CUER / Mbed 2 deprecated charger_code

Code to run on the charger board (used to charge the car from the mains).

Dependencies:   mbed CUER_CAN

CANParserCharger.cpp@3:a7626dffb64a, 2017-07-27 (annotated)

Committer:
DasSidG
Date:
Thu Jul 27 21:00:52 2017 +0000
Revision:
3:a7626dffb64a
Parent:
1:0c77e20b4d4c
Child:
5:756fae795d37
Code is now theoretically finished; completely untested however.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DasSidG 1:0c77e20b4d4c 1 // Here are the functions to generate the CAN messages
DasSidG 1:0c77e20b4d4c 2 #include "CANParserCharger.h"
DasSidG 1:0c77e20b4d4c 3 #include "mbed.h"
DasSidG 1:0c77e20b4d4c 4 #include "CAN_IDs.h"
DasSidG 1:0c77e20b4d4c 5
DasSidG 1:0c77e20b4d4c 6
DasSidG 1:0c77e20b4d4c 7 using namespace CAN_IDs;
DasSidG 1:0c77e20b4d4c 8
DasSidG 1:0c77e20b4d4c 9 void get_charger_control_info(CANMessage msg, float &_voltage_error, float &_temp_margin, float &_discharge_error, float &_pack_capacity) {
DasSidG 1:0c77e20b4d4c 10 CAN_Data data;
DasSidG 1:0c77e20b4d4c 11 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 12
DasSidG 3:a7626dffb64a 13 _voltage_error = (float) data.get_u16(0);
DasSidG 1:0c77e20b4d4c 14 _temp_margin = data.get_u16(1) /10.0;
DasSidG 3:a7626dffb64a 15 _discharge_error = (float) data.get_u16(2);
DasSidG 3:a7626dffb64a 16 _pack_capacity = (float) data.get_u16(3);
DasSidG 1:0c77e20b4d4c 17 }
DasSidG 1:0c77e20b4d4c 18
DasSidG 1:0c77e20b4d4c 19 void get_max_min_voltage(CANMessage msg, float &_min_cell_voltage, float &_max_cell_voltage) {
DasSidG 1:0c77e20b4d4c 20 CAN_Data data;
DasSidG 1:0c77e20b4d4c 21 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 22
DasSidG 3:a7626dffb64a 23 _min_cell_voltage = (float) data.get_u16(0);
DasSidG 3:a7626dffb64a 24 _max_cell_voltage = (float) data.get_u16(1);
DasSidG 1:0c77e20b4d4c 25 }
DasSidG 1:0c77e20b4d4c 26
DasSidG 1:0c77e20b4d4c 27 void get_battery_status(CANMessage msg, bool &error) { //note using extended battery pack status
DasSidG 1:0c77e20b4d4c 28 CAN_Data data;
DasSidG 1:0c77e20b4d4c 29 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 30
DasSidG 1:0c77e20b4d4c 31 error = data.getLower_uLong() > 0;
DasSidG 1:0c77e20b4d4c 32 //ignore the rest of the status as we don't care
DasSidG 1:0c77e20b4d4c 33 }
DasSidG 1:0c77e20b4d4c 34
DasSidG 1:0c77e20b4d4c 35 void get_charger_VI_info(CANMessage msg, float &_charger_voltage, float &_charger_current, uint8_t &_charger_status) {
DasSidG 1:0c77e20b4d4c 36 CAN_Data data;
DasSidG 1:0c77e20b4d4c 37 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 38
DasSidG 1:0c77e20b4d4c 39 _charger_voltage = data.get_u16(0)*100.0;
DasSidG 1:0c77e20b4d4c 40 _charger_current = data.get_u16(1)*100.0;
DasSidG 1:0c77e20b4d4c 41 _charger_status = data.get_u8(4);
