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@5:756fae795d37, 2017-07-30 (annotated)

Committer:
DasSidG
Date:
Sun Jul 30 22:59:37 2017 +0000
Revision:
5:756fae795d37
Parent:
3:a7626dffb64a
Child:
7:70cf5bff23f9
Made it calculate the voltage error itself.; Made it reset the relevant part of the CAN buffer each time it reads it so that it uses fresh data each time; ; Ready for testing.

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_max_min_voltage(CANMessage msg, float &_min_cell_voltage, float &_max_cell_voltage) {
DasSidG 1:0c77e20b4d4c 10 CAN_Data data;
DasSidG 1:0c77e20b4d4c 11 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 12
DasSidG 3:a7626dffb64a 13 _min_cell_voltage = (float) data.get_u16(0);
DasSidG 3:a7626dffb64a 14 _max_cell_voltage = (float) data.get_u16(1);
DasSidG 1:0c77e20b4d4c 15 }
DasSidG 1:0c77e20b4d4c 16
DasSidG 1:0c77e20b4d4c 17 void get_battery_status(CANMessage msg, bool &error) { //note using extended battery pack status
DasSidG 1:0c77e20b4d4c 18 CAN_Data data;
DasSidG 1:0c77e20b4d4c 19 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 20
DasSidG 1:0c77e20b4d4c 21 error = data.getLower_uLong() > 0;
DasSidG 1:0c77e20b4d4c 22 //ignore the rest of the status as we don't care
DasSidG 1:0c77e20b4d4c 23 }
DasSidG 1:0c77e20b4d4c 24
DasSidG 1:0c77e20b4d4c 25 void get_charger_VI_info(CANMessage msg, float &_charger_voltage, float &_charger_current, uint8_t &_charger_status) {
DasSidG 1:0c77e20b4d4c 26 CAN_Data data;
DasSidG 1:0c77e20b4d4c 27 data.importCANData(msg);
DasSidG 1:0c77e20b4d4c 28
DasSidG 1:0c77e20b4d4c 29 _charger_voltage = data.get_u16(0)*100.0;
DasSidG 1:0c77e20b4d4c 30 _charger_current = data.get_u16(1)*100.0;
DasSidG 1:0c77e20b4d4c 31 _charger_status = data.get_u8(4);
DasSidG 1:0c77e20b4d4c 32 }
DasSidG 1:0c77e20b4d4c 33
DasSidG 5:756fae795d37 34 void check_precharge_status (CANMessage msg, bool &_precharge_ready) {
DasSidG 5:756fae795d37 35 CAN_Data data;
DasSidG 5:756fae795d37 36 data.importCANData(msg);
DasSidG 5:756fae795d37 37
DasSidG 5:756fae795d37 38 if(data.get_u8(1) == 4) _precharge_ready = true;
DasSidG 5:756fae795d37 39 else _precharge_ready = false;
DasSidG 5:756fae795d37 40 }
DasSidG 5:756fae795d37 41
DasSidG 1:0c77e20b4d4c 42 CANMessage generate_charger_control_msg(float _desired_voltage, float _desired_current, uint8_t _charger_control) {
DasSidG 1:0c77e20b4d4c 43 CANMessage msg;
DasSidG 1:0c77e20b4d4c 44 msg.format = CANExtended; //the charger uses the extended CAN frame format
DasSidG 1:0c77e20b4d4c 45 msg.len = 8;
DasSidG 1:0c77e20b4d4c 46 msg.id = CHARGER_VI_CONTROL_ID;
DasSidG 1:0c77e20b4d4c 47 CAN_Data data;
DasSidG 1:0c77e20b4d4c 48 data.set_u16(0, (uint16_t) (_desired_voltage/100));
DasSidG 1:0c77e20b4d4c 49 data.set_u16(1, (uint16_t) (_desired_current/100));
DasSidG 1:0c77e20b4d4c 50 data.set_u8(4, _charger_control);
DasSidG 1:0c77e20b4d4c 51 data.set_u8(5,0);
DasSidG 1:0c77e20b4d4c 52 data.set_u8(6,0);
DasSidG 1:0c77e20b4d4c 53 data.set_u8(7,0);
DasSidG 1:0c77e20b4d4c 54
DasSidG 1:0c77e20b4d4c 55 for(int i=0; i<8; i++) {
DasSidG 1:0c77e20b4d4c 56 msg.data[i] = data.get_u8(i);
DasSidG 1:0c77e20b4d4c 57 }
DasSidG 1:0c77e20b4d4c 58
DasSidG 1:0c77e20b4d4c 59 return msg;
DasSidG 1:0c77e20b4d4c 60 }
DasSidG 1:0c77e20b4d4c 61
DasSidG 1:0c77e20b4d4c 62 CANMessage generate_charger_info_msg(float _charger_voltage, float _charger_current, uint8_t _charger_status) {
DasSidG 1:0c77e20b4d4c 63 CANMessage msg;
DasSidG 1:0c77e20b4d4c 64 msg.len = 8;
DasSidG 1:0c77e20b4d4c 65 msg.id = CHARGER_ID;
DasSidG 1:0c77e20b4d4c 66 CAN_Data data;
DasSidG 1:0c77e20b4d4c 67 data.set_u16(0, (uint16_t) (_charger_voltage/100));
DasSidG 1:0c77e20b4d4c 68 data.set_u16(1, (uint16_t) (_charger_current/100));
DasSidG 1:0c77e20b4d4c 69 data.set_u8(4, _charger_status);
DasSidG 1:0c77e20b4d4c 70 data.set_u8(5,0);
DasSidG 1:0c77e20b4d4c 71 data.set_u8(6,0);
DasSidG 1:0c77e20b4d4c 72 data.set_u8(7,0);
DasSidG 1:0c77e20b4d4c 73
DasSidG 1:0c77e20b4d4c 74 for(int i=0; i<8; i++) {
DasSidG 1:0c77e20b4d4c 75 msg.data[i] = data.get_u8(i);
DasSidG 1:0c77e20b4d4c 76 }
DasSidG 1:0c77e20b4d4c 77
DasSidG 1:0c77e20b4d4c 78 return msg;
DasSidG 3:a7626dffb64a 79 }
DasSidG 3:a7626dffb64a 80
DasSidG 3:a7626dffb64a 81 CANMessage generate_charging_finished_msg() {
DasSidG 3:a7626dffb64a 82 CANMessage msg;
DasSidG 3:a7626dffb64a 83 msg.len = 8;
DasSidG 3:a7626dffb64a 84 msg.id = BMS_BASE_ID + EEPROM_RESET_ID;
DasSidG 3:a7626dffb64a 85
DasSidG 3:a7626dffb64a 86 CAN_Data data;
DasSidG 5:756fae795d37 87 data.setLowerFloat(PACK_CAPACITY); //42 is the pack capacity in Ah
DasSidG 3:a7626dffb64a 88 data.setUpperFloat(100); //100% as fully charged
DasSidG 3:a7626dffb64a 89
DasSidG 3:a7626dffb64a 90 for(int i=0; i<8; i++) {
DasSidG 3:a7626dffb64a 91 msg.data[i] = data.get_u8(i);
DasSidG 3:a7626dffb64a 92 }
DasSidG 3:a7626dffb64a 93 return msg;
DasSidG 1:0c77e20b4d4c 94 }