Charging a battery using interpack switch
First Claim
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1. A system for a vehicle comprising:
- an interpack switch configured to connect at least two cells of a traction battery when closed to transfer electric charge therebetween; and
a controller configured to, responsive to a request, operate the switch to disconnect the cells and to initiate transfer of electric charge to each of the cells in parallel and at a same time.
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Abstract
A system for a vehicle includes an interpack switch configured to connect portions of a traction battery when closed to transfer electric charge therebetween, and a controller configured to, responsive to a request, operate the switch to disconnect the portions and to initiate transfer of electric charge to each of the portions in parallel and at a same time.
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Citations
20 Claims
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1. A system for a vehicle comprising:
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an interpack switch configured to connect at least two cells of a traction battery when closed to transfer electric charge therebetween; and a controller configured to, responsive to a request, operate the switch to disconnect the cells and to initiate transfer of electric charge to each of the cells in parallel and at a same time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
in response to a charging request, opening by a controller an interpack switch, configured to connect at least two cells of a traction battery to transfer electric charge therebetween when closed, to disconnect the cells and initiate transfer of electric charge to each of the cells in parallel and at a same time. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A system for a vehicle comprising:
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a pair of main contactors configured to transfer electric charge to a traction battery when closed, the battery including at least two cells selectively connectable using an interpack switch to transfer electric charge therebetween; and a controller configured to, in response to a request, operate the switch to disconnect the cells and to initiate charging of the cells via the contactors in parallel and at a same time. - View Dependent Claims (14, 15)
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16. A system for a vehicle comprising:
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electrical switch circuitry configured to selectively connect at least two cells of a traction battery in series or in parallel; and a processor programmed to request a charge current from a charge station at a magnitude that is based on whether the cells are connected in series or connected in parallel, and to charge the cells via the charge current. - View Dependent Claims (17, 18, 19, 20)
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Specification