Li-Ion Battery Available Charge Gauge

SYSTEM

LI-ION BATTERY AVAILABLE CHARGE GAUGE : System Description


SYSTEM DIAGRAM







DESCRIPTION

- LBC transmits a Li-ion battery available charge signal to VCM via EV system CAN communication.
- VCM transmits a Li-ion battery available charge signal to the combination meter via CAN communication.
- The combination meter indicates the Li-ion battery available charge to the Li-ion battery available charge gauge according to the Li-ion battery available charge signal received via CAN communication.
NOTE:
- Li-ion battery available charge signal is a signal which requests the number of lighting segments of the Li-ion battery available charge gauge. The number of lighting segments is judged by LBC, according to Li-ion battery available charge level. When receiving a Li-ion battery available charge signal, the combination meter shows the number of lighting segments requested via Li-ion battery available charge signal on the Li-ion battery available charge gauge.
- Li-ion battery available charge level is displayed by the ratio to the full capacity.
- Since Li-ion battery capacity changes with Li-ion battery temperature, the indication of Li-ion battery available charge gauge may change.

SIGNAL PATH







LI-ION BATTERY AVAILABLE CHARGE GAUGE PARAMETER






NOTE:
Since the indication method of available charge level is different between Li-ion battery available charge gauge and quick charger, the above Li-ion battery available charge level (%) does not agree with levels displayed on quick charger.

RELATIONSHIPS OF LI-ION BATTERY CAPACITY LEVEL GAUGE AND LI-ION BATTERY AVAIL-


ABLE CHARGE GAUGE







LI-ION BATTERY AVAILABLE CHARGE GAUGE INDICATION CHANGE CAUSED BY TEMPERA-


TURE CHANGE