controller.c 26 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. bool mot_contrl_update(mot_contrl_t *ctrl) {
  206. foc_t *foc = &ctrl->foc;
  207. phase_current_get(foc->in.curr_abc);
  208. clark(foc->in.curr_abc[0], foc->in.curr_abc[1], foc->in.curr_abc[2], &foc->in.curr_ab);
  209. 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);
  210. float enc_angle = motor_encoder_get_angle();
  211. float enc_vel = motor_encoder_get_speed();
  212. if (!foc_observer_diagnostic(enc_angle, enc_vel)){
  213. /* detect encoder angle error, do something here */
  214. if (!foc_observer_sensorless_stable()) {
  215. foc->in.mot_velocity = 0;
  216. return false;
  217. }
  218. enc_angle = foc_observer_sensorless_angle();
  219. enc_vel = foc_observer_sensorless_speed();
  220. }
  221. if (!ctrl->b_mtpa_calibrate && (ctrl->force_angle != INVALID_ANGLE)) {
  222. foc->in.mot_angle = ctrl->force_angle;
  223. }else {
  224. foc->in.mot_angle = enc_angle;
  225. }
  226. #ifdef CONFIG_DQ_STEP_RESPONSE
  227. foc->in.mot_angle = 0;
  228. #endif
  229. foc->in.mot_velocity = enc_vel;
  230. foc->in.dc_vol = get_vbus_float();
  231. foc->in.b_openloop = ctrl->mode_running == CTRL_MODE_OPEN;
  232. phase_curr_unbal_check(ctrl);
  233. if (foc->in.b_openloop) {
  234. foc->in.target_vol_dq.d = line_ramp_get_interp(&ctrl->ramp_target_vd);
  235. foc->in.target_vol_dq.q = line_ramp_get_interp(&ctrl->ramp_target_vq);
  236. }
  237. foc_update(foc);
  238. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US * 2;
  239. lowpass = fclamp(lowpass, 0.001f, 1.0f);
  240. LowPass_Filter(ctrl->out_idq_filterd.d, foc->out.curr_dq.d ,lowpass);
  241. LowPass_Filter(ctrl->out_idq_filterd.q, foc->out.curr_dq.q ,lowpass);
  242. return true;
  243. }
  244. static __INLINE float mot_contrl_dc_curr_limiter(mot_contrl_t *ctrl, float maxTrq) {
  245. ctrl->pi_power.max = maxTrq;
  246. float errRef = line_ramp_get_interp(&ctrl->ramp_dc_curr_lim) - ctrl->dc_curr_filted;
  247. return PI_Controller_Run(&ctrl->pi_power, errRef);
  248. }
  249. static __INLINE float mot_contrl_vel_limiter(mot_contrl_t *ctrl, float maxTrq) {
  250. ctrl->pi_vel_lim.max = maxTrq;
  251. ctrl->pi_vel_lim.min = 0;
  252. float err = line_ramp_get_interp(&ctrl->ramp_vel_lim) - ctrl->foc.in.mot_velocity;
  253. return PI_Controller_RunVel(&ctrl->pi_vel_lim, err);
  254. }
  255. /* current vector or torque to dq axis current */
  256. static void mot_contrl_dq_assign(mot_contrl_t *ctrl) {
  257. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  258. float target_current = line_ramp_get_interp(&ctrl->ramp_target_current);
  259. if (ctrl->b_mtpa_calibrate && (ctrl->adv_angle != INVALID_ANGLE)) {
  260. float s, c;
  261. float angle_step = line_ramp_step(&ctrl->ramp_adv_angle);
  262. arm_sin_cos(angle_step + 90.0f, &s, &c);
  263. ctrl->target_idq.d = target_current * c;
  264. if (ctrl->target_idq.d > ctrl->hwlim.fw_id) {
  265. ctrl->target_idq.d = ctrl->hwlim.fw_id;
  266. }else if (ctrl->target_idq.d < -ctrl->hwlim.fw_id) {
  267. ctrl->target_idq.d = -ctrl->hwlim.fw_id;
  268. }
  269. ctrl->target_idq.q = sqrtf(SQ(target_current) - SQ(ctrl->target_idq.d));
