文献一覧: 丸茂喜高 (著者)

43 0 0 0 OA 加減速操作位置呈示による列車運転士の運転支援システムに関する研究

著者: 丸茂喜高清水勇介竹内亮佑綱島均小島崇
出版者: 一般社団法人日本機械学会
雑誌: 日本機械学会論文集 (ISSN:21879761)
巻号頁・発行日: vol.80, no.817, pp.TL0280-TL0280, 2014 (Released:2014-09-25)
参考文献数: 9
被引用文献数: 1

This study proposes a driving assistance system to inform the notch operation timing for train drivers. The assistance system indicates visually the notch-off position where the driver releases the accelerator. The notch-off position is calculated by the present vehicle acceleration, velocity and position by assuming the constant acceleration. The assistance system also indicates the brake onset and the predicted stopping positions. Two experiments are conducted by using the train-driving simulator. One experiment examines the effects of the notch-off and brake onset timing on the vehicle velocity and the running time. The assistance system makes it possible to adjust the vehicle velocity and the running time. The other experiment examines the three running patterns by combination of the notch-off and the brake onset positions. With the time recovering pattern, which is combination of the higher notch-off velocity and the later brake onset timing, the assistance system realizes the shorter running time in comparison with the standard running pattern. With the energy saving pattern, which is combination of the lower notch-off velocity and the later brake onset timing, the assistance system prevents the time delay by the later brake timing even if the velocity is lower than the standard running pattern.

2016-08-22 04:58:43
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6 0 0 0 OA 対向右折車への優先行動が交通流へ及ぼす影響

著者: 丸茂喜高鈴木宏典片山硬
出版者: The Society of Instrument and Control Engineers
雑誌: 計測自動制御学会論文集 (ISSN:04534654)
巻号頁・発行日: vol.48, no.10, pp.614-621, 2012 (Released:2012-11-29)
参考文献数: 13
被引用文献数: 2 3

This study proposes an idea that encourages driver's motivation to drive altruistically. We focus on an existing intersection that disturbs the throughput of upstream vehicles by right-turn vehicles waiting a gap acceptance to turn right. We investigated some scenarios that oncoming thru traffic mandatorily give a right-of-way to the right-turn vehicles to make enough time-gap for right turning. Here, it is assumed that the effects of giving a right-of-way to the right-turn vehicles are provided to a driver of approaching thru vehicle via onboard indicator. A verified traffic simulator examines the effects of prioritizing behavior on traffic flow. Numerical analysis showed that the traffic throughout in congested states was gradually improved when prioritized right-turn vehicles increases. Also, penetration of the prior right-turn vehicles is effective to mitigate not only the collision risk at the intersection but also the total CO2 emission over the arterial road.

2021-01-30 15:59:01
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2 0 0 0 OA オーバーランと運転時分遅延の防止のためのブレーキ開始位置呈示による列車運転士のブレーキ操作支援システム

著者: 丸茂喜高清水勇介綱島均小島崇
出版者: 一般社団法人日本機械学会
雑誌: 日本機械学会論文集 (ISSN:21879761)
巻号頁・発行日: vol.80, no.817, pp.TL0278, 2014 (Released:2014-09-25)
参考文献数: 11
被引用文献数: 1 1

This study proposes the braking assistance system for train drivers when stopping at a station to prevent the drivers from overrunning and running time delay. The assistance system informs the driver visually of the brake onset position, which is calculated by the assumed deceleration, the present vehicle velocity and the desired stopping position. This study conducts two experiments using the train-driving simulator with three participants. One experiment examines the effects of the driving assistance system on the braking behavior with the mental calculation, which assumes the mental workload. The assistance system makes it possible to decrease the dispersion of the brake onset timing and the running time. The other experiment examines the effects of the brake onset timing on the running time and the safety margin to make the vehicle stop at the desired position. The brake onset timing is adjusted by changing the assumed deceleration. Obtained results show a good correlation between the assumed deceleration and the running time, and the later brake onset timing contributes the shorter running time. In addition, a good correlation between the assumed deceleration and the minimum value of the predicted stopping position, i.e. the safety margin, is also observed, and the later brake onset timing deteriorates the safety margin.

2019-04-30 15:01:28
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1 0 0 0 OA エネルギフロー法を用いた二輪車の直進安定性向上に関する研究ロール角加速度フィードバックによる操舵トルク制御の検討

著者: 丸茂喜高片山硬
出版者: 一般社団法人日本機械学会
雑誌: 日本機械学会論文集 C編 (ISSN:03875024)
巻号頁・発行日: vol.71, no.704, pp.1247-1253, 2005-04-25 (Released:2011-03-04)
参考文献数: 5
被引用文献数: 2 1

This study proposes an improved method for stabilizing straight running of two-wheeled vehicles. An analysis of the two-wheeled vehicle's vibration modes was completed using the Energy Flow Method, which calculates energy flow of external forces in each motion. Based on these results, we examined the control using steering torque as the control input. Controlling steering torque with rolling acceleration feedback increases wobble and weave mode stabilities. Wobble mode stability is increased by the external force concerning rolling motion. Weave mode stability is also increased by the phase lead of front tire side force in yawing motion. Using another variable as a feedback control signal, for example controlling steering torque with yaw rate feedback, increases only one mode's stability and destabilizes the other mode.