4.2 Battery - Movicom Electric Docs

Battery parameters are summarized in the "Battery" section:

[[image:1733755747531-978.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="471" width="800"]]

4

5

In this section:

6

7

* Voltage – voltage of the battery, V;

8

* Current – current of the battery, A;

9

* BMS consumption – current consumption of the BMS, A;

10

* Board temperature – internal temperature of the BMS, °C;

11

* Internal resistance – internal resistance of the battery, Ohm;

12

* Temperature – temperature of the battery, °C;

13

* Number of cells – number of connected cells;

14

* Minimum cell temperature, °C;

15

* # of cell with minimum temperature – number of cell with minimum temperature;

16

* Maximum cell temperature, °C;

17

* # of cell with maximum temperature – number of cell with maximum temperature;

18

* Minimum cell voltage, V;

19

* # of cell with minimum voltage – number of cell with minimum voltage;

20

* Maximum cell voltage, V;

21

* # of cell with maximum voltage – number of cell with maximum voltage;

* State:

** Discharging ON;

** Discharging OFF;

** Relaxed (after discharging) – battery is in a state of relaxation after discharging;

26

** Charing ON;

27

** Charging OFF;

28

** Relaxed (after charging) – battery is in a state of relaxation after charging;

29

* Duration – duration of the battery in the "State" state, s;

30

* SOC – state of charge of the battery, %;

31

* SOH – state of health of the battery, %;

32

* Balancing efficiency – balancing efficiency of the battery, %;

33

* Effective capacity, А×h;

34

* Instant capacity – instantaneous value of the effective capacity (used to calculate the SOC), А×h;

35

* Coulomb counter + – charge received by the battery from the charger, А×h;

36

* Coulomb counter - – charge transferred to the battery load, А×h;

37

* Charge current limit – maximum allowed charge current of the battery, A;

38

* Discharge current limit – maximum allowed discharge current of the battery, A;

39

* Energy+ - total energy received by the battery modules from the charger and during recuperation, Wh;

40

* Energy- - total energy spent by the battery modules on the load, Wh;

41

* Balanced energy – total energy dissipated by the battery modules on balancing resistors, Wh;

42

* Internal signals – device internal signals:

43

** Charging – state of the charging contactor;

44

** Allow charging signal – signal allowing the operation of the charger;

45

** Charging current present – charging current is detected;

46

** Discharging – state of the discharging contactor;

47

** Discharging current present – discharging current is detected;

48

** Voltage is too high for charging;

49

** Heater – signal to turn on heater;

50

** Cooler – signal to turn on cooler;

51

** Shutdown request (HYG/Spirit) – request to open the discharging contactor received from the HYG forklift;

52

** Init – initialization of the device (calibration of the current sensor and communication with the cell monitor);

53

** Precharging – state of the precharge contactor;

54

** Shutdown request (Combilift) – request to open the discharging contactor received from the Combilift forklift;

55

** Cell analysis – operation of the algorithm for determining the discharge characteristics;

56

** Discharging (AUX) – state of the discharging (AUX) contactor (powering of external equipment is on);

57

** Power down ACK – signal to acknowledge powering down the battery system;

58

** Crown EWS – signal sent to the Crown truck before opening the discharging contactor;

59

** Main contactor – state of the main contactor;

60

** Service reset;

61

** Charging/Discharging – state of the charging/discharging contactor;

62

** Ready to charge – the battery is ready to charge;

63

** Ready to discharge – the battery is ready to discharge;

64

** Power up – system power status;

65

* Errors 1 – errors of the battery 1:

** Overcurrent;

** Undervoltage;

** Overvoltage;

** Low temperature (DCH) – temperature is too low for discharging;

70

** High temperature (DCH) – temperature is too high for discharging;

71

** Battery cover error – battery cover is opened;

72

** Crown error – connection with a Crown forklift is lost;

73

** Cell count – number of cells does not match the specified value;

74

** HYG offline – connection with a HYG forklift is lost;

75

** Combilift offline – connection with a Combilift forklift is lost;

76

** Short circuit;

77

** High contactor temperature;

78

** ADC error – current cannot be measured;

79

** Current sensor error – error in the current sensor circuit;

80

** CH contactor cycles error – switching frequency of the charging contactor is too high;

81

** DCH contactor cycles error – switching frequency of the discharging contactor is too high;

82

** Shunt offline – connection with the shunt current sensor is lost;

83

** Shunt error – internal error of the shunt current sensor;

84

** WDT reset – watchdog timer reset the device;

85

** No temperature sensors – the device has no temperature sensors connected;

86

** Temperature sensor is shorted – some temperature sensors are shorted;

87

** Spirit offline – connection with a Spirit forklift is lost;

88

* Errors 2 – errors of the battery 2:

89

** Low temperature (CH) – temperature is too low for charging;

90

** High temperature (CH) – temperature is too high for charging;

91

** Unallowable charging – charging the battery through the discharging contactor;

92

** Stuck contactor;

93

** Insulation fault;

94

** Contactor feedback – contactor control and feedback signals differ.

Wiki source code of 4.2 Battery