  270. if (s < 0) {
  271. ctrl->target_idq.q = -ctrl->target_idq.q;
  272. }
  273. }else {
  274. ctrl->target_idq.d = 0;
  275. ctrl->target_idq.q = target_current;
  276. }
  277. }else if (ctrl->mode_running != CTRL_MODE_OPEN) {
  278. motor_mpta_fw_lookup(ctrl->foc.in.mot_velocity, ctrl->target_torque, &ctrl->target_idq);
  279. }
  280. u32 mask = cpu_enter_critical();
  281. foc_set_target_idq(&ctrl->foc, &ctrl->target_idq);
  282. cpu_exit_critical(mask);
  283. }
  284. static void crosszero_step_towards(float *value, float target) {
  285. static float no_cro_step = CONFIG_CrossZero_NorStep;
  286. float v_now = *value;
  287. bool cross_zero = false;
  288. float nor_step = mc_conf()->cz.normal_step;
  289. float min_step = mc_conf()->cz.min_step;
  290. float min_ramp_torque = mc_conf()->cz.low;
  291. float high_ramp_torque = mc_conf()->cz.high;
  292. if (target > 0) {
  293. if (v_now < -min_ramp_torque) {
  294. step_towards(value, -min_ramp_torque + 0.001f, nor_step);
  295. cross_zero = true;
  296. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  297. step_towards(value, target, min_step);
  298. cross_zero = true;
  299. }
  300. }else if (target == 0) {
  301. if (v_now > high_ramp_torque) {
  302. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  303. cross_zero = true;
  304. }else if (v_now >= min_ramp_torque && v_now <= high_ramp_torque) {
  305. step_towards(value, target, min_step);
  306. cross_zero = true;
  307. }
  308. }else {
  309. if (v_now > high_ramp_torque) {
  310. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  311. cross_zero = true;
  312. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  313. step_towards(value, target, min_step);
  314. cross_zero = true;
  315. }
  316. }
  317. if (!cross_zero) {
  318. step_towards(&no_cro_step, nor_step, 0.1f);
  319. step_towards(value, target, no_cro_step);
  320. }else {
  321. no_cro_step = 0.5f;
  322. }
  323. }
  324. /*called in media task */
  325. void mot_contrl_dq_calc(mot_contrl_t *ctrl) {
  326. foc_t *foc = &ctrl->foc;
  327. float etcs_out = etcs_process(&ctrl->etcs);
  328. if (ctrl->b_AutoHold) {
  329. float hold_torque = min(ctrl->protlim.torque, mc_conf()->c.max_autohold_torque);
  330. ctrl->pi_lock.max = hold_torque;
  331. ctrl->pi_lock.min = -hold_torque;
  332. float vel_count = motor_encoder_get_vel_count();
  333. float errRef = 0 - vel_count;
  334. ctrl->target_torque = PI_Controller_Run(&ctrl->pi_lock ,errRef);
  335. mot_contrl_dq_assign(ctrl);
  336. return;
  337. }
  338. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  339. line_ramp_step(&ctrl->ramp_target_current);
  340. }else if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  341. float maxTrq = line_ramp_step(&ctrl->ramp_input_torque);
  342. if (line_ramp_get_target(&ctrl->ramp_input_torque) < 0.0001f && foc->in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE) {
  343. maxTrq = 0;
  344. }
  345. crosszero_step_towards(&ctrl->target_torque, maxTrq);
  346. }else if (ctrl->mode_running == CTRL_MODE_TRQ) {
  347. float refTorque = line_ramp_step(&ctrl->ramp_input_torque);
