Nissan Leaf. Manual - part 954

MWI

SYSTEM

MWI-19

< SYSTEM DESCRIPTION >

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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 >

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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