controller.c 25 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->foc.d_ramp_time = CURRENT_LOOP_RAMP_COUNT;
  22. ctrl->foc.q_ramp_time = CURRENT_LOOP_RAMP_COUNT;
  23. ctrl->hwlim.dc_curr = CONFIG_HW_MAX_DC_CURRENT;
  24. ctrl->hwlim.mot_vel = CONFIG_HW_MAX_MOTOR_RPM;
  25. ctrl->hwlim.phase_curr = CONFIG_HW_MAX_PHASE_CURR;
  26. ctrl->hwlim.phase_vol = CONFIG_HW_MAX_PHASE_VOL;
  27. ctrl->hwlim.dc_vol = CONFIG_HW_MAX_DC_VOLTAGE;
  28. ctrl->hwlim.torque = mc_conf()->m.max_torque; //电机的最大扭矩
  29. ctrl->hwlim.fw_id = mc_conf()->m.max_fw_id; //电池能支持的最大弱磁电流
  30. ctrl->protlim.dc_curr = HW_LIMIT_NONE;
  31. ctrl->protlim.torque = HW_LIMIT_NONE;
  32. ctrl->torque_acc_time = 500;
  33. ctrl->torque_dec_time = 500;//will be set after start
  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->torque_lim, CONFIG_LIMIT_RAMP_TIME);
  42. line_ramp_init(&ctrl->dc_curr_lim, CONFIG_LIMIT_RAMP_TIME);
  43. line_ramp_init(&ctrl->vel_lim, CONFIG_LIMIT_RAMP_TIME);
  44. line_ramp_init(&ctrl->cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  45. line_ramp_init(&ctrl->target_vd, CONFIG_FOC_VDQ_RAMP_FINAL_TIME);
  46. line_ramp_init(&ctrl->target_vq, CONFIG_FOC_VDQ_RAMP_FINAL_TIME);
  47. line_ramp_init(&ctrl->target_vel, CONFIG_CRUISE_RAMP_TIME);
  48. line_ramp_init(&ctrl->target_current, CONFIG_CURRENT_RAMP_TIME);
  49. line_ramp_init(&ctrl->input_torque, CONFIG_DEFAULT_TORQUE_RAMP_TIME);
  50. mot_contrl_pid(ctrl);
  51. mot_contrl_ulimit(ctrl);
  52. mot_contrl_rtlimit(ctrl);
  53. etcs_init(&ctrl->etcs);
  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->input_torque, ctrl->torque_acc_time);
  108. line_ramp_set_dectime(&ctrl->input_torque, ctrl->torque_acc_time);
  109. line_ramp_update(&ctrl->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->target_current);
  115. PI_Controller_Reset(&ctrl->pi_vel_lim, ctrl->target_torque_raw);
  116. }
  117. }else if ((preMode == CTRL_MODE_TRQ) && (ctrl->mode_running == CTRL_MODE_SPD)) {
  118. PI_Controller_Reset(&ctrl->pi_vel, ctrl->target_torque);
  119. }else if ((preMode != ctrl->mode_running) && (ctrl->mode_running == CTRL_MODE_EBRAKE)) {
  120. line_ramp_reset(&ctrl->input_torque, ctrl->target_torque);
  121. line_ramp_set_time(&ctrl->input_torque, ctrl->ebrk_ramp_time);
  122. line_ramp_set_target(&ctrl->input_torque, motor_get_ebreak_toruqe(ctrl->foc.in.mot_velocity));
  123. }else if ((preMode == CTRL_MODE_EBRAKE) && (ctrl->mode_running == CTRL_MODE_SPD)) {
  124. PI_Controller_Reset(&ctrl->pi_vel, F_get_air());
  125. }
  126. }
  127. if (ctrl->mode_running == CTRL_MODE_OPEN) {
  128. line_ramp_step(&ctrl->target_vd);
  129. line_ramp_step(&ctrl->target_vq);
  130. }
  131. return ctrl->mode_running;
  132. }
  133. static __INLINE void phase_curr_unbal_check(mot_contrl_t *ctrl) {
  134. static u32 _cycle_cnt = 0, _last_mod_cnt = 0;
  135. static float a_max = 0, b_max = 0, c_max = 0;
  136. static u32 _unbalance_cnt = 0;
  137. static u32 _unbalance_time = 0;
  138. foc_t *foc = &ctrl->foc;
  139. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US / 2.0f;
  140. if (lowpass > 1.0f) {
  141. lowpass = 1.0f;
  142. }
  143. LowPass_Filter(ctrl->phase_curr_filted[0], foc->in.curr_abc[0], lowpass);
