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

charger.h@1:0c77e20b4d4c, 2017-07-06 (annotated)

Committer:
DasSidG
Date:
Thu Jul 06 21:27:26 2017 +0000
Revision:
1:0c77e20b4d4c
Parent:
0:6d930d0d13a1
Child:
3:a7626dffb64a
Code majorly changed:; ; Structure changed significantly; All of the CAN-related functions, structures etc. added (but not yet tested); Still need to add some of the main program logic in terms of deciding when/when not to charge etc

Who changed what in which revision?

UserRevisionLine numberNew contents of line
drajan 0:6d930d0d13a1 1 #include "mbed.h"
drajan 0:6d930d0d13a1 2
DasSidG 1:0c77e20b4d4c 3 #define MAX_VOLTAGE 155000.0
DasSidG 1:0c77e20b4d4c 4 #define MAX_CURRENT 10000.0
DasSidG 1:0c77e20b4d4c 5 #define RISING_BALANCE_THRESHOLD 154000.0 //DUMMY VALUE FOR NOW, THINK ABOUT THE ACTUAL VALUE
DasSidG 1:0c77e20b4d4c 6 #define KI_CHARGE 2500.0
DasSidG 1:0c77e20b4d4c 7 #define KI_BALANCE 600.0
drajan 0:6d930d0d13a1 8 #define TIME_STEP 500
drajan 0:6d930d0d13a1 9 #define TEMP_RAMP_START -5.0
drajan 0:6d930d0d13a1 10 #define TEMP_RAMP_FINISH -1.5
drajan 0:6d930d0d13a1 11
DasSidG 1:0c77e20b4d4c 12 #define CHARGER_MSG_TIMEOUT_MS 6000
DasSidG 1:0c77e20b4d4c 13 #define BMS_MSG_TIMEOUT_MS 2000
DasSidG 1:0c77e20b4d4c 14
DasSidG 1:0c77e20b4d4c 15
DasSidG 1:0c77e20b4d4c 16 #define CAN_BUFFER_SIZE 255 //Setting this to be quite large, should be equal to max # of ids expected to receive
drajan 0:6d930d0d13a1 17
DasSidG 1:0c77e20b4d4c 18 // CAN pins
DasSidG 1:0c77e20b4d4c 19 #define CAR_CAN_WRITE_PIN p29
DasSidG 1:0c77e20b4d4c 20 #define CAR_CAN_READ_PIN p30
drajan 0:6d930d0d13a1 21
DasSidG 1:0c77e20b4d4c 22 #define CHARGER_CAN_WRITE_PIN p10
DasSidG 1:0c77e20b4d4c 23 #define CHARGER_CAN_READ_PIN p9
drajan 0:6d930d0d13a1 24
DasSidG 1:0c77e20b4d4c 25 DigitalOut green_led(p21); //charging LED
DasSidG 1:0c77e20b4d4c 26 DigitalOut yellow_led(p22); //timeout LED
DasSidG 1:0c77e20b4d4c 27 DigitalOut red_led(p23); //error LED
DasSidG 1:0c77e20b4d4c 28
drajan 0:6d930d0d13a1 29 void calculate_current(float voltage_error, float temp_margin, float *current, float *voltage);
drajan 0:6d930d0d13a1 30
DasSidG 1:0c77e20b4d4c 31 uint8_t charger_status; //status packet given by charger, see Elcon CAN Specification in google drive
DasSidG 1:0c77e20b4d4c 32 bool comms_timeout;
DasSidG 1:0c77e20b4d4c 33 bool charger_failure;
drajan 0:6d930d0d13a1 34 bool charge_finished;
DasSidG 1:0c77e20b4d4c 35 bool bms_error;
drajan 0:6d930d0d13a1 36
drajan 0:6d930d0d13a1 37
DasSidG 1:0c77e20b4d4c 38 float voltage_error=0; //mV, this is the rising balance threshold minus the max cell voltage, need to try and bring this to 0
DasSidG 1:0c77e20b4d4c 39 float temp_margin = 0; //degrees C, this is the max cell temperature minus max cell temperature limit, need to avoid this hitting 0
DasSidG 1:0c77e20b4d4c 40 float discharge_error; //mV, not currently used
DasSidG 1:0c77e20b4d4c 41 float pack_capacity; //Ah, not currently used
drajan 0:6d930d0d13a1 42
DasSidG 1:0c77e20b4d4c 43 float min_cell_voltage; //mV
DasSidG 1:0c77e20b4d4c 44 float max_cell_voltage;//mV
drajan 0:6d930d0d13a1 45
DasSidG 1:0c77e20b4d4c 46 float charger_current; //mA
DasSidG 1:0c77e20b4d4c 47 float charger_voltage; //mV
drajan 0:6d930d0d13a1 48
DasSidG 1:0c77e20b4d4c 49 float desired_current = 0; //mA
DasSidG 1:0c77e20b4d4c 50 float desired_voltage = MAX_VOLTAGE; //mV
drajan 0:6d930d0d13a1 51
DasSidG 1:0c77e20b4d4c 52 uint8_t charger_control = 1; //0 or 1, 0 means start charging, 1 means stop charging
drajan 0:6d930d0d13a1 53