Abstract
In this paper, we address the development of an integrated sensing system for the airbag deployment decision in an intelligent vehicle with focus on passenger and driver airbags in vehicles. The innovation provides a cost-effective system for deploying an airbag whilst maintaining precise, reliable and effective operation; in addition, it can be easily retrofitted into any vehicle with built-in airbag control. A number of sensing systems such as weight, vision and vehicle crash have been developed. The decision of several sensing systems are fused together to provide an exact airbag deployment decision. A LabWindow/CVI in the C interface program is developed for prototype implementation. The sensing systems are developed and integrated into a prototype platform. The performance of the prototype system is evaluated through several test runs. The results prove that the airbag deployment decision is unique, robust and intelligent for vehicle application.
Highlights
The term “intelligent vehicle” does not literally mean that intelligence resides inside the vehicle
An intelligent vehicle operates to ensure the safety and comfort level of the occupant in the vehicle.[1] because of the high expectations for control and safety, an efficient sensing system must be developed to determine the airbag deployment decision in an intelligent vehicle.[2]. This increased concern for the deployment decision has resulted in the design of an accurate integrated sensing system that involves occupant-weight- and positionsensing technology, detection and classification of an impending crash or unsafe driving conditions, and driver warnings to improve the driver’s ability to control the vehicle and prevent an accident.[3,4]
A vehicle occupant position detector and an airbag control system are described, in which the controller between the airbag deployment mechanism and the sensors calculates the centre of gravity of the seat occupant, the weight of the occupant and seat inclination angle.[5]. Another method to control passenger side airbag deployment has been developed using a seat cushion weight sensor to determine the mass of the seat occupant to classify the occupant size.[6]. A smart airbag system, including a sensor mechanism that controls deployment to protect an occupant in a crash, has been developed to control the flow of gas into or out of the airbag to optimize the injury protection capability of the airbag
Summary
The term “intelligent vehicle” does not literally mean that intelligence resides inside the vehicle. An intelligent vehicle operates to ensure the safety and comfort level of the occupant in the vehicle.[1] because of the high expectations for control and safety, an efficient sensing system must be developed to determine the airbag deployment decision in an intelligent vehicle.[2] This increased concern for the deployment decision has resulted in the design of an accurate integrated sensing system that involves occupant-weight- and positionsensing technology, detection and classification of an impending crash or unsafe driving conditions, and driver warnings to improve the driver’s ability to control the vehicle and prevent an accident.[3,4]. We integrated several sensing systems to deploy an airbag using occupant weight, vision and a vehicle crash-sensing system The objective of this development is to integrate the sensing system to analyze the roles of occupant detection, classification and position, vehicle crash detection and crash severity analysis in airbag deployment. The experimental results provide a cost-effective, precise and reliable alternative to the current systems, in addition to being retrofitted into vehicles, which suggests a more robust airbag deployment decision
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