Nissan Leaf. Manual — part 954
MWI
SYSTEM
MWI-19
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Power meter segments ON/OFF parameters
LI-ION BATTERY TEMPERATURE GAUGE
LI-ION BATTERY TEMPERATURE GAUGE : System Description
INFOID:0000000010122392
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 sig-
nal, 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-
Segments
Power (kW)
—
9
Motor power
72
P9
8
64
P8
7
56
P7
6
48
P6
5
40
P5
4
32
P4
3
24
P3
2
16
P2
1
8
P1
0
—
0
0
1
Regeneration power
6
P-1
2
12
P-2
3
18
P-3
4
24
P-4
JSNIA4530GB
Signal name
Signal path
Li-ion battery temperature signal
LBC
VCM
Combination
meter
Li-ion battery gradual capacity loss signal
LBC
VCM
Combination
meter
MWI-20
< SYSTEM DESCRIPTION >
SYSTEM
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 differ-
ent 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”.
LI-ION BATTERY CAPACITY LEVEL GAUGE
LI-ION BATTERY CAPACITY LEVEL GAUGE : System Description
INFOID:0000000010122393
SYSTEM DIAGRAM
DESCRIPTION
• LBC transmits a Li-ion battery capacity signal to VCM via EV system CAN communication.
• VCM transmits a Li-ion battery capacity signal to the combination meter via CAN communication.
• The combination meter indicates the Li-ion battery capacity to the Li-ion battery capacity level gauge accord-
ing to the Li-ion battery capacity signal received via CAN communication.
NOTE:
• Li-ion battery capacity signal is a signal which requires the number of lighting segments of the Li-ion battery
capacity level gauge. The number of lighting segments is judged by LBC, according to Li-ion battery capac-
ity. When receiving a Li-ion battery capacity signal, the combination meter shows the number of lighting seg-
ments requested via Li-ion battery capacity signal on the Li-ion battery capacity level gauge.
• When gradual loss of capacity occurs in the Li-ion battery, the number of lighting segments of the Li-ion bat-
tery capacity level gauge decreases.
AWNIA3459GB
JSNIA4489GB
MWI
SYSTEM
MWI-21
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
SIGNAL PATH
RELATIONSHIPS OF LI-ION BATTERY CAPACITY LEVEL GAUGE AND LI-ION BATTERY AVAIL-
ABLE CHARGE GAUGE
Signal name
Signal path
Li-ion battery capacity signal
LBC
VCM
Combination meter
JSNIA4494GB
MWI-22
< SYSTEM DESCRIPTION >
SYSTEM
LI-ION BATTERY CAPACITY LEVEL GAUGE INDICATION CHANGE CAUSED BY GRADUAL CA-
PACITY LOSS
LI-ION BATTERY CAPACITY LEVEL GAUGE INDICATION CHANGE CAUSED BY TEMPERATURE
JSNIA4495GB
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