Files
evDash/CarBmwI3.cpp

340 lines
10 KiB
C++

#include "CarBmwI3.h"
#include <vector>
#include <algorithm>
/**
activateliveData->commandQueue
*/
void CarBmwI3::activateCommandQueue() {
const uint16_t commandQueueLoopFrom = 18;
// const std::vector<String> commandQueue = {
const std::vector<LiveData::Command_t> commandQueue = {
{0, "ATZ"}, // Reset all
{0, "ATD"}, // All to defaults
{0, "ATI"}, // Print the version ID
{0, "ATE0"}, // Echo off
{0, "ATPP2COFF"}, // Disable prog parameter 2C
//{0, "ATSH6F1"}, // Set header to 6F1
{0, "ATCF600"}, // Set the ID filter to 600
{0, "ATCM700"}, // Set the ID mask to 700
{0, "ATPBC001"}, // Protocol B options and baudrate (div 1 = 500k)
{0, "ATSPB"}, // Set protocol to B and save it (USER1 11bit, 125kbaud)
{0, "ATAT0"}, // Adaptive timing off
{0, "ATSTFF"}, // Set timeout to ff x 4ms
{0, "ATAL"}, // Allow long messages ( > 7 Bytes)
{0, "ATH1"}, // Additional headers on
{0, "ATS0"}, // Printing of spaces off
{0, "ATL0"}, // Linefeeds off
{0, "ATCSM0"}, // Silent monitoring off
{0, "ATCTM5"}, // Set timer multiplier to 5
{0, "ATJE"}, // Use J1939 SAE data format
// Loop from (BMW i3)
// BMS
{0, "ATSH6F1"},
{0x12, "22402B"}, // STATUS_MESSWERTE_IBS - 12V Bat
//////{0x12, "22F101"}, // STATUS_A_T_ELUE ???
{0x78, "22D85C"}, // Calculated indoor temperature
{0x78, "22D96B"}, // Outdoor temperature
//{0, "22DC61"}, // BREMSLICHT_SCHALTER
{0x07, "22DD7B"}, // ALTERUNG_KAPAZITAET Aging of kapacity
{0x07, "22DD7C"}, // GW_INFO - should contain kWh but in some strange form
{0x07, "22DDBF"}, // Min and Max cell voltage
{0x07, "22DDC0"}, // TEMPERATUREN
{0x07, "22DD69"}, // HV_STORM
//{0x07, "22DD6C"}, // KUEHLKREISLAUF_TEMP
{0x07, "22DDB4"}, // HV_SPANNUNG
{0x07, "22DDBC"} // SOC
};
// 60Ah / 22kWh version
liveData->params.batteryTotalAvailableKWh = 18.8;
liveData->params.batModuleTempCount = 5; //?
// init params which are currently not filled from parsed data
liveData->params.tireFrontLeftPressureBar = 0;
liveData->params.tireFrontLeftTempC = 0;
liveData->params.tireRearLeftPressureBar = 0;
liveData->params.tireRearLeftTempC = 0;
liveData->params.tireFrontRightPressureBar = 0;
liveData->params.tireFrontRightTempC = 0;
liveData->params.tireRearRightPressureBar = 0;
liveData->params.tireRearRightTempC = 0;
// Empty and fill command queue
liveData->commandQueue.clear(); // probably not needed before assign
liveData->commandQueue.assign(commandQueue.begin(), commandQueue.end());
liveData->commandQueueLoopFrom = commandQueueLoopFrom;
liveData->commandQueueCount = commandQueue.size();
liveData->bAdditionalStartingChar = true; // there is one additional byte in received packets compared to other cars
liveData->expectedMinimalPacketLength = 6; // to filter occasional 5-bytes long packets
liveData->rxTimeoutMs = 500; // timeout for receiving of CAN response
liveData->delayBetweenCommandsMs = 100; // delay between commands, set to 0 if no delay is needed
}
/**
parseRowMerged
*/
