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Extensions for Distributed Moving Base Driving Simulators

機(jī)譯：分布式移動(dòng)基地駕駛模擬器的擴(kuò)展

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摘要

Modern vehicles are complex systems. Different design stages for such a complex system include evaluation using models and submodels, hardware-in-the-loop systems and complete vehicles. Once a vehicle is delivered to the market evaluation continues by the public. One kind of tool that can be used during many stages of a vehicle lifecycle is driving simulators. The use of driving simulators with a human driver is commonly focused on driver behavior. In a high fidelity moving base driving simulator it is possible to provide realistic and repetitive driving situations using distinctive features such as: physical modelling of driven vehicle, a moving base, a physical cabin interface and an audio and visual representation of the driving environment. A desired but difficult goal to achieve using a moving base driving simulator is to have behavioral validity. In other words, \A driver in a moving base driving simulator should have the same driving behavior as he or she would have during the same driving task in a real vehicle.". In this thesis the focus is on high fidelity moving base driving simulators. The main target is to improve the behavior validity or to maintain behavior validity while adding complexity to the simulator. One main assumption in this thesis is that systems closer to the final product provide better accuracy and are perceived better if properly integrated. Thus, the approach in this thesis is to try to ease incorporation of such systems using combinations of the methods hardware-in-the-loop and distributed simulation. Hardware-in-the-loop is a method where hardware is interfaced into a software controlled environment/simulation. Distributed simulation is a method where parts of a simulation at physically different locations are connected together. For some simulator laboratories distributed simulation is the only feasible option since some hardware cannot be moved in an easy way. Results presented in this thesis show that a complete vehicle or hardware-in-the-loop test laboratory can successfully be connected to a moving base driving simulator. Further, it is demonstrated that using a framework for distributed simulation eases communication and integration due to standardized interfaces. One identified potential problem is complexity in interface wrappers when integrating hardware-in-the-loop in a distributed simulation framework. From this aspect, it is important to consider the model design and the intersections between software and hardware models. Another important issue discussed is the increased delay in overhead time when using a framework for distributed simulation.
機(jī)譯：現(xiàn)代車輛是復(fù)雜的系統(tǒng)。這種復(fù)雜系統(tǒng)的不同設(shè)計(jì)階段包括使用模型和子模型進(jìn)行評(píng)估，硬件在環(huán)系統(tǒng)和整車。車輛交付市場(chǎng)后，公眾將繼續(xù)進(jìn)行評(píng)估?？梢栽谲囕v生命周期的許多階段中使用的一種工具是駕駛模擬器。通常，將駕駛員駕駛模擬器用于駕駛員行為。在高保真移動(dòng)基座駕駛模擬器中，可以使用獨(dú)特的功能來提供現(xiàn)實(shí)和重復(fù)的駕駛情況，例如：被驅(qū)動(dòng)車輛的物理模型，移動(dòng)基座，物理機(jī)艙界面以及駕駛環(huán)境的視聽表示。使用移動(dòng)基座駕駛模擬器要實(shí)現(xiàn)的期望但困難的目標(biāo)是具有行為有效性。換句話說，“移動(dòng)基地駕駛模擬器中的駕駛員應(yīng)具有與真實(shí)車輛中相同駕駛?cè)蝿?wù)中的駕駛行為相同的駕駛行為。”本文主要研究高保真移動(dòng)基地駕駛模擬器。主要目標(biāo)是提高行為有效性或維持行為有效性，同時(shí)增加模擬器的復(fù)雜度，本文的一個(gè)主要假設(shè)是，距離最終產(chǎn)品較近的系統(tǒng)提供了更好的準(zhǔn)確性，并且如果正確集成，則可以更好地感知。本文的方法是嘗試通過硬件在環(huán)和分布式仿真相結(jié)合的方法來簡化此類系統(tǒng)的集成，硬件在環(huán)是一種將硬件連接到軟件控制的環(huán)境/仿真中的方法。分布式仿真是將物理上不同位置的仿真部分連接在一起的一種方法，對(duì)于某些仿真器實(shí)驗(yàn)室而言，分布式仿真是唯一可行的方法ble選項(xiàng)，因?yàn)槟承┯布o法輕松移動(dòng)。本文提出的結(jié)果表明，一個(gè)完整的車輛或硬件在環(huán)測(cè)試實(shí)驗(yàn)室可以成功地連接到移動(dòng)基地駕駛模擬器。此外，證明了由于標(biāo)準(zhǔn)化接口，使用用于分布式仿真的框架可簡化通信和集成。一個(gè)潛在的潛在問題是在將硬件在環(huán)中集成到分布式仿真框架中時(shí)，接口包裝的復(fù)雜性。從這個(gè)方面來說，重要的是要考慮模型設(shè)計(jì)以及軟件和硬件模型之間的交集。討論的另一個(gè)重要問題是使用分布式仿真框架時(shí)開銷時(shí)間的增加的延遲。

著錄項(xiàng)

  • 作者

    Andersson, Anders;

  • 作者單位
  • 年度 2017
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  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類

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