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ELECTRIC VEHICLE MANAGEMENT SYSTEM V3
Remember not to have any BMS module's wiring harness span any auxiliary contactor (or
maintenance switch), or the BMS module becomes the only conduction path for the traction
circuit when the contactor opens, which exposes the module to damaging voltages!
EVMS Monitor
The EVMS Monitor is used to remotely interact with other devices on the CAN bus, both
for viewing operating data and to edit settings. The Monitor has various different pages of
information as described below.
E V MS: Runn i n g
V o l t a g e
The main display, showing EVMS status at the top,
14 8 V
instantaneous voltage, current, power, auxiliary
C u r r e n t
battery voltage, temperature, isolation, and State of
42 A
Charge (SoC).
P o w e r
6. 2 k W
Touching the left or right half of the display will swap
A u x V
Temp
Is o l
S o C
to the previous or next display page respectively.
1 3 . 5 V
25C
10 0 %
9 0 %
E V MS: Runn i n g
P a c k V o ltage Te m p e r a t ur e
If no current sensor is present on the CAN bus, the
148V
25˚C
EVMS is unable to show current or calculate power or
A u x v o l tage
Is o l a t i o n
state of charge, so a different page is shown with only
13.5V
100%
pack voltage, temperature, aux voltage, isolation, and
a bar graph of all individual cell voltages.
BM S S u m m a ry: 4 5 c e l l s
BMS summary page, showing the total number of
cells being monitored, the average voltage per cell,
A v g v o l t age
Avg t e m p
3.32V
28˚C
the average of any BMS temperature sensors, and the
voltage and location of both the lowest and highest
M i n v o l t age
Max v o l t a g e
3.31V
3.33V
cells. M is Module ID, C is the cell number.
M 0 C 4
M2 C 8
Along the bottom is a graph of all cell voltages. Green
bars indicate cells within range. Bars will change to
blue for undervoltage cells, orange for cells being
balanced, and red for overvoltage cells.
9
B M S D e t a il s : M o d u l e 1
Detailed information for a single BMS module,
C e l l v o l t a g e s
showing voltage of each cell (to 3 decimal places) and
3 . 3 2 3 3 . 3 3 6 3 . 3 2 1 3 . 3 1 7
two temperatures if available. Orange bars beneath
3 . 3 3 2 3 . 3 1 6 3 . 3 2 7 3 . 3 2 3
the voltages indicate if cell shunts are currently on.
3 . 3 1 8 3 . 3 2 2 3 . 3 3 1 3 . 3 2 7
Tap the Prev or Next buttons to change which BMS
T e m p 1 : 2 3 ˚ C T e m p 2 : 2 5 ˚ C
module is being viewed, or anywhere else in the
P r e v
N e x t
display to change Monitor pages as usual.
T C C h a rg e r S t a t u s
O u t p u t V o l t s O u t p u t A m p s
If a TC Charger is present on the CAN bus, it will be
149V
19.4A
autodetected and a new page of data made available
T a r g e t V o l t s T a r g e t A m p s
on the Monitor showing charger's output voltage and
154V
20.0A
current, the target voltage and current being requested
by the EVMS, and the charger status at the bottom.
C h a r g e r S t a t u s : O K
M C 6 0 0 C S t a t u s
If a ZEVA motor controller is present on the CAN bus,
B a t t V o l t s
B a t t A m p s
it will be autodetected and a new page of data made
149V
150A
available on the Monitor showing battery voltage,
M o t o r V o l t s
M o t o r A m p s
battery current (into the motor controller only),
75V
300A
motor voltage, motor current, the controller's internal
T e m p
T h r o t t l e
42˚C
60%
temperature, the current throtttle position, and the
status at the bottom.
S t at u s O K
If the EVMS detects an error, a warning page will
be displayed. In most cases, the error can be
acknowledged/reset by pressing Select. Some critical
W a rn i n g :
errors can not be dismissed until the error condition
C h a r g e e n d e d b y B M S
is corrected.
For a full list of errors you might see, please refer to
section Error Detection.
ZERO EMISSION VEHICLES AUSTRALIA
10
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