  348. refTorque = min(refTorque, line_ramp_get_interp(&ctrl->ramp_torque_lim)) * etcs_out;
  349. float maxTrq = mot_contrl_vel_limiter(ctrl, refTorque);
  350. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  351. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  352. }else if (ctrl->mode_running == CTRL_MODE_SPD){
  353. float refSpeed;
  354. float maxSpeed;
  355. if (ctrl->b_cruiseEna) {
  356. refSpeed = line_ramp_step(&ctrl->ramp_cruise_vel);
  357. maxSpeed = line_ramp_get_target(&ctrl->ramp_cruise_vel);
  358. }else {
  359. refSpeed = line_ramp_step(&ctrl->ramp_target_vel);
  360. maxSpeed = line_ramp_get_target(&ctrl->ramp_target_vel);
  361. }
  362. float max_input = line_ramp_get_interp(&ctrl->ramp_torque_lim) * etcs_out;
  363. if (maxSpeed >= 0) {
  364. ctrl->pi_vel.max = max_input;
  365. #ifdef CONFIG_SERVO_MOTOR
  366. ctrl->pi_vel.min = -max_input;
  367. #else
  368. ctrl->pi_vel.min = -CONFIG_MAX_NEG_TORQUE;
  369. #endif
  370. }else if (maxSpeed < 0) {
  371. ctrl->pi_vel.min = -max_input;
  372. #ifdef CONFIG_SERVO_MOTOR
  373. ctrl->pi_vel.max = max_input;
  374. #else
  375. ctrl->pi_vel.max = CONFIG_MAX_NEG_TORQUE;
  376. #endif
  377. }
  378. if ((maxSpeed == 0) && (ctrl->foc.in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE)) {
  379. ctrl->pi_vel.max = 0;
  380. ctrl->pi_vel.min = 0; //防止倒转
  381. }
  382. float errRef = refSpeed - ctrl->foc.in.mot_velocity;
  383. float maxTrq = PI_Controller_RunVel(&ctrl->pi_vel, errRef);
  384. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  385. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  386. }
  387. mot_contrl_dq_assign(ctrl);
  388. }
  389. static void mot_contrl_pid(mot_contrl_t *ctrl) {
  390. float slow_ctrl_ts = (1.0f/(float)CONFIG_SPD_CTRL_TS);
  391. PI_Controller_Reset(&ctrl->pi_power, 0);
  392. ctrl->pi_power.kp = mc_conf()->c.pid[PID_IDCLim_ID].kp;
  393. ctrl->pi_power.ki = mc_conf()->c.pid[PID_IDCLim_ID].ki;
  394. ctrl->pi_power.kd = mc_conf()->c.pid[PID_IDCLim_ID].kd;
  395. ctrl->pi_power.ts = slow_ctrl_ts;
  396. PI_Controller_Reset(&ctrl->pi_lock, 0);
  397. ctrl->pi_lock.kp = mc_conf()->c.pid[PID_AutoHold_ID].kp;
  398. ctrl->pi_lock.ki = mc_conf()->c.pid[PID_AutoHold_ID].ki;
  399. ctrl->pi_lock.kd = mc_conf()->c.pid[PID_AutoHold_ID].kd;
  400. ctrl->pi_lock.ts = slow_ctrl_ts;
  401. PI_Controller_Reset(&ctrl->pi_vel_lim, 0);
  402. ctrl->pi_vel_lim.kp = mc_conf()->c.pid[PID_VelLim_ID].kp;
  403. ctrl->pi_vel_lim.ki = mc_conf()->c.pid[PID_VelLim_ID].ki;
  404. ctrl->pi_vel_lim.kd = mc_conf()->c.pid[PID_VelLim_ID].kd;
  405. ctrl->pi_vel_lim.ts = slow_ctrl_ts;
  406. PI_Controller_Reset(&ctrl->pi_vel, 0);
  407. ctrl->pi_vel.kp = mc_conf()->c.pid[PID_Vel_ID].kp;
  408. ctrl->pi_vel.ki = mc_conf()->c.pid[PID_Vel_ID].ki;
  409. ctrl->pi_vel.kd = mc_conf()->c.pid[PID_Vel_ID].kd;
  410. ctrl->pi_vel.ts = slow_ctrl_ts;
  411. }
  412. static void mot_contrl_ulimit(mot_contrl_t *ctrl) {
  413. ctrl->userlim.dc_curr = min(mc_conf()->c.max_idc, ctrl->hwlim.dc_curr);
  414. ctrl->userlim.mot_vel = min(mc_conf()->c.max_rpm, ctrl->hwlim.mot_vel);
  415. ctrl->userlim.torque = mc_conf()->c.max_torque;//MAX_TORQUE;
