1991-09-01

A Study of Technology for Assembling Vehicle Endurance Reliability 911924

The ways in which vehicles are used in the field are continually becoming more diverse. In order to provide the optimum solution with respect to performance and weight, it is necessary to be able to assure vehicle endurance reliability with a high degree of accuracy in relation to the manner of use in each market. This situation has increased the importance of accurately quantifying the ways in which vehicles are used in the field and of designing vehicles with sufficient endurance reliability to match the usage requirements.
This report presents a “market model” by which the manner of usage in the field can be treated quantitatively using combinations of environmental factors that influence the road load, drive load and corrosion load, representing typical loads vehicles must withstand. A method for predicting the severity of each load based on quantitative data obtained with the market model is described, along with the process in which development targets for endurance reliability are set to correspond to the load predictions.

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