Research of Development of Objective Metrics of Vehicle Brake Dive Performance
The braking dive performance of a vehicle directly affects ride comfort.Currently,there is a lack of mature objective metrics for evaluating braking dive performance,and subjective evaluation is mainly relied upon in engineering development.However,subjective evaluations are easily influenced by personal preferences and skill differences,and cannot be conducted in the early stages of development when no real vehicle prototypes are available.Therefore,there is an urgent need for an objective evaluation metrics that accurately reflects the vehicle's braking dive performance and correlates well with subjective perception,while being applicable to both objective testing and simulation.This paper develops an objective metrics for braking dive performance through the process of requirement definition,solution development,evaluation,and verification.The research results show that this metrics can accurately characterize the vehicle's braking dive performance and has a strong correlation with subjective evaluations.
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