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Business Area

EV Battery Pack Design and Manufacturing

EV battery system R&D, custom design, production and maintenance

PMGROW has produced custom battery packs for various EV platforms from class 7-8 buses and trucks to personal mobility vehicles
for 10+ years. Among others, battery packs for large- and medium-sized electric buses are main products today.

PMGROW produces and supplies custom battery packs that are optimized for each EV. Packs are available
with every cell form factor: pouch, prismatic and cylindrical.

  • STEP 1

    Design

  • STEP 2

    Design Review

  • STEP 3

    Design Validation

  • STEP 4

    Design Completion

  • STEP 5

    Production Validation

  • STEP 6

    Production

Features and Strengths

  • Safety

    • - KATRI (Korea Automobile
      Testing & Research Institute)
      verified
    • - Designed according
      to Samsung SDI’s CET
      (Customer Environment Test)
  • Sensing

    • - Pack current and voltage
      sensing
    • - Cell voltage sensing
    • - Temperature and insulation
      resistance sensing
  • Prediction

    • - SOC, SOH and remaining
      driving mileage prediction
      in detail
  • Monitor

    • - Distant monitoring
      of battery status in real time
  • Charge

    • - Multiple charging methods
      supported

EV Battery Pack Design and Manufacturing

PB-EV-20-30 PB-EV-18-28-A PB-EV-18-31-B PB-EV-19-30
Customer T.S. ECO ENERGY (BLK)
11m low-floor bus
JJ Motors (BAICChangzhou)
11m bus
Hanshin Motors (Zhongtong Bus,
AVIC Bus) 11m Bus
Bumhan Motors (Huanghai Automobile)
11m low-floor bus
Delivery Year 2020 2018 2018 2020
Nominal Voltage (V) 604.8V (168S) 294.4V 331.2V 604.8V
Rated Capacity (Ah) 49.5Ah (1P) 94Ah 94Ah 49.5Ah(1P)
Total Energy Capacity (kWh) / DOD 100% 29.94kWh 27.67kWh 31.13kWh 29.94kWh
Dimension (mm) 1060*630*320 (mm) 1076mm*790mm*545mm 1076mm*790mm*545mm 1430*446*396 (mm)
Weight (kg) 300Kg 275kg 321kg 300kg
Cooling Method Liquid Cooling Forced Air Cooling Forced Air Cooling Forced Air Cooling
IP Rating IP67 IP44 IP44 IP44
Note
  • - Samsung SDI 12s1p
    (Prismatic 49.5Ah Cell)
  • - High-density cells applicable for electric buses (300kWh, 10packs)
  • - When supplied for electric buses, 1 set consists of 2 battery packs,
    as in 117kWh (2 sets) and 176kWh (3Sets)
  • - Samsung SDI 12s1p
    (Prismatic 49.5Ah Cell)
  • - High-density cells applicable for electric buses (300kWh, 10packs)
Slave BMS Local Master BMS
CAN type
(Cell monitoring & MCU embedded)
UART type
(Simple structure, budget model)
Integrated Type
(For electric bicycles and tricycles)
Integrated Type
(For electric bicycles and tricycles)
Model Name SL10CWJBT SL12CW SL12CW MA3PWJBAT
Release Date 2019.08 2019.01 2019.01 2019.08
Cell Sensing 10CH 12CH 12CH -
Temp Sensing 1CH 2CH 2CH 5CH
Cell Balance Passive(210mA) Passive(90mA) Passive(90mA)
MCU 32-bit Microcontroller - - 32-bit Microcontroller
Communication CAN
2.0B(125Kbps)
UART (1Mbps) CAN
2.0B(500Kbps)
UART(115200bps)
CAN
2.0B(250Kbps)
CAN
2.0B(125Kbps)
RS485
Input Voltage 12V ~ 24V 12V ~ 24V 12V ~ 24V
Operation Volt. 9V ~ 65V
Operating Temp -20℃ ~ 60℃ -20℃ ~ 60℃ -20℃ ~ 60℃
Size 128mm x 113mm 126mm x 110mm 121mm x 151mm 193mm x 143mm
Features
  • Cell Voltage Meas
  • Cell Temp Meas
  • Cell Balance
  • Indicator LED
    • - Operating LED
    • - Communication LED
  • External Port
    • - MUC Update Port
    • - Monitoring Port
  • Cell Voltage Meas.
  • Cell Temp Meas.
  • Cell Balance
  • Cell Alerts
    • - OVF / UVF
    • - OFP / UTF
    • - Cell △V
  • Main Relay Control
  • Pre-charge Control
  • Pack Current Meas.
  • Pack Temp Meas.
  • Estimate SOC
  • Estimate SOH
  • Protection
    • - OVF / UVF
    • - OFP / UTF
    • - Cell △V
  • Always On Monitoring
  • Main Relay Control
  • Pre-charge Control
  • Pack Current Meas.
  • Pack Voltage Meas.
  • Pack Temp Meas.
  • Estimate SOC
  • Estimate SOH
  • Protection
    • - OVP / UVP
    • - OCP
    • - OTP / UTP
    • - Cell △V
  • External Port
    • - MUC Update Port
    • - Monitoring Port

BMS 모니터링 시스템

이차전지 배터리의 상태정보를 실시간으로 전송하고 분석 진단하여 배터리의 상태를 관리하는 시스템

주요특징

  • - 실시간 배터리 셀 데이터 분석을 통한 배터리 안정성 확보
  • - 일시적인 오류 값이 아닌 이력기반의 데이터 분석/진단으로 신뢰성 확보
  • - 배터리 상태 예측을 통해 운영 안정성 및 유지보수 용이성 제공

주요기능

  • - 실시간 배터리 모니터링
  • - 측정데이터 상세이력 및 알람이력
  • - 데이터별 챠트보기 등