LiBAL n-BMS™ - LiTHIUM BALANCE · 2020. 5. 5. · LiBAL n-BMS ™ Next Generation ... Number of...
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LiBAL n-BMS™ Next Generaon Baery Management System SAFETY ISO 26262 rated components and design Self-test and redundancy in safety crical measurement circuits Open circuit detecon BATTERY LIFE High frequency sampling of current (100 mS) allows opmal detecon of pulses Powerful and intelligent dissipave balancing at 200mA per cell -40° to +85°C operaonal range PERFORMANCE ±1,6 mV at 25 °C at individual cell level Opmized low power consumpon mode ±1 °C accuracy in temperature measurement Advanced SOC algorithm with OCV compensaon Advanced SOH algorithm Advanced SOP Algorithm USABILITY RTC + logging of events, errors and warnings BMS Creator PC tool for easy configuraon Oponal current sensing (Hall effect or Shunt) CAN UDS tool Applicaons INTRODUCTION The networked LiBAL n-BMS has been developed around the new communicaon standard isoSPI, which essenally does not require programmable processors on CMU’s (Slave PCB) in the BMS network. In any applicaon, this is a huge advantage, because it does not require soſtware on the CMU and therefore greatly simplifies in-field main- tenance. In addion, the isoSPI communicaon network ensure the most cost efficient communicaon circuit in the market. The n-BMS is developed to meet all relevant automove requirements. ISO 26262 compliant design with key compo- nents such as Processor, ASIC and PSU carefully selected to meet the funconal safety at ASIL C level. The n-BMS can be configured with up to 32 CMU’s. Each CMU can monitor up to 12 cells in series and thus the n-BMS can monitor in total up to 384 cells in series. The n-BMS can measure temperature with an accuracy up to ±1 C and SOC accuracy to within ±0,5%. The n-BMS Creator™ soſtware, enable the baery designer to create a unique Baery design based on the n-BMS hardware. The n-BMS Creator™ soſtware facilitates a unique safety strategy, baery performance opmisaon, charge me reducon as well as ensuring the best possible baery life.
Transcript of LiBAL n-BMS™ - LiTHIUM BALANCE · 2020. 5. 5. · LiBAL n-BMS ™ Next Generation ... Number of...
LiBAL n-BMS™Next Generation Battery Management System
SAFETYISO 26262 rated components and designSelf-test and redundancy in safety critical measurement circuitsOpen circuit detection
BATTERY LIFEHigh frequency sampling of current (100 mS) allows optimal detection of pulsesPowerful and intelligent dissipative balancing at 200mA per cell-40° to +85°C operational range
PERFORMANCE±1,6 mV at 25 °C at individual cell levelOptimized low power consumption mode±1 °C accuracy in temperature measurementAdvanced SOC algorithm with OCV compensationAdvanced SOH algorithmAdvanced SOP Algorithm
USABILITYRTC + logging of events, errors and warningsBMS Creator PC tool for easy configurationOptional current sensing (Hall effect or Shunt)CAN UDS tool
Applications
INTRODUCTIONThe networked LiBAL n-BMS has been developed around the new communication standard isoSPI, which essentially does not require programmable processors on CMU’s (Slave PCB) in the BMS network. In any application, this is a huge advantage, because it does not require software on the CMU and therefore greatly simplifies in-field main-tenance. In addition, the isoSPI communication network ensure the most cost efficient communication circuit in the market.
The n-BMS is developed to meet all relevant automotive requirements. ISO 26262 compliant design with key compo-nents such as Processor, ASIC and PSU carefully selected to meet the functional safety at ASIL C level.
The n-BMS can be configured with up to 32 CMU’s. Each CMU can monitor up to 12 cells in series and thus the n-BMS can monitor in total up to 384 cells in series.
The n-BMS can measure temperature with an accuracy up to ±1 C and SOC accuracy to within ±0,5%.
