Idneo

BMS-D1 'IDIZAN'

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bms idizan

Distributed High Voltage BMS

INTRODUCTION

Idneo’s IDIZAN is a high-accuracy distributed BMS that can manage several battery slaves with a maximum of 18 cells per slave and total voltage up
to 1500 V. The safety level of the BMS is ASIL-C rated with same actuation mechanism of the contactors and Pyro-switches.
Open API interface to include custom battery SOC, SOH or SOP algorithms.

APPLICATIONS e-Mobility

Energy Storage Systems
High voltage drive system
Advanced stationary battery

KEY FEATURES

Advanced Battery Management:

Thermal Runaway detection support: H2 sensor, internal multigas, Pressure sensor
Secure Element compliant to Battery Passport regulation

Open BMS SW environment:

Open interface for SoX custom development
Configurable main App to adapt it to the needs
Data available after integrity checks

Acquisition with Safety:

Acquisition data received with ASIL-C rated components and communication
Deterministic and real-time management of data and tasks
Safety redundant check for all sensors (Voltage, Current and temperatures)

Advanced Peripheral Control:

Contactor control with safe actuation and integrity diagnostics 1 channel of 2A nominal, 3A peak (For system disconnection purpose)
1 channel of 0.5A (For pre-charge contactor circuit)
1 channel for Heater/Cooling control up to 4A
1 channel for External supply Voltage up to 1A

Connectivity:

CAN / CAN-FD interface
RS-485 - MODBUS
Interlock master based on PWM
Heater Control based on PWM
UART service connectivity
Neopixel output for HMI

BMU SPECIFICATIONS

Communication Interface	-1 CAN/CAN-FD bus, up to 2Mb/s - MODBUS RS-485 (Optional)
Memory / Storage	Integrated EEPROM up to 256KB
Battery Passport	Integrated Secure Element (EU regulation compliant)
HMI	- 3 Internal LED’s - 2 Internal Push-buttons
Sensors	Crash Detection: - 1 External Airbag signal - 1 Internal Accelerometer Thermal runaway detection support: - Internal Pressure sensor - 1 Internal Multigas sensor - 1 External Gas sensor (Electrolyte vapor detector)
Operating Temperature	-40ºC to +85ºC
Weight	~32g
Size	150 x 120mm

BJB SPECIFICATIONS

Current measurement	Up to 2 External Current sensors (Shunt resistors or Hall sensors)
Current Measurement Resolution	16bit
Current Measurement Error	< +-0.5%
ASIL-C Rated	Redundant analog front ends
High Voltage Measurements	Up to 1500V
Isolation	Isolation with respect to Earth measured
High Voltage Readings	Up to 6 HV nodes
Temperature Readings	Up to 3 External NTCs
Operating Temperature	-40ºC to +85ºC
Size	150 x 120 mm

CMU SPECIFICATIONS

Voltage Range	3 to 76 V
Voltage Measurement Resolution	< 1 mV
Temperature Reading Resolution	< 0,5 ºC
Cell Voltage Measurement Range	-3V to 5V
Cell Balancing	Passive balancing up to 300mA peak
Power consumption	<20 uA in deep sleep mode <115 uA in sleep mode <15 mA in full power mode
Number of Cells	4 to 18 cells per slave
Operating Temperature	-40 to +85ºC
Size	110 x 60 mm
Temperature readings	-Up to 4 redundant (or 8 standalone) external NTCs for Cell monitoring - 1 internal Balancing temperature measurement

SPECIFICATIONS

Power Supply	12/24Vdc
Current resolution / precision	+- 0.1mV
Temperature Reading	Up to 6 external auxiliary NTC
Temperature Reading Resolution	<0.5ºC
Output control	- Up to 4 channels of 2A nominal, 4.5A peak (ASIL-C compliant) - 1 channel of 2A nominal, 3A peak (For system disconnection purpose) - 1 channel of 0.5A (For pre-charge contactor circuit) - 1 channel for Heater/Cooling control up to 4A - 1 channel for External supply Voltage up to 1A
Auxiliar control	Ignition signal detection Interlock generator, PWM based

ARCHITECTURE

OPEN BMS
DIAGNOSTICS	DATA MANAGEMENT	RTOS	Application SW: Custom SoX Algorithms, Battery Stateme Machine, Charging Profiles, Custom Communications (CAN DBc)
			L2: Main State Machine & Safe Operating Area (SoA)
			L1: Acquisition & Data Integrity, Diagnostics
			L0: Low level Libraries & Drivers