The growing popularity of self-driving, so-called autonomous vehicles has increased the need for human-machine interfaces~(HMI) and user interaction~(UI) to enhance passenger trust and comfort. While fallback drivers significantly influence the perceived trustfulness of self-driving vehicles, fallback drivers are an expensive solution that may not even improve vehicle safety in emergency situations. Based on a comprehensive literature review, this work delves into the potential of HMI and UI in enhancing trustfulness and emotion regulation in driverless vehicles. By analyzing the impact of various HMI and UI on passenger emotions, innovative and cost-effective concepts for improving human-vehicle interaction are conceptualized. To enable a trustful, highly comfortable, and safe ride, this work concludes by discussing whether HMI and UI are suitable for calming passengers down in emergencies, leading to smarter mobility for all.

翻译：随着所谓自动驾驶汽车的日益普及，增强乘客信任与舒适度的人机界面（HMI）和用户交互（UI）需求也相应增长。尽管后备驾驶员显著影响自动驾驶汽车的可信度感知，但后备驾驶员是一种成本高昂的解决方案，甚至在紧急情况下可能无法提升车辆安全性。基于全面的文献综述，本研究深入探讨了HMI与UI在提升无人驾驶车辆可信度与情绪调节方面的潜力。通过分析各类HMI和UI对乘客情绪的影响，本研究概念化了一系列提升人车交互的创新性且成本效益高的方案。为实现可信赖、高舒适度且安全的驾乘体验，本文最后探讨了HMI与UI是否适用于在紧急情况下安抚乘客情绪，从而为所有人带来更智能的出行方式。