Rechargeable energy storage system reess

What is a Reess battery pack?

“REESS” means the rechargeable energy storage system that provides electric energy for electric propulsion of the vehicle. Battery Management System (BMS) and Battery Pack are the two main components of the REESS. As UNECE mentions on the document titled Terminology related to REESS a battery pack may be considered as a REESS if BMS is integrated.

What are the requirements of a rechargeable energy storage system?

Part II: Requirements of a Rechargeable Energy Storage System (REESS) with regard to its safety No restriction to high voltage batteries, but excluding batteries for starting the engine, lighting,. Amend an annex with test procedures 7 Kellermann/24.05.2012/GRSP www.bmvbs.de Requirements in Part II

What is a Reess battery test?

Its purpose is to verify the performance of the overcurrent protection system during external charging of REESS. During the test, the battery is charged with the maximum charging current, with the charging current increased over five seconds from the highest normal charge current to the overcurrent level.

What are the Reess requirements?

Requirements applicable to the REESS include accumulation of gas, warning in the event of failure, warning in the event of low energy content, and compliance with Part II of this Regulation. Part II covers requirements of the REESS with regards to its safety.

What happens after charging a Reess battery?

Charging is terminated when the overcurrent protection of the battery terminates the charging current, or the battery temperature is stabilized over two hours. Immediately after the termination of charging, the REESS is subject to a standard discharge followed by a standard charge, if not inhibited, and then observed for one hour.

What is a Reess test?

Typically done on a sled test machine. Mechanical Integrity – This test verifies the safety performance of REESS under contact loads which may occur during a vehicle crash. 100KN crush using a 75mm radius crush platen. Fire Resistance – This test verifies the resistance of the REESS against exposure to fire from outside vehicle due to fuel spill.