Automotive power unit
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorsHiromichi Yasunori, Kosei Maekawa, Akio Ishihara
Life of this patent
Estimating the term…
Abstract
An automotive power unit includes a plurality of storage batteries; a power supply box arranged between the storage batteries and a load; a switch means that is provided in the power supply box and selects whether or not to supply power to the load from the storage batteries; and a switch control unit that detects output voltages of the storage batteries and controls the opening and closing of the switch means so as to select a storage battery for supplying power to the load. The switch control unit enables, based on a control signal that is output from a load control unit when the load is driven, a storage battery selecting operation to be performed by the switch means.
Claims27
An automotive power unit comprising:
- a plurality of storage batteries;
- a power supply box to be arranged between the storage batteries and a load;
- a switch means for selecting whether or not to supply power to the load from the storage batteries, the switch means being provided in the power supply box;
- a redundant power supply device configured to supply power to a load group from at least one of a first storage battery and a second storage battery that are included in the plurality of storage batteries;
- a separation device arranged between the redundant power supply device and each of the first storage battery and the second storage battery and, when one of the first storage battery and the second storage battery has made a short circuit, opens a contact provided between the one of the storage batteries and the other of the storage batteries;
- and
- a switch control unit that detects output voltages of the storage batteries and controls opening and closing of the switch means so as to select the storage battery for supplying power to the load,
- wherein the switch control unit enables, based on a control signal that is output from a load control unit when the load is driven, a storage battery selecting operation is to be performed by the switch means.
Dependencies are inferred from the claim text.