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Study on evaluation of drivability by measuring physiological and psychological response

通过测量生理和心理反应评价驾驶性能的研究

基本信息

批准号：
09838013
负责人：
SADOYAMA Tsugutake
金额：
$ 2.11万
依托单位：
Shinshu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

[Purpose]Drivability is different greatly what kind of tire a car mounted with. Driver realizes drivability as a feeling of response from steering wheel operation. Physiological and psychological driving stress of the driver is different by a kind of the tire. In this study, we make an evaluation method of drivability by measuring electromyograms(EMGs) of muscles of arms.[Study method]We chose that subjects are the skilled drivers that have evaluated tires in tire manufacturer. The drivers drive the driving course of double lane change with speed 90km/h. We used one vehicle that 3 kinds vehicle dynamics by mount with the tires that a physical characteristic of back wheel tires was different from front wheel tires. The 3 kinds of vehicle dynamics are neural steer(NS), over steer(OS) and under steer(US). As the physiological response, Megs of 5 kinds muscles of both arms: the biceps muscle, the triceps, the deltoid muscle, extensor and flexor were selected. During driving, the EMGs were … More measured by unipolar derivation. Ag-AgCl electrodes were attached to skin surface on the muscles. The EMGs were amplified by the bio-amplifier (MP 100WS (EMG100A), BIOPAC Inc. ), A/D-converted with a 500 Hz sample frequency, and recorded into a computer. After driving, we set out a questionnaire to the drivers about concentration / devotion, stress, mental strain and achievement degree of driving subject.[Results]The following knowledge was obtained from this studies.・ As a result of questionnaire, neural steer was the best in stability and handling, and, subsequently, was order of OS, US.・ In the bicipital muscle, triceps and deltoid muscle, the load for the muscles was big by order of NS, OS, US. That is a same order as the questionnaire result. As for the muscle activity of the bicipital muscle, triceps and deltoid muscle and vehicle dynamics, an adequate correlation is obtained. These 3 muscles are the muscle used for handling.・ The extensor isn't used to steer. The EMG of like spikes was observed before doing steering of lane change, This suggests that an activity of an excessive muscle happened by mental strain・ A personal habit about steering was shown such as to steer only by the dominant hand. Less

[目的]安装什么样的轮胎的汽车的驾驶性能有很大不同。驾驶员通过方向盘操作的响应感来实现驾驶性能。不同类型的轮胎，驾驶员的生理和心理驾驶压力也不同。在本研究中，我们通过测量手臂肌肉的肌电图（EMG）来制定驾驶性能的评估方法。 [研究方法]我们选择的受试者是在轮胎制造商中评估过轮胎的熟练驾驶员。驾驶员以90km/h的速度行驶双变道的行驶路线。我们使用了一种车辆，通过安装后轮轮胎的物理特性与前轮轮胎不同的轮胎，实现了 3 种车辆动力学。三种车辆动力学是神经转向（NS）、过度转向（OS）和转向不足（US）。作为生理反应，选择双臂5种肌肉：二头肌、三头肌、三角肌、伸肌和屈肌的Meg。在驾驶过程中，肌电图通过单极导数进行测量。 Ag-AgCl 电极附着在肌肉的皮肤表面。 EMG通过生物放大器（MP 100WS（EMG100A），BIOPAC Inc.）放大，以500 Hz采样频率进行A/D转换，并记录到计算机中。驾驶后，我们对驾驶员进行了关于驾驶主体的注意力/专注度、压力、精神紧张和成就程度的问卷调查。[结果]从本研究中获得了以下知识。・问卷调查结果显示，神经转向在稳定性和操控性方面最好，其次是 OS、US。・二头肌、三头肌和三角肌的肌肉负荷较大 NS、OS、US 的顺序。这与问卷结果的顺序相同。至于二头肌、三头肌和三角肌的肌肉活动与车辆动力学，获得了足够的相关性。这 3 块肌肉是用于操纵的肌肉。・伸肌不用于操纵。在进行变道转向之前观察到类似尖峰的肌电图，这表明由于精神紧张而发生了过度的肌肉活动。显示了仅用惯用手转向等个人转向习惯。较少的