  144. LowPass_Filter(ctrl->phase_curr_filted[1], foc->in.curr_abc[1], lowpass);
  145. ctrl->phase_curr_filted[2] = -(ctrl->phase_curr_filted[0] + ctrl->phase_curr_filted[1]);
  146. if ((ctrl->angle_last == INVALID_ANGLE) || (foc->mot_vel_radusPers < 100)) {
  147. ctrl->angle_last = foc->in.mot_angle;
  148. a_max = b_max = c_max = 0;
  149. _unbalance_cnt = 0;
  150. _unbalance_time = get_tick_ms();
  151. _cycle_cnt = 0;
  152. _last_mod_cnt = 0;
  153. return;
  154. }
  155. float delta_angle = foc->in.mot_angle - ctrl->angle_last;
  156. if (delta_angle > 200 || delta_angle < -200) { //one cycle
  157. _cycle_cnt ++;
  158. }
  159. ctrl->angle_last = foc->in.mot_angle;
  160. u32 mod_cnt = _cycle_cnt % CONFIG_PHASE_UNBALANCE_PEAK_CNT;
  161. bool trigger = false;
  162. if ((mod_cnt == 0) && (_last_mod_cnt != mod_cnt)) {
  163. trigger = true;
  164. }
  165. _last_mod_cnt = mod_cnt;
  166. a_max = MAX(a_max, ctrl->phase_curr_filted[0] * (2.2f));
  167. b_max = MAX(b_max, ctrl->phase_curr_filted[1] * (2.2f));
  168. c_max = MAX(c_max, ctrl->phase_curr_filted[2] * (2.2f));
  169. if (trigger) { //经过CONFIG_PEAK_CNT个周期,已经得到peak值
  170. float i_min = 1000.0f, i_max = 0;
  171. if (a_max > i_max) {
  172. i_max = a_max;
  173. }
  174. if (a_max < i_min) {
  175. i_min = a_max;
  176. }
  177. if (b_max > i_max) {
  178. i_max = b_max;
  179. }
  180. if (b_max < i_min) {
  181. i_min = b_max;
  182. }
  183. if (c_max > i_max) {
  184. i_max = c_max;
  185. }
  186. if (c_max < i_min) {
  187. i_min = c_max;
  188. }
  189. float unbalance_r = (i_max - i_min - CONFIG_PHASE_UNBALANCE_THROLD)/(i_max + 1e-8f);
  190. if (unbalance_r >= CONFIG_PHASE_UNBALANCE_R) {
  191. if ((_unbalance_cnt++ >= 500) || (get_delta_ms(_unbalance_time) >= 1000*10)) {
  192. if (mc_set_critical_error(FOC_CRIT_PHASE_UNBalance_Err)) {
  193. mc_crit_err_add(FOC_CRIT_PHASE_UNBalance_Err, (s16)i_max, (s16)i_min);
  194. }
  195. }
  196. }else {
  197. _unbalance_cnt = 0;
  198. _unbalance_time = get_tick_ms();
  199. }
  200. a_max = b_max = c_max = 0;
  201. }
  202. }
  203. bool mot_contrl_update(mot_contrl_t *ctrl) {
  204. foc_t *foc = &ctrl->foc;
  205. phase_current_get(foc->in.curr_abc);
  206. clark(foc->in.curr_abc[0], foc->in.curr_abc[1], foc->in.curr_abc[2], &foc->in.curr_ab);
  207. 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);
  208. float enc_angle = motor_encoder_get_angle();
  209. float enc_vel = motor_encoder_get_speed();
  210. if (!foc_observer_diagnostic(enc_angle, enc_vel)){
  211. /* detect encoder angle error, do something here */
  212. if (!foc_observer_sensorless_stable()) {
  213. foc->in.mot_velocity = 0;
  214. return false;
  215. }
  216. enc_angle = foc_observer_sensorless_angle();
  217. enc_vel = foc_observer_sensorless_speed();
  218. }
  219. if (!ctrl->b_mtpa_calibrate && (ctrl->force_angle != INVALID_ANGLE)) {
  220. foc->in.mot_angle = ctrl->force_angle;
  221. }else {
  222. foc->in.mot_angle = enc_angle;
  223. }
  224. foc->in.mot_velocity = enc_vel;
  225. foc->in.dc_vol = get_vbus_float();
  226. foc->in.b_openloop = ctrl->mode_running == CTRL_MODE_OPEN;
  227. phase_curr_unbal_check(ctrl);
  228. if (foc->in.b_openloop) {
