a rocking of the two front wheels rocking vehicle (1) and a second rocking control (L5 to L7) which assists the two front wheels rocking vehicle (1) so that the two front wheels rocking vehicle (1) self-stands at a rocking balanced position where a rocking moment of the vehicle body is canceled out in a lateral direction, wherein controller (50) is configured to switch the first rocking control (LI to L4) and the second rocking control (L5 to L7) to OFF state, and is configured to operate the first rocking control (LI to L4) and the second rocking control (L5 to L7) in combination.