#include #include "bsp/adc.h" #include "foc/motor/current.h" #include "libs/utils.h" #include "libs/logger.h" #define NB_OFFSET_SAMPLES 32 #define Rvbus 0.0005f #define Gvbus (13.1f) //母线电流的运放 #define Rds_Defualt 0.005f//欧 #define Gmos (1.7f)//mos 电流的运放 #define Sample_R Rds_Defualt #define Lower_Pass_p 0.2f #define VBUS_VOL(adc) (((float)(adc)) * 3.3f / 4096.0f / Gvbus) #define MOSds_VOL(adc) (((float)(adc)) * 3.3f / 4096.0f / Gmos) #define current_i(v, r) ((v)/(r)) void phase_current_init(current_samp_t *cs) { cs->offset_sample_count = NB_OFFSET_SAMPLES + 1; cs->Ia = 0.0f; cs->Ib = 0.0f; cs->Ic = 0.0f; } #if SHUNT_NUM==THREE_SHUNTS_SAMPLE void phase_current_offset(current_samp_t *cs) { s32 phase_current1, phase_current2; adc_phase_current_read(cs->sector, &phase_current1, &phase_current2); if (cs->offset_sample_count == (NB_OFFSET_SAMPLES + 1)) { cs->offset_sample_count --; return; } if (cs->offset_sample_count > 0) { cs->offset_sample_count--; if (cs->sector == SECTOR_5 && cs->offset_sample_count >= 0) { cs->adc_offset_b += phase_current1; cs->adc_offset_a += phase_current2; if (cs->offset_sample_count == 0) { cs->adc_offset_b = cs->adc_offset_b / NB_OFFSET_SAMPLES; cs->adc_offset_a = cs->adc_offset_a / NB_OFFSET_SAMPLES; } } if (cs->sector == SECTOR_1 && cs->offset_sample_count >= 0) { cs->adc_offset_c += phase_current2; if (cs->offset_sample_count == 0) { cs->adc_offset_c = cs->adc_offset_c / NB_OFFSET_SAMPLES; } } } } #define LowPass_filter 1.0f void phase_current_sample(current_samp_t *cs){ s32 phase_current1, phase_current2; float Ia, Ib, Ic; phase_time_t *time = &cs->time; adc_phase_current_read(cs->sector, &phase_current1, &phase_current2); if (time->three_shunts_flags == 1) { time->three_shunts_flags = 0; return; //use old current; } if (cs->sector == SECTOR_4 || cs->sector == SECTOR_5) { /* Current on Phase C is not accessible */ /* Ia = PhaseAOffset - ADC converted value) */ Ib = current_i(MOSds_VOL(phase_current1 - cs->adc_offset_b), Rds_Defualt); LowPass_Filter(cs->Ib, Ib, LowPass_filter); Ia = current_i(MOSds_VOL(phase_current2 - cs->adc_offset_a), Rds_Defualt); LowPass_Filter(cs->Ia, Ia, LowPass_filter); cs->Ic = -(cs->Ia + cs->Ib); }else if (cs->sector == SECTOR_1 || cs->sector == SECTOR_6) { /* Current on Phase A is not accessible */ /* Ib = PhaseBOffset - ADC converted value) */ Ib = current_i(MOSds_VOL(phase_current1 - cs->adc_offset_b), Rds_Defualt); LowPass_Filter(cs->Ib, Ib, LowPass_filter); Ic = current_i(MOSds_VOL(phase_current2 - cs->adc_offset_c), Rds_Defualt); LowPass_Filter(cs->Ic, Ic, LowPass_filter); cs->Ia = -(cs->Ib + cs->Ic); }else if (cs->sector == SECTOR_2 || cs->sector == SECTOR_3) { /* Current on Phase B is not accessible */ /* Ia = PhaseAOffset - ADC converted value) */ Ia = current_i(MOSds_VOL(phase_current1 - cs->adc_offset_a), Rds_Defualt); LowPass_Filter(cs->Ia, Ia, LowPass_filter); Ic = current_i(MOSds_VOL(phase_current2 - cs->adc_offset_c), Rds_Defualt); LowPass_Filter(cs->Ic, Ic, LowPass_filter); cs->Ib = -(cs->Ia + cs->Ic); } { static int count = 0; if (count++ % 2 == 0) { //log_chan_value(1, (int)(cs->Ia * 1000)); } } } void get_phase_sample_point(current_samp_t *cs, u8 sector){ phase_time_t *time = &cs->time; u32 low_side_low_duty = FOC_PWM_Half_Period - time->low; u32 low_side_mid_duty = FOC_PWM_Half_Period - time->midle; cs->sector = sector; time->Samp_p1 = FOC_PWM_Half_Period + 1; time->Samp_p2 = FOC_PWM_Half_Period + 1; /*底边开mos的时间是2倍的 low_side_low_duty(一个周期)*/ if (low_side_low_duty * 2 >= TSampleMIN) { //可以采样 if (low_side_low_duty >= (TADC + TDead)) {//可以在pwm的中心点采样 time->Samp_p1 = FOC_PWM_Half_Period - 1; cs->sector = SECTOR_1; }else { u32 Samp_p = time->low + TSampleBefore; if (Samp_p >= FOC_PWM_Half_Period) { //需要在pwm中心点过后采样,需要配置PWM0模式 time->Samp_p2 = ( 2u * FOC_PWM_Half_Period ) - Samp_p - (uint16_t) 1; //log_chan_value(2, time->Samp_p2); }else { time->Samp_p1 = Samp_p; //log_chan_value(4, time->Samp_p1); } } }else if (low_side_mid_duty * 2 >= TSampleMIN){ if (low_side_mid_duty >= (TADC + TDead)) {//可以在pwm的中心点采样 time->Samp_p1 = FOC_PWM_Half_Period - 1; }else { u32 Samp_p = time->midle + TSampleBefore; if (Samp_p >= FOC_PWM_Half_Period) { //需要在pwm中心点过后采样,需要配置PWM0模式 time->Samp_p2 = ( 2u * FOC_PWM_Half_Period ) - Samp_p - (uint16_t) 1; //log_chan_value(3, time->Samp_p2); }else { time->Samp_p1 = Samp_p; //log_chan_value(5, time->Samp_p1); } } }else { time->three_shunts_flags = 1; //means do'nt use the sample current time->Samp_p1 = FOC_PWM_Half_Period - 1;//dumy trigger } } #else #define TBEFOR (TDead + MAX(TRise, TNoise)) #define TMIN (TDead + MAX(TRise, TNoise) + TADC) static __inline u8 _get_sample_boundary(current_samp_t *cs, phase_time_t *time) { #if 0 s32 delta_duty0 = (s32)time->midle - (s32)time->high; s32 delta_duty1 = (s32)time->low - (s32)time->midle; if (delta_duty0 <= TMIN && delta_duty1 <= TMIN) { return BOUNDARY_3; }else if (delta_duty0 <= TMIN && delta_duty1 > TMIN) { return BOUNDARY_2; }else if (delta_duty0 > TMIN && delta_duty1 <= TMIN) { return BOUNDARY_1; }else { return REGULAR; } #else return REGULAR; #endif } static __inline void _get_boundary1_samp(current_samp_t *cs, phase_time_t *time) { s32 delta_duty1 = (s32)time->low - (s32)time->midle; s32 delta_time_inc = (TMIN - delta_duty1); s32 delta_time_dec = min(delta_time_inc, delta_duty1); s32 sample_p; switch(cs->sector) { case SECTOR_1: //AB big and delta small time->Samp_p1 = time->B - TADC; sample_p = time->A; time->A = sample_p + delta_time_inc; time->A_next = sample_p - delta_time_dec; time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_NIC; time->sampe_phase_2 = SAMP_IA; break; case SECTOR_2://BA big and delta small time->Samp_p1 = time->A - TADC; sample_p = time->B; time->B = sample_p + delta_time_inc; time->B_next = sample_p - delta_time_dec; time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_NIC; time->sampe_phase_2 = SAMP_IB; break; case SECTOR_3://BC big and delta small time->Samp_p1 = time->C - TADC; sample_p = time->B; time->B = sample_p + delta_time_inc; time->B_next = sample_p - delta_time_dec; time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_NIA; time->sampe_phase_2 = SAMP_IB; break; case SECTOR_4://CB big and delta small time->Samp_p1 = time->B - TADC; sample_p = time->C; time->C = sample_p + delta_time_inc; time->C_next = sample_p - delta_time_dec; time->Samp_p2 = time->C - TADC; time->sampe_phase_1 = SAMP_NIA; time->sampe_phase_2 = SAMP_IC; break; case SECTOR_5://CA big and delta small time->Samp_p1 = time->A - TADC; sample_p = time->C; time->C = sample_p + delta_time_inc; time->C_next = sample_p - delta_time_dec; time->Samp_p2 = time->C - TADC; time->sampe_phase_1 = SAMP_NIB; time->sampe_phase_2 = SAMP_IC; break; case SECTOR_6://AC big and delta small time->Samp_p1 = time->C - TADC; sample_p = time->A; time->A = sample_p + delta_time_inc; time->A_next = sample_p - delta_time_dec; time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_NIB; time->sampe_phase_2 = SAMP_IA; break; default: break; } } static __inline void _get_boundary2_samp(current_samp_t *cs, phase_time_t *time) { s32 delta_duty0 = (s32)time->midle - (s32)time->high; s32 delta_time_dec = (TMIN - delta_duty0); s32 delta_time_inc = min(delta_time_dec, delta_duty0); s32 sample_p; switch(cs->sector) { case SECTOR_1: //BC samll and delta small time->Samp_p2 = time->A - TADC; sample_p = time->C; time->C = sample_p - delta_time_dec; time->C_next = sample_p + delta_time_inc; time->Samp_p1 = time->B - TADC; time->sampe_phase_2 = SAMP_IA; time->sampe_phase_1 = SAMP_NIC; break; case SECTOR_2://AC samll and delta small time->Samp_p2 = time->B - TADC; sample_p = time->C; time->C = sample_p - delta_time_dec; time->C_next = sample_p + delta_time_inc; time->Samp_p1 = time->A - TADC; time->sampe_phase_2 = SAMP_IB; time->sampe_phase_1 = SAMP_NIC; break; case SECTOR_3://CA samll and delta small time->Samp_p2 = time->B - TADC; sample_p = time->A; time->A = sample_p - delta_time_dec; time->A_next = sample_p + delta_time_inc; time->Samp_p1 = time->C - TADC; time->sampe_phase_2 = SAMP_IB; time->sampe_phase_1 = SAMP_NIA; break; case SECTOR_4://BA samll and delta small time->Samp_p2 = time->C - TADC; sample_p = time->A; time->A = sample_p - delta_time_dec; time->A_next = sample_p + delta_time_inc; time->Samp_p1 = time->B - TADC; time->sampe_phase_2 = SAMP_IC; time->sampe_phase_1 = SAMP_NIA; break; case SECTOR_5://AB samll and delta small time->Samp_p2 = time->C - TADC; sample_p = time->B; time->B = sample_p - delta_time_dec; time->B_next = sample_p + delta_time_inc; time->Samp_p1 = time->A - TADC; time->sampe_phase_2 = SAMP_IC; time->sampe_phase_1 = SAMP_NIB; break; case SECTOR_6://CB samll and delta small time->Samp_p2 = time->A - TADC; sample_p = time->B; time->B = sample_p - delta_time_dec; time->B_next = sample_p + delta_time_inc; time->Samp_p1 = time->C - TADC; time->sampe_phase_2 = SAMP_IA; time->sampe_phase_1 = SAMP_NIB; break; default: break; } } static __inline void _get_boundary3_samp(current_samp_t *cs, phase_time_t *time) { #if 1 s32 sample_p; if ((time->boundary3_flags & 1) == 0) { time->boundary3_flags |= 1; sample_p = time->A; time->A = sample_p + TMIN; time->A_next = sample_p - TMIN; time->Samp_p1 = time->A - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_OLDB; time->sampe_phase_2 = SAMP_IA; }else { time->boundary3_flags &= ~1; sample_p = time->B; time->B = sample_p + TMIN; time->B_next = sample_p - TMIN; time->Samp_p1 = time->B - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_OLDA; time->sampe_phase_2 = SAMP_IB; } #else s32 delta_duty0 = (s32)time->midle - (s32)time->high; s32 delta_duty1 = (s32)time->low - (s32)time->midle; s32 delta_time_inc1 = (TMIN - delta_duty1); s32 delta_time_dec1 = min(delta_time_inc1, delta_duty1); s32 delta_time_dec2 = (TMIN - delta_duty0); s32 delta_time_inc2 = min(delta_time_dec2, delta_duty0); s32 sample_p; switch(cs->sector) { case SECTOR_1: //deltaBC > deltaAB if (delta_duty0 > delta_duty1) { sample_p = time->C; time->C = sample_p - delta_time_dec2; time->C_next = sample_p + delta_time_inc2; time->Samp_p1 = time->B - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_OLDB; time->sampe_phase_2 = SAMP_NIC; }else { sample_p = time->A; time->A = sample_p + delta_time_inc1; time->A_next = sample_p - delta_time_dec1; time->Samp_p1 = time->A - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_OLDC; time->sampe_phase_2 = SAMP_IA; } break; case SECTOR_2: //deltaAC > deltaBA if (delta_duty0 > delta_duty1) { sample_p = time->C; time->C = sample_p - delta_time_dec2; time->C_next = sample_p + delta_time_inc2; time->Samp_p1 = time->A - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_OLDA; time->sampe_phase_2 = SAMP_NIC; }else { sample_p = time->B; time->B = sample_p + delta_time_inc1; time->B_next = sample_p - delta_time_dec1; time->Samp_p1 = time->B - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_OLDB; time->sampe_phase_2 = SAMP_IB; } break; case SECTOR_3: //deltaCA > deltaBC if (delta_duty0 > delta_duty1) { sample_p = time->A; time->A = sample_p - delta_time_dec2; time->A_next = sample_p + delta_time_inc2; time->Samp_p1 = time->C - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->C - TADC; time->sampe_phase_1 = SAMP_OLDC; time->sampe_phase_2 = SAMP_NIA; }else { sample_p = time->B; time->B = sample_p + delta_time_inc1; time->B_next = sample_p - delta_time_dec1; time->Samp_p1 = time->B - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_OLDA; time->sampe_phase_2 = SAMP_IB; } break; case SECTOR_4: //CBA, //deltaBA > deltaCB if (delta_duty0 > delta_duty1) { sample_p = time->A; time->A = sample_p - delta_time_dec2; time->A_next = sample_p + delta_time_inc2; time->Samp_p1 = time->B - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->B - TADC; time->sampe_phase_1 = SAMP_OLDB; time->sampe_phase_2 = SAMP_NIA; }else { sample_p = time->C; time->C = sample_p + delta_time_inc1; time->C_next = sample_p - delta_time_dec1; time->Samp_p1 = time->C - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->C - TADC; time->sampe_phase_1 = SAMP_OLDC; time->sampe_phase_2 = SAMP_IC; } break; case SECTOR_5: //CAB, //deltaAB > deltaCA if (delta_duty0 > delta_duty1) { sample_p = time->B; time->B = sample_p - delta_time_dec2; time->B_next = sample_p + delta_time_inc2; time->Samp_p1 = time->A - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_OLDA; time->sampe_phase_2 = SAMP_NIB; }else { sample_p = time->C; time->C = sample_p + delta_time_inc1; time->C_next = sample_p - delta_time_dec1; time->Samp_p1 = time->C - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->C - TADC; time->sampe_phase_1 = SAMP_OLDB; time->sampe_phase_2 = SAMP_IC; } break; case SECTOR_6: //ACB, //deltaCB > deltaAC if (delta_duty0 > delta_duty1) { sample_p = time->B; time->B = sample_p - delta_time_dec2; time->B_next = sample_p + delta_time_inc2; time->Samp_p1 = time->C - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->C - TADC; time->sampe_phase_1 = SAMP_OLDC; time->sampe_phase_2 = SAMP_NIB; }else { sample_p = time->A; time->A = sample_p + delta_time_inc1; time->A_next = sample_p - delta_time_dec1; time->Samp_p1 = time->A - (2 * TADC + TRise);//dumy trigger time->Samp_p2 = time->A - TADC; time->sampe_phase_1 = SAMP_OLDA; time->sampe_phase_2 = SAMP_IA; } break; default: break; } #endif } static __inline void _get_regular_samp(current_samp_t *cs, phase_time_t *time) { time->Samp_p1 = time->midle - TADC; time->Samp_p2 = time->low - TADC; switch(cs->sector) { case SECTOR_1: //ABC time->sampe_phase_1 = SAMP_NIC; time->sampe_phase_2 = SAMP_IA; break; case SECTOR_2: //BAC time->sampe_phase_1 = SAMP_NIC; time->sampe_phase_2 = SAMP_IB; break; case