controller.c 28 KB

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  1. #include "controller.h"
  2. #include "foc/mc_config.h"
  3. #include "foc/foc_config.h"
  4. #include "foc/core/foc_observer.h"
  5. #include "foc/motor/motor_param.h"
  6. #include "foc/motor/motor.h"
  7. #include "foc/samples.h"
  8. #include "foc/core/f_calc.h"
  9. #include "foc/motor/current.h"
  10. #include "foc/mc_error.h"
  11. static void mot_contrl_pid(mot_contrl_t *ctrl);
  12. static void mot_contrl_ulimit(mot_contrl_t *ctrl);
  13. static void mot_contrl_rtlimit(mot_contrl_t *ctrl);
  14. static bool is_hw_brake_shutting_power(mot_contrl_t *ctrl);
  15. void mot_contrl_init(mot_contrl_t *ctrl) {
  16. memset(ctrl, 0, sizeof(mot_contrl_t));
  17. ctrl->foc.ts = (1.0f/(float)CONFIG_IDQ_CTRL_TS);
  18. ctrl->foc.half_period = FOC_PWM_Half_Period;
  19. ctrl->force_angle = INVALID_ANGLE;
  20. ctrl->adv_angle = INVALID_ANGLE;
  21. ctrl->hwlim.dc_curr = CONFIG_HW_MAX_DC_CURRENT;
  22. ctrl->hwlim.mot_vel = CONFIG_HW_MAX_MOTOR_RPM;
  23. ctrl->hwlim.phase_curr = CONFIG_HW_MAX_PHASE_CURR;
  24. //ctrl->hwlim.phase_vol = CONFIG_HW_MAX_PHASE_VOL;
  25. //ctrl->hwlim.dc_vol = CONFIG_HW_MAX_DC_VOLTAGE;
  26. ctrl->hwlim.torque = mc_conf()->m.max_torque; //电机的最大扭矩
  27. ctrl->hwlim.fw_id = mc_conf()->m.max_fw_id; //电机能支持的最大弱磁电流
  28. ctrl->protlim.dc_curr = HW_LIMIT_NONE;
  29. ctrl->protlim.torque = HW_LIMIT_NONE;
  30. ctrl->torque_acc_time = 500; //will be set after start
  31. ctrl->torque_dec_time = 500; //will be set after start
  32. ctrl->ebrk_ramp_time = 500; //will be set after start
  33. etcs_init(&ctrl->etcs);
  34. foc_init(&ctrl->foc);
  35. }
  36. bool mot_contrl_enable(mot_contrl_t *ctrl, bool start) {
  37. if (ctrl->b_start == start) {
  38. return true;
  39. }
  40. if (start) {
  41. line_ramp_init(&ctrl->ramp_torque_lim, CONFIG_LIMIT_RAMP_TIME);
  42. line_ramp_init(&ctrl->ramp_dc_curr_lim, CONFIG_LIMIT_RAMP_TIME);
  43. line_ramp_init(&ctrl->ramp_vel_lim, CONFIG_LIMIT_RAMP_TIME);
  44. line_ramp_init(&ctrl->ramp_cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  45. line_ramp_init(&ctrl->ramp_target_vd, CONFIG_FOC_VDQ_RAMP_FINAL_TIME);
  46. line_ramp_init(&ctrl->ramp_target_vq, CONFIG_FOC_VDQ_RAMP_FINAL_TIME);
  47. line_ramp_init(&ctrl->ramp_target_vel, CONFIG_CRUISE_RAMP_TIME);
  48. line_ramp_init(&ctrl->ramp_target_current, CONFIG_CURRENT_RAMP_TIME);
  49. line_ramp_init(&ctrl->ramp_input_torque, CONFIG_DEFAULT_TORQUE_RAMP_TIME);
  50. line_ramp_init(&ctrl->ramp_adv_angle, CONFIG_CURRENT_RAMP_TIME);
  51. mot_contrl_pid(ctrl);
  52. mot_contrl_ulimit(ctrl);
  53. mot_contrl_rtlimit(ctrl);
  54. }
  55. ctrl->b_ebrk_running = false;
  56. ctrl->b_AutoHold = false;
  57. ctrl->b_cruiseEna = false;
  58. ctrl->b_mtpa_calibrate = false;
  59. ctrl->b_hw_braker = false;
  60. ctrl->mode_req = CTRL_MODE_OPEN;
  61. ctrl->mode_running = CTRL_MODE_OPEN;
  62. ctrl->force_angle = INVALID_ANGLE;
  63. ctrl->adv_angle = INVALID_ANGLE;
  64. ctrl->angle_last = INVALID_ANGLE;
  65. ctrl->dc_curr_filted = 0;
  66. ctrl->dc_curr_calc = 0;
  67. ctrl->phase_curr_filted[0] = ctrl->phase_curr_filted[1] = 0;
  68. ctrl->out_idq_filterd.d = ctrl->out_idq_filterd.q = 0;
  69. ctrl->autohold_torque = 0;
  70. ctrl->out_current_vec = 0;
  71. ctrl->target_idq.d = 0;
  72. ctrl->target_idq.q = 0;
  73. ctrl->target_torque = 0;
  74. ctrl->target_torque_raw = 0;
  75. foc_init(&ctrl->foc);
  76. foc_observer_init();
  77. ctrl->b_start = start;
  78. return true;
  79. }
  80. bool mot_contrl_request_mode(mot_contrl_t *ctrl, u8 mode) {
  81. if (mode > CTRL_MODE_EBRAKE) {
  82. mot_contrl_set_error(ctrl, FOC_Param_Err);
  83. return false;
  84. }
  85. ctrl->mode_req = mode;
  86. return true;
  87. }
  88. u8 mot_contrl_mode(mot_contrl_t *ctrl) {
  89. u8 preMode = ctrl->mode_running;
  90. if (!ctrl->b_start) {
  91. ctrl->mode_running = CTRL_MODE_OPEN;
  92. }else if (ctrl->mode_req == CTRL_MODE_OPEN) {
  93. ctrl->mode_running = CTRL_MODE_OPEN;
  94. }else if (ctrl->mode_req == CTRL_MODE_SPD || ctrl->b_cruiseEna){
