US 11,901,537 B2
Systems and methods for purging air from battery cooling systems
Jonathan M. Baumann, Hanna City, IL (US); and Jared Lamkin, Ladd, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Dec. 21, 2021, as Appl. No. 17/558,306.
Prior Publication US 2023/0198050 A1, Jun. 22, 2023
Int. Cl. H01M 10/6568 (2014.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01)
CPC H01M 10/6568 (2015.04) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 2220/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A battery cooling system, comprising:
one or more flexible bladders each configured to contact a set of batteries, wherein the flexible bladders comprise a serpentine fluid pathway;
one or more pumps in fluid communication with the one or more flexible bladders;
one or more processors; and
one or more memory devices having stored thereon instructions that when executed by the one or more processors cause the one or more processors to:
while the one or more pumps operate at a first constant speed, receive a first signal;
in response to receiving the first signal, perform operations including:
operate the one or more pumps at a second selected speed for a first time interval;
wait a second time interval with the one or more pumps off or at a third reduced speed relative to the second selected speed; and
repeat the steps of operating and waiting for a predetermined number of times;
receive a second signal; and
in response to receiving the second signal, perform operations including:
operate the one or more pumps at the first constant speed.