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Thread: Design review for 787 and “Plan B” for A350 XWB triggered by Lithium ion batteries
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Old 19th Feb 2013, 22:55
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RR_NDB
 
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Question 787 batt. redesign, K.I.S.S. version 1.0
Hi,

Why not:

2 similar batteries in parallel (same cells better separation, larger case)

Both PCB´s in separate chamber

Same (revised) BMS

Same charger (One for both batteries, "switched")

Improved sensing to shut off (battery) when one cell "starts" to fail

1 BDM per battery (MAIN)

Sturdier and vented (to outside) case.

Located nearby current positions (cable lenght optimization)

Total 4 batteries (2 MAIN, 2 APU)

Result: Better dependability, fault tolerant, graceful degradation, less fire risk, planes flying sooner (probable) and safer also because (batteries) could be derated.

Weight penalty: Aprox. "1 pax"

Please, BOMBARD it!
Last edited by Jetdriver; 19th Feb 2013 at 23:42.
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