Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1997-07-11
1999-03-02
Oen, William
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
E01C 2300
Patent
active
058774149
ABSTRACT:
A method and system for generating an effective road profile for use with a computer aided vehicle design system is disclosed. The method has the steps of developing a vehicle model for a vehicle is developed and then excited with an initial drive file to produce a vehicle model response. The vehicle model response is compared to a desired response to produce an error signal, the desired response being based on vehicle dynamics data from a vehicle when driven over a road surface. A modified error signal is determined using a vehicle response model, and the modified error signal is fed into the vehicle model to produce a vehicle model response. A new error signal is iteratively determined until it is within a predetermined limit to produce a vehicle model effective road profile. Once the effective road profile has been determined, a modified vehicle model is excited with the effective road profile to produce a modified model response. The modified vehicle can thus be tested without need for a prototype. Various vehicle model parameters are graphically displayed, as are the vehicle model responses, so that a vehicle designer may interactively change the vehicle model or other parameters.
REFERENCES:
patent: 5610330 (1997-03-01), Fricke et al.
K. Lucas, G. Kafetzis and W. H. Dunn, "Standardisation of Road Profiles for Tire Coupled Road Simulators", C427/21/179, Rover Group Ltd. (No date).
S. Lu, "Standardized Road Exciting Spectrum and Vibration Analysis of Vehicles", SAE 891369 (No date).
D. Negrut and J. S. Freman, "Dynamic Tire Modelling forApplication with Vehicle Simulations Incorporating Terrain", SAE 940223 (No date).
P. R. Pierce, "Using Simulkated Road Surface Inputs for Dynamic Analysis of Heavy Truck Combination Vehicles", SAE 820096 No date.
Y. Kondo, M. Kato and H. Sugi, "Prediction Methods of Rough-road-Load Applied to Vehicle Body", SAE 900665 (No date).
T. Mimuro, T. Maemura and H. Fujii, "Development and Application of the Road Prodile Measuring System", SAE 930257 (No date).
H. Hanselmann, "Hardware-in-the-loop Simulation as a Standard Approach for Development, Customization, and Production Test", SAE 930207 (No date).
Yuting Rui, F. Saleem, J.H. Zhou, "Road Load Simulation Using Effective Road Prodile", SAE 971512 (No date).
A. Rupp and V. Grubisic and J. Neugebauer, Developmetn of a Multi-Component Wheel Force Tranducer--A Tool to Support Vehicle Design and Validation, SAE 930258 (No date).
Rui Yuting
Saleem Fayyaz
Zhou Jianhua
Ford Motor Company
Kelly David B.
Oen William
LandOfFree
Vehicle road load simulation using effective road profile does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle road load simulation using effective road profile, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle road load simulation using effective road profile will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-424753