From 1674d2d45c7ef398a1ba940d868d322551d3f6ba Mon Sep 17 00:00:00 2001
From: joajfreitas <joaj.freitas@gmail.com>
Date: Wed, 12 Sep 2018 15:37:06 +0100
Subject: [PATCH] minor update to slave and battery

---
 battery.md | 62 ++++++++++++++++++++++++++++++++++++++++++
 slave.md   | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 141 insertions(+)
 create mode 100644 battery.md
 create mode 100644 slave.md

diff --git a/battery.md b/battery.md
new file mode 100644
index 0000000..5bcf12b
--- /dev/null
+++ b/battery.md
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+# Battery
+
+----
+- TOC
+{:toc}
+----
+
+## Requirements
+
+- Have 8 kWh.
+- Have same eletrical interface as FST08e.
+- Be cool.
+- Follow a lot of rules.
+- Allow some level of regeneration.
+
+## Design focus
+
+- Reliability. Very similar to FST08e.
+- Better electronics.
+- Better code.
+- Keep compatibility.
+
+## Interactions
+
+- Chassis
+- [DCU](dcu)
+- Inverters
+- Fans
+- VD energy and other shit about perfomance.
+
+## Problems with older version
+
+### Eletronics
+
+- The energy meter on the HV monitor has some problems
+- There is an high voltage cable on the middle on the LV cables.
+
+
+### Cooling
+
+- [DCDC](dcdc) aquece a lot and heat the stack behind them.
+- [HV monitor](hv_monitor) heats a lot too. Indicator uses too much current.
+- The spacing of the cells is not correct.
+
+
+### Mechanical
+
+- Final connection shakes. Maintenance plugs fuck cell pads.
+- Maintenance plugs have no keying (wrong configurations).
+- Bolts are metallic, floating and very imperial.
+- Current sensor and fuse attachement are a bit bad.
+- Battery is a little bit soft, may need some reinforcement.
+
+
+
+## Validation/Quality Control
+
+## Documentation
+
+- Drawings of all parts.
+- Load cases of all mechanical parts.
+- Requirements for all PCB.
diff --git a/slave.md b/slave.md
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index 0000000..00a9d0b
--- /dev/null
+++ b/slave.md
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+# BMS Slave
+
+----
+- TOC
+{:toc}
+----
+
+## Requirements:
+ 
+- Continuously measure:
+    
+- All cell voltages(12), from 0 to 4.5 VDC
+- Temperatue of 12 cells from -20 to 80 ºc
+- Measure the air temperature around the slave
+- Capable of balancing
+- Pins embebed in the bus bar match the sockets placed in the Slave Module
+- Slave Module must be fully enclosed inside stack container 
+- Must suport communication with [Master](master) module
+- Slave must be directly powered from the stack
+- Isolation barrier for each module of at least 12 x Cell_Max_Voltage
+    
+## Rules to follow:
+
+- For lithium based cells: the temperature of at least *30%* of the cells 
+    equally distributed within the accumulator container(s), see **EV6.8.2** 
+- Cell temperature must be measured at the negative terminal of the
+respective cell and the sensor used must be in direct contact with either 
+the negative terminal or less than *10mm* away from the terminal on the 
+respective busbar, see **EV6.8.3**
+- The **maximum cell temperature is 60 ºC** or the limit stated in the cell data
+sheet, whichever is lower, see **EV6.8.4**
+- BMS cell voltage measurement inputs, temperature measurement inputs and 
+supply voltage of decentralized BMS slaves may be rated below the maximum 
+TS voltage if the team has proven by calculations in the 
+Electrical System Form (ESF), that the input voltage rating is reasonably 
+chosen, see **EV6.8.7**
+- Grounding, see **EV3.1**
+- Overcurrent Protection, **EV3.2.5**   
+- Rated for the maximum possible temperature which may occur
+during usage, see **EV5.1.3**
+- Fully assembled slave boards must be available for inspection, see **EV5.3.6**
+ 
+## Design Objective:
+ 
+- Reliability
+- Easy assembly/dis asembly 
+- Safe
+- Easy maintenance/packaging
+- Manufacture time due to high volume(12 Slave modules)
+
+## Problems with previous versions/ things to pay attention:
+ 
+- Lack of study of temperature measurement solutions, some error to be noticable
+- Lack of tools for quality control
+
+## Interactions:
+ 
+- Alignement with bus bar voltage measurement pins
+- Stack enclosure constrains
+- Master Module comunication(SPI)
+
+## Validation / Quality control:
+ 
+- Modular TestBench("jig") for testing temperature and voltage sensors on any Slave module Design(**YET TO BE MADE**)
+ 
+ 
+## Needed documentation:
+ 
+1.    Iterações
+2.    Design (procedimento geral para chegar á iteração final)
+3.    Subdivisões do sistema
+o  Justificação da divisão (inserts, tubo, rolamento, rod-end)
+o  Justificação da escolha e datasheets dos componentes comprados (tubo, rod-end, rolamento, cola)
+o  Justificação dos processos de ligação (cola)
+o  Características de manufatura das peças não compradas (desenhos técnicos, tolerância, anodização, rosca de colagem, ligação com a push)
+o  Definição do processo de assembly (processo de colagem, colocação da rótula, assegurar dimensões do triângulo)
+4.    Plano de Manufatura
+5.    Análise de fiabilidade e planeamento de triângulos suplentes
+6.    Controlo de Qualidade
-- 
GitLab