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A Vehicle Model Architecture for Complex Vehicle System Simulation

IP.com Disclosure Number: IPCOM000009130D
Publication Date: 2002-Aug-08
Document File: 4 page(s) / 55K

Publishing Venue

The IP.com Prior Art Database

Abstract

A Vehicle Model Architecture (VMA) is defined that is applicable to large scale, vehicle system simulation and model-based development of vehicle controls. The purpose of the VMA is to enable efficient sharing and re-use of plant, actuator, sensor and controller models within and between various activities devoted to engineering of complex vehicle systems, including those pertaining to controls design and development. This would include model sharing between automotive OEM's and supplier companies.

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A Vehicle Model Architecture (VMA) is defined that is applicable to large scale, vehicle system                                     simulation and model-based development of vehicle controls. The purpose of the VMA is to                                     enable efficient sharing and re-use of plant, actuator, sensor and controller models within and                                      between various activities devoted to engineering of complex vehicle systems, including those                                      pertaining to controls design and development. This would include model sharing between                                  automotive OEM`s and supplier companies. The VMA will accommodate component/subsystem                                      models with different levels of fidelity and feature content. This gives it capability to support a                                      common modelling methodology for a broad range of systems analysis applications related to                                      vehicle development. The VMA facilitates straightforward simulation of component/subsystem                                      behaviour within the context of a complete vehicle system with minimal constraint on modellers.                                      This is accomplished by establishing minimum requirements for a top-level vehicle model structure.  The purpose of raising the patent against VMA is to protect against automotive OEM`s and supplier companies patenting/marketing VMA in the future.
A Vehicle Model Architecture for Complex Vehicle System Simulation

A Vehicle Model Architecture (VMA) is defined that is applicable to large scale, vehicle system simulation and model-based development of vehicle controls.  The purpose of the VMA is to enable efficient sharing and re-use of plant, actuator, sensor and controller models within and between various activities devoted to engineering of complex vehicle systems, including those pertaining to controls design and development.  This would include model sharing between automotive OEM’s and supplier companies.

The VMA will accommodate component/subsystem models with different levels of fidelity and feature content.  This gives it capability to support a common modelling methodology for a broad range of systems analysis applications related to vehicle development.  The VMA facilitates straightforward simulation of component/subsystem behaviour within the context of a complete vehicle system with minimal constraint on modellers.  This is accomplished by establishing minimum requirements for a top-level vehicle model structure.

The VMA is a core vehicle model (including driver and environment) consisting of modular subsystems linked together with fixed I/O connections (Figure 1).  Expansion of the model is possible by adding to, but never replacing, the fixed I/O with supplementary links.  The top-level subsystems are:

·   Driver – A subsystem that represents the human driver manoeuvre control and applies non-electrical signals to other subsystems.

·   Environment – A subsystem that provides the vehicle with external inputs dependent on its global position and velocity

·   Electrical – A subsystem that distributes electrical voltage, current and power to the whole vehicle.

·   Auxiliaries – A subsystem that applies mechanical and electrical loads to the...