| 摘要 |
<p>PURPOSE:To simplify the wiring of a battery powdered vehicle by employing a complete 2-wired wiring for an automotive driving motor and a body-earth wiring for loads and forming the body earthing circuit of the loads through a fuse when a key switch is closed ON. CONSTITUTION:Since a normal-open contact 69b of a relay 69 is opened when a key switch 29 is opened, a negative electrode of a battery 1 is not connected to a body 33. Since the relay 69 is operated so that the contact 69b is closed when the switch 29 is then closed, the negative electrode of the battery 1 and the body 33 are connected through a fuse 79, and the negative sides of respective automotive units 67 are connected to the negative electrode of the battery 1. A vehicle driving motor M is connected via a lone across the battery 1. Since the body is thus earthed, the earthing wires for the automotive units of small capacity can be significantly reduced.</p> |