DasSidG 1:0c77e20b4d4c 42 }
DasSidG 1:0c77e20b4d4c 43
DasSidG 1:0c77e20b4d4c 44 CANMessage generate_charger_control_msg(float _desired_voltage, float _desired_current, uint8_t _charger_control) {
DasSidG 1:0c77e20b4d4c 45 CANMessage msg;
DasSidG 1:0c77e20b4d4c 46 msg.format = CANExtended; //the charger uses the extended CAN frame format
DasSidG 1:0c77e20b4d4c 47 msg.len = 8;
DasSidG 1:0c77e20b4d4c 48 msg.id = CHARGER_VI_CONTROL_ID;
DasSidG 1:0c77e20b4d4c 49 CAN_Data data;
DasSidG 1:0c77e20b4d4c 50 data.set_u16(0, (uint16_t) (_desired_voltage/100));
DasSidG 1:0c77e20b4d4c 51 data.set_u16(1, (uint16_t) (_desired_current/100));
DasSidG 1:0c77e20b4d4c 52 data.set_u8(4, _charger_control);
DasSidG 1:0c77e20b4d4c 53 data.set_u8(5,0);
DasSidG 1:0c77e20b4d4c 54 data.set_u8(6,0);
DasSidG 1:0c77e20b4d4c 55 data.set_u8(7,0);
DasSidG 1:0c77e20b4d4c 56
DasSidG 1:0c77e20b4d4c 57 for(int i=0; i<8; i++) {
DasSidG 1:0c77e20b4d4c 58 msg.data[i] = data.get_u8(i);
DasSidG 1:0c77e20b4d4c 59 }
DasSidG 1:0c77e20b4d4c 60
DasSidG 1:0c77e20b4d4c 61 return msg;
DasSidG 1:0c77e20b4d4c 62 }
DasSidG 1:0c77e20b4d4c 63
DasSidG 1:0c77e20b4d4c 64 CANMessage generate_charger_info_msg(float _charger_voltage, float _charger_current, uint8_t _charger_status) {
DasSidG 1:0c77e20b4d4c 65 CANMessage msg;
DasSidG 1:0c77e20b4d4c 66 msg.len = 8;
DasSidG 1:0c77e20b4d4c 67 msg.id = CHARGER_ID;
DasSidG 1:0c77e20b4d4c 68 CAN_Data data;
DasSidG 1:0c77e20b4d4c 69 data.set_u16(0, (uint16_t) (_charger_voltage/100));
DasSidG 1:0c77e20b4d4c 70 data.set_u16(1, (uint16_t) (_charger_current/100));
DasSidG 1:0c77e20b4d4c 71 data.set_u8(4, _charger_status);
DasSidG 1:0c77e20b4d4c 72 data.set_u8(5,0);
DasSidG 1:0c77e20b4d4c 73 data.set_u8(6,0);
DasSidG 1:0c77e20b4d4c 74 data.set_u8(7,0);
DasSidG 1:0c77e20b4d4c 75
DasSidG 1:0c77e20b4d4c 76 for(int i=0; i<8; i++) {
DasSidG 1:0c77e20b4d4c 77 msg.data[i] = data.get_u8(i);
DasSidG 1:0c77e20b4d4c 78 }
DasSidG 1:0c77e20b4d4c 79
DasSidG 1:0c77e20b4d4c 80 return msg;
DasSidG 3:a7626dffb64a 81 }
DasSidG 3:a7626dffb64a 82
DasSidG 3:a7626dffb64a 83 CANMessage generate_charging_finished_msg() {
DasSidG 3:a7626dffb64a 84 CANMessage msg;
DasSidG 3:a7626dffb64a 85 msg.len = 8;
DasSidG 3:a7626dffb64a 86 msg.id = BMS_BASE_ID + EEPROM_RESET_ID;
DasSidG 3:a7626dffb64a 87
DasSidG 3:a7626dffb64a 88 CAN_Data data;
DasSidG 3:a7626dffb64a 89 data.setLowerFloat(42); //42 is the pack capacity in Ah
DasSidG 3:a7626dffb64a 90 data.setUpperFloat(100); //100% as fully charged
DasSidG 3:a7626dffb64a 91
DasSidG 3:a7626dffb64a 92 for(int i=0; i<8; i++) {
DasSidG 3:a7626dffb64a 93 msg.data[i] = data.get_u8(i);
DasSidG 3:a7626dffb64a 94 }
DasSidG 3:a7626dffb64a 95 return msg;
DasSidG 1:0c77e20b4d4c 96 }