mirror of
https://github.com/dalathegreat/Battery-Emulator.git
synced 2025-10-06 12:00:13 +02:00
✨ 🚧 initial version of talking to DALY BMS via RS485
This commit is contained in:
Jakob Löw
parent
566039be5d
commit
5de2af3bdf
6 changed files with 195 additions and 6 deletions
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@ -210,7 +210,7 @@ void core_loop(void* task_time_us) {
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// Input, Runs as fast as possible
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receive_can(); // Receive CAN messages
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#ifdef RS485_INVERTER_SELECTED
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#if defined(RS485_INVERTER_SELECTED) || defined(RS485_BATTERY_SELECTED)
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receive_RS485(); // Process serial2 RS485 interface
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#endif // RS485_INVERTER_SELECTED
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#if defined(SERIAL_LINK_RECEIVER) || defined(SERIAL_LINK_TRANSMITTER)
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@ -255,6 +255,10 @@ void core_loop(void* task_time_us) {
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// Output
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transmit_can(); // Send CAN messages to all components
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#ifdef RS485_BATTERY_SELECTED
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transmit_rs485();
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#endif // RS485_BATTERY_SELECTED
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END_TIME_MEASUREMENT_MAX(cantx, datalayer.system.status.time_cantx_us);
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END_TIME_MEASUREMENT_MAX(all, datalayer.system.status.core_task_10s_max_us);
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#ifdef FUNCTION_TIME_MEASUREMENT
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@ -26,6 +26,7 @@
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//#define MG_5_BATTERY
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//#define NISSAN_LEAF_BATTERY
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//#define PYLON_BATTERY
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//#define DALY_BMS
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//#define RJXZS_BMS
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//#define RANGE_ROVER_PHEV_BATTERY
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//#define RENAULT_KANGOO_BATTERY
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@ -86,6 +86,10 @@ void setup_can_shunt();
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#include "PYLON-BATTERY.h"
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#endif
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#ifdef DALY_BMS
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#include "DALY-BMS.h"
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#endif
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#ifdef RJXZS_BMS
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#include "RJXZS-BMS.h"
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#endif
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@ -131,10 +135,16 @@ void setup_can_shunt();
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#include "SERIAL-LINK-RECEIVER-FROM-BATTERY.h"
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#endif
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void handle_incoming_can_frame_battery(CAN_frame rx_frame);
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void update_values_battery();
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void transmit_can_battery();
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void setup_battery(void);
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void update_values_battery();
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#ifdef RS485_BATTERY_SELECTED
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void transmit_rs485();
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void receive_RS485();
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#else
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void handle_incoming_can_frame_battery(CAN_frame rx_frame);
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void transmit_can_battery();
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#endif
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#ifdef DOUBLE_BATTERY
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void update_values_battery2();
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148
Software/src/battery/DALY-BMS.cpp
Normal file
148
Software/src/battery/DALY-BMS.cpp
Normal file
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@ -0,0 +1,148 @@
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#include "DALY-BMS.h"
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#include <cstdint>
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#include "../include.h"
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#include "RJXZS-BMS.h"
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#ifdef DALY_BMS
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#include "../datalayer/datalayer.h"
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#include "../devboard/utils/events.h"
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#include "RENAULT-TWIZY.h"
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/* Do not change code below unless you are sure what you are doing */
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static int16_t temperature_min = 0;
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static int16_t temperature_max = 0;
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static int16_t current_dA = 0;
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static uint16_t voltage_dV = 0;
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static uint16_t remaining_capacity_Ah = 0;
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static uint16_t cellvoltages_mV[48] = {0};
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static uint16_t cellvoltage_min = 0;
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static uint16_t cellvoltage_max = 0;
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static uint16_t SOC = 0;
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void update_values_battery() {
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datalayer.battery.status.real_soc = SOC;
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datalayer.battery.status.voltage_dV = voltage_dV; //value is *10 (3700 = 370.0)
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datalayer.battery.status.current_dA = current_dA; //value is *10 (150 = 15.0)
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datalayer.battery.status.remaining_capacity_Wh = (remaining_capacity_Ah * DESIGN_PACK_VOLTAGE_DB) / 10;
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datalayer.battery.status.max_charge_power_W = MAX_CHARGE_POWER_ALLOWED_W;
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datalayer.battery.status.max_discharge_power_W = MAX_DISCHARGE_POWER_ALLOWED_W;
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memcpy(datalayer.battery.status.cell_voltages_mV, cellvoltages_mV, sizeof(cellvoltages_mV));
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datalayer.battery.status.cell_min_voltage_mV = cellvoltage_min;
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datalayer.battery.status.cell_max_voltage_mV = cellvoltage_max;
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datalayer.battery.status.temperature_min_dC = temperature_min;
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datalayer.battery.status.temperature_max_dC = temperature_max;
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}
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void setup_battery(void) { // Performs one time setup at startup
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strncpy(datalayer.system.info.battery_protocol, "DALY RS485", 63);
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datalayer.system.info.battery_protocol[63] = '\0';
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datalayer.battery.info.number_of_cells = CELL_COUNT;
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datalayer.battery.info.max_design_voltage_dV = MAX_PACK_VOLTAGE_DV;
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datalayer.battery.info.min_design_voltage_dV = MIN_PACK_VOLTAGE_DV;
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datalayer.battery.info.max_cell_voltage_mV = MAX_CELL_VOLTAGE_MV;
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datalayer.battery.info.min_cell_voltage_mV = MIN_CELL_VOLTAGE_MV;
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}
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uint8_t calculate_checksum(uint8_t buff[12]) {
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uint8_t check = 0;
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for (uint8_t i = 0; i < 12; i++) {
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check += buff[i];
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}
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return check;
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}
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uint16_t decode_uint16be(uint8_t data[8], uint8_t offset) {
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uint16_t upper = data[offset];
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uint16_t lower = data[offset + 1];
