The ergonomic value of a bidirectional haptic interface when driving a highly automated vehicle
The ergonomic value of a bidirectional haptic interface when driving a highly automated vehicle
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DOI：
10.1007/s10111-012-0243-6
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发表时间：
2013-11
期刊：
影响因子：
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通讯作者：
M. Kienle;Daniel Damböck;H. Bubb;K. Bengler
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文献类型：
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作者：
M. Kienle;Daniel Damböck;H. Bubb;K. Bengler
技术的进步推动了驾驶员辅助系统的发展。即使在今天，这些系统也可以接管部分驾驶任务。然而，随着功能数量的增加，界面变得越来越复杂。降低这种复杂性的一种方法是冒险触觉通道。虽然横向方向上的触觉反馈相对容易经由方向盘实现，但是纵向方向形成了挑战。对于传统的控制元件，即踏板，触觉交互只能部分实现（这是由于加速踏板和制动踏板的划分）。触觉信号，如加到油门踏板上的力，只能传输有关加速度的信息，而不是所需的减速度。在这种情况下，二维控制元件在未来高度自动化的车辆驾驶方面显示出巨大的潜力。因此，在慕尼黑工业大学人体工程学研究所进行的一项实验研究了使用主动侧杆作为控制元件时辅助系统的触觉反馈对驾驶性能的影响。此外，车辆振动和加速度的影响进行了探讨。除了客观性能数据外，还报告了主观评估。结果表明，增加辅助显著提高驾驶性能。此外，主观评级表明工作量有所减少。然而，加速度和振动对驾驶性能没有可验证的影响。受试者的主观评估证实了这一事实。本文表明，二维控制元件可以是一个合理的替代方向盘和踏板时，驾驶高度自动化的车辆。
Advances in technology have fueled the development of driver assistance systems. Even today, these systems can take over parts of the driving task. However, the interface becomes more and more complex with an increasing number of functions. One way to reduce such complexity is to venture the haptic channel. While haptic feedback in lateral direction is comparatively easy to realize via the steering wheel, the longitudinal direction forms a challenge. With conventional control elements, that is, pedals, haptic interaction can only be partially realized (this is due to the division of accelerator and brake pedals). Haptic signals, like forces added to the accelerator pedal, can only transmit information regarding the amount of acceleration, not the desired deceleration. In this context, two-dimensional control elements show great potential regarding future highly automated vehicle driving. Therefore, an experiment conducted at the Institute of Ergonomics of the Technische Universität München investigated the influence of haptic feedback of assistance systems on driving performance when using an active side stick as control element. Additionally, the impact of vehicle vibrations and accelerations were explored. Besides objective performance data, subjective assessment was also reported. The results show that adding assistance significantly improves driving performance. Moreover, subjective ratings indicate a reduction in workload. Accelerations and vibrations, however, had no verifiable effect on the driving performance. This fact was confirmed by the subjects’ subjective assessment. This paper shows that two-dimensional control elements can be a reasonable alternative to steering wheel and pedals when driving a highly automated vehicle.