  229. foc->in.target_vol_dq.d = line_ramp_get_interp(&ctrl->target_vd);
  230. foc->in.target_vol_dq.q = line_ramp_get_interp(&ctrl->target_vq);
  231. }
  232. foc_update(foc);
  233. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US * 2;
  234. if (lowpass > 1) {
  235. lowpass = 1;
  236. }
  237. LowPass_Filter(ctrl->out_idq_filterd.d, foc->out.curr_dq.d ,lowpass);
  238. LowPass_Filter(ctrl->out_idq_filterd.q, foc->out.curr_dq.q ,lowpass);
  239. return true;
  240. }
  241. static __INLINE float mot_contrl_dc_curr_limiter(mot_contrl_t *ctrl, float maxTrq) {
  242. ctrl->pi_power.max = maxTrq;
  243. float errRef = line_ramp_get_interp(&ctrl->dc_curr_lim) - ctrl->dc_curr_filted;
  244. return PI_Controller_Run(&ctrl->pi_power, errRef);
  245. }
  246. static __INLINE float mot_contrl_vel_limiter(mot_contrl_t *ctrl, float maxTrq) {
  247. ctrl->pi_vel_lim.max = maxTrq;
  248. ctrl->pi_vel_lim.min = 0;
  249. float err = line_ramp_get_interp(&ctrl->vel_lim) - ctrl->foc.in.mot_velocity;
  250. return PI_Controller_RunVel(&ctrl->pi_vel_lim, err);
  251. }
  252. /* current vector or torque to dq axis current */
  253. static void mot_contrl_dq_assign(mot_contrl_t *ctrl) {
  254. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  255. float target_current = line_ramp_get_interp(&ctrl->target_current);
  256. if (ctrl->b_mtpa_calibrate && (ctrl->adv_angle != INVALID_ANGLE)) {
  257. float s, c;
  258. normal_sincosf(degree_2_pi(ctrl->adv_angle + 90.0f), &s, &c);
  259. ctrl->target_idq.d = target_current * c;
  260. if (ctrl->target_idq.d > ctrl->hwlim.fw_id) {
  261. ctrl->target_idq.d = ctrl->hwlim.fw_id;
  262. }else if (ctrl->target_idq.d < -ctrl->hwlim.fw_id) {
  263. ctrl->target_idq.d = -ctrl->hwlim.fw_id;
  264. }
  265. ctrl->target_idq.q = sqrtf(SQ(target_current) - SQ(ctrl->target_idq.d));
  266. if (s < 0) {
  267. ctrl->target_idq.q = -ctrl->target_idq.q;
  268. }
  269. }else {
  270. ctrl->target_idq.d = 0;
  271. ctrl->target_idq.q = target_current;
  272. }
  273. }else if (ctrl->mode_running != CTRL_MODE_OPEN) {
  274. motor_mpta_fw_lookup(ctrl->foc.in.mot_velocity, ctrl->target_torque, &ctrl->target_idq);
  275. }
  276. u32 mask = cpu_enter_critical();
  277. ctrl->foc.in.target_curr_dq.d = ctrl->target_idq.d;
  278. ctrl->foc.in.target_curr_dq.q = ctrl->target_idq.q;
  279. cpu_exit_critical(mask);
  280. }
  281. static void crosszero_step_towards(float *value, float target) {
  282. static float no_cro_step = CONFIG_CrossZero_NorStep;
  283. float v_now = *value;
  284. bool cross_zero = false;
  285. float nor_step = mc_conf()->cz.normal_step;
  286. float min_step = mc_conf()->cz.min_step;
  287. float min_ramp_torque = mc_conf()->cz.low;
  288. float high_ramp_torque = mc_conf()->cz.high;
  289. if (target > 0) {
  290. if (v_now < -min_ramp_torque) {
  291. step_towards(value, -min_ramp_torque + 0.001f, nor_step);
  292. cross_zero = true;
  293. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  294. step_towards(value, target, min_step);
  295. cross_zero = true;
  296. }
  297. }else if (target == 0) {
  298. if (v_now > high_ramp_torque) {
  299. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  300. cross_zero = true;
