Motorcycle Height Adjustment Attitude Stability Control

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Solution Overview

Problem

Existing vehicle height adjustment systems for motorcycles do not maintain the attitude of the vehicle main body during height adjustment, potentially impairing stability during travel.

Innovation Solution

A vehicle height adjustment apparatus using both front and rear wheel side relative position changing units, controlled by a unit that adjusts the relative positions of the vehicle main body and wheels to maintain a predetermined relationship between the rates of change, ensuring stability by controlling the switching valves to adjust the vehicle height in a manner that maintains the attitude of the vehicle main body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If vehicle height is adjusted by changing relative positions of front and rear wheels independently, then vehicle height adjustment is achieved, but the attitude of the vehicle main body changes, impairing stability during travel

Engineering Contradiction:

Improvevehicle heightVSAvoidattitude of vehicle main body

Core Design Contradiction:

Length of moving objectVSStability of the object's composition

Solution Approach 1:

The vehicle height adjustment system is divided into two independent control units: a front wheel side relative position changing unit and a rear wheel side relative position changing unit. Each unit independently adjusts the relative position of its respective wheel to the vehicle main body, allowing coordinated control to maintain vehicle attitude stability while achieving height adjustment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The control unit continuously monitors the relative positions of the front and rear wheels and adjusts the rate of change of each side to maintain a predetermined relationship. This feedback mechanism ensures that the vehicle main body attitude remains stable during height adjustment by dynamically balancing the front and rear wheel position changes.

Inventive Principle:

Principle #23Feedback

2Productivity

If vehicle height is adjusted quickly, then productivity is improved, but the attitude control becomes difficult, worsening stability

Engineering Contradiction:

Improvevehicle height adjustment speedVSAvoidattitude of vehicle main body

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The control unit dynamically adjusts the rate of change of the front and rear wheel side relative positions during the height adjustment process. By continuously adapting the adjustment speed of each side based on real-time position feedback, the system maintains attitude stability even during rapid height changes, resolving the contradiction between adjustment speed and attitude control.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS8894074B2Vehicle height adjustment apparatus

Publication Date: 2014.11.25 ASTEMO LTD

AI summary

A vehicle height adjustment apparatus, includes: a front wheel side changing unit capable of changing a front wheel side relative position; a rear wheel side changing unit capable of changing a rear wheel side relative position; and a control unit for adjusting a height of the main body of the vehicle by controlling the front wheel side changing unit and the rear wheel side changing unit so as to change the front wheel side relative position and the rear wheel side relative position, in which the control unit controls the front wheel side changing unit and the rear wheel side changing unit in such a manner that a rate of change of the front wheel side relative position and a rate of change of the rear wheel side relative position satisfy a predetermined relationship.