High voltage battery pack cycler for a vehicle
First Claim
1. Apparatus for controlling the charge on a battery system for a vehicle, the battery system including a first, low voltage battery for operating electrical systems on the vehicle and a second, high voltage traction battery, comprising:
- a battery cycler adapted to charge both the low voltage battery and the high voltage battery, said battery cycler further adapted to discharge the high voltage battery, said battery cycler off-board said vehicle; and
,a controller adapted to control the operation of the battery cycler including discharge of said high voltage battery, said controller on-board said vehicle.
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Accused Products
Abstract
An off-board battery cycler is used to condition an on-board battery system used in electric or hybrid electric vehicles. The battery cycler periodically discharges the vehicle'"'"'s high voltage traction battery to eliminate battery “memory” that can prevent the battery from being fully charged. The cycler also recharges both the high voltage battery and an on-board low voltage battery used to power the vehicle'"'"'s electrical system. High voltage AC power used in recharging the high voltage battery is switched using contactors physically isolated within the battery cycler, in order to protect operating personnel from coming onto contact with high voltage. Faults and malfunctions are recorded by the vehicle'"'"'s on-board controller
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Citations
16 Claims
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1. Apparatus for controlling the charge on a battery system for a vehicle, the battery system including a first, low voltage battery for operating electrical systems on the vehicle and a second, high voltage traction battery, comprising:
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a battery cycler adapted to charge both the low voltage battery and the high voltage battery, said battery cycler further adapted to discharge the high voltage battery, said battery cycler off-board said vehicle; and
,a controller adapted to control the operation of the battery cycler including discharge of said high voltage battery, said controller on-board said vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for controlling the state of charge of an on-board battery system for a vehicle, wherein the battery system includes a low voltage battery for operating electrical systems on the vehicle and a high voltage traction battery, comprising:
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a battery cycler adapted to discharge and recharge the high voltage battery, and adapted to recharge the low voltage battery, said battery cycler off-board said vehicle; and
,a first controller adapted to control the operation of the battery cycler including discharge of said high voltage battery to achieve a preselected state of charge on each of the high and low voltage batteries, said first controller onboard said vehicle; a second controller adapted to sense faults in the operation of the battery cycler and the first controller, said second controller on-board said vehicle. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification