Airbag Gas Tank Control for Multi-Vehicle Inflation Adaptation

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Solution Overview

Problem

Existing automotive safety systems require multiple inflators tailored to different vehicle types, leading to a complex and costly structure.

Innovation Solution

A safety system utilizing a central gas tank and a control device that stores vehicle-specific information, allowing the control device to determine and control the gas flow to fill airbags based on the vehicle information, thereby simplifying the system and reducing the need for multiple inflators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple different inflators are used for different vehicle types, then the airbag system can be adapted to different vehicle types, but the device complexity and cost increase

Engineering Contradiction:
Improveadaptation to different vehicle typesVSAvoidnumber of different inflators
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by using a single gas tank that can serve multiple vehicle types through software control. Instead of having separate inflators for each vehicle type, one gas tank with a controllable valve system can adapt to different vehicle requirements by adjusting gas flow parameters electronically, making the system multi-functional across different vehicle applications

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

Solution Approach 2:

The patent replaces the mechanical approach of having multiple physical inflators with different designs for different vehicle types with an electronic control system. The control device uses electronic signals to regulate the valve opening duration and gas flow rate, substituting mechanical diversity with electronic adaptability to achieve vehicle-type-specific performance from a single hardware platform

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

2Adaptability or versatility

If multiple different inflators are used for different vehicle types, then the airbag system can be adapted to different vehicle types, but the manufacturing cost increases

Engineering Contradiction:
Improveadaptation to different vehicle typesVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent reduces manufacturing cost by designing a universal gas tank system that can be deployed across different vehicle types. Instead of manufacturing and inventorying multiple specialized inflators, the same gas tank design with electronic control components can serve various vehicle applications, simplifying production and reducing part variety costs

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

Solution Approach 2:

The patent enables cost-effective adaptation to different vehicle types by changing control parameters (valve opening duration, gas flow rate) rather than changing physical components. The control device stores different parameter sets for different vehicle types and selects appropriate parameters electronically, avoiding the need to manufacture different hardware configurations for each vehicle type

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12280732B2Safety system for a motor vehicle, method for controlling a safety system, and control unit
Publication Date: 2025.04.22 ZF AUTOMOTIVE GERMANY GMBH
  • US12280732B2 patent drawing
  • US12280732B2 patent drawing

AI summary

A safety system (18) for an automotive vehicle (10) comprises a gas tank (20) in which pressurized gas is stored, a valve (22) associated with the gas tank (20), at least one airbag (24) connected to the valve (22) via a fluid line (30), and a control device (26). In the control device (26) vehicle information (32) is stored and the control device (26) is configured to control the valve (22) in an accident situation of the automotive vehicle (10) on the basis of the vehicle information (32) and to fill the airbag (24) with the gas stored in the gas tank (20). The invention further shows a method of controlling a safety system of an automotive vehicle and a control device.