Supplementary battery recharging system for vehicle and method of controlling the same
AssigneeHyundai Motor Company
InventorsHwan Hwang, Dong Jun Shin, Ho Joong Lee, Jun Yeon Park, Chang Ryeol Yoo
Life of this patent
Estimating the term…
Abstract
A method of efficiently recharging a supplementary battery of a vehicle can recharge the supplementary battery with power from a main battery. A method of controlling a supplementary battery recharging system includes: acquiring charged current of a supplementary battery; starting a timer when the charged current exceeds a limit range; updating a current limit on the basis of a timer value and temperature information of the supplementary battery; and controlling a target voltage using the updated current limit.
Claims19
A method of controlling a supplementary battery recharging system for a vehicle, comprising the steps of:
- acquiring charged current of the supplementary battery;
- starting a timer when the charged current exceeds a limit range;
- updating a current limit on the basis of a timer value and temperature information of the supplementary battery;
- and
- controlling a target voltage using the updated current limit.
A non-transitory computer readable medium containing program instructions executed by a processor, the computer readable medium comprising:
- program instructions that acquire charged current of a supplementary battery;
- program instructions that start a timer when the charged current exceeds a limit range;
- program instructions that update a current limit on the basis of a timer value and temperature information of the supplementary battery;
- and
- program instructions that control a target voltage using the updated current limit.
A supplementary battery recharging system for a vehicle, comprising:
- a supplementary battery;
- a low voltage DC-DC converter (LDC) for charging the supplementary battery with power of a main battery;
- a supplementary battery sensor for acquiring state information of the supplementary battery;
- and
- an LDC controller for acquiring charged current from the supplementary battery, starting a timer when the charged current exceeds a limit range, updating a current limit on the basis of a timer value and temperature information of the supplementary battery acquired from the supplementary battery sensor, and controlling a target voltage of the LDC using the updated current limit.
Dependencies are inferred from the claim text.