  95. ctrl->mode_running = CTRL_MODE_SPD;
  96. }else if (ctrl->mode_req == CTRL_MODE_CURRENT) {
  97. ctrl->mode_running = CTRL_MODE_CURRENT;
  98. }else if (ctrl->mode_req == CTRL_MODE_EBRAKE) {
  99. ctrl->mode_running = CTRL_MODE_EBRAKE;
  100. }else {
  101. if (!ctrl->b_cruiseEna) {
  102. ctrl->mode_running = CTRL_MODE_TRQ;
  103. }
  104. }
  105. if (preMode != ctrl->mode_running) {
  106. if ((preMode != ctrl->mode_running) && (ctrl->mode_running == CTRL_MODE_TRQ)) {
  107. line_ramp_set_acctime(&ctrl->ramp_input_torque, ctrl->torque_acc_time);
  108. line_ramp_set_dectime(&ctrl->ramp_input_torque, ctrl->torque_dec_time);
  109. line_ramp_update(&ctrl->ramp_input_torque);
  110. if (preMode == CTRL_MODE_SPD) {
  111. ctrl->target_torque_raw = ctrl->target_torque;
  112. PI_Controller_Reset(&ctrl->pi_vel_lim, ctrl->target_torque_raw);
  113. }else if (preMode == CTRL_MODE_CURRENT) {
  114. ctrl->target_torque_raw = line_ramp_get_interp(&ctrl->ramp_target_current);
  115. PI_Controller_Reset(&ctrl->pi_vel_lim, ctrl->target_torque_raw);
  116. }else if (preMode == CTRL_MODE_EBRAKE) {
  117. line_ramp_set_target(&ctrl->ramp_input_torque, 0);
  118. }
  119. }else if ((preMode == CTRL_MODE_TRQ) && (ctrl->mode_running == CTRL_MODE_SPD)) {
  120. PI_Controller_Reset(&ctrl->pi_vel, ctrl->target_torque);
  121. }else if ((preMode != ctrl->mode_running) && (ctrl->mode_running == CTRL_MODE_EBRAKE)) {
  122. line_ramp_reset(&ctrl->ramp_input_torque, ctrl->target_torque);
  123. line_ramp_set_time(&ctrl->ramp_input_torque, ctrl->torque_dec_time);
  124. line_ramp_set_target(&ctrl->ramp_input_torque, 0);//先把扭矩快速减小到0
  125. }else if ((preMode == CTRL_MODE_EBRAKE) && (ctrl->mode_running == CTRL_MODE_SPD)) {
  126. PI_Controller_Reset(&ctrl->pi_vel, F_get_air());
  127. }
  128. }
  129. if (ctrl->mode_running == CTRL_MODE_OPEN) {
  130. line_ramp_step(&ctrl->ramp_target_vd);
  131. line_ramp_step(&ctrl->ramp_target_vq);
  132. }
  133. return ctrl->mode_running;
  134. }
  135. static __INLINE void phase_curr_unbal_check(mot_contrl_t *ctrl) {
  136. static u32 _cycle_cnt = 0, _last_mod_cnt = 0;
  137. static float a_max = 0, b_max = 0, c_max = 0;
  138. static u32 _unbalance_cnt = 0;
  139. static u32 _unbalance_time = 0;
  140. foc_t *foc = &ctrl->foc;
  141. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US / 2.0f;
  142. if (lowpass > 1.0f) {
  143. lowpass = 1.0f;
  144. }
  145. LowPass_Filter(ctrl->phase_curr_filted[0], foc->in.curr_abc[0], lowpass);
  146. LowPass_Filter(ctrl->phase_curr_filted[1], foc->in.curr_abc[1], lowpass);
  147. ctrl->phase_curr_filted[2] = -(ctrl->phase_curr_filted[0] + ctrl->phase_curr_filted[1]);
  148. if ((ctrl->angle_last == INVALID_ANGLE) || (foc->mot_vel_radusPers < 100) || ctrl->out_current_vec < 50) {
  149. ctrl->angle_last = foc->in.mot_angle;
  150. a_max = b_max = c_max = 0;
  151. _unbalance_cnt = 0;
  152. _unbalance_time = get_tick_ms();
  153. _cycle_cnt = 0;
  154. _last_mod_cnt = 0;
  155. return;
  156. }
  157. float delta_angle = foc->in.mot_angle - ctrl->angle_last;
  158. if (delta_angle > 200 || delta_angle < -200) { //one cycle
  159. _cycle_cnt ++;
  160. }
  161. ctrl->angle_last = foc->in.mot_angle;
  162. u32 mod_cnt = _cycle_cnt % CONFIG_PHASE_UNBALANCE_PEAK_CNT;
  163. bool trigger = false;
  164. if ((mod_cnt == 0) && (_last_mod_cnt != mod_cnt)) {
  165. trigger = true;
  166. }
  167. _last_mod_cnt = mod_cnt;
  168. a_max = MAX(a_max, ctrl->phase_curr_filted[0] * (2.2f));
  169. b_max = MAX(b_max, ctrl->phase_curr_filted[1] * (2.2f));
  170. c_max = MAX(c_max, ctrl->phase_curr_filted[2] * (2.2f));
  171. if (trigger) { //经过CONFIG_PEAK_CNT个周期,已经得到peak值
  172. float i_min = 1000.0f, i_max = 0;
  173. if (a_max > i_max) {
  174. i_max = a_max;
  175. }
  176. if (a_max < i_min) {
  177. i_min = a_max;
  178. }
  179. if (b_max > i_max) {
  180. i_max = b_max;
  181. }
  182. if (b_max < i_min) {
  183. i_min = b_max;
  184. }
  185. if (c_max > i_max) {
  186. i_max = c_max;
  187. }
  188. if (c_max < i_min) {
  189. i_min = c_max;
  190. }