  301. }else if (v_now >= min_ramp_torque && v_now <= high_ramp_torque) {
  302. step_towards(value, target, min_step);
  303. cross_zero = true;
  304. }
  305. }else {
  306. if (v_now > high_ramp_torque) {
  307. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  308. cross_zero = true;
  309. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  310. step_towards(value, target, min_step);
  311. cross_zero = true;
  312. }
  313. }
  314. if (!cross_zero) {
  315. step_towards(&no_cro_step, nor_step, 0.1f);
  316. step_towards(value, target, no_cro_step);
  317. }else {
  318. no_cro_step = 0.5f;
  319. }
  320. }
  321. /*called in media task */
  322. void mot_contrl_dq_calc(mot_contrl_t *ctrl) {
  323. foc_t *foc = &ctrl->foc;
  324. float etcs_out = etcs_process(&ctrl->etcs);
  325. if (ctrl->b_AutoHold) {
  326. float hold_torque = min(ctrl->protlim.torque, mc_conf()->c.max_autohold_torque);
  327. ctrl->pi_lock.max = hold_torque;
  328. ctrl->pi_lock.min = -hold_torque;
  329. float vel_count = motor_encoder_get_vel_count();
  330. float errRef = 0 - vel_count;
  331. ctrl->target_torque = PI_Controller_Run(&ctrl->pi_lock ,errRef);
  332. mot_contrl_dq_assign(ctrl);
  333. return;
  334. }
  335. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  336. line_ramp_step(&ctrl->target_current);
  337. }else if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  338. float maxTrq = line_ramp_step(&ctrl->input_torque);
  339. if (line_ramp_get_target(&ctrl->input_torque) < 0.0001f && foc->in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE) {
  340. maxTrq = 0;
  341. }
  342. crosszero_step_towards(&ctrl->target_torque, maxTrq);
  343. }else if (ctrl->mode_running == CTRL_MODE_TRQ) {
  344. float refTorque = line_ramp_step(&ctrl->input_torque);
  345. refTorque = min(refTorque, line_ramp_get_interp(&ctrl->torque_lim)) * etcs_out;
  346. float maxTrq = mot_contrl_vel_limiter(ctrl, refTorque);
  347. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  348. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  349. }else if (ctrl->mode_running == CTRL_MODE_SPD){
  350. float refSpeed;
  351. float maxSpeed;
  352. if (ctrl->b_cruiseEna) {
  353. refSpeed = line_ramp_step(&ctrl->cruise_vel);
  354. maxSpeed = line_ramp_get_target(&ctrl->cruise_vel);
  355. }else {
  356. refSpeed = line_ramp_step(&ctrl->target_vel);
  357. maxSpeed = line_ramp_get_target(&ctrl->target_vel);
  358. }
  359. float max_input = line_ramp_get_interp(&ctrl->torque_lim) * etcs_out;
  360. if (maxSpeed >= 0) {
  361. ctrl->pi_vel.max = max_input;
  362. #ifdef CONFIG_SERVO_MOTOR
  363. ctrl->pi_vel.min = -max_input;
  364. #else
  365. ctrl->pi_vel.min = -CONFIG_MAX_NEG_TORQUE;
  366. #endif
  367. }else if (maxSpeed < 0) {
  368. ctrl->pi_vel.min = -max_input;
  369. #ifdef CONFIG_SERVO_MOTOR
  370. ctrl->pi_vel.max = max_input;
  371. #else
  372. ctrl->pi_vel.max = CONFIG_MAX_NEG_TORQUE;
  373. #endif
  374. }
  375. if ((maxSpeed == 0) && (ctrl->foc.in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE)) {
  376. ctrl->pi_vel.max = 0;
  377. ctrl->pi_vel.min = 0; //防止倒转
  378. }
  379. float errRef = refSpeed - ctrl->foc.in.mot_velocity;
