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US 2013/0211642 A1Published application
Method for operating an electric battery of a motor vehicle, and motor vehicle verfahren zum betreiben einer elektrischen batterie eines kraftfahrzeugs sowie kraftfahrzeug
AssigneeAudi AG
InventorsBoris Blasinski, Rene Kasteneder
Life of this patent
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Abstract
An electric battery of a hybrid vehicle can be heated by alternately discharging and charging the battery during a cold start, wherein the battery initially does not supply power to drive the vehicle. Heating the battery can also be used to simultaneously change the charge state of the battery. The heating can be started immediately at the cold start, without the need to first bring the electric battery to a specific charge state.
Claims11
-7. (canceled)
A method for operating an electric battery of a motor vehicle, comprising:
- partially discharging the battery in a first operation and is thereafter partially charging the battery in a second operation so as to cause heating of the battery, said first and second operation having a combined duration defining a time period, and
- repeating the first operation and the subsequent second operation several times so as to change a charge state of the battery after several time periods.
A motor vehicle, comprising:
- an internal combustion engine,
- an electric drive,
- an electric battery assigned to the electric drive for supplying electric power to the electric drive, and
- a control device which is configured to
- repeatedly partially discharge the battery in a first operation and subsequently partially charge the battery in a second operation for heating the battery, said first and second operation having a combined duration defining a time period, and to
- repeat the first and subsequent second operation several times such that a charge state of the battery is changed after several time periods.
3 more elements
Dependencies are inferred from the claim text.