Study on Crawler-Type Solar EV
Abstract
to supply electricity, the crawler-type solar electric vehicle (solar EV) is able to travel on rough ground and has a self-charging function owing to solar energy absorption. The crawler can move in various ground conditions, such as asphalt, soil, grass, and gravel. Driving experiments were performed under different conditions, and we measured the photovoltaic current, voltage, acceleration, and power consumption. As a result, the solar fraction is compared with the vibration, it was found that solar fraction of the crawler-type solar EV was achieved 40- 44 % on a winter clear day, power consumption of the motor was not proportional to z-axis acceleration. For specified solar fraction, ratio between PV and motor ratings was around 30 %, it is larger than scooter-type solar EV.