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US 2024/0198856 A1Published application
Balancing of an electrical energy storage using a low voltage network
AssigneeVolvo Truck Corporation
InventorsRingolds JARGANS, Pavan BALRAM, Brajesh SINGH
Life of this patent
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Abstract
Balancing of rechargeable electrical energy storages is described. In particular aspects, the disclosure relates to balancing of an electrical energy storage using a low voltage network.
Claims20
A computer system comprising a processor device configured to:
- detect a charge parameter imbalance between rechargeable electrical energy storage packs of a vehicle;
- in response to detecting the imbalance, the processor device is configured to, until each electrical energy storage pack is at a target charge parameter level:
- (A) connect one or more of the electrical energy storage packs to a bi-directional DC/DC converter connectable to a low voltage electrical energy storage to transfer energy from the one or more electrical energy storage pack to the low voltage electrical energy storage via the bi-directional DC/DC converter,
- (B) detect that either the low voltage electrical energy storage is at an upper-level capacity or that one of the one or more electrical energy storage pack is discharged to the target charge parameter level,
- (C) disconnect the one or more electrical energy storage pack from the bi-directional DC/DC converter,
- (D) connect at least one further electrical energy storage pack to the bi-directional DC/DC converter to transfer energy from the low voltage electrical energy storage to the at least one further electrical energy storage pack via the bi-directional DC/DC converter,
- (E) detect that either the low voltage electrical energy storage is at lower level capacity or that the one of the at least one further electrical energy storage pack is at the target charge parameter level,
- (F) disconnect the at least one further electrical energy storage pack from the bi-directional DC/DC converter.
5 more elements
A computer-implemented method, comprising:
- detecting, by a processor device of a computer system, a charge parameter imbalance between rechargeable electrical energy storage packs of a vehicle;
- in response to detecting the imbalance and until a target charge parameter level is reached for each of the electrical energy storage packs:
- (A) connecting, by the processor device, one or more of the electrical energy storage packs to a bi-directional DC/DC converter connectable to a low voltage electrical energy storage to transfer energy from the one or more electrical energy storage pack to the low voltage electrical energy storage via the bi-directional DC/DC converter,
- (B) detecting, by the processor device, that either the low voltage electrical energy storage is at an upper-level capacity or that one of the one or more electrical energy storage pack is discharged to the target charge parameter level,
- (C) disconnecting, by the processor device, the one or more electrical energy storage pack from the bi-directional DC/DC converter,
- if the target charge parameter level is not reached for each of the electrical energy storage packs, (D) connecting, by the processor device, at least one further electrical energy storage pack to the bi-directional DC/DC converter to transfer energy from the low voltage electrical energy storage to the at least one further electrical energy storage pack via the bi-directional DC/DC converter,
- (E) detecting, by the processor device, that either the low voltage electrical energy storage is at lower-level capacity or that the one of the at least one further electrical energy storage pack is at the target charge parameter level,
- (F) disconnecting, by the processor device, the at least one further electrical energy storage pack from the bi-directional DC/DC converter.
5 more elements
Dependencies are inferred from the claim text.