  191. float unbalance_r = (i_max - i_min - CONFIG_PHASE_UNBALANCE_THROLD)/(i_max + 1e-8f);
  192. if (unbalance_r >= CONFIG_PHASE_UNBALANCE_R) {
  193. if ((_unbalance_cnt++ >= 500) || (get_delta_ms(_unbalance_time) >= 1000*10)) {
  194. if (mc_set_critical_error(FOC_CRIT_PHASE_UNBalance_Err)) {
  195. mc_crit_err_add(FOC_CRIT_PHASE_UNBalance_Err, (s16)i_max, (s16)i_min);
  196. }
  197. }
  198. }else {
  199. _unbalance_cnt = 0;
  200. _unbalance_time = get_tick_ms();
  201. }
  202. a_max = b_max = c_max = 0;
  203. }
  204. }
  205. static __INLINE void mot_contrl_update_phase_vol(mot_contrl_t *ctrl) {
  206. float phase_vol[3];
  207. get_uvw_phases_raw(phase_vol);
  208. /* 三相端电压转到alpha-beta轴的相电压 */
  209. ctrl->phase_v_ab.a = (2 * phase_vol[0] - phase_vol[1] - phase_vol[2])/3.0f;
  210. ctrl->phase_v_ab.b = (phase_vol[1] - phase_vol[2]) * ONE_BY_SQRT3;
  211. /* 当前电气频率 除于相电压低通滤波器截止频率 */
  212. float We_hz = (ctrl->foc.in.mot_velocity / 60.0f * mc_conf()->m.poles);
  213. float w_r_wc = We_hz / PHASE_VOL_LPF_BAND;
  214. /* 计算低通滤波器的幅度补偿系数*/
  215. float mag_mul = sqrtf(1 + SQ(w_r_wc));
  216. ctrl->phase_v_ab.a *= mag_mul;
  217. ctrl->phase_v_ab.b *= mag_mul;
  218. /* 计算低通相位延时 */
  219. float angle_rad = fast_atan2(We_hz, PHASE_VOL_LPF_BAND);
  220. /* 延时半周期*/
  221. angle_rad += (We_hz * 2 * M_PI * ctrl->foc.ts / 2);
  222. norm_angle_rad(angle_rad);
  223. /* 补偿 alpha-beta的相位 */
  224. float sin,cos;
  225. arm_sin_cos(-pi_2_degree(angle_rad), &sin, &cos);
  226. float alpha = ctrl->phase_v_ab.a * cos + ctrl->phase_v_ab.b * sin;
  227. float beta = ctrl->phase_v_ab.b * cos - ctrl->phase_v_ab.a * sin;
  228. ctrl->phase_v_ab.a = alpha;
  229. ctrl->phase_v_ab.b = beta;
  230. }
  231. bool mot_contrl_update(mot_contrl_t *ctrl) {
  232. foc_t *foc = &ctrl->foc;
  233. mot_contrl_update_phase_vol(ctrl);
  234. phase_current_get(foc->in.curr_abc);
  235. clark(foc->in.curr_abc[0], foc->in.curr_abc[1], foc->in.curr_abc[2], &foc->in.curr_ab);
  236. foc_observer_update(foc->out.vol_albeta.a * TWO_BY_THREE, foc->out.vol_albeta.b * TWO_BY_THREE, foc->in.curr_ab.a, foc->in.curr_ab.b);
  237. float enc_angle = motor_encoder_get_angle();
  238. float enc_vel = motor_encoder_get_speed();
  239. if (!foc_observer_diagnostic(enc_angle, enc_vel)){
  240. /* detect encoder angle error, do something here */
  241. if (!foc_observer_sensorless_stable()) {
  242. foc->in.mot_velocity = 0;
  243. return false;
  244. }
  245. enc_angle = foc_observer_sensorless_angle();
  246. enc_vel = foc_observer_sensorless_speed();
  247. }
  248. if (!ctrl->b_mtpa_calibrate && (ctrl->force_angle != INVALID_ANGLE)) {
  249. foc->in.mot_angle = ctrl->force_angle;
  250. }else {
  251. foc->in.mot_angle = enc_angle;
  252. }
  253. #ifdef CONFIG_DQ_STEP_RESPONSE
  254. foc->in.mot_angle = 0;
  255. #endif
  256. foc->in.mot_velocity = enc_vel;
  257. foc->in.dc_vol = get_vbus_float();
  258. foc->in.b_openloop = ctrl->mode_running == CTRL_MODE_OPEN;
  259. phase_curr_unbal_check(ctrl);
  260. if (foc->in.b_openloop) {
  261. foc->in.target_vol_dq.d = line_ramp_get_interp(&ctrl->ramp_target_vd);
  262. foc->in.target_vol_dq.q = line_ramp_get_interp(&ctrl->ramp_target_vq);
  263. }
  264. foc_update(foc);
  265. park(foc, &ctrl->phase_v_ab, &ctrl->phase_v_dq);
  266. ctrl->duty_raw = NORM2_f(foc->out.vol_dq.d, foc->out.vol_dq.q)/(foc->in.dc_vol * CONFIG_SVM_MODULATION * SQRT3_BY_2);
  267. LowPass_Filter(ctrl->duty_filterd, ctrl->duty_raw, 0.01f);
  268. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US * 2;
  269. lowpass = fclamp(lowpass, 0.001f, 1.0f);
  270. LowPass_Filter(ctrl->out_idq_filterd.d, foc->out.curr_dq.d ,lowpass);
  271. LowPass_Filter(ctrl->out_idq_filterd.q, foc->out.curr_dq.q ,lowpass);
  272. return true;
  273. }
  274. static __INLINE float mot_contrl_dc_curr_limiter(mot_contrl_t *ctrl, float maxTrq) {
  275. ctrl->pi_power.max = maxTrq;
  276. float errRef = line_ramp_get_interp(&ctrl->ramp_dc_curr_lim) - ctrl->dc_curr_filted;
  277. return PI_Controller_Run(&ctrl->pi_power, errRef);
  278. }
  279. static __INLINE float mot_contrl_vel_limiter(mot_contrl_t *ctrl, float maxTrq) {
