Battery Management System for Electric Vehicles

Product Features

  1. Accurate SOC estimation to show the battery pack remaining charge
  2. Battery cell-balancing, thermal management and preventing over-charge or over-discharge
  3. Support CHAdeMO DC fast charging protocol
  4. Interface with on-board charger and vehicle system control (VSC) in electric vehicles
  5. Touch screen LCD to indicate overall battery pack or individual cell status like voltage, current, temperature
  6. Two-stage warning mechanism in case battery pack is in over-temperature situation
  7. When detected battery pack temperature exceeds 60 oC, for safety protection reason, BMS will automatically cut-off battery power and disable the vehicle driving power
  8. Two-stage warning mechanism to remind drivers to recharge battery when necessary
  9. BMS and battery pack has been physically installed on MyCar and verified with continuous road test for 3 months

BMS user interface

 

BMS hardware prototype with stainless steel casing

BMS hardware prototype with stainless steel casing

 

Li-ion Battery pack design

Li-ion Battery pack design

 

Project1_4

Cooperated with EuAuto and Correctional Services Department to perform the three consecutive months road tests in Hei Ling Chau