Battery control system, battery control method and electric vehicle
AssigneeLG Energy Solution, Ltd.
InventorYean-Sik Choi
Life of this patent
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Abstract
A battery control system according to the present disclosure is for an electric vehicle including a vehicle controller connected between a first node and a second node, a vehicle communication unit operably coupled to the vehicle controller, an electric motor connected between the second node and a third node, and a battery pack connected between a fourth node and the second node. The battery control system provides a sub power path between the battery pack and the vehicle controller prior to providing a main power path from the battery pack to the electric motor, in response to receiving an ignition signal for the electric vehicle.
Claims16
A battery control system for an electric vehicle including a vehicle controller connected between a first node and a second node, a vehicle communicator operably coupled to the vehicle controller, an electric motor connected between the second node and a third node, and a battery pack connected between a fourth node and the second node, the battery control system comprising:
- a battery communicator configured to transmit a first request signal in response to an ignition signal for the electric vehicle;
- a first switch connected between the first node and the fourth node;
- a second switch connected between the first node and the third node;
- and
- a battery controller configured to turn on the first switch to provide a sub power path between the battery pack and the vehicle controller and transmit a notification signal including battery information of the battery pack, in response to the first request signal, if both the first switch and the second switch are turned off,
- wherein the battery communicator is further configured to transmit a second request signal including the battery information to the vehicle communicator in response to the notification signal.
A battery control method for an electric vehicle including a vehicle controller connected between a first node and a second node, a vehicle communicator operably coupled to the vehicle controller, an electric motor connected between the second node and a third node, and a battery pack connected between a fourth node and the second node, the battery control method comprising:
- transmitting the first request signal in response to an ignition signal for the electric vehicle;
- if both a first switch connected between the first node and the fourth node and a second switch connected between the first node and the third node are turned off, turning on the first switch to provide a sub power path between the battery pack and the vehicle controller in response to the first request signal;
- transmitting a notification signal including battery information of the battery pack after the first switch is turned on;
- and
- transmitting a second request signal including the battery information to the vehicle communicator in response to the notification signal.
Dependencies are inferred from the claim text.