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首页> 外文期刊>SAE International Journal of Passenger Cars - Mechanical Systems >Evaluation of a State of the Art Hydraulic Brake System with Regard to Future Requirements
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Evaluation of a State of the Art Hydraulic Brake System with Regard to Future Requirements

机译：根据未来需求评估先进的液压制动系统

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摘要

New technologies like alternative power trains and driver assistance systems have a big impact on brake system development. Most of the development work aims at the improvement of the actuation and modulation components of the brake system. The basic hydraulic network remained nearly the same over decades and still has to meet these new requirements. Previous papers have focused mainly on studying the behavior of single components, like for example the brake hose fluid consumption in detail. Other papers studied the complete system but simplified it extremely, so that some relevant effects are neglected. In this work, one focus is to study the influence of single relevant components, like the hydraulic unit and the hoses on the overall system performance. For this measurements with a complete hydraulic brake system, including a state of the art electromechanical brake booster and single component measurements for identification, are conducted. A variety of ambient temperatures, from low to high, is included in this study by using a temperature chamber for measurements. The dynamic pressure propagation through the system is studied, as it is crucial for future high dynamic brake systems. Besides that, key figures which not only focus on the dynamics but also on the efficiency of the system are introduced. As braking maneuvers are often short term and extremely dynamic processes, measurement equipment, like flow meters, can hardly be integrated without affecting the system behavior significantly. Therefore simulation models with different degrees of component detail are generated from an ideal system to the complete detailed system to get a better understanding of the relevant components and their effects on the before introduced key figures. This work could support developers to get a better understanding of the effects of certain components on the system overall performance and how to improve them to meet future requirements.
机译：替代动力总成和驾驶员辅助系统等新技术对制动系统的开发产生了重大影响。大多数开发工作旨在改善制动系统的致动和调节组件。几十年来，基本液压网络几乎保持不变，并且仍然必须满足这些新要求。先前的论文主要集中在研究单个部件的性能，例如详细研究制动软管的油耗。其他论文研究了完整的系统，但对其进行了极大的简化，因此忽略了一些相关的影响。在这项工作中，重点是研究单个相关组件（例如液压单元和软管）对整个系统性能的影响。为此，使用完整的液压制动系统进行测量，包括最先进的机电制动助力器和用于识别的单个组件测量。通过使用温度室进行测量，本研究包括从低到高的各种环境温度。研究了通过系统的动态压力传播，因为这对于将来的高动态制动系统至关重要。除此之外，还介绍了不仅关注动态特性而且关注系统效率的关键指标。由于制动操作通常是短期的且非常动态的过程，因此在不显着影响系统性能的情况下，很难集成诸如流量计之类的测量设备。因此，可以从理想系统到完整的详细系统生成具有不同程度的零件详细程度的仿真模型，以更好地了解相关零件及其对之前介绍的关键指标的影响。这项工作可以帮助开发人员更好地了解某些组件对系统总体性能的影响以及如何改进它们以满足未来的需求。

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