  416. ctrl->userlim.phase_curr = min(mc_conf()->c.max_phase_curr, ctrl->hwlim.phase_curr);
  417. ctrl->userlim.dc_vol_min = mc_conf()->c.max_dc_vol;
  418. ctrl->userlim.dc_vol_max = mc_conf()->c.min_dc_vol;
  419. ctrl->userlim.ebrk_dc_curr = 0xFF;
  420. ctrl->userlim.ebrk_torque = mc_get_ebrk_torque();
  421. }
  422. static void mot_contrl_rtlimit(mot_contrl_t *ctrl) {
  423. line_ramp_reset(&ctrl->ramp_torque_lim, ctrl->userlim.torque);
  424. line_ramp_reset(&ctrl->ramp_dc_curr_lim, ctrl->userlim.dc_curr);
  425. line_ramp_reset(&ctrl->ramp_vel_lim, ctrl->userlim.mot_vel);
  426. }
  427. void mot_contrl_slow_task(mot_contrl_t *ctrl) {
  428. line_ramp_step(&ctrl->ramp_torque_lim);
  429. line_ramp_step(&ctrl->ramp_dc_curr_lim);
  430. line_ramp_step(&ctrl->ramp_vel_lim);
  431. mot_contrl_dq_calc(ctrl);
  432. }
  433. u8 mot_contrl_protect(mot_contrl_t *ctrl) {
  434. u8 changed = FOC_LIM_NO_CHANGE;
  435. float dc_lim = (float)vbus_under_vol_limit();
  436. float torque_lim = (float)min(mos_temp_high_limit(), motor_temp_high_limit());
  437. if (ctrl->protlim.dc_curr != dc_lim || ctrl->protlim.torque != torque_lim) {
  438. if ((dc_lim > ctrl->protlim.dc_curr) || (torque_lim > ctrl->protlim.torque)) {
  439. changed = FOC_LIM_CHANGE_H;
  440. }else {
  441. changed = FOC_LIM_CHANGE_L;
  442. }
  443. ctrl->protlim.dc_curr = dc_lim;
  444. ctrl->protlim.torque = torque_lim;
  445. }
  446. return changed;
  447. }
  448. float mot_contrl_get_speed(mot_contrl_t *ctrl) {
  449. float speed = ctrl->foc.in.mot_velocity;
  450. if (!ctrl->b_start || foc_observer_is_encoder()) {
  451. speed = motor_encoder_get_speed();
  452. }else {
  453. if (foc_observer_sensorless_stable()) {
  454. speed = foc_observer_sensorless_speed();
  455. }else {
  456. speed = 0;
  457. }
  458. }
  459. return speed;
  460. }
  461. void mot_contrl_velloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  462. #ifdef CONFIG_SPEED_LADRC
  463. ladrc_change_b0(&gFoc_Ctrl.vel_adrc, b0);
  464. ladrc_change_K(&gFoc_Ctrl.vel_adrc, wcv);
  465. #else
  466. PI_Controller_Change_Kpi(&ctrl->pi_vel, wcv, b0);
  467. #endif
  468. }
  469. void mot_contrl_trqloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  470. #ifdef CONFIG_SPEED_LADRC
  471. ladrc_change_b0(&gFoc_Ctrl.vel_lim_adrc, b0);
  472. ladrc_change_K(&gFoc_Ctrl.vel_lim_adrc, wcv);
  473. #else
  474. PI_Controller_Change_Kpi(&ctrl->pi_vel_lim, wcv, b0);
  475. #endif
  476. }
  477. void mot_contrl_set_dccurr_limit(mot_contrl_t *ctrl, float ibusLimit) {
  478. if (ibusLimit > ctrl->hwlim.dc_curr) {
  479. ibusLimit = ctrl->hwlim.dc_curr;
  480. }
  481. if (ctrl->protlim.dc_curr != HW_LIMIT_NONE) {
  482. ibusLimit = min(ibusLimit, ctrl->protlim.dc_curr);
  483. }
  484. ctrl->userlim.dc_curr = ibusLimit;
  485. if (ABS(ctrl->dc_curr_filted) <= ibusLimit){
  486. line_ramp_reset(&ctrl->ramp_dc_curr_lim, ctrl->userlim.dc_curr);
  487. }else {
  488. line_ramp_set_target(&ctrl->ramp_dc_curr_lim, ctrl->userlim.dc_curr);
  489. }
  490. }
  491. void mot_contrl_set_vel_limit(mot_contrl_t *ctrl, float vel) {
  492. if (vel > ctrl->hwlim.mot_vel) {
  493. vel = ctrl->hwlim.mot_vel;