void CarBmwI3::parseRowMerged()
{
// syslog->println("--Parsing row merged: ");
// syslog->print("--responseRowMerged: "); syslog->println(liveData->responseRowMerged);
// syslog->print("--currentAtshRequest: "); syslog->println(liveData->currentAtshRequest);
// syslog->print("--commandRequest: "); syslog->println(liveData->commandRequest);
// syslog->print("--mergedLength: "); syslog->println(liveData->responseRowMerged.length());
syslog->print("--mergedVectorLength: "); syslog->println(liveData->vResponseRowMerged.size());
if (liveData->responseRowMerged.length() <= 6) {
syslog->println("--too short data, skiping processing");
}
struct Header_t
{
uint8_t startChar;
uint8_t pid[2];
uint8_t pData[];
uint16_t getPid() { return 256 * pid[0] + pid[1]; };
};
Header_t* pHeader = (Header_t*)liveData->vResponseRowMerged.data();
const uint16_t payloadLength = liveData->vResponseRowMerged.size() - sizeof(Header_t);
// create reversed payload to get little endian order of data
std::vector<uint8_t> payloadReversed(pHeader->pData, pHeader->pData + payloadLength);
std::reverse(payloadReversed.begin(), payloadReversed.end());
//syslog->print("--extracted PID: "); syslog->println(pHeader->getPid());
//syslog->print("--payload length: "); syslog->println(payloadLength);
// BMS
if (liveData->currentAtshRequest.equals("ATSH6F1")) {
switch (pHeader->getPid()) {
case 0x402B:
{
struct s402B_t {
int16_t unknown[13];
uint16_t auxRawCurrent;
uint16_t auxRawVoltage;
int16_t auxTemp;
};
if (payloadLength == sizeof(s402B_t)) {
s402B_t* ptr = (s402B_t*)payloadReversed.data();
liveData->params.auxTemperature = ptr->auxTemp / 10.0;
liveData->params.auxVoltage = ptr->auxRawVoltage / 4000.0 + 6;
liveData->params.auxCurrentAmp = - (ptr->auxRawCurrent / 12.5 - 200);
}
}
break;
case 0xD85C:
{
struct D85C_t {
int8_t indoorTemp;
};
if (payloadLength == sizeof(D85C_t)) {
D85C_t* ptr = (D85C_t*)payloadReversed.data();
liveData->params.indoorTemperature = ptr->indoorTemp;
}
}
break;
case 0xD96B:
{
struct D96B_t {
uint16_t outdoorTempRaw;
};
if (payloadLength == sizeof(D96B_t)) {
D96B_t* ptr = (D96B_t*)payloadReversed.data();
liveData->params.outdoorTemperature = (ptr->outdoorTempRaw / 2.0) - 40.0;
}
}
break;
case 0xDD69:
{
struct DD69_t {
uint8_t unknown[4];
int32_t batAmp;
};
if (payloadLength == sizeof(DD69_t)) {
DD69_t* ptr = (DD69_t*)payloadReversed.data();
liveData->params.batPowerAmp = ptr->batAmp / 100.0; //liveData->hexToDecFromResponse(6, 14, 4, true) / 100.0;
liveData->params.batPowerKw = (liveData->params.batPowerAmp * liveData->params.batVoltage) / 1000.0;
if (liveData->params.batPowerKw < 0) // Reset charging start time
liveData->params.chargingStartTime = liveData->params.currentTime;
}
}
break;
case 0xDD6C:
{
struct DD6C_t {
int16_t tempCoolant;
};
if (payloadLength == sizeof(DD6C_t)) {
DD6C_t* ptr = (DD6C_t*)payloadReversed.data();
liveData->params.coolingWaterTempC = ptr->tempCoolant / 10.0;
liveData->params.coolantTemp1C = ptr->tempCoolant / 10.0;