  280. ctrl->pi_vel_lim.max = maxTrq;
  281. ctrl->pi_vel_lim.min = 0;
  282. float err = line_ramp_get_interp(&ctrl->ramp_vel_lim) - ctrl->foc.in.mot_velocity;
  283. return PI_Controller_RunVel(&ctrl->pi_vel_lim, err);
  284. }
  285. /* current vector or torque to dq axis current */
  286. static void mot_contrl_dq_assign(mot_contrl_t *ctrl) {
  287. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  288. float target_current = line_ramp_get_interp(&ctrl->ramp_target_current);
  289. if (ctrl->b_mtpa_calibrate && (ctrl->adv_angle != INVALID_ANGLE)) {
  290. float s, c;
  291. float angle_step = line_ramp_step(&ctrl->ramp_adv_angle);
  292. arm_sin_cos(angle_step + 90.0f, &s, &c);
  293. ctrl->target_idq.d = target_current * c;
  294. if (ctrl->target_idq.d > ctrl->hwlim.fw_id) {
  295. ctrl->target_idq.d = ctrl->hwlim.fw_id;
  296. }else if (ctrl->target_idq.d < -ctrl->hwlim.fw_id) {
  297. ctrl->target_idq.d = -ctrl->hwlim.fw_id;
  298. }
  299. ctrl->target_idq.q = sqrtsub2_f(target_current, ctrl->target_idq.d);
  300. if (s < 0) {
  301. ctrl->target_idq.q = -ctrl->target_idq.q;
  302. }
  303. }else {
  304. ctrl->target_idq.d = 0;
  305. ctrl->target_idq.q = target_current;
  306. }
  307. }else if (ctrl->mode_running != CTRL_MODE_OPEN) {
  308. motor_mpta_fw_lookup(ctrl->foc.in.mot_velocity, ctrl->target_torque, &ctrl->target_idq);
  309. }
  310. u32 mask = cpu_enter_critical();
  311. foc_set_target_idq(&ctrl->foc, &ctrl->target_idq);
  312. cpu_exit_critical(mask);
  313. }
  314. static void crosszero_step_towards(float *value, float target) {
  315. static float no_cro_step = CONFIG_CrossZero_NorStep;
  316. float v_now = *value;
  317. bool cross_zero = false;
  318. float nor_step = mc_conf()->cz.normal_step;
  319. float min_step = mc_conf()->cz.min_step;
  320. float min_ramp_torque = mc_conf()->cz.low;
  321. float high_ramp_torque = mc_conf()->cz.high;
  322. if (target > 0) {
  323. if (v_now < -min_ramp_torque) {
  324. step_towards(value, -min_ramp_torque + 0.001f, nor_step);
  325. cross_zero = true;
  326. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  327. step_towards(value, target, min_step);
  328. cross_zero = true;
  329. }
  330. }else if (target == 0) {
  331. if (v_now > high_ramp_torque) {
  332. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  333. cross_zero = true;
  334. }else if (v_now >= min_ramp_torque && v_now <= high_ramp_torque) {
  335. step_towards(value, target, min_step);
  336. cross_zero = true;
  337. }
  338. }else {
  339. if (v_now > high_ramp_torque) {
  340. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  341. cross_zero = true;
  342. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  343. step_towards(value, target, min_step);
  344. cross_zero = true;
  345. }
  346. }
  347. if (!cross_zero) {
  348. step_towards(&no_cro_step, nor_step, 0.1f);
  349. step_towards(value, target, no_cro_step);
  350. }else {
  351. no_cro_step = 0.5f;
  352. }
  353. }
  354. /*called in media task */
  355. void mot_contrl_dq_calc(mot_contrl_t *ctrl) {
  356. foc_t *foc = &ctrl->foc;
  357. float etcs_out = etcs_process(&ctrl->etcs);
  358. if (ctrl->b_AutoHold) {
  359. float hold_torque = min(ctrl->protlim.torque, mc_conf()->c.max_autohold_torque);
  360. ctrl->pi_lock.max = hold_torque;
  361. ctrl->pi_lock.min = -hold_torque;
  362. float vel_count = motor_encoder_get_vel_count();
  363. float errRef = 0 - vel_count;
  364. ctrl->target_torque = PI_Controller_Run(&ctrl->pi_lock ,errRef);
  365. mot_contrl_dq_assign(ctrl);
  366. return;
  367. }
  368. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  369. line_ramp_step(&ctrl->ramp_target_current);
  370. }else if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  371. float maxTrq = line_ramp_step(&ctrl->ramp_input_torque);
  372. if (line_ramp_get_target(&ctrl->ramp_input_torque) < 0.0001f && foc->in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE) {
  373. maxTrq = 0;
  374. }
  375. crosszero_step_towards(&ctrl->target_torque, maxTrq);
  376. }else if (ctrl->mode_running == CTRL_MODE_TRQ) {