  494. }
  495. ctrl->userlim.mot_vel = vel;
  496. if (ABS(ctrl->foc.in.mot_velocity) <= vel) {
  497. line_ramp_reset(&ctrl->ramp_vel_lim, ctrl->userlim.mot_vel);
  498. }else {
  499. line_ramp_set_target(&ctrl->ramp_vel_lim, ctrl->userlim.mot_vel);
  500. }
  501. }
  502. void mot_contrl_set_vel_limit_rttime(mot_contrl_t *ctrl, u32 time) {
  503. line_ramp_set_time(&ctrl->ramp_vel_lim, (float)time);
  504. line_ramp_update(&ctrl->ramp_vel_lim);
  505. }
  506. void mot_contrl_set_torque_limit(mot_contrl_t *ctrl, float torque) {
  507. if (torque > ctrl->hwlim.torque) {
  508. torque = ctrl->hwlim.torque;
  509. }
  510. if (ctrl->protlim.torque != HW_LIMIT_NONE) {
  511. torque = min(torque, ctrl->protlim.torque);
  512. }
  513. ctrl->userlim.torque = torque;
  514. if (ABS(ctrl->target_torque) <= torque){
  515. line_ramp_reset(&ctrl->ramp_torque_lim, ctrl->userlim.torque);
  516. }else {
  517. line_ramp_set_target(&ctrl->ramp_torque_lim, ctrl->userlim.torque);
  518. }
  519. }
  520. void mot_contrl_set_torque_limit_rttime(mot_contrl_t *ctrl, u32 time) {
  521. line_ramp_set_time(&ctrl->ramp_torque_lim, (float)time);
  522. line_ramp_update(&ctrl->ramp_torque_lim);
  523. }
  524. float mot_contrl_get_ebrk_torque(mot_contrl_t *ctrl) {
  525. if (!foc_observer_is_encoder()) {
  526. return 0; //无感运行关闭能量回收
  527. }
  528. return ctrl->userlim.ebrk_torque;
  529. }
  530. void mot_contrl_set_ebrk_time(mot_contrl_t *ctrl, u32 time) {
  531. ctrl->ebrk_ramp_time = time;
  532. if ((ctrl->mode_running == CTRL_MODE_EBRAKE) && (time != ctrl->ramp_input_torque.time_dec)) {
  533. line_ramp_set_time(&ctrl->ramp_input_torque, time);
  534. line_ramp_update(&ctrl->ramp_input_torque);
  535. }
  536. }
  537. void mot_contrl_set_vdq(mot_contrl_t *ctrl, float vd, float vq) {
  538. line_ramp_set_target(&ctrl->ramp_target_vd, vd);
  539. line_ramp_set_target(&ctrl->ramp_target_vq, vq);
  540. }
  541. void mot_contrl_set_vdq_immediate(mot_contrl_t *ctrl, float vd, float vq) {
  542. line_ramp_reset(&ctrl->ramp_target_vd, vd);
  543. line_ramp_reset(&ctrl->ramp_target_vq, vq);
  544. }
  545. bool mot_contrl_set_cruise(mot_contrl_t *ctrl, bool enable) {
  546. if (enable != ctrl->b_cruiseEna) {
  547. float motSpd = mot_contrl_get_speed(ctrl);
  548. if (enable && (motSpd < CONFIG_MIN_CRUISE_RPM)) { //
  549. mot_contrl_set_error(ctrl, FOC_NowAllowed_With_Speed);
  550. return false;
  551. }
  552. line_ramp_reset(&ctrl->ramp_cruise_vel, motSpd);
  553. ctrl->b_cruiseEna = enable;
  554. }
  555. return true;
  556. }
  557. bool mot_contrl_resume_cruise(mot_contrl_t *ctrl) {
  558. ctrl->b_cruiseEna = true;
  559. line_ramp_set_time(&ctrl->ramp_cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  560. return true;
  561. }
  562. bool mot_contrl_set_cruise_speed(mot_contrl_t *ctrl, float rpm) {
  563. if (ctrl->b_cruiseEna) {
  564. if (rpm < CONFIG_MIN_CRUISE_RPM) {
  565. rpm = CONFIG_MIN_CRUISE_RPM;
  566. }
  567. float vel = min(ABS(rpm),ctrl->userlim.mot_vel)*SIGN(rpm);
  568. line_ramp_set_target(&ctrl->ramp_cruise_vel, vel);
  569. return true;
  570. }
  571. mot_contrl_set_error(ctrl, FOC_NotCruiseMode);