SECTOR_3: //BCA time->sampe_phase_1 = SAMP_NIA; time->sampe_phase_2 = SAMP_IB; break; case SECTOR_4: //CBA time->sampe_phase_1 = SAMP_NIA; time->sampe_phase_2 = SAMP_IC; break; case SECTOR_5: //CAB time->sampe_phase_1 = SAMP_NIB; time->sampe_phase_2 = SAMP_IC; break; case SECTOR_6: //ACB time->sampe_phase_1 = SAMP_NIB; time->sampe_phase_2 = SAMP_IA; break; default: break; } } void phase_current_offset(current_samp_t *cs) { s32 phase_current1, phase_current2; adc_phase_current_read(cs->sector, &phase_current1, &phase_current2); if (cs->offset_sample_count > 0) { cs->offset_sample_count--; if (cs->offset_sample_count >= 0) { cs->adc_offset_a += phase_current1; cs->adc_offset_b += phase_current2; if (cs->offset_sample_count == 0) { cs->adc_offset_a = cs->adc_offset_a / NB_OFFSET_SAMPLES; cs->adc_offset_b = cs->adc_offset_b / NB_OFFSET_SAMPLES; } } } } void phase_current_sample(current_samp_t *cs){ s32 phase_current1, phase_current2; u8 b_curr_a = 0; u8 b_curr_b = 0; u8 b_curr_c = 0; phase_time_t *time = &cs->time; adc_phase_current_read(cs->sector, &phase_current1, &phase_current2); phase_current1 -= cs->adc_offset_a; phase_current2 -= cs->adc_offset_b; float current = current_i(VBUS_VOL(abs(phase_current1)), Sample_R); switch (time->sampe_phase_1) { case SAMP_IA: cs->Ia = current; b_curr_a = 1; break; case SAMP_IB: cs->Ib = current; b_curr_b = 1; break; case SAMP_IC: cs->Ic = current; b_curr_c = 1; break; case SAMP_NIA: cs->Ia = -current; b_curr_a = 1; break; case SAMP_NIB: cs->Ib = -current; b_curr_b = 1; break; case SAMP_NIC: cs->Ic = -current; b_curr_c = 1; break; case SAMP_OLDA: cs->Ia = cs->old_Ia; b_curr_a = 1; break; case SAMP_OLDB: cs->Ib = cs->old_Ib; b_curr_b = 1; break; case SAMP_OLDC: cs->Ic = cs->old_Ic; b_curr_c = 1; break; default: break; } current = current_i(VBUS_VOL(abs(phase_current2)), Sample_R); switch (time->sampe_phase_2) { case SAMP_IA: cs->Ia = current; b_curr_a = 1; break; case SAMP_IB: cs->Ib = current; b_curr_b = 1; break; case SAMP_IC: cs->Ic = current; b_curr_c = 1; break; case SAMP_NIA: cs->Ia = -current; b_curr_a = 1; break; case SAMP_NIB: cs->Ib = -current; b_curr_b = 1; break; case SAMP_NIC: cs->Ic = -current; b_curr_c = 1; break; case SAMP_OLDA: cs->Ia = cs->old_Ia; b_curr_a = 1; break; case SAMP_OLDB: cs->Ib = cs->old_Ib; b_curr_b = 1; break; case SAMP_OLDC: cs->Ic = cs->old_Ic; b_curr_c = 1; break; default: break; } if (b_curr_a == 0) { cs->Ia = -(cs->Ib + cs->Ic); } if (b_curr_b == 0) { cs->Ib = -(cs->Ia + cs->Ic); } if (b_curr_c == 0) { cs->Ic = -(cs->Ia + cs->Ib); } cs->old_Ia = cs->Ia; cs->old_Ib = cs->Ib; cs->old_Ic = cs->Ic; { static int count = 0; if (count++ % 3 == 0) { log_chan_value(1, (int)(cs->Ia * 1000)); } } } void get_phase_sample_point(current_samp_t *cs, u8 sector){ phase_time_t *time = &cs->time; if (cs->is_calibrating_offset) { time->Samp_p1 = FOC_PWM_Half_Period - 2 * TMIN; time->Samp_p2 = FOC_PWM_Half_Period - 1; return; } cs->sector = sector; time->A_next = time->A; time->B_next = time->B; time->C_next = time->C; u8 boundary = _get_sample_boundary(cs, time); if (boundary == BOUNDARY_1) { _get_boundary1_samp(cs, time); }else if (boundary == BOUNDARY_2) { _get_boundary2_samp(cs, time); }else if (boundary == BOUNDARY_3) { _get_boundary3_samp(cs, time); }else { //REGULAR, 直接可以采样 _get_regular_samp(cs, time); } } #endif void phase_current_adc_triger(current_samp_t *cs){ adc_enable_ext_trigger(); }