Wireless Air-Cushion Shock Absorber for Dynamic Chassis Height Control

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Solution Overview

Problem

Conventional shock absorbing systems for vehicles are difficult to quickly and easily adjust, limiting their ability to adapt to varying road conditions and affecting chassis wear and maneuverability.

Innovation Solution

An air-cushion type shock absorbing system with a central controller and drive unit that uses wireless signal transmission to control high-pressure air in air springs, allowing for individual and simultaneous adjustment of shock absorbers to lift or lower the vehicle chassis, eliminating the need for physical signal lines and enhancing assembly and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional shock absorbing systems are used, then the chassis is protected from damage, but the system cannot be adjusted quickly and easily

Engineering Contradiction:
Improveadjustment easeVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces mechanical adjustment mechanisms with an electronic control system. A control unit receives signals from switches and automatically activates solenoid valves to adjust air spring pressure, eliminating the need for manual mechanical adjustment while enabling quick and easy height adjustment through simple switch operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system automatically adjusts shock absorber height based on switch signals without requiring manual intervention in the adjustment mechanism. The control unit autonomously manages the air spring inflation and deflation processes, making the system self-adjusting and easy to operate.

Inventive Principle:
Principle #25Self-service

2Ease of manufacture

If signal lines are used for control, then the system can be controlled, but the assembly becomes more difficult

Engineering Contradiction:
Improveassembly easeVSAvoidsignal line complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the signal lines from the control system. The control unit is designed to receive control signals wirelessly or through existing vehicle electrical connections, removing the need for dedicated signal wiring between switches and the control unit, thereby simplifying assembly.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If the chassis height is fixed, then the structure is simple, but the maneuverability and chassis protection are compromised

Engineering Contradiction:
Improveheight adjustment capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a dynamic height adjustment system where the chassis height can be changed based on driving conditions. Air springs with controllable pressure allow the system to adapt between different height positions (raised for rough roads, lowered for maneuverability), transforming a static structure into a dynamic, adaptable system.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shock absorbing system serves multiple functions: it provides standard shock absorption, enables height adjustment for rough road protection, and allows height reduction for enhanced maneuverability. The same air spring mechanism handles all these functions, making the system multi-functional without requiring separate mechanisms for each function.

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

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables rapid adjustment of the vehicle's height to prevent chassis damage on rough roads and improve maneuverability, while ensuring driving safety through wireless control and real-time pressure indication, facilitating easy operation and assembly.

Implementation Method 1

a plurality of shock absorbers (30) each provided with at least one air spring (31)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

transmit the high-pressure air in the air container (12) into the respective shock absorber (30) so as to inflate the air spring (31)

Methodology Applied
Scientific EffectPneumatics: Pressurisation

Data Source

PatentUS7871081B1Air-cushion type shock absorbing system that is operated in a wireless controlling manner
Publication Date: 2011.01.18 PIN HSIU TECH CO LTD
  • US7871081B1 patent drawing
  • US7871081B1 patent drawing
  • US7871081B1 patent drawing

AI summary

A shock absorbing system includes an air container, a power source to supply a high-pressure air into the air container, a plurality of shock absorbers each provided with at least one air spring, a central controller including a plurality of control units each connected between the air container and a respective one of the shock absorbers, and a drive unit to control operation of the central controller in a wireless way. Thus, each of the shock absorbers can be lifted to lift the chassis of the car so as to prevent the chassis from being worn out or broken due to a violent hit when the car passes a rugged road and can be lowered to lower the chassis of the car so as to enhance maneuverability of the car.