Quick Drop Battery System for Electric Passenger Cars DongFeng Motor Corporation

Format:

Conference/Event

Author/Creator:

Liu, Liu, author.

Contributor:

Jiang, Xin

Liu, Kun

Pan, Lina

Wang, Yujiao

Xia, Yang

Conference Name:

International Powertrains, Fuels & Lubricants Meeting (2017-10-16 : Beijing, China)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

Quick drop battery system was the core components of the electric vehicles, the reliability and compatibility of quick drop battery system was directly related to the popularization and application of electric vehicles. In this article, a split type battery management system and a split type high voltage architecture was used to achieve better charging compatibility. Meanwhile the number of fast switching connector's pin is reduced and the plug life was prolonged to more than 10000 times by using floating structure. For battery management system (BMS), the state of charge (SOC) estimation was based on dynamic voltage correction, and make estimation accuracy reach to less than 5%. Rotary slot limit and fast locking mechanism had been designed for the first time and the precision of battery system assembling could control within 3mm, hence the floating structure's damage could be reduced and the mechanical life could be enhanced. The cumulative mileage of vehicles equipped with this battery system had been over 24 million km, while the longest single mileage was over120, 000 km. The reliability of the system and the switching time within 3 minutes had reached the leading domestic level

Notes:

Vendor supplied data

Publisher Number:

2017-01-2453

Access Restriction:

Restricted for use by site license