Skip to Content

Wiki source code of 4.2 Battery

Version 6.1 by Admin on 2024/12/26 16:01
Show last authors
1 (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 = Monitoring =
3
4 (% data-numbered-headings-start="2" style="--numbered-headings-start: 1;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 == Battery ==
6
7 Battery parameters are summarized in the "Battery" section:
8
9 [[image:1733403002027-572.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="507" width="800"]]
10
11 In this section:
12
13 * Voltage – voltage of the battery, V;
14 * Current – current of the battery, A;
15 * Internal resistance – internal resistance of the battery, Ohm;
16 * Main voltage – supply voltage on the BMS, V;
17 * Power switch voltage – supply voltage on the power switches, V;
18 * Board temperature – internal temperature of the BMS, °C;
19 * Board humidity – relative humidity measured by the BMS, %;
20 * Temperature 1, 2 – temperature measured by the external temperature sensors, °C;
21 * Number of Logic devices – number of connected Logic devices;
22 * Logic command rate – number of commands transmitted to Logic devices, com/s;
23 * Minimum Logic temperature – minimum temperature among Logic devices, °C;
24 * # of Logic with minimum temperature – number of Logic with minimum temperature;
25 * Maximum Logic temperature – minimum temperature among Logic devices, °C;
26 * # of Logic with maximum temperature – number of Logic with maximum temperature;
27 * Number of cells – number of connected cells;
28 * Average cell temperature, °C;
29 * Minimum cell temperature, °C;
30 * # of Logic with minimum cell temperature – number of Logic with minimum cell temperature;
31 * # of cell with minimum temperature – number of cell with minimum temperature;
32 * Maximum cell temperature, °C;
33 * # of Logic with maximum cell temperature – number of Logic with maximum cell temperature;
34 * # of cell with maximum temperature – number of cell with maximum temperature;
35 * Minimum cell voltage, V;
36 * # of Logic with minimum cell voltage – number of Logic with minimum voltage;
37 * # of cell with minimum voltage – number of cell with minimum voltage;
38 * Maximum cell voltage, V;
39 * # of Logic with maximum cell voltage – number of Logic with maximum voltage;
40 * # of cell with maximum voltage – number of cell with maximum voltage;
41 * Minimum cell SOC, %;
42 * # of Logic with minimum cell SOC – number of Logic with minimum SOC;
43 * # of cell with minimum SOC – number of cell with minimum SOC;
44 * Maximum cell SOC, %;
45 * # of Logic with maximum cell SOC – number of Logic with maximum SOC;
46 * # of cell with maximum SOC – number of cell with maximum SOC;
47 * Number of balancing cells;
48 * State:
49 ** Discharging ON;
50 ** Discharging OFF;
51 ** Relaxed (after discharging) – battery is in a state of relaxation after discharging;
52 ** Charing ON;
53 ** Charging OFF;
54 ** Relaxed (after charging) – battery is in a state of relaxation after charging;
55 * Duration – duration of the battery in the "State" state, s;
56 * SOC – state of charge of the battery, %;
57 * DOD – depth of discharge of the battery, %;
58 * SOH – state of health of the battery, %;
59 * Balancing efficiency – balancing efficiency of the battery, %;
60 * Effective capacity, А×h;
61 * Instant capacity – instantaneous value of the effective capacity (used to calculate the SOC), А×h;
62 * Coulomb counter + – charge received by the battery from the charger, А×h;
63 * Coulomb counter - – charge transferred to the battery load, А×h;
64 * Charge current limit – maximum allowed charge current of the battery, A;
65 * Discharge current limit – maximum allowed discharge current of the battery, A;
66 * High voltage 1 – voltage before the contactors, V;
67 * High voltage 2 – voltage after the contactors, V;
68 * Work charge+ - amount of charge received from charger (positive direction) since device startup, Ah;
69 * Work charge- - amount of charge transmitted to the load (negative direction) since device startup, Ah;
70 * Work energy+ - amount of energy received from charger (positive direction) since device startup, Wh;
71 * Work energy- - amount of energy transmitted to the load (negative direction) since device startup, Wh;
72 * Total energy+ - total energy received by the battery modules from the charger and during recuperation, Wh;
73 * Total energy- - total energy spent by the battery modules on the load, Wh;
74 * Total balanced energy – total energy dissipated by the battery modules on balancing resistors, Wh;
75 * Input singals:
76 ** Battery cover – a signal from the battery cover;
77 ** Charger connected – a signal indicating that charger is connected;
78 ** Power up/down request – a request to power down the device;
79 ** Inhibit charging – a command to open the charging contactor;
80 ** Inhibit discharging – a command to open the discharging contactor;
81 ** CH contactor feedback – a signal from charging contactor feedback loop;
82 ** DCH contactor feedback – a signal from discharging contactor feedback loop;
83 ** Insulation status – a signal from an insulation monitoring device;
84 ** Charge request – a request to close the charging contactor;
85 ** Precharge request – a request to close the precharging contactor;
86 ** Discharge request – a request to close the discharging contactor;
87 ** PCH contactor feedback – a signal from precharging contactor feedback loop;
88 ** CH/DCH contactor feedback – a signal from charging/discharging contactor feedback loop;
89 ** Main contactor feedback – a signal from main contactor feedback loop;
90 ** Interlock – a signal from interlock loop;
91 ** Fuse 1, Fuse 2, Fuse 3 – signals from fuses;
92 ** Circuit breaker status – status of protection disconnector;
93 ** Balancing request – a request to balance the cells;
94 ** Close Main contactor – a request to close the main contactor.
