	US 11,981,217 B2
	System for a drive energy store of a hybrid or electric vehicle, and method for charging a drive energy store of a hybrid or electric vehicle
Armin Friegel, Munich (DE); Robert Lustig, Munich (DE); Bernhard Sessner, Munich (DE); and Hubertus Welsch, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/272,995
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Oct. 2, 2019, PCT No. PCT/EP2019/076668 § 371(c)(1), (2) Date Mar. 3, 2021, PCT Pub. No. WO2020/088872, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10 2018 127 053.4 (DE), filed on Oct. 30, 2018.
Prior Publication US 2021/0323411 A1, Oct. 21, 2021
Int. Cl. B60L 3/00 (2019.01); B60L 53/00 (2019.01); B60L 58/13 (2019.01); B60L 58/15 (2019.01); H01M 10/48 (2006.01)

CPC B60L 3/0046 (2013.01) [B60L 53/00 (2019.02); B60L 58/13 (2019.02); B60L 58/15 (2019.02); H01M 10/48 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2250/16 (2013.01); B60Y 2200/91 (2013.01); B60Y 2200/92 (2013.01)]

13 Claims

1. A system for a drive energy store of a hybrid or electric vehicle, the system comprising:

a receiver that receives status information for the drive energy store, wherein the status information indicates whether a defect in the drive energy store is imminent; and

a charging controller that sets at least one of a maximum charging voltage and a maximum state of charge for a charging process of the drive energy store via at least one of a recovery mechanism, a load point displacement, and an external charging station to a reduced value, when the status information indicates that the defect is imminent;

wherein the charging controller sets the maximum charging voltage for the charging process to a normal value, which is greater than the reduced value, when the status information indicates that no defect is imminent, wherein the normal value of the maximum charging voltage lies within the range of 2.8 volts to 4.2 volts.