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return (upper << 8) | lower;
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}
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int16_t decode_int16be(uint8_t data[8], uint8_t offset) {
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int16_t upper = data[offset];
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int16_t lower = data[offset + 1];
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return (upper << 8) | lower;
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}
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uint32_t decode_uint32be(uint8_t data[8], uint8_t offset) {
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return (((uint32_t)data[offset]) << 24) | (((uint32_t)data[offset + 1]) << 16) | (((uint32_t)data[offset + 2]) << 8) |
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((uint32_t)data[offset + 3]);
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}
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void decode_packet(uint8_t data[8]) {
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switch (buff[2]) {
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case 0x90:
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voltage_dV = decode_uint16be(data, 0);
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current_dA = decode_int16be(data, 4) - 30000;
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SOC = decode_uint16be(data, 6) * 10;
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break;
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case 0x91:
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cellvoltage_max = decode_uint16be(data, 0);
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cellvoltage_min = decode_uint16be(data, 3);
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break;
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case 0x92:
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temperature_max = decode_int16be(data, 0) - 40;
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temperature_min = decode_int16be(data, 2) - 40;
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break;
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case 0x93:
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remaining_capacity_Ah = decode_uint32be(data, 4);
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break;
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case 0x94:
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break;
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case 0x95:
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if (data[0] > 0 && data[0] <= 16) {
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uint8_t frame_index = (data[0] - 1) * 3;
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cellvoltages_mV[frame_index + 0] = decode_uint16be(data, 1);
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cellvoltages_mV[frame_index + 1] = decode_uint16be(data, 3);
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cellvoltages_mV[frame_index + 2] = decode_uint16be(data, 5);
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}
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break;
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case 0x96:
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break;
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case 0x97:
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break;
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case 0x98:
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break;
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}
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}
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void transmit_rs485() {
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static uint32_t lastSend = 0;
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static uint8_t nextCommand = 0x90;
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if (millis() - lastSend > 10) {
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uint8_t tx_buff[13] = {0};
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tx_buff[0] = 0xA5;
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tx_buff[1] = 0x80;
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tx_buff[2] = nextCommand;
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tx_buff[3] = 8;
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tx_buff[12] = calculate_checksum(tx_buff);
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Serial2.write(tx_buff, 13);
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lastSend = millis();
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}
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}
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void receive_RS485() {
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static uint8_t recv_buff[13] = {0};
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static uint8_t recv_len = 0;
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while (Serial2.available()) {
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recv_buff[recv_len] = Serial2.read();
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recv_len++;
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if (recv_len > 0 && recv_buff[0] != 0xA5 || recv_len > 1 && recv_buff[1] != 0x01 ||
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recv_len > 2 && (recv_buff[2] < 0x90 || recv_buff[2] > 0x98) || recv_len > 3 && recv_buff[3] != 8 ||
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recv_len > 12 && recv_buff[12] != calculate_checksum(recv_buff)) {
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recv_len = 0;
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}
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if (recv_len > 12) {
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decode_packet(&recv_buff[4]);
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recv_len = 0;
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}
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}
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}
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#endif
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26
Software/src/battery/DALY-BMS.h
Normal file
26
Software/src/battery/DALY-BMS.h
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@ -0,0 +1,26 @@
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#ifndef DALY_BMS_H
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#define DALY_BMS_H
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#include <Arduino.h>
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#include "../include.h"
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/* Tweak these according to your battery build */
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#define CELL_COUNT 14
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#define DESIGN_PACK_VOLTAGE_DB 528 //528 = 52.8V
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#define MAX_PACK_VOLTAGE_DV 588 //588 = 58.8V
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#define MIN_PACK_VOLTAGE_DV 518 //518 = 51.8V
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#define MAX_CELL_VOLTAGE_MV 4250 //Battery is put into emergency stop if one cell goes over this value
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#define MIN_CELL_VOLTAGE_MV 2700 //Battery is put into emergency stop if one cell goes below this value
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#define MAX_CELL_DEVIATION_MV 250
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#define MAX_DISCHARGE_POWER_ALLOWED_W 1800
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#define MAX_CHARGE_POWER_ALLOWED_W 1800
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#define MAX_CHARGE_POWER_WHEN_TOPBALANCING_W 50
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#define RAMPDOWN_SOC 9000 // (90.00) SOC% to start ramping down from max charge power towards 0 at 100.00%
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/* Do not modify any rows below*/
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#define BATTERY_SELECTED
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#define RS485_BATTERY_SELECTED
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void setup_battery(void);
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void receive_RS485(void);
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#endif
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@ -29,9 +29,9 @@ void init_rs485() {
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pinMode(PIN_5V_EN, OUTPUT);
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digitalWrite(PIN_5V_EN, HIGH);
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#endif // PIN_5V_EN
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#ifdef RS485_INVERTER_SELECTED
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#if defined(RS485_INVERTER_SELECTED) || defined(RS485_BATTERY_SELECTED)
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Serial2.begin(57600, SERIAL_8N1, RS485_RX_PIN, RS485_TX_PIN);
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#endif // RS485_INVERTER_SELECTED
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#endif // RS485_INVERTER_SELECTED || RS485_BATTERY_SELECTED
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#ifdef MODBUS_INVERTER_SELECTED
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#ifdef BYD_MODBUS
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// Init Static data to the RTU Modbus
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