| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric circuit for continuously supply power to electrical equipment loads in a vehicle having two batteries even if there is a terminal disconnection on one battery when automatic restart is initiated from an idling-stop.SOLUTION: A vehicular electric circuit includes: first and second batteries mutually connected in parallel; a second electrical-equipment load set that is at least a part of all electrical equipment loads of a vehicle and is connected to a second battery; a first electrical-equipment load set that is an electrical-equipment load set other than the second electrical-equipment load set and is connected to a first battery; a circuit breaker capable of connecting and shutting an electrical connection between the first battery and the second electrical-equipment load set. The circuit breaker includes: first switch means disposed so that a forward direction of a parasitic diode is oriented from the first battery to the second electrical-equipment load set; and second switch means disposed serially to the first switch means. Further, when an engine is automatically restarted, the first switch means is put to a shut state, while the second switch means is put to a connected state. |
