79 lines
3.0 KiB
Python
79 lines
3.0 KiB
Python
import pytest
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from bmspy.classes import BMSScalarField, BMSMultiField, BMSInfoField
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from bmspy.jbd_bms import JBDBMS
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# ---------------------------------------------------------------------------
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# Raw JBD BMS wire-format fixtures
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# ---------------------------------------------------------------------------
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# 03 response: 31 bytes, data_len=25, 4 cells, 1 NTC sensor
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# Encodes: 52.00V, 0.00A, 100.00Ah remaining, 100.00Ah nominal,
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# 10 cycles, 2023-01-15, no protection faults, rsoc=95,
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# charging+discharging MOSFET on, 4 cells, 25.0°C
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VALID_03_RESPONSE = bytearray([
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0xDD, 0xA5, 0x00, 0x19, # start, r/w, status OK, data_len=25
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0x14, 0x50, # total voltage: 5200 * 0.01 = 52.00 V
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0x00, 0x00, # current: 0
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0x27, 0x10, # remaining cap: 10000 * 0.01 = 100.00 Ah
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0x27, 0x10, # nominal cap: 10000 * 0.01 = 100.00 Ah
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0x00, 0x0A, # charge cycles: 10
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0x2E, 0x2F, # manufacture date: 0x2E2F → 2023-01-15
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0x00, 0x00, # balance state high (no balancing)
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0x00, 0x00, # balance state low (no balancing)
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0x00, 0x00, # protection state (no faults)
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0x00, # software version
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0x5F, # rsoc: 95 * 0.01 = 0.95
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0x03, # control status: charging(bit0) + discharging(bit1)
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0x04, # cell count: 4
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0x01, # NTC sensor count: 1
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0x0B, 0xA5, # NTC 1: (0x0BA5=2981 - 2731) * 0.1 = 25.0 °C
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0xFD, 0x97, # checksum
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])
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# 04 response: 14 bytes, 4 cells
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# Cell voltages: 3.600 V, 3.601 V, 3.599 V, 3.598 V
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VALID_04_RESPONSE = bytearray([
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0xDD, 0xA5, 0x00, 0x08, # start, r/w, status OK, data_len=8
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0x0E, 0x10, # cell 1: 3600 * 0.001 = 3.600 V
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0x0E, 0x11, # cell 2: 3601 * 0.001 = 3.601 V
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0x0E, 0x0F, # cell 3: 3599 * 0.001 = 3.599 V
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0x0E, 0x0E, # cell 4: 3598 * 0.001 = 3.598 V
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0xFF, 0x82, # checksum
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])
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@pytest.fixture
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def valid_03_response() -> bytearray:
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return bytearray(VALID_03_RESPONSE)
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@pytest.fixture
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def valid_04_response() -> bytearray:
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return bytearray(VALID_04_RESPONSE)
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@pytest.fixture
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def populated_jbdbms() -> JBDBMS:
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bms = JBDBMS()
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bms.bms_voltage_total_volts = BMSScalarField(
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help="Total Voltage", raw_value=52.0, value="52.00", units="V"
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)
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bms.bms_current_amps = BMSScalarField(
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help="Current", raw_value=0.0, value="0.00", units="A"
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)
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bms.bms_capacity_charge_ratio = BMSScalarField(
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help="Percent Charge", raw_value=0.95, value="0.95", units="‰"
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)
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bms.bms_manufacture_date = BMSInfoField(
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help="Date of Manufacture", info="2023-01-15"
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)
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bms.bms_temperature_celcius = BMSMultiField(
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help="Temperature",
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label="sensor",
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raw_values={1: 25.0},
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values={1: "25.00"},
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units="°C",
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)
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return bms
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