| 摘要 |
<p>In response to interengagement between a contact assembly (130), (Fig. 10), on the vehicle and a charging head (12), (Fig. 4), charging current is supplied to the charging head for recharging the vehicle's battery. The interengagement operates a microswitch (187), (Fig. 16A), on the vehicle whereby if a charge level monitor (208) indicates that recharging is required, a vehicle computer (204) energizes a relay (212) so that a signal is sent from the battery (206) via the charge head to unblock safety switching means (214) whereby the charging head is supplied with charging current and charging is effected under control of a current limiter (210) on the vehicle, The interengagement also operates a microswitch (94) at the charge head, in response to which communication between the vehicle computer (204) and a charge head computer (205) is established. The vehicle drive system may be computer controlled for indexing of the vehicle between charge heads. Interengagement of the vehicle contact assembly and the charge head is facilitated by providing guide members (196), (198), (Fig. 10) on the vehicle and providing a spring- biased self-aligning mounting for the charge head (Figs. 5, 6) which allows the head to a rise and fall on a parallelogram linkage, b rotate about a vertical axis, and c to move horizontally laterally of the vehicle's direction of advance. During the interengagement cams 36, 152, on the charge head and vehicle respectively, lift cover plates 134, 50 to expose electrical contacts on the vehicle contact assembly and the charge head. <IMAGE></p> |
