Initiatives for societal issues | EV/BMS

EV: Electric Vehicle
BMS: Battery Management System

- Reducing environmental impacts

Epson’s Real Time Clock (RTC) modules are used in EV’s BMS to manage the charge/discharge status of lithium-ion batteries. This helps contribute to the spread of EVs, reducing CO2 emissions.

Epson devices contribute to optimal battery operation in electric vehicles.

Epson’s RTC Modules enhance Battery Management Systems

- Optimal battery maintenance

When the engine is turned off, the RTC module acts as a timekeeper for the BMS, waking it up from sleep to periodically monitor the battery to ensure optimal battery maintenance and operation.

- Low consumption operation

The low-power consumption operation is enabled by an Epson in-house developed IC to help reduce dark current *1) of the entire vehicle.

- High temperature operation

Batteries get very hot. RTC supports with +125℃ operation.

*1) What is dark current?

It is the minimum amount of current that is required even when the system is completely stopped.