DISCHARGE CONTROL SYSTEM
First Claim
1. A discharge control system for a electric storage pack which has a plurality of electric rechargeable cells connected in series and a feeding circuit for driving a load which the feeding circuit is connected to discharge lines from the electric rechargeable cells, said system comprising:
- a plurality of cell voltage detection units which detect respective cell voltages of the electric rechargeable cells;
a switch group including a plurality of switches which are respectively connected between the electric rechargeable cells; and
a control unit which designates a electric rechargeable cell having a highest cell voltage in the electric rechargeable cells possessed by the electric storage pack as a group in accordance with detection results by the cell voltage detection units and forms a discharge line from the electric rechargeable cell designated as forming the group to the feeding circuit by controlling the switches of the switch group individually.
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Accused Products
Abstract
A discharge control system of a electric storage pack has a plurality of electric rechargeable cells connected in series and a discharge line is connected from a electric rechargeable cell to a load driving feeding circuit. The discharge control system includes cell voltage detection units for detecting respective cell voltages of the plurality of cells, a switch group made up of a plurality of switches connected between the plurality of cells, and a control unit which designates a cell having a highest cell voltage in the plurality of electric rechargeable cells possessed by the electric storage pack in accordance with detection results by the cell voltage detection units and on/off controls the switches of the switch group individually so as to form a discharge line from a electric rechargeable cell of the group to the load driving feeding circuit.
22 Citations
11 Claims
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1. A discharge control system for a electric storage pack which has a plurality of electric rechargeable cells connected in series and a feeding circuit for driving a load which the feeding circuit is connected to discharge lines from the electric rechargeable cells, said system comprising:
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a plurality of cell voltage detection units which detect respective cell voltages of the electric rechargeable cells; a switch group including a plurality of switches which are respectively connected between the electric rechargeable cells; and a control unit which designates a electric rechargeable cell having a highest cell voltage in the electric rechargeable cells possessed by the electric storage pack as a group in accordance with detection results by the cell voltage detection units and forms a discharge line from the electric rechargeable cell designated as forming the group to the feeding circuit by controlling the switches of the switch group individually. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification