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Send limits in Amps instead of Watts

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Daniel 2023-07-24 21:54:02 +03:00
parent 30559165a6
commit c936b79a03
1 changed files with 25 additions and 15 deletions
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40
Software/BYD-CAN.cpp
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@ -19,28 +19,38 @@ const CAN_frame_t BYD_3D0_1 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.Ms
const CAN_frame_t BYD_3D0_2 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x3D0,.data = {0x02, 0x65, 0x6D, 0x69, 0x75, 0x6D, 0x20, 0x48}}; //emium H
const CAN_frame_t BYD_3D0_3 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x3D0,.data = {0x03, 0x56, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00}}; //VS
//Actual content messages
CAN_frame_t BYD_110 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x110,.data = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
CAN_frame_t BYD_150 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x150,.data = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
CAN_frame_t BYD_110 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x110,.data = {0x01, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
CAN_frame_t BYD_150 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x150,.data = {0x00, 0x00, 0x00, 0x00, 0x10, 0x27, 0x00, 0x00}};
CAN_frame_t BYD_190 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x190,.data = {0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00}};
CAN_frame_t BYD_1D0 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x1D0,.data = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x08}};
CAN_frame_t BYD_210 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x210,.data = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
static int discharge_current = 0;
static int charge_current = 0;
void update_values_can_byd()
{ //This function maps all the values fetched from battery CAN to the correct CAN messages
//Calculate values
charge_current = ((max_target_charge_power*10)/max_volt_byd_can); //Charge power in W , max volt in V+1decimal (P=UI, solve for I)
//The above calculation results in (30 000*10)/3700=81A
charge_current = (charge_current*10); //Value needs a decimal before getting sent to inverter (81.0A)
discharge_current = ((max_target_discharge_power*10)/max_volt_byd_can); //Charge power in W , max volt in V+1decimal (P=UI, solve for I)
//The above calculation results in (30 000*10)/3700=81A
discharge_current = (discharge_current*10); //Value needs a decimal before getting sent to inverter (81.0A)
//Map values to CAN messages
//Maxvoltage (eg 400.0V = 4000 , 16bits long)
BYD_110.data.u8[0] = (max_volt_byd_can >> 8);
BYD_110.data.u8[1] = (max_volt_byd_can & 0x00FF);
//Minvoltage (eg 300.0V = 3000 , 16bits long)
BYD_110.data.u8[2] = (min_volt_byd_can >> 8);
BYD_110.data.u8[3] = (min_volt_byd_can & 0x00FF);
//Maximum charge power allowed (TODO, CHECK IF POWER OR CURRENT SHOULD BE USED)
BYD_110.data.u8[4] = (max_target_charge_power >> 8);
BYD_110.data.u8[5] = (max_target_charge_power & 0x00FF);
//Maximum discharge power allowed (TODO, CHECK IF POWER OR CURRENT SHOULD BE USED)
BYD_110.data.u8[6] = (max_target_discharge_power >> 8);
BYD_110.data.u8[7] = (max_target_discharge_power & 0x00FF);
//Maximum charge power allowed (Unit: A+1)
BYD_110.data.u8[4] = (charge_current >> 8);
BYD_110.data.u8[5] = (charge_current & 0x00FF);
//Maximum discharge power allowed (Unit: A+1)
BYD_110.data.u8[6] = (discharge_current >> 8);
BYD_110.data.u8[7] = (discharge_current & 0x00FF);
//SOC (100.00%)
BYD_150.data.u8[0] = (SOC >> 8);
@ -48,12 +58,12 @@ void update_values_can_byd()
//StateOfHealth (100.00%)
BYD_150.data.u8[2] = (StateOfHealth >> 8);
BYD_150.data.u8[3] = (StateOfHealth & 0x00FF);
//Maximum charge power allowed (TODO, CHECK IF POWER OR CURRENT SHOULD BE USED)
BYD_150.data.u8[4] = (max_target_charge_power >> 8);
BYD_150.data.u8[5] = (max_target_charge_power & 0x00FF);
//Maximum discharge power allowed (TODO, CHECK IF POWER OR CURRENT SHOULD BE USED)
BYD_150.data.u8[6] = (max_target_discharge_power >> 8);
BYD_150.data.u8[7] = (max_target_discharge_power & 0x00FF);
//Maximum charge power allowed (Unit: A+1)
BYD_150.data.u8[4] = (charge_current >> 8);
BYD_150.data.u8[5] = (charge_current & 0x00FF);
//Maximum discharge power allowed (Unit: A+1)
BYD_150.data.u8[6] = (discharge_current >> 8);
BYD_150.data.u8[7] = (discharge_current & 0x00FF);
//Voltage (370.0)
BYD_1D0.data.u8[0] = (battery_voltage >> 8);