/*
* Show/Sets the mass of the vehicle
*/
static int cmd_dyno_mass(int argc, char **argv)
{
if (argc > 1)
dyno_set_mass(htoi(argv[1]));
else
printf("mass: %d kg\n", dyno_get_mass());
return (0);
}
/*
* Show/Sets the mass of the vehicle
*/
static int cmd_dyno_mass(int argc, char **argv)
{
int mass=0;
if (argc > 1)
mass=htoi(argv[1]);
if (mass > 0)
dyno_set_mass(mass);
else
printf("mass: %d kg\n", dyno_get_mass());
return 0;
}
static int cmd_dyno_run(UNUSED(int argc), UNUSED(char **argv)) {
ecu_data *ep;
int speed; /* measured speed */
int rpm; /* measured rpm */
int rpm_previous = 0; /* previous rpm */
unsigned long tv0, tv; /* measuring time */
int elapsed; /* elapsed time (ms) */
int i, length = 0; /* length of printed string */
int nb = 0; /* number of measures */
//make sure we're connected !
if (global_l3_conn == NULL) {
fprintf(stderr, FLFMT "No active L3 connection !\n", FL);
return CMD_FAILED;
}
/* Check mass */
if (dyno_get_mass() <= 0) {
printf("The mass of the vehicle has not been set, please set the mass first\n");
return CMD_OK;
}
/* Check mass */
if (dyno_loss_done <= 0) {
printf("The loss determination has not been done, please use command loss or setloss first\n");
return CMD_OK;
}
/* Show instructions */
printf("To proceed dyno, do a full-throttle acceleration run\n");
printf("in a single gear from a rolling start.\n");
printf("The run ends automatically when RPM begins to decrease.\n");
printf("\n");
wait_enter("Press ENTER when ready... ");
printf("\n");
/* Reset data */
dyno_reset(); /* dyno data */
reset_results();
tv0=diag_os_getms(); /* initial time */
ep = ecu_info; /* ECU data */
/* Measures */
while (1) {
/* measure RPM */
rpm = RUN_MEASURE_DATA(RPM_PID, ep);
if (rpm < 0) {
printf("invalid RPM !\n");
break;
}
if (rpm_previous == 0) {
/* this is the first measure */
printf("Starting dyno (min rpm=%d)\n", rpm);
printf("Number of measures : ");
}
/* if RPM starts decreasing, stop run */
if (rpm < rpm_previous) {
printf(" (max rpm=%d)\n", rpm_previous);
break;
}
/* get elapsed time */
tv=diag_os_getms();
elapsed = (int) (tv - tv0);
/* Add measure */
dyno_add_measure(elapsed, rpm);
/* Display number of measures */
nb++;
for (i = 0; i < length; i++) {
printf("");
}
length = printf("%d (%d RPM) ", nb, rpm);
fflush(stdout); /* force displaying now (may slow down dyno...) */
rpm_previous = rpm;
}
/* measure gear ratio */
rpm_previous = rpm;
speed = RUN_MEASURE_DATA(SPEED_PID, ep); /* m/s * 1000 */
rpm = RUN_MEASURE_DATA(RPM_PID, ep);
if ((speed < 0) || (rpm < 0)) {
printf("invalid RUN_MEASURE_DATA result !\n");
return CMD_FAILED;
}
dyno_set_gear(speed, (rpm_previous + rpm) / 2);
/* display dyno time */
tv=diag_os_getms();
elapsed = (int) (tv - tv0);
printf("Dyno time : %ds.\n", (elapsed/1000));
printf("\n");
return CMD_OK;
}
static int cmd_dyno_loss(UNUSED(int argc), UNUSED(char **argv)) {
ecu_data *ep;
int speed; /* measured speed */
int speed_previous = 0; /* previous speed */
unsigned long tv0, tv;
int elapsed; /* elapsed time */
int i, length; /* length of printed string */
int nb = 0; /* number of measures */
//make sure we have an L3 connection first !
if (global_l3_conn == NULL) {
fprintf(stderr, FLFMT "Error: there must be an active L3 connection!\n", FL);
return CMD_FAILED;
}
/* Check mass */
if (dyno_get_mass() <= 0) {
printf("The mass of the vehicle has not been set, please set the mass first\n");
return CMD_OK;
}
/* Show instructions */
printf("To proceed loss determination, reach the maximum speed you will reach during\n");
printf("dyno, then push in the clutch, leaving the car in gear. Allow the car to coast\n");
printf("down to the lowest possible speed. Press ENTER when finished.\n");
printf("\n");
wait_enter("Press ENTER when ready... ");
printf("\n");
/* Reset data */
dyno_loss_reset(); /* dyno data */
reset_results();
tv0=diag_os_getms(); /* initial time */
ep = ecu_info; /* ECU data */
/* exclude 1st measure */
speed_previous = LOSS_MEASURE_DATA(SPEED_PID, ep); /* m/s * 1000 */
if (speed_previous < 0) {
printf("invalid speed !\n");
return CMD_FAILED;
}
printf("Starting loss determination (max speed=%d km/h)\n", SPEED_ISO_TO_KMH(speed_previous));
printf("Number of measures : 0");
length = 1;
/* loss measures */
while (1) {
/* measure speed */
speed = LOSS_MEASURE_DATA(SPEED_PID, ep); /* m/s * 1000 */
if (speed < 0) {
printf("invalid speed !\n");
break;
}
/* get elapsed time */
tv=diag_os_getms();
elapsed = (int) (tv - tv0);
if (speed < speed_previous) {
/* Add measure */
dyno_loss_add_measure(elapsed, speed);
nb++;
speed_previous = speed;
}
if (pressed_enter() != 0) {
/* ENTER pressed : stops */
printf("Number of measures : %d (min speed=%d km/h)\n", nb, SPEED_ISO_TO_KMH(speed));
break;
}
if (speed_previous == speed) { /* measure added: update display */
/* erase previous measure */
for (i = 0; i < length; i++) {
printf("");
}
/* Display new measure */
length = printf("%d (speed=%d km/h, d=%5.5f, f=%4.2f)\t ",
nb, SPEED_ISO_TO_KMH(speed), dyno_loss_get_d(), dyno_loss_get_f());
fflush(stdout); /* force displaying now (may slow down dyno...) */
}
}
/* display dyno time */
//elapsed = MILLIS(tv) - MILLIS(tv0);
tv=diag_os_getms();
elapsed= (int) (tv - tv0);
printf("d=%5.5f, f=%4.2f\n", dyno_loss_get_d(), dyno_loss_get_f());
printf("Loss determination time : %ds.\n", (elapsed/1000));
printf("\n");
/* now dyno loss has been done */
dyno_loss_done = 1;
return CMD_OK;
}