  380. float maxTrq = PI_Controller_RunVel(&ctrl->pi_vel, errRef);
  381. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  382. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  383. }
  384. mot_contrl_dq_assign(ctrl);
  385. }
  386. static void mot_contrl_pid(mot_contrl_t *ctrl) {
  387. float slow_ctrl_ts = (1.0f/(float)CONFIG_SPD_CTRL_TS);
  388. PI_Controller_Reset(&ctrl->pi_power, 0);
  389. ctrl->pi_power.kp = mc_conf()->c.pid[PID_IDCLim_ID].kp;
  390. ctrl->pi_power.ki = mc_conf()->c.pid[PID_IDCLim_ID].ki;
  391. ctrl->pi_power.kd = mc_conf()->c.pid[PID_IDCLim_ID].kd;
  392. ctrl->pi_power.DT = slow_ctrl_ts;
  393. PI_Controller_Reset(&ctrl->pi_lock, 0);
  394. ctrl->pi_lock.kp = mc_conf()->c.pid[PID_AutoHold_ID].kp;
  395. ctrl->pi_lock.ki = mc_conf()->c.pid[PID_AutoHold_ID].ki;
  396. ctrl->pi_lock.kd = mc_conf()->c.pid[PID_AutoHold_ID].kd;
  397. ctrl->pi_lock.DT = slow_ctrl_ts;
  398. PI_Controller_Reset(&ctrl->pi_vel_lim, 0);
  399. ctrl->pi_vel_lim.kp = mc_conf()->c.pid[PID_VelLim_ID].kp;
  400. ctrl->pi_vel_lim.ki = mc_conf()->c.pid[PID_VelLim_ID].ki;
  401. ctrl->pi_vel_lim.kd = mc_conf()->c.pid[PID_VelLim_ID].kd;
  402. ctrl->pi_vel_lim.DT = slow_ctrl_ts;
  403. PI_Controller_Reset(&ctrl->pi_vel, 0);
  404. ctrl->pi_vel.kp = mc_conf()->c.pid[PID_Vel_ID].kp;
  405. ctrl->pi_vel.ki = mc_conf()->c.pid[PID_Vel_ID].ki;
  406. ctrl->pi_vel.kd = mc_conf()->c.pid[PID_Vel_ID].kd;
  407. ctrl->pi_vel.DT = slow_ctrl_ts;
  408. }
  409. static void mot_contrl_ulimit(mot_contrl_t *ctrl) {
  410. ctrl->userlim.dc_curr = min(mc_conf()->c.max_idc, ctrl->hwlim.dc_curr);
  411. ctrl->userlim.mot_vel = min(mc_conf()->c.max_rpm, ctrl->hwlim.mot_vel);
  412. ctrl->userlim.torque = mc_conf()->c.max_torque;//MAX_TORQUE;
  413. ctrl->userlim.phase_curr = min(mc_conf()->c.max_phase_curr, ctrl->hwlim.phase_curr);
  414. ctrl->userlim.dc_vol_min = mc_conf()->c.max_dc_vol;
  415. ctrl->userlim.dc_vol_max = mc_conf()->c.min_dc_vol;
  416. ctrl->userlim.ebrk_dc_curr = 0xFF;
  417. ctrl->userlim.ebrk_torque = mc_conf()->c.max_ebrk_torque;
  418. }
  419. static void mot_contrl_rtlimit(mot_contrl_t *ctrl) {
  420. line_ramp_reset(&ctrl->torque_lim, ctrl->userlim.torque);
  421. line_ramp_reset(&ctrl->dc_curr_lim, ctrl->userlim.dc_curr);
  422. line_ramp_reset(&ctrl->vel_lim, ctrl->userlim.mot_vel);
  423. }
  424. void mot_contrl_slow_task(mot_contrl_t *ctrl) {
  425. line_ramp_step(&ctrl->torque_lim);
  426. line_ramp_step(&ctrl->dc_curr_lim);
  427. line_ramp_step(&ctrl->vel_lim);
  428. mot_contrl_dq_calc(ctrl);
  429. }
  430. u8 mot_contrl_protect(mot_contrl_t *ctrl) {
  431. u8 changed = FOC_LIM_NO_CHANGE;
  432. float dc_lim = (float)vbus_under_vol_limit();
  433. float torque_lim = (float)min(mos_temp_high_limit(), motor_temp_high_limit());
  434. if (ctrl->protlim.dc_curr != dc_lim || ctrl->protlim.torque != torque_lim) {
  435. if ((dc_lim > ctrl->protlim.dc_curr) || (torque_lim > ctrl->protlim.torque)) {
  436. changed = FOC_LIM_CHANGE_H;
  437. }else {
  438. changed = FOC_LIM_CHANGE_L;
  439. }
  440. ctrl->protlim.dc_curr = dc_lim;
  441. ctrl->protlim.torque = torque_lim;
  442. }
  443. return changed;
  444. }
  445. float mot_contrl_get_speed(mot_contrl_t *ctrl) {
