Intelligent battery sensor

The intelligent battery sensor (IBS) evaluates the current quality of the battery. The IBS has its own control module. The IBS is part of the battery negative terminal. The IBS regularly measures (cyclically) the following values:

• Battery voltage
• Charge current
• Discharge current
• Temperature of the battery
  Fig 1: Identifying Intelligent Battery Sensor, Ground Lead And Bit-Serial Data Interface

  Courtesy of BMW OF NORTH AMERICA, INC.