驾驶模拟器驱动的TCU换挡策略驾驶性主客观评价研究

Subjective and Objective Driveability Evaluation of TCU Shift Strategy Driven by Driving Simulator

TCU换挡策略对汽车驾驶性影响多通过主观评价来测试验证和标定,针对软件在环、硬件在环等仿真方法不能实现对TCU换挡策略的主观评价问题,提出了一种驾驶模拟器驱动的TCU换挡策略驾驶性评价方法。本文中首先搭建了驾驶模拟器驱动AutoBox嵌入的人车环境闭环TCU换挡策略评价平台,建立能识别驾驶意图和道路环境的TCU换挡策略模型,总结出了TCU换挡策略相关的驾驶性主客观评价表。然后利用搭建的平台对建立的TCU换挡策略进行了驾驶性主客观评价,获得了主观评分结果和客观评价指标。通过分析评价,验证了驾驶模拟器驱动的TCU换挡策略评价平台的可行性和研究方法的可行性,研究的平台和方法可用于TCU换挡策略驾驶性快速主客观评价,有效减少实车测试评价工作量,降低开发成本,缩短开发周期。

The influence of TCU shift strategy on vehicle driveability is mostly tested and validated by subjective evaluation.For the problem that the subjective evaluation of TCU shift strategy cannot be realized by software-in-the-loop and hardware-in-the-loop simulation methods,a subjective driveability evaluation method of TCU shift strategy by driving simulator is proposed.Firstly,in this paper,the evaluation platform of human-vehicle-environment closed loop TCU shift strategy with embedded driving simulator AutoBox is built,the TCU shift strategy model which can identify driving intention and road environment is established.and the subjective and objective evaluation forms of driveability related to TCU shift strategy are proposed.Then,the subjective and objective evaluation of the established TCU shift strategy is carried out by using the built platform,and the subjective score results and objective evaluation index are obtained.Through analysis and evaluation,the feasibility of drivability evaluation platform on TCU shift strategy with the driving simulator and the research method are verified.The platform and method can be used for the rapid subjective and objective evaluation of driveability of the TCU shift strategy,which effectively reduces the the workload of real vehicle test and evaluation,cuts development costs,and shorten the development cycle.