  446. float speed = ctrl->foc.in.mot_velocity;
  447. if (!ctrl->b_start || foc_observer_is_encoder()) {
  448. speed = motor_encoder_get_speed();
  449. }else {
  450. if (foc_observer_sensorless_stable()) {
  451. speed = foc_observer_sensorless_speed();
  452. }else {
  453. speed = 0;
  454. }
  455. }
  456. return speed;
  457. }
  458. void mot_contrl_velloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  459. #ifdef CONFIG_SPEED_LADRC
  460. ladrc_change_b0(&gFoc_Ctrl.vel_adrc, b0);
  461. ladrc_change_K(&gFoc_Ctrl.vel_adrc, wcv);
  462. #else
  463. PI_Controller_Change_Kpi(&ctrl->pi_vel, wcv, b0);
  464. #endif
  465. }
  466. void mot_contrl_trqloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  467. #ifdef CONFIG_SPEED_LADRC
  468. ladrc_change_b0(&gFoc_Ctrl.vel_lim_adrc, b0);
  469. ladrc_change_K(&gFoc_Ctrl.vel_lim_adrc, wcv);
  470. #else
  471. PI_Controller_Change_Kpi(&ctrl->pi_vel_lim, wcv, b0);
  472. #endif
  473. }
  474. void mot_contrl_set_dccurr_limit(mot_contrl_t *ctrl, float ibusLimit) {
  475. if (ibusLimit > ctrl->hwlim.dc_curr) {
  476. ibusLimit = ctrl->hwlim.dc_curr;
  477. }
  478. if (ctrl->protlim.dc_curr != HW_LIMIT_NONE) {
  479. ibusLimit = min(ibusLimit, ctrl->protlim.dc_curr);
  480. }
  481. ctrl->userlim.dc_curr = ibusLimit;
  482. if (ABS(ctrl->dc_curr_filted) <= ibusLimit){
  483. line_ramp_reset(&ctrl->dc_curr_lim, ctrl->userlim.dc_curr);
  484. }else {
  485. line_ramp_set_target(&ctrl->dc_curr_lim, ctrl->userlim.dc_curr);
  486. }
  487. }
  488. void mot_contrl_set_vel_limit(mot_contrl_t *ctrl, float vel) {
  489. if (vel > ctrl->hwlim.mot_vel) {
  490. vel = ctrl->hwlim.mot_vel;
  491. }
  492. ctrl->userlim.mot_vel = vel;
  493. if (ABS(ctrl->foc.in.mot_velocity) <= vel) {
  494. line_ramp_reset(&ctrl->vel_lim, ctrl->userlim.mot_vel);
  495. }else {
  496. line_ramp_set_target(&ctrl->vel_lim, ctrl->userlim.mot_vel);
  497. }
  498. }
  499. void mot_contrl_set_torque_limit(mot_contrl_t *ctrl, float torque) {
  500. if (torque > ctrl->hwlim.torque) {
  501. torque = ctrl->hwlim.torque;
  502. }
  503. if (ctrl->protlim.torque != HW_LIMIT_NONE) {
  504. torque = min(torque, ctrl->protlim.torque);
  505. }
  506. ctrl->userlim.torque = torque;
  507. if (ABS(ctrl->target_torque) <= torque){
  508. line_ramp_reset(&ctrl->torque_lim, ctrl->userlim.torque);
  509. }else {
  510. line_ramp_set_target(&ctrl->torque_lim, ctrl->userlim.torque);
  511. }
  512. }
  513. float mot_contrl_get_ebrk_torque(mot_contrl_t *ctrl) {
  514. if (!foc_observer_is_encoder()) {
  515. return 0; //无感运行关闭能量回收
  516. }
  517. return ctrl->userlim.ebrk_torque;
  518. }
  519. void mot_contrl_set_ebrk_time(mot_contrl_t *ctrl, u32 time) {
  520. ctrl->ebrk_ramp_time = time;
  521. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  522. line_ramp_set_time(&ctrl->input_torque, time);
  523. line_ramp_update(&ctrl->input_torque);
  524. }
  525. }
  526. void mot_contrl_set_vdq(mot_contrl_t *ctrl, float vd, float vq) {
  527. line_ramp_set_target(&ctrl->target_vd, vd);
  528. line_ramp_set_target(&ctrl->target_vq, vq);
  529. }
  530. void mot_contrl_set_vdq_immediate(mot_contrl_t *ctrl, float vd, float vq) {
  531. line_ramp_reset(&ctrl->target_vd, vd);
  532. line_ramp_reset(&ctrl->target_vq, vq);
  533. }
  534. bool mot_contrl_set_cruise(mot_contrl_t *ctrl, bool enable) {
  535. if (enable != ctrl->b_cruiseEna) {
  536. float motSpd = mot_contrl_get_speed(ctrl);
  537. if (enable && (motSpd < CONFIG_MIN_CRUISE_RPM)) { //
  538. mot_contrl_set_error(ctrl, FOC_NowAllowed_With_Speed);
  539. return false;
  540. }
  541. line_ramp_reset(&ctrl->cruise_vel, motSpd);
  542. ctrl->b_cruiseEna = enable;
  543. }
  544. return true;
  545. }
  546. bool mot_contrl_resume_cruise(mot_contrl_t *ctrl) {
  547. ctrl->b_cruiseEna = true;
  548. line_ramp_set_time(&ctrl->cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  549. return true;
  550. }
  551. bool mot_contrl_set_cruise_speed(mot_contrl_t *ctrl, float rpm) {
  552. if (ctrl->b_cruiseEna) {
  553. if (rpm < CONFIG_MIN_CRUISE_RPM) {
  554. rpm = CONFIG_MIN_CRUISE_RPM;
  555. }
  556. float vel = min(ABS(rpm),ctrl->userlim.mot_vel)*SIGN(rpm);
  557. line_ramp_set_target(&ctrl->cruise_vel, vel);
  558. return true;
  559. }
  560. mot_contrl_set_error(ctrl, FOC_NotCruiseMode);
  561. return false;
  562. }
  563. bool mot_contrl_set_current(mot_contrl_t *ctrl, float is) {
  564. is = fclamp(is, -ctrl->userlim.phase_curr, ctrl->userlim.phase_curr);
  565. line_ramp_set_target(&ctrl->target_current, is);
  566. return true;
  567. }
  568. void mot_contrl_set_torque_ramp_time(mot_contrl_t *ctrl, u32 acc, u32 dec) {
  569. ctrl->torque_acc_time = acc;
  570. ctrl->torque_dec_time = dec;
  571. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  572. line_ramp_set_acctime(&ctrl->input_torque, acc);
  573. line_ramp_set_dectime(&ctrl->input_torque, dec);
  574. line_ramp_update(&ctrl->input_torque);
  575. }
  576. }
  577. void mot_contrl_set_torque_acc_time(mot_contrl_t *ctrl, u32 acc) {
  578. ctrl->torque_acc_time = acc;
  579. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  580. line_ramp_set_acctime(&ctrl->input_torque, acc);
  581. line_ramp_update(&ctrl->input_torque);
  582. }
  583. }
  584. bool mot_contrl_set_torque(mot_contrl_t *ctrl, float torque) {
  585. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  586. return false;
  587. }
  588. torque = fclamp(torque, -ctrl->userlim.torque, ctrl->userlim.torque);
  589. line_ramp_set_target(&ctrl->input_torque, torque);
  590. return true;
  591. }
  592. void mot_contrl_mtpa_calibrate(mot_contrl_t *ctrl, bool enable) {
  593. if (enable) {
  594. ctrl->b_mtpa_calibrate = true;
  595. ctrl->adv_angle = 0;
  596. }else {
  597. ctrl->adv_angle = INVALID_ANGLE;
  598. ctrl->b_mtpa_calibrate = false;
  599. }
  600. }
  601. void mot_contrl_set_autohold(mot_contrl_t *ctrl, bool lock) {
  602. if (ctrl->b_AutoHold != lock) {
  603. motor_encoder_lock_pos(lock);
  604. PI_Controller_Reset(&ctrl->pi_lock, 0);
  605. if (!lock) {
  606. float hold_torque = ctrl->target_torque * 1.1f;
  607. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  608. PI_Controller_Reset(&ctrl->pi_vel_lim, hold_torque);
  609. }else if (ctrl->mode_running == CTRL_MODE_SPD) {
  610. PI_Controller_Reset(&ctrl->pi_vel, hold_torque);
  611. }
  612. line_ramp_reset(&ctrl->input_torque, hold_torque);
  613. ctrl->autohold_torque = hold_torque;
  614. }else {
  615. ctrl->autohold_torque = 0;
  616. }
  617. ctrl->b_AutoHold = lock;
  618. }
  619. }
  620. static bool is_hw_brake_shutting_power(mot_contrl_t *ctrl) {
  621. return (ctrl->b_hw_braker && mc_hwbrk_can_shutpower());
  622. }
  623. bool mot_contrl_energy_recovery(mot_contrl_t *ctrl, bool start) {
  624. bool enable = ctrl->b_ebrk_running;
  625. if (mot_contrl_get_ebrk_torque(ctrl) == 0) {
  626. enable = false;
  627. }else if (start && ctrl->foc.in.mot_velocity >= CONFIG_MIN_RPM_FOR_EBRAKE){
  628. enable = true;
  629. }else if (!start && !is_hw_brake_shutting_power(ctrl)) {
  630. enable = false;
  631. }
  632. if (enable != ctrl->b_ebrk_running) {
  633. ctrl->b_ebrk_running = enable;
  634. if (enable) {
  635. ctrl->mode_req = CTRL_MODE_EBRAKE;
  636. }else {
  637. ctrl->mode_req = CTRL_MODE_TRQ;
  638. }
  639. }
  640. return enable;
  641. }
  642. void mot_contrl_set_hw_brake(mot_contrl_t *ctrl, bool hw_brake) {
  643. u32 mask = cpu_enter_critical();
  644. if (hw_brake != ctrl->b_hw_braker) {
  645. ctrl->b_hw_braker = hw_brake;
  646. }
  647. if (is_hw_brake_shutting_power(ctrl)) {
  648. if (!ctrl->b_ebrk_running && !mot_contrl_energy_recovery(ctrl, true)) {
  649. line_ramp_reset(&ctrl->input_torque, 0);
  650. }
  651. }
  652. cpu_exit_critical(mask);
  653. }
  654. static PI_Controller *_pid(mot_contrl_t *ctrl, u8 id) {
  655. PI_Controller *pi = NULL;
  656. if (id == PID_ID_ID) {
  657. pi = &ctrl->foc.daxis;
  658. }else if (id == PID_IQ_ID) {
  659. pi = &ctrl->foc.qaxis;
  660. }else if (id == PID_VelLim_ID) {
  661. pi = &ctrl->pi_vel_lim;
  662. }else if (id == PID_Vel_ID) {
  663. pi = &ctrl->pi_vel;
  664. }else if (id == PID_AutoHold_ID) {
  665. pi = &ctrl->pi_lock;
  666. }
  667. return pi;
  668. }
  669. void mot_contrl_set_pid(mot_contrl_t *ctrl, u8 id, float kp, float ki, float kd) {
  670. if (id > PID_Max_ID) {
  671. return;
  672. }
  673. PI_Controller *pi = _pid(ctrl, id);
  674. if (pi != NULL) {
  675. pi->kp = kp;
  676. pi->ki = ki;
  677. pi->kd = kd;
  678. }
  679. }
  680. void mot_contrl_get_pid(mot_contrl_t *ctrl, u8 id, float *kp, float *ki, float *kd) {
  681. if (id > PID_Max_ID) {
  682. return;
  683. }
  684. PI_Controller *pi = _pid(ctrl, id);
  685. if (pi != NULL) {
  686. *kp = pi->kp;
  687. *ki = pi->ki;
  688. *kd = pi->kd;
  689. }
  690. }
  691. void mot_contrl_calc_current(mot_contrl_t *ctrl) {
  692. float vd = ctrl->foc.out.vol_dq.d;
  693. float vq = ctrl->foc.out.vol_dq.q;
  694. float id = ctrl->out_idq_filterd.d;
  695. float iq = ctrl->out_idq_filterd.q;
  696. /*
  697. 根据公式(等幅值变换,功率不等):
  698. iDC x vDC = 3/2(iq x vq + id x vd);
  699. */
  700. float m_pow = (vd * id + vq * iq);
  701. float raw_idc = 0.0f;
  702. float v_dc = get_vbus_float();
  703. if (v_dc != 0.0f) {
  704. raw_idc = m_pow / v_dc;
  705. }
  706. LowPass_Filter(ctrl->dc_curr_calc, raw_idc, 0.02f);
  707. raw_idc = get_vbus_current();
  708. if (raw_idc != NO_VALID_CURRENT) {
  709. LowPass_Filter(ctrl->dc_curr_filted, raw_idc, 0.05f);
  710. }else {
  711. ctrl->dc_curr_filted = ctrl->dc_curr_calc;
  712. }
  713. ctrl->out_current_vec = sqrtf(SQ(id) + SQ(iq));
  714. }