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CAN 2.0 bus is used in our special battery management system(BMS) for communication. LED display is used to display battery voltage, current, capacity and temperature etc. in real-time. The BMS can communicate synchronously with chargers and motor controllers. Detailed performances as follow:

1.Summarize

GTBMS005A-MC11 a battery management system consists of a colorful led
screen with touch panel, a GTBMS005A-MC11 host controller, GTBMS005A-VT
voltage, temperature sampling modules and current sampling module , detecting all
cells' voltage of the battery pack, total current of the pack and the surrounding temperature. Detailed performances as follow:

A. The host master consists of a colorful screen and managing calculator, the first page displays total voltage and current of the pack, storage electrical quantity(SOC), the  highest cell and its number, the lowest cell and its number and maximal temperature, you  can examine all the sampled data that includes each cell's voltage, temperature, capacity and so on through the screen; you can set the system running parameters through the  screen, the running parameters includes the choice whose number of batteries that sampling modules manage, cell's voltage upper/lower limit alarm, temperature upper limit alarm, current upper limit alarm, voltage difference upper limit alarm, SOC initialization, rated capacity, storage electrical quantity calibration coefficient, system clock and so on .

B. System voltage and the temperature collect board adopt modularization structure; every module manages 10 battery and 1 road temperature. The battery collecting board but adapting to an electric motor car distributes broader characteristic, follow the battery box to disperse installation, between require mains lead and a little data communication to
link up only.

C. The amount of voltage and temperature

D. The host provides CAN Bus which ure sampling boards management battery can be set from 1~ N (N ≤ 10) flexible, connecting method adopts N +1; Temperature can be set to have or have no depends on need.

E. Current sampling board provides a loop current sampling data, Hall sensor is used
as current sensor.

F. is compatible with ISO 11898 standard completely.

G. The host provides USB interface that can be connected with computer, and provides data saving function, the saving time is 30s; it can save all data within 7 days and receive all data through the BMS application software.

H. The host provides alarming interface, voltage upper/lower limit, temperature upper limit alarm, over current alarm, etc.

Major technical target:

Power supply-----------------------------------user provides DC12V

Range of voltage measuring----------------------------------0~+5 V

Voltage measuring accuracy----------------------±(0.3% FS+0.2% RD)

Voltage display resolution-------------------------------------1mV

Hall sensor
Current measuring range------------------------------------0~500 A
Current measuring accuracy----------------------------------±0.5%
Current display differentiate rate----------------------------0.1A

Temperature measuring range---------------------------10～85 degree

Temperature measuring accuracy---------------------------±1 degree

Minimum sampling period (voltage)------------------------------0.5s

Ampere-hour accumulative total minimum period------------------0.1s

Ampere-hour display accuracy----------------------------------0.1Ah

Ampere-hour measuring upper limit--------------------------->1000Ah

Alarm contact parameter
The largest on-off voltage------------------------------------30Vdc
the largest on-off current---------------------------------------1A