  377. float refTorque = line_ramp_step(&ctrl->ramp_input_torque);
  378. refTorque = min(refTorque, line_ramp_get_interp(&ctrl->ramp_torque_lim)) * etcs_out;
  379. float maxTrq = mot_contrl_vel_limiter(ctrl, refTorque);
  380. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  381. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  382. }else if (ctrl->mode_running == CTRL_MODE_SPD){
  383. float refSpeed;
  384. float maxSpeed;
  385. if (ctrl->b_cruiseEna) {
  386. refSpeed = line_ramp_step(&ctrl->ramp_cruise_vel);
  387. maxSpeed = line_ramp_get_target(&ctrl->ramp_cruise_vel);
  388. }else {
  389. refSpeed = line_ramp_step(&ctrl->ramp_target_vel);
  390. maxSpeed = line_ramp_get_target(&ctrl->ramp_target_vel);
  391. }
  392. float max_input = line_ramp_get_interp(&ctrl->ramp_torque_lim) * etcs_out;
  393. if (maxSpeed >= 0) {
  394. ctrl->pi_vel.max = max_input;
  395. #ifdef CONFIG_SERVO_MOTOR
  396. ctrl->pi_vel.min = -max_input;
  397. #else
  398. ctrl->pi_vel.min = -CONFIG_MAX_NEG_TORQUE;
  399. #endif
  400. }else if (maxSpeed < 0) {
  401. ctrl->pi_vel.min = -max_input;
  402. #ifdef CONFIG_SERVO_MOTOR
  403. ctrl->pi_vel.max = max_input;
  404. #else
  405. ctrl->pi_vel.max = CONFIG_MAX_NEG_TORQUE;
  406. #endif
  407. }
  408. if ((maxSpeed == 0) && (ctrl->foc.in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE)) {
  409. ctrl->pi_vel.max = 0;
  410. ctrl->pi_vel.min = 0; //防止倒转
  411. }
  412. float errRef = refSpeed - ctrl->foc.in.mot_velocity;
  413. float maxTrq = PI_Controller_RunVel(&ctrl->pi_vel, errRef);
  414. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  415. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  416. }
  417. mot_contrl_dq_assign(ctrl);
  418. }
  419. static void mot_contrl_pid(mot_contrl_t *ctrl) {
  420. float slow_ctrl_ts = (1.0f/(float)CONFIG_SPD_CTRL_TS);
  421. PI_Controller_Reset(&ctrl->pi_power, 0);
  422. ctrl->pi_power.kp = mc_conf()->c.pid[PID_IDCLim_ID].kp;
  423. ctrl->pi_power.ki = mc_conf()->c.pid[PID_IDCLim_ID].ki;
  424. ctrl->pi_power.kd = mc_conf()->c.pid[PID_IDCLim_ID].kd;
  425. ctrl->pi_power.ts = slow_ctrl_ts;
  426. PI_Controller_Reset(&ctrl->pi_lock, 0);
  427. ctrl->pi_lock.kp = mc_conf()->c.pid[PID_AutoHold_ID].kp;
  428. ctrl->pi_lock.ki = mc_conf()->c.pid[PID_AutoHold_ID].ki;
  429. ctrl->pi_lock.kd = mc_conf()->c.pid[PID_AutoHold_ID].kd;
  430. ctrl->pi_lock.ts = slow_ctrl_ts;
  431. PI_Controller_Reset(&ctrl->pi_vel_lim, 0);
  432. ctrl->pi_vel_lim.kp = mc_conf()->c.pid[PID_VelLim_ID].kp;
  433. ctrl->pi_vel_lim.ki = mc_conf()->c.pid[PID_VelLim_ID].ki;
  434. ctrl->pi_vel_lim.kd = mc_conf()->c.pid[PID_VelLim_ID].kd;
  435. ctrl->pi_vel_lim.ts = slow_ctrl_ts;
  436. PI_Controller_Reset(&ctrl->pi_vel, 0);
  437. ctrl->pi_vel.kp = mc_conf()->c.pid[PID_Vel_ID].kp;
  438. ctrl->pi_vel.ki = mc_conf()->c.pid[PID_Vel_ID].ki;
  439. ctrl->pi_vel.kd = mc_conf()->c.pid[PID_Vel_ID].kd;
  440. ctrl->pi_vel.ts = slow_ctrl_ts;
  441. }
  442. static void mot_contrl_ulimit(mot_contrl_t *ctrl) {
  443. ctrl->userlim.dc_curr = min(mc_conf()->c.max_idc, ctrl->hwlim.dc_curr);
  444. ctrl->userlim.mot_vel = min(mc_conf()->c.max_rpm, ctrl->hwlim.mot_vel);
  445. ctrl->userlim.torque = mc_conf()->c.max_torque;//MAX_TORQUE;
  446. ctrl->userlim.phase_curr = min(mc_conf()->c.max_phase_curr, ctrl->hwlim.phase_curr);
  447. ctrl->userlim.dc_vol_min = mc_conf()->c.max_dc_vol;
  448. ctrl->userlim.dc_vol_max = mc_conf()->c.min_dc_vol;
  449. ctrl->userlim.ebrk_dc_curr = 0xFF;
  450. ctrl->userlim.ebrk_torque = mc_get_ebrk_torque();
  451. }
  452. static void mot_contrl_rtlimit(mot_contrl_t *ctrl) {
  453. line_ramp_reset(&ctrl->ramp_torque_lim, ctrl->userlim.torque);
  454. line_ramp_reset(&ctrl->ramp_dc_curr_lim, ctrl->userlim.dc_curr);
  455. line_ramp_reset(&ctrl->ramp_vel_lim, ctrl->userlim.mot_vel);
  456. }
  457. void mot_contrl_slow_task(mot_contrl_t *ctrl) {
  458. line_ramp_step(&ctrl->ramp_torque_lim);
  459. line_ramp_step(&ctrl->ramp_dc_curr_lim);
  460. line_ramp_step(&ctrl->ramp_vel_lim);
  461. mot_contrl_dq_calc(ctrl);
  462. }