95 * Internal signals – device internal signals:
96 ** Low SOC – a signal indicating the discharged battery;
97 ** High charging current;
98 ** Charging – state of the charging contactor;
99 ** Allow charging signal – signal allowing the operation of the charger;
100 ** Charging current present – charging current is detected;
101 ** Discharging – state of the discharging contactor;
102 ** Discharging current present – discharging current is detected;
103 ** Voltage is too high for charging;
104 ** Heater – signal to turn on heater;
105 ** Cooler – signal to turn on cooler;
106 ** Shutdown request (HYG/Spirit) – request to open the discharging contactor received from the HYG forklift;
107 ** Init – initialization of the device (calibration of the current sensor and searching BMS Logic devices);
108 ** Precharging – state of the precharging contactor;
109 ** Shutdown request (Combilift) – request to open the discharging contactor received from the Combilift forklift;
110 ** Cell analysis – operation of the algorithm for determining the discharge characteristics;
111 ** Balancing 1 – balancing the first series of cells;
112 ** Balancing 2 – balancing the second series of cells;
113 ** Discharging (AUX) – state of the discharging (AUX) contactor (powering of external equipment is on);
114 ** Power down ACK – signal to acknowledge powering down the battery system;
115 ** Crown EWS – signal sent to the Crown truck before opening the discharging contactor;
116 ** Main contactor – state of the main contactor;
117 ** Service reset;
118 ** Charging/Discharging – state of the charging/discharging contactor;
119 ** Ready to charge – the battery is ready to charge;
120 ** Ready to discharge – the battery is ready to discharge;
121 ** Power up – system power status;
122 * Errors 1 – errors of the battery 1:
123 ** Overcurrent;
124 ** Undervoltage;
125 ** Overvoltage;
126 ** Low temperature (DCH) – temperature is too low for discharging;
127 ** High temperature (DCH) – temperature is too high for discharging;
128 ** Battery cover error – battery cover is open;
129 ** High humidity – humidity of the battery is increased;
130 ** Water – there is water in the battery enclosure;
131 ** High Logic temperature – at least one of the Logic devices is overheated;
132 ** Logic offline – at least one of the Logic devices is offline;
133 ** Critical error;
134 ** Crown error – connection with a Crown forklift is lost;
135 ** Cell count error – number of cells does not match the specified value;
136 ** HYG offline – connection with a HYG forklift is lost;
137 ** Combilift offline – connection with a Combilift forklift is lost;
138 ** Short circuit;
139 ** High contactor temperature;
140 ** ADC error – current cannot be measured;
141 ** Current sensor error – error in the current sensor circuit;
142 ** CH contactor cycles error – switching frequency of the charging contactor is too high;
143 ** DCH contactor cycles error – switching frequency of the discharging contactor is too high;
144 ** Shunt offline – connection with the shunt current sensor is lost;
145 ** Shunt error – internal error of the shunt current sensor;
146 ** WDT reset – watchdog timer reset the device;
147 ** No temperature sensors – the device has no temperature sensors connected;
148 ** Temperature sensor is shorted – some temperature sensors are shorted;
149 ** Spirit offline – connection with a Spirit forklift is lost;
150 * Errors 2 – errors of the battery 2:
151 ** Low temperature (CH) – temperature is too low for charging;
152 ** High temperature (CH) – temperature is too high for charging;
153 ** Unallowable charging – charging the battery through the discharging contactor;
154 ** Stuck contactor;
155 ** CH contactor feedback error – the control signals for the charging contactor and the contactor feedback differ;
156 ** DCH contactor feedback error – the control signals for the discharging contactor and the contactor feedback differ;
157 ** Insulation fault;
158 ** PCH contactor feedback error – the control signals for the precharging contactor and the contactor feedback differ;
159 ** CH/DCH contactor feedback error – the control signals for the charging/discharging contactor and the contactor feedback differ;
160 ** Main contactor feedback error – the control signals for the main contactor and the contactor feedback differ;
161 ** General error;
162 ** High voltage fault – failure of high voltage measuring circuits;
163 ** Power switch error – short circuit in contactor coil control circuit or power switch overheating;
164 ** HVIL error – breakage of high-voltage interlock current loop;
165 ** Precharge error – capacitive load pre-charge process did not end during the estimated time;
166 ** Power fault – external devices power supply error: current sensors, HVIL, BMS Logic or CAN2 (int) bus powered devices.