liveData->params.coolantTemp2C = ptr->tempCoolant / 10.0;
/*
float coolingWaterTempC;
float coolantTemp1C;
float coolantTemp2C;
*/
}
}
break;
case 0xDD7B:
{
struct DD7B_t {
uint8_t agingOfCapacity;
};
if (payloadLength == sizeof(DD7B_t)) {
DD7B_t* ptr = (DD7B_t*)payloadReversed.data();
liveData->params.sohPerc = ptr->agingOfCapacity;
}
}
break;
case 0xDD7C:
{
struct DD7C_t {
//uint8_t unused1;
uint32_t discharged;
uint32_t charged;
uint8_t unknown[];
};
Serial.print("DD7C received, struct sizeof is "); Serial.println(sizeof(DD7C_t));
if (payloadLength >= sizeof(DD7C_t)) {
DD7C_t* ptr = (DD7C_t*)(payloadReversed.data() + 1); // skip one charcter on beginning (TODO: fix when pragma push/pack is done)
liveData->params.cumulativeEnergyDischargedKWh = ptr->discharged / 100000.0;
if (liveData->params.cumulativeEnergyDischargedKWhStart == -1)
liveData->params.cumulativeEnergyDischargedKWhStart = liveData->params.cumulativeEnergyDischargedKWh;
liveData->params.cumulativeEnergyChargedKWh = ptr->charged / 100000.0;
if (liveData->params.cumulativeEnergyChargedKWhStart == -1)
liveData->params.cumulativeEnergyChargedKWhStart = liveData->params.cumulativeEnergyChargedKWh;
}
}
break;
case 0xDDB4:
{
struct DDB4_t {
uint16_t batVoltage;
};
if (payloadLength == sizeof(DDB4_t)) { // HV_SPANNUNG_BATTERIE
DDB4_t* ptr = (DDB4_t*)payloadReversed.data();
liveData->params.batVoltage = ptr->batVoltage / 100.0;
liveData->params.batPowerKw = (liveData->params.batPowerAmp * liveData->params.batVoltage) / 1000.0;
if (liveData->params.batPowerKw < 0) // Reset charging start time
liveData->params.chargingStartTime = liveData->params.currentTime;
}
}
break;
case 0xDDBF:
{
struct DDBF_t {
uint16_t unused[2];
uint16_t ucellMax;
uint16_t ucellMin;
};
if (payloadLength == sizeof(DDBF_t)) { // HV_SPANNUNG_BATTERIE
DDBF_t* ptr = (DDBF_t*)payloadReversed.data();
liveData->params.batCellMaxV = ptr->ucellMax / 1000.0;
liveData->params.batCellMinV = ptr->ucellMin / 1000.0;
}
}
break;
case 0xDDC0:
{
struct DDC0_t {
uint8_t unknown[2];
int16_t tempAvg;
int16_t tempMax;
int16_t tempMin;
};
if (payloadLength == sizeof(DDC0_t)) {
DDC0_t* ptr = (DDC0_t*)payloadReversed.data();
liveData->params.batMinC = ptr->tempMin / 100.0;
liveData->params.batTempC = ptr->tempAvg / 100.0;
liveData->params.batMaxC = ptr->tempMax / 100.0;
syslog->print("----batMinC: "); syslog->println(liveData->params.batMinC);
syslog->print("----batTemp: "); syslog->println(liveData->params.batTempC);
syslog->print("----batMaxC: "); syslog->println(liveData->params.batMaxC);
}
}
break;
case 0xDDBC:
{
struct DDBC_t {
uint8_t unknown[2];
uint16_t socMin;
uint16_t socMax;
uint16_t soc;
};
if (payloadLength == sizeof(DDBC_t)) {
DDBC_t* ptr = (DDBC_t*)payloadReversed.data();
liveData->params.socPercPrevious = liveData->params.socPerc;
liveData->params.socPerc = ptr->soc / 10.0;
}
}
break;
} // switch
} // ATSH6F1
}
/**
loadTestData
*/
void CarBmwI3::loadTestData()
{
}