  463. u8 mot_contrl_protect(mot_contrl_t *ctrl) {
  464. float torque_lim;
  465. u8 changed = FOC_LIM_NO_CHANGE;
  466. float dc_lim = (float)vbus_voltage_low_limit();
  467. float mot_lim_r = motor_temp_high_limit();
  468. float mos_lim_r = mos_temp_high_limit();
  469. float mos_torque = HW_LIMIT_NONE;
  470. float mot_torque = HW_LIMIT_NONE;
  471. float mot_idc = HW_LIMIT_NONE;
  472. if (mot_lim_r < 1.0f) {
  473. mot_torque = mot_lim_r * mc_gear_conf()->max_torque;
  474. mot_idc = mot_lim_r * mc_gear_conf()->max_idc;
  475. }
  476. if (mos_lim_r < 1.0f) {
  477. mos_torque = mos_lim_r * mc_gear_conf()->max_torque;
  478. }
  479. dc_lim = min(dc_lim, mot_idc);
  480. torque_lim = min(mos_torque, mot_torque);
  481. if (ctrl->protlim.dc_curr != dc_lim || ctrl->protlim.torque != torque_lim) {
  482. if ((dc_lim > ctrl->protlim.dc_curr) || (torque_lim > ctrl->protlim.torque)) {
  483. changed = FOC_LIM_CHANGE_H;
  484. }else {
  485. changed = FOC_LIM_CHANGE_L;
  486. }
  487. ctrl->protlim.dc_curr = dc_lim;
  488. ctrl->protlim.torque = torque_lim;
  489. }
  490. return changed;
  491. }
  492. float mot_contrl_get_speed(mot_contrl_t *ctrl) {
  493. float speed = ctrl->foc.in.mot_velocity;
  494. if (!ctrl->b_start || foc_observer_is_encoder()) {
  495. speed = motor_encoder_get_speed();
  496. }else {
  497. if (foc_observer_sensorless_stable()) {
  498. speed = foc_observer_sensorless_speed();
  499. }else {
  500. speed = 0;
  501. }
  502. }
  503. return speed;
  504. }
  505. void mot_contrl_velloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  506. #ifdef CONFIG_SPEED_LADRC
  507. ladrc_change_b0(&gFoc_Ctrl.vel_adrc, b0);
  508. ladrc_change_K(&gFoc_Ctrl.vel_adrc, wcv);
  509. #else
  510. PI_Controller_Change_Kpi(&ctrl->pi_vel, wcv, b0);
  511. #endif
  512. }
  513. void mot_contrl_trqloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  514. #ifdef CONFIG_SPEED_LADRC
  515. ladrc_change_b0(&gFoc_Ctrl.vel_lim_adrc, b0);
  516. ladrc_change_K(&gFoc_Ctrl.vel_lim_adrc, wcv);
  517. #else
  518. PI_Controller_Change_Kpi(&ctrl->pi_vel_lim, wcv, b0);
  519. #endif
  520. }
  521. void mot_contrl_set_dccurr_limit(mot_contrl_t *ctrl, float ibusLimit) {
  522. if (ibusLimit > ctrl->hwlim.dc_curr) {
  523. ibusLimit = ctrl->hwlim.dc_curr;
  524. }
  525. if (ctrl->protlim.dc_curr != HW_LIMIT_NONE) {
  526. ibusLimit = min(ibusLimit, ctrl->protlim.dc_curr);
  527. }
  528. ctrl->userlim.dc_curr = ibusLimit;
  529. if (ABS(ctrl->dc_curr_filted) <= ibusLimit){
  530. line_ramp_reset(&ctrl->ramp_dc_curr_lim, ctrl->userlim.dc_curr);
  531. }else {
  532. line_ramp_set_target(&ctrl->ramp_dc_curr_lim, ctrl->userlim.dc_curr);
  533. }
  534. }
  535. void mot_contrl_set_vel_limit(mot_contrl_t *ctrl, float vel) {
  536. if (vel > ctrl->hwlim.mot_vel) {
  537. vel = ctrl->hwlim.mot_vel;
  538. }
  539. ctrl->userlim.mot_vel = vel;
  540. if (ABS(ctrl->foc.in.mot_velocity) <= vel) {
  541. line_ramp_reset(&ctrl->ramp_vel_lim, ctrl->userlim.mot_vel);
  542. }else {
  543. line_ramp_set_target(&ctrl->ramp_vel_lim, ctrl->userlim.mot_vel);
  544. }
  545. }
  546. void mot_contrl_set_vel_limit_rttime(mot_contrl_t *ctrl, u32 time) {
  547. line_ramp_set_time(&ctrl->ramp_vel_lim, (float)time);
  548. line_ramp_update(&ctrl->ramp_vel_lim);
  549. }
  550. void mot_contrl_set_torque_limit(mot_contrl_t *ctrl, float torque) {
  551. if (torque > ctrl->hwlim.torque) {
  552. torque = ctrl->hwlim.torque;
  553. }
  554. if (ctrl->protlim.torque != HW_LIMIT_NONE) {
  555. torque = min(torque, ctrl->protlim.torque);
  556. }
  557. ctrl->userlim.torque = torque;
  558. if (ABS(ctrl->target_torque) <= torque){
  559. line_ramp_reset(&ctrl->ramp_torque_lim, ctrl->userlim.torque);
  560. }else {
  561. line_ramp_set_target(&ctrl->ramp_torque_lim, ctrl->userlim.torque);
  562. }
  563. }
  564. void mot_contrl_set_torque_limit_rttime(mot_contrl_t *ctrl, u32 time) {
  565. line_ramp_set_time(&ctrl->ramp_torque_lim, (float)time);
  566. line_ramp_update(&ctrl->ramp_torque_lim);
  567. }
  568. float mot_contrl_get_ebrk_torque(mot_contrl_t *ctrl) {