The n-BMS Creator™ software, enable the battery designer to create a unique Battery design based on the n-BMS hardware. The n-BMS Creator™ software facilitates a unique safety strategy, battery performance optimisation, charge time reduction as well as ensuring the best possible battery life.
PassengerCar Truck Battery Performance
Industrial Drone
Cleaning machines BusAGV (Automated guided vehicle)
Train Forklift Marine Vessel
Motorbike Scooter Battery Safety
Charge Eciency
Battery Life
UtilityVehicle
PassengerCar Truck Battery Performance
Industrial Drone
Cleaning machines BusAGV (Automated guided vehicle)
Train Forklift Marine Vessel
Motorbike Scooter Battery Safety
Charge Eciency
Battery Life
UtilityVehicle
PassengerCar Truck Battery Performance
Industrial Drone
Cleaning machines BusAGV (Automated guided vehicle)
Train Forklift Marine Vessel
Motorbike Scooter Battery Safety
Charge Eciency
Battery Life
UtilityVehicle
PassengerCar Truck Battery Performance
Industrial Drone
Cleaning machines BusAGV (Automated guided vehicle)
Train Forklift Marine Vessel
Motorbike Scooter Battery Safety
Charge Eciency
Battery Life
UtilityVehicle
[email protected]: +45 5851 5104
LiTHIUM BALANCE A/SHassellunden 13 2765 Smørum, Denmark
Litt
. no.
LIT
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LiBAL n-BMS™Next Generation Battery Management System
PARAMETERS SPECIFICATIONSMaster Control Unit (MCU)Power supply 6-35 VNumber of CMU’s supported 1-32Number of cells in series for total system 384Range of high voltage measurement 0 - 1000 VDCAccuracy of high voltage measurement ±1 VDCRange of current measurement input Shunt ±150 mVAccuracy of current measurement input Shunt ±1.0 mV -40 – 85 °CRange of current measurement input (Hall effect sensor) 0.0 – 5.0 V, 0.0 -2.5 V current in, 2.5 V – 5.0 V current outAccuracy of current measurement input (Hall effect sensor) ±1.5 mV -40 – 85 °CAccuracy of temperature (NTC) ±1 °C -40 – 85 °CGround fault detection (leakage) levels 250/500/1000 Ω/V Between GND and HV+/-Standby Consumption <8,5 mW at 12V supplyActive Consumption <3,5 W at 12 V supplyCommunication interface, master-slave isoSPISupported CAN communication type CAN 2.0A/B 11 bit and 29 bit IDsSupported CAN speeds 125, 250, 500, 1k kbit/secNumber of CAN ports 2, one isolated CAN, one non-isolated CAN.External GPIOs 16 (Active Low)Charger control interfaces CANCell Monitoring Unit (CMU)Number of cells per unit 3-12 Cells (minimum 11 V, to power the CMU)Detectable cell voltage 0 - 5 VDCNumber of temperature sensors per unit 4 (NTC based)Cell balancing topology Dissipative Cell balancing current 200 mA, at cell voltage 4.2 VCell voltage typical sampling time 100 msAccuracy of single cell voltage ±1,6 mV at 25 °CRange of Temperature measurements -40 to +85 °CAccuracy of cell temperature (NTC) ±1 °C -40 – 85 °C Communication interface isoSPI (Max. 5 m shielded cable between boards)Standby Consumption <269µW (with 12 cells @ 3,2 V)Active Consumption <326 mW (with 12 cells @ 3,2 V)Patents ZT 200780048774, EP 0781788.6, US 8.350.529
41,775
5,00
75,00
70,00
1,45
80,0052,55
24,83
6,23
R2,00
ø3,5
n-BMS MCU
151,0096,00
166,10
68,00 8,00
19,80
16,43
12,53
32,70
15,80
36,25
24,23
92,00
6,75
4,00
ø4,30
n-BMS CMU 100808 Dimensions in MM
