| 摘要 |
PCT No. PCT/NZ93/00067 Sec. 371 Date Feb. 3, 1995 Sec. 102(e) Date Feb. 3, 1995 PCT Filed Aug. 16, 1993 PCT Pub. No. WO94/04394 PCT Pub. Date Mar. 3, 1994In 3-pole vehicle batteries with a cranking battery (2) and an auxiliaries battery (8) a device accompanies the battery wherein a switch R1 connects and disconnects the like poles (6,12) so that may receive charge and a switch R2 which connects and disconnects electrical auxiliaries to and from the auxiliary battery. The device senses the state of charge of the auxiliary battery and the current flowing from the auxiliaries battery to the cranking battery. A microprocessor mu P uses this and extra data to open R2 and prevent any serious discharge of the auxiliaries battery; to close R1 to permit charging of the cranking battery and to allow the cranking battery to assist a partially discharged auxiliaries battery; to open R1 when overcharge is indicated. In a second version only switch R1 is present but a detector senses the operator's requirement to start the vehicle and closes R1 to join the outputs of the cranking and auxiliaries batteries.
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