  569. if (!foc_observer_is_encoder()) {
  570. return 0; //无感运行关闭能量回收
  571. }
  572. return ctrl->userlim.ebrk_torque;
  573. }
  574. void mot_contrl_set_ebrk_time(mot_contrl_t *ctrl, u32 time) {
  575. ctrl->ebrk_ramp_time = time;
  576. if ((ctrl->mode_running == CTRL_MODE_EBRAKE) && (time != ctrl->ramp_input_torque.time_dec)) {
  577. line_ramp_set_time(&ctrl->ramp_input_torque, time);
  578. line_ramp_update(&ctrl->ramp_input_torque);
  579. }
  580. }
  581. void mot_contrl_set_vdq(mot_contrl_t *ctrl, float vd, float vq) {
  582. line_ramp_set_target(&ctrl->ramp_target_vd, vd);
  583. line_ramp_set_target(&ctrl->ramp_target_vq, vq);
  584. }
  585. void mot_contrl_set_vdq_immediate(mot_contrl_t *ctrl, float vd, float vq) {
  586. line_ramp_reset(&ctrl->ramp_target_vd, vd);
  587. line_ramp_reset(&ctrl->ramp_target_vq, vq);
  588. }
  589. bool mot_contrl_set_cruise(mot_contrl_t *ctrl, bool enable) {
  590. if (enable != ctrl->b_cruiseEna) {
  591. float motSpd = mot_contrl_get_speed(ctrl);
  592. if (enable && (motSpd < CONFIG_MIN_CRUISE_RPM)) { //
  593. mot_contrl_set_error(ctrl, FOC_NowAllowed_With_Speed);
  594. return false;
  595. }
  596. line_ramp_reset(&ctrl->ramp_cruise_vel, motSpd);
  597. ctrl->b_cruiseEna = enable;
  598. }
  599. return true;
  600. }
  601. bool mot_contrl_resume_cruise(mot_contrl_t *ctrl) {
  602. ctrl->b_cruiseEna = true;
  603. line_ramp_set_time(&ctrl->ramp_cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  604. return true;
  605. }
  606. bool mot_contrl_set_cruise_speed(mot_contrl_t *ctrl, float rpm) {
  607. if (ctrl->b_cruiseEna) {
  608. if (rpm < CONFIG_MIN_CRUISE_RPM) {
  609. rpm = CONFIG_MIN_CRUISE_RPM;
  610. }
  611. float vel = min(ABS(rpm),ctrl->userlim.mot_vel)*SIGN(rpm);
  612. line_ramp_set_target(&ctrl->ramp_cruise_vel, vel);
  613. return true;
  614. }
  615. mot_contrl_set_error(ctrl, FOC_NotCruiseMode);
  616. return false;
  617. }
  618. bool mot_contrl_set_current(mot_contrl_t *ctrl, float is) {
  619. is = fclamp(is, -ctrl->userlim.phase_curr, ctrl->userlim.phase_curr);
  620. line_ramp_set_target(&ctrl->ramp_target_current, is);
  621. return true;
  622. }
  623. void mot_contrl_set_torque_ramp_time(mot_contrl_t *ctrl, u32 acc, u32 dec) {
  624. ctrl->torque_acc_time = acc;
  625. ctrl->torque_dec_time = dec;
  626. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  627. line_ramp_set_acctime(&ctrl->ramp_input_torque, acc);
  628. line_ramp_set_dectime(&ctrl->ramp_input_torque, dec);
  629. line_ramp_update(&ctrl->ramp_input_torque);
  630. }
  631. }
  632. void mot_contrl_set_torque_acc_time(mot_contrl_t *ctrl, u32 acc) {
  633. ctrl->torque_acc_time = acc;
  634. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  635. line_ramp_set_acctime(&ctrl->ramp_input_torque, acc);
  636. line_ramp_update(&ctrl->ramp_input_torque);
  637. }
  638. }
  639. bool mot_contrl_set_torque(mot_contrl_t *ctrl, float torque) {
  640. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  641. return false;
  642. }
  643. float torque_min = 0;
  644. float torque_max = ctrl->userlim.torque;
  645. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  646. torque_min = -ctrl->userlim.ebrk_torque;
  647. torque_max = 0;
  648. }
  649. torque = fclamp(torque, torque_min, torque_max);
  650. line_ramp_set_target(&ctrl->ramp_input_torque, torque);
  651. return true;
  652. }
  653. /* 这个接口只在上位机直接设置扭矩的时候调试,其他情况一律不能使用,扭矩请求可以未负 */
  654. bool mot_contrl_set_force_torque(mot_contrl_t *ctrl, float torque) {
  655. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  656. return false;
  657. }
  658. float torque_min = -ctrl->userlim.torque;
  659. float torque_max = ctrl->userlim.torque;
  660. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  661. torque_min = -ctrl->userlim.torque;
  662. torque_max = 0;
  663. }
  664. torque = fclamp(torque, torque_min, torque_max);
  665. line_ramp_set_target(&ctrl->ramp_input_torque, torque);
  666. return true;
  667. }
  668. void mot_contrl_mtpa_calibrate(mot_contrl_t *ctrl, bool enable) {
  669. if (enable) {