  572. return false;
  573. }
  574. bool mot_contrl_set_current(mot_contrl_t *ctrl, float is) {
  575. is = fclamp(is, -ctrl->userlim.phase_curr, ctrl->userlim.phase_curr);
  576. line_ramp_set_target(&ctrl->ramp_target_current, is);
  577. return true;
  578. }
  579. void mot_contrl_set_torque_ramp_time(mot_contrl_t *ctrl, u32 acc, u32 dec) {
  580. ctrl->torque_acc_time = acc;
  581. ctrl->torque_dec_time = dec;
  582. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  583. line_ramp_set_acctime(&ctrl->ramp_input_torque, acc);
  584. line_ramp_set_dectime(&ctrl->ramp_input_torque, dec);
  585. line_ramp_update(&ctrl->ramp_input_torque);
  586. }
  587. }
  588. void mot_contrl_set_torque_acc_time(mot_contrl_t *ctrl, u32 acc) {
  589. ctrl->torque_acc_time = acc;
  590. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  591. line_ramp_set_acctime(&ctrl->ramp_input_torque, acc);
  592. line_ramp_update(&ctrl->ramp_input_torque);
  593. }
  594. }
  595. bool mot_contrl_set_torque(mot_contrl_t *ctrl, float torque) {
  596. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  597. return false;
  598. }
  599. float torque_min = 0;
  600. float torque_max = ctrl->userlim.torque;
  601. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  602. torque_min = -ctrl->userlim.ebrk_torque;
  603. torque_max = 0;
  604. }
  605. torque = fclamp(torque, torque_min, torque_max);
  606. line_ramp_set_target(&ctrl->ramp_input_torque, torque);
  607. return true;
  608. }
  609. /* 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 */
  610. bool mot_contrl_set_force_torque(mot_contrl_t *ctrl, float torque) {
  611. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  612. return false;
  613. }
  614. float torque_min = -ctrl->userlim.torque;
  615. float torque_max = ctrl->userlim.torque;
  616. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  617. torque_min = -ctrl->userlim.torque;
  618. torque_max = 0;
  619. }
  620. torque = fclamp(torque, torque_min, torque_max);
  621. line_ramp_set_target(&ctrl->ramp_input_torque, torque);
  622. return true;
  623. }
  624. void mot_contrl_mtpa_calibrate(mot_contrl_t *ctrl, bool enable) {
  625. if (enable) {
  626. line_ramp_reset(&ctrl->ramp_adv_angle, 0);
  627. ctrl->b_mtpa_calibrate = true;
  628. ctrl->adv_angle = 0;
  629. }else {
  630. ctrl->adv_angle = INVALID_ANGLE;
  631. ctrl->b_mtpa_calibrate = false;
  632. }
  633. }
  634. void mot_contrl_set_autohold(mot_contrl_t *ctrl, bool lock) {
  635. if (ctrl->b_AutoHold != lock) {
  636. motor_encoder_lock_pos(lock);
  637. PI_Controller_Reset(&ctrl->pi_lock, 0);
  638. if (!lock) {
  639. float hold_torque = ctrl->target_torque * 1.1f;
  640. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  641. PI_Controller_Reset(&ctrl->pi_vel_lim, hold_torque);
  642. }else if (ctrl->mode_running == CTRL_MODE_SPD) {
  643. PI_Controller_Reset(&ctrl->pi_vel, hold_torque);
  644. }
  645. line_ramp_reset(&ctrl->ramp_input_torque, hold_torque);
  646. ctrl->autohold_torque = hold_torque;
  647. }else {
  648. ctrl->autohold_torque = 0;
  649. }
  650. ctrl->b_AutoHold = lock;
  651. }
  652. }
