Li-Ion Battery Temperature Gauge

SYSTEM

LI-ION BATTERY TEMPERATURE GAUGE : System Description


SYSTEM DIAGRAM







DESCRIPTION

- LBC transmits a Li-ion battery temperature signal and a Li-ion battery gradual capacity loss signal to VCM
via EV system CAN communication.
- VCM transmits a Li-ion battery temperature signal and a Li-ion battery gradual capacity loss signal to the combination meter via CAN communication.
- The combination meter corrects a Li-ion battery temperature recognized by a Li-ion battery temperature signal, based on battery capacity recognized by a Li-ion battery gradual capacity loss signal. The combination meter then judges the number of segments to be lit.
NOTE:
The number of lighting segments of the Li-ion battery temperature gauge depends on gradual loss of Li-ion battery capacity.

SIGNAL PATH







RELATIONSHIPS OF THE NUMBER OF LIGHTING SEGMENTS OF LI-ION BATTERY TEMPERA-


TURE GAUGE AND LI-ION BATTERY TEMPERATURE






NOTE:
- Li-ion battery temperature gauge shows Li-ion battery temperature by correcting it according to the battery capacity. Consequently, the number of lighting segments of Li-ion battery temperature gauge can be different regardless of the same Li-ion battery temperature.
- This graph shows corrected temperatures. These do not agree with the CONSULT temperature shown in data monitor item "BAT TEMP".