  670. line_ramp_reset(&ctrl->ramp_adv_angle, 0);
  671. ctrl->b_mtpa_calibrate = true;
  672. ctrl->adv_angle = 0;
  673. }else {
  674. ctrl->adv_angle = INVALID_ANGLE;
  675. ctrl->b_mtpa_calibrate = false;
  676. }
  677. }
  678. void mot_contrl_set_autohold(mot_contrl_t *ctrl, bool lock) {
  679. if (ctrl->b_AutoHold != lock) {
  680. motor_encoder_lock_pos(lock);
  681. PI_Controller_Reset(&ctrl->pi_lock, 0);
  682. if (!lock) {
  683. float hold_torque = ctrl->target_torque * 1.1f;
  684. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  685. PI_Controller_Reset(&ctrl->pi_vel_lim, hold_torque);
  686. }else if (ctrl->mode_running == CTRL_MODE_SPD) {
  687. PI_Controller_Reset(&ctrl->pi_vel, hold_torque);
  688. }
  689. line_ramp_reset(&ctrl->ramp_input_torque, hold_torque);
  690. ctrl->autohold_torque = hold_torque;
  691. }else {
  692. ctrl->autohold_torque = 0;
  693. }
  694. ctrl->b_AutoHold = lock;
  695. }
  696. }
  697. static bool is_hw_brake_shutting_power(mot_contrl_t *ctrl) {
  698. return (ctrl->b_hw_braker && mc_hwbrk_can_shutpower());
  699. }
  700. bool mot_contrl_set_ebreak(mot_contrl_t *ctrl, bool start) {
  701. bool enable = ctrl->b_ebrk_running;
  702. if (mot_contrl_get_ebrk_torque(ctrl) == 0) {
  703. enable = false;
  704. }else if (start && ctrl->foc.in.mot_velocity >= CONFIG_MIN_RPM_FOR_EBRAKE){
  705. enable = true;
  706. }else if (!start && !is_hw_brake_shutting_power(ctrl)) {
  707. enable = false;
  708. }
  709. if (enable != ctrl->b_ebrk_running) {
  710. ctrl->b_ebrk_running = enable;
  711. if (enable) {
  712. ctrl->mode_req = CTRL_MODE_EBRAKE;
  713. }else {
  714. ctrl->mode_req = CTRL_MODE_TRQ;
  715. }
  716. }
  717. return enable;
  718. }
  719. void mot_contrl_set_hw_brake(mot_contrl_t *ctrl, bool hw_brake) {
  720. u32 mask = cpu_enter_critical();
  721. if (hw_brake != ctrl->b_hw_braker) {
  722. ctrl->b_hw_braker = hw_brake;
  723. }
  724. if (is_hw_brake_shutting_power(ctrl)) {
  725. if (!ctrl->b_ebrk_running && !mot_contrl_set_ebreak(ctrl, true)) {
  726. line_ramp_reset(&ctrl->ramp_input_torque, 0);
  727. }
  728. }
  729. cpu_exit_critical(mask);
  730. }
  731. static PI_Controller *_pid(mot_contrl_t *ctrl, u8 id) {
  732. PI_Controller *pi = NULL;
  733. if (id == PID_ID_ID) {
  734. pi = &ctrl->foc.daxis;
  735. }else if (id == PID_IQ_ID) {
  736. pi = &ctrl->foc.qaxis;
  737. }else if (id == PID_VelLim_ID) {
  738. pi = &ctrl->pi_vel_lim;
  739. }else if (id == PID_Vel_ID) {
  740. pi = &ctrl->pi_vel;
  741. }else if (id == PID_AutoHold_ID) {
  742. pi = &ctrl->pi_lock;
  743. }
  744. return pi;
  745. }
  746. void mot_contrl_set_pid(mot_contrl_t *ctrl, u8 id, float kp, float ki, float kd) {
  747. if (id > PID_Max_ID) {
  748. return;
  749. }
  750. PI_Controller *pi = _pid(ctrl, id);
  751. if (pi != NULL) {
  752. u32 mask = cpu_enter_critical();
  753. pi->kp = kp;
  754. pi->ki = ki;
  755. pi->kd = kd;
  756. cpu_exit_critical(mask);
  757. }
  758. }
  759. void mot_contrl_get_pid(mot_contrl_t *ctrl, u8 id, float *kp, float *ki, float *kd) {
  760. if (id > PID_Max_ID) {
  761. return;
  762. }
  763. PI_Controller *pi = _pid(ctrl, id);
  764. if (pi != NULL) {
  765. *kp = pi->kp;
  766. *ki = pi->ki;
  767. *kd = pi->kd;
  768. }
  769. }
  770. void mot_contrl_calc_current(mot_contrl_t *ctrl) {
  771. float vd = ctrl->foc.out.vol_dq.d;
  772. float vq = ctrl->foc.out.vol_dq.q;
  773. float id = ctrl->out_idq_filterd.d;
  774. float iq = ctrl->out_idq_filterd.q;
  775. /*
  776. 根据公式(等幅值变换,功率不等):
  777. iDC x vDC = 3/2(iq x vq + id x vd);
  778. */
  779. float m_pow = (vd * id + vq * iq);
  780. float raw_idc = 0.0f;
  781. float v_dc = get_vbus_float();
  782. if (v_dc != 0.0f) {
  783. raw_idc = m_pow / v_dc;
  784. }
  785. LowPass_Filter(ctrl->dc_curr_calc, raw_idc, 0.02f);
  786. raw_idc = get_vbus_current();
  787. if (raw_idc != NO_VALID_CURRENT) {
  788. LowPass_Filter(ctrl->dc_curr_filted, raw_idc, 0.05f);
  789. }else {
  790. ctrl->dc_curr_filted = ctrl->dc_curr_calc;
  791. }
  792. ctrl->out_current_vec = NORM2_f(id, iq);
  793. }