Motion-tracking skill assist and power assist for sinusoidal motions with a semi-active assist mechanism using energy control
نویسندگان
چکیده
This paper describes a skill assist method for sinusoidal motions using a semi-active assist mechanism through an energy control method. In a previous study, we had developed and verified the effectiveness of a power assist device with a semi-active assist mechanism and a control method for reducing loads during periodic motion. Here, we have developed a skill assist method as an extension of our power assist device for periodic motion. The skill of performing sinusoidal motions is defined in this study as an operator’s ability to track such motions. Therefore, our skill assist method attempts to improve the operator’s tracking ability. The proposed skill assist method is implemented using our previous power assist device; therefore, the device provides not only a power assist effect but also a skill assist effect to correct the motion. Hence, an operator obtains both the power and the skill assist effects simultaneously.
منابع مشابه
Energy-Efficient Power Assist Control with Periodic Disturbance Observer and Its Experimental Verification Using an Electric Bicycle
This paper addresses the problem of energy-efficient power assist control for quasiperiodic motions. The simplest assist method would be to apply additional torque in proportion to the instantaneous value of torque generated by a user. In our previous study, it was shown that energy efficiency improves by flattening the torque pattern. To cope with the frequency fluctuation of our motion, we in...
متن کاملMulti-objective Optimization of Hybrid Electric Vehicle Equipped with Power-split Continuously Variable Transmission
This paper aims to find the efficient state of hybrid electric vehicle (HEV) by simultaneous optimization of the control strategy and the power train. The power transmission employed in this vehicle is a power-split continuously variable transmission (CVT) which uses several fixed ratio mechanisms. After describing this transmission, the rules of electric assist control strategy are introduced....
متن کاملE-Tools to Assist EFL Learners' Writing Skill: Wikis, Weblogs, and Podcasts
One of the promises of web-based education is to help students take control of their learning pace as the basic requirement of language learning is being life-long. The purpose of the present study was to find out which of the e-tools -- weblogs, wikis, or podcasts -- can better help EFL learners excel in their writing skill. To this end, 156 Iranian sophomore students majoring in English and s...
متن کاملBioflocculation technique for microalgal harvesting and wastewater nutrient recovery
Fungal assist microalgal cultivation is getting substantial considerations due to the highly efficiency of bioflocculation process without demanded of using chemicals and little bit energy input. Therefore, Fungi pelletization-assisted microalgal cultivation were applied for improving algal harvesting process and nutrient recovery as step wise for wastewater treatment. Two strains of marine mic...
متن کاملA Grid-connected PV Power Supply based on Flying Capacitor multicell converter with modified MPPT based Control for Active Power Filtering
This paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (APF), based on Flying Capacitor Multicell (FCM) converter. Increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of FCM converter compared with conventional multi...
متن کامل