  653. static bool is_hw_brake_shutting_power(mot_contrl_t *ctrl) {
  654. return (ctrl->b_hw_braker && mc_hwbrk_can_shutpower());
  655. }
  656. bool mot_contrl_set_ebreak(mot_contrl_t *ctrl, bool start) {
  657. bool enable = ctrl->b_ebrk_running;
  658. if (mot_contrl_get_ebrk_torque(ctrl) == 0) {
  659. enable = false;
  660. }else if (start && ctrl->foc.in.mot_velocity >= CONFIG_MIN_RPM_FOR_EBRAKE){
  661. enable = true;
  662. }else if (!start && !is_hw_brake_shutting_power(ctrl)) {
  663. enable = false;
  664. }
  665. if (enable != ctrl->b_ebrk_running) {
  666. ctrl->b_ebrk_running = enable;
  667. if (enable) {
  668. ctrl->mode_req = CTRL_MODE_EBRAKE;
  669. }else {
  670. ctrl->mode_req = CTRL_MODE_TRQ;
  671. }
  672. }
  673. return enable;
  674. }
  675. void mot_contrl_set_hw_brake(mot_contrl_t *ctrl, bool hw_brake) {
  676. u32 mask = cpu_enter_critical();
  677. if (hw_brake != ctrl->b_hw_braker) {
  678. ctrl->b_hw_braker = hw_brake;
  679. }
  680. if (is_hw_brake_shutting_power(ctrl)) {
  681. if (!ctrl->b_ebrk_running && !mot_contrl_set_ebreak(ctrl, true)) {
  682. line_ramp_reset(&ctrl->ramp_input_torque, 0);
  683. }
  684. }
  685. cpu_exit_critical(mask);
  686. }
  687. static PI_Controller *_pid(mot_contrl_t *ctrl, u8 id) {
  688. PI_Controller *pi = NULL;
  689. if (id == PID_ID_ID) {
  690. pi = &ctrl->foc.daxis;
  691. }else if (id == PID_IQ_ID) {
  692. pi = &ctrl->foc.qaxis;
  693. }else if (id == PID_VelLim_ID) {
  694. pi = &ctrl->pi_vel_lim;
  695. }else if (id == PID_Vel_ID) {
  696. pi = &ctrl->pi_vel;
  697. }else if (id == PID_AutoHold_ID) {
  698. pi = &ctrl->pi_lock;
  699. }
  700. return pi;
  701. }
  702. void mot_contrl_set_pid(mot_contrl_t *ctrl, u8 id, float kp, float ki, float kd) {
  703. if (id > PID_Max_ID) {
  704. return;
  705. }
  706. PI_Controller *pi = _pid(ctrl, id);
  707. if (pi != NULL) {
  708. u32 mask = cpu_enter_critical();
  709. pi->kp = kp;
  710. pi->ki = ki;
  711. pi->kd = kd;
  712. cpu_exit_critical(mask);
  713. }
  714. }
  715. void mot_contrl_get_pid(mot_contrl_t *ctrl, u8 id, float *kp, float *ki, float *kd) {
  716. if (id > PID_Max_ID) {
  717. return;
  718. }
  719. PI_Controller *pi = _pid(ctrl, id);
  720. if (pi != NULL) {
  721. *kp = pi->kp;
  722. *ki = pi->ki;
  723. *kd = pi->kd;
  724. }
  725. }
  726. void mot_contrl_calc_current(mot_contrl_t *ctrl) {
  727. float vd = ctrl->foc.out.vol_dq.d;
  728. float vq = ctrl->foc.out.vol_dq.q;
  729. float id = ctrl->out_idq_filterd.d;
  730. float iq = ctrl->out_idq_filterd.q;
  731. /*
  732. 根据公式(等幅值变换,功率不等):
  733. iDC x vDC = 3/2(iq x vq + id x vd);
  734. */
  735. float m_pow = (vd * id + vq * iq);
  736. float raw_idc = 0.0f;
  737. float v_dc = get_vbus_float();
  738. if (v_dc != 0.0f) {
  739. raw_idc = m_pow / v_dc;
  740. }
  741. LowPass_Filter(ctrl->dc_curr_calc, raw_idc, 0.02f);
  742. raw_idc = get_vbus_current();
  743. if (raw_idc != NO_VALID_CURRENT) {
  744. LowPass_Filter(ctrl->dc_curr_filted, raw_idc, 0.05f);
  745. }else {
  746. ctrl->dc_curr_filted = ctrl->dc_curr_calc;
  747. }
  748. ctrl->out_current_vec = sqrtf(SQ(id) + SQ(iq));
  749. }