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Battery/Monolith

2,626 bytes added, 16:08, 26 May 2020
CHAdeMO fitment notes
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[[File:2_monolith.png|thumb|right|400px|link=http://www.motorcyclistonline.com/7-cool-things-about-zero-electric-motorcycles|Monolith technical rendering published in 2016]]
The term "monolith" refers to Zero's standard [http://www.zeromotorcycles.com/technology/ Z-Force Power Pack] sealed battery assembly with specific, fixed dimensions and a single [[BMS]] with fixed communication and power interface.

A monolith is designed to package up to 4 parallel bricks, described as "4-brick" or "28s4p", referring to 4 parallel stacks of 28 cells in series.
: The 4p arrangement is a "full" arrangement: the monolith is split into 4 equal quadrants each fitting a brick.
: A "3-brick" arrangement was available for 2013-2016 S and DS bikes, leaving the forward upper quadrant empty (presumably filled with lightweight but load-absorbing material).

;Interconnects
: An interconnect wiring system electrically connects each cell across bricks that is in the same position in the series.
:* Interconnects minimize the complexity of cell balancing by ensuring that only 28 conductive connections are needed from the single [[BMS]] to keep cells balanced.
:* Interconnects also ensure that a set of 3 or 4 cells are electrically able to balance a certain amount of load, reducing stress from imbalanced load variations while running.
: Interconnects do seem to embody some specialized emergency fuse safeguards.

;Components and Weight
: 32 lb/brick ⨉ 4 brick = 128 lb
: The 4-brick monolith weight of 140 lb implies 12 lb for the base plate, BMS, dog house with contactor, current sensor, fuse, and connectors.

;Casing features
* The front face has two holes for accessing the BMS indicators, I/O port, and reset buttons.
* The front face is also removable for servicing the BMS; within, the interconnects to the cells are on the left edge (as seen while facing the battery from the front); on the top edge are connections to CANBus communications and the external power bus.
* The trailing edge of the left side of the monolith casing features an arc cutout with two holes.
*: This cutout accommodates/mounts a [[CHAdeMO]] charging inlet (and can adapt to a Type 1 or Type 2 J1772 inlet with some fabrication).
*: Threaded inserts are included for the inlet mounting, sized for M5 bolts at 80mm distance from each other (center to center).
*: Refer to [http://charge.yazaki-group.com/english/pdf/YPES-15-1407E.pdf Yazaki's CHAdeMO connector manual] for details.
* The top rear module called the doghouse contains the contactor and sensors for operating the safety limits.
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[[Category:HV Component]]

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