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; //电池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. foc_init(&ctrl->foc);
  34. }
  35. bool mot_contrl_enable(mot_contrl_t *ctrl, bool start) {
  36. if (ctrl->b_start == start) {
  37. return true;
  38. }
  39. if (start) {
  40. line_ramp_init(&ctrl->torque_lim, CONFIG_LIMIT_RAMP_TIME);
  41. line_ramp_init(&ctrl->dc_curr_lim, CONFIG_LIMIT_RAMP_TIME);
  42. line_ramp_init(&ctrl->vel_lim, CONFIG_LIMIT_RAMP_TIME);
  43. line_ramp_init(&ctrl->cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  44. line_ramp_init(&ctrl->target_vd, CONFIG_FOC_VDQ_RAMP_FINAL_TIME);
  45. line_ramp_init(&ctrl->target_vq, CONFIG_FOC_VDQ_RAMP_FINAL_TIME);
  46. line_ramp_init(&ctrl->target_vel, CONFIG_CRUISE_RAMP_TIME);
  47. line_ramp_init(&ctrl->target_current, CONFIG_CURRENT_RAMP_TIME);
  48. line_ramp_init(&ctrl->input_torque, CONFIG_DEFAULT_TORQUE_RAMP_TIME);
  49. mot_contrl_pid(ctrl);
  50. mot_contrl_ulimit(ctrl);
  51. mot_contrl_rtlimit(ctrl);
  52. etcs_init(&ctrl->etcs);
  53. }
  54. ctrl->b_ebrk_running = false;
  55. ctrl->b_AutoHold = false;
  56. ctrl->b_cruiseEna = false;
  57. ctrl->b_mtpa_calibrate = false;
  58. ctrl->b_hw_braker = false;
  59. ctrl->mode_req = CTRL_MODE_OPEN;
  60. ctrl->mode_running = CTRL_MODE_OPEN;
  61. ctrl->force_angle = INVALID_ANGLE;
  62. ctrl->adv_angle = INVALID_ANGLE;
  63. ctrl->angle_last = INVALID_ANGLE;
  64. ctrl->dc_curr_filted = 0;
  65. ctrl->dc_curr_calc = 0;
  66. ctrl->phase_curr_filted[0] = ctrl->phase_curr_filted[1] = 0;
  67. ctrl->out_idq_filterd.d = ctrl->out_idq_filterd.q = 0;
  68. ctrl->autohold_torque = 0;
  69. ctrl->out_current_vec = 0;
  70. ctrl->target_idq.d = 0;
  71. ctrl->target_idq.q = 0;
  72. ctrl->target_torque = 0;
  73. ctrl->target_torque_raw = 0;
  74. foc_init(&ctrl->foc);
  75. foc_observer_init();
  76. ctrl->b_start = start;
  77. return true;
  78. }
  79. bool mot_contrl_request_mode(mot_contrl_t *ctrl, u8 mode) {
  80. if (mode > CTRL_MODE_EBRAKE) {
  81. mot_contrl_set_error(ctrl, FOC_Param_Err);
  82. return false;
  83. }
  84. ctrl->mode_req = mode;
  85. return true;
  86. }
  87. u8 mot_contrl_mode(mot_contrl_t *ctrl) {
  88. u8 preMode = ctrl->mode_running;
  89. if (!ctrl->b_start) {
  90. ctrl->mode_running = CTRL_MODE_OPEN;
  91. }else if (ctrl->mode_req == CTRL_MODE_OPEN) {
  92. ctrl->mode_running = CTRL_MODE_OPEN;
  93. }else if (ctrl->mode_req == CTRL_MODE_SPD || ctrl->b_cruiseEna){
  94. ctrl->mode_running = CTRL_MODE_SPD;
  95. }else if (ctrl->mode_req == CTRL_MODE_CURRENT) {
  96. ctrl->mode_running = CTRL_MODE_CURRENT;
  97. }else if (ctrl->mode_req == CTRL_MODE_EBRAKE) {
  98. ctrl->mode_running = CTRL_MODE_EBRAKE;
  99. }else {
  100. if (!ctrl->b_cruiseEna) {
  101. ctrl->mode_running = CTRL_MODE_TRQ;
  102. }
  103. }
  104. if (preMode != ctrl->mode_running) {
  105. if ((preMode != ctrl->mode_running) && (ctrl->mode_running == CTRL_MODE_TRQ)) {
  106. line_ramp_set_acctime(&ctrl->input_torque, ctrl->torque_acc_time);
  107. line_ramp_set_dectime(&ctrl->input_torque, ctrl->torque_dec_time);
  108. line_ramp_update(&ctrl->input_torque);
  109. if (preMode == CTRL_MODE_SPD) {
  110. ctrl->target_torque_raw = ctrl->target_torque;
  111. PI_Controller_Reset(&ctrl->pi_vel_lim, ctrl->target_torque_raw);
  112. }else if (preMode == CTRL_MODE_CURRENT) {
  113. ctrl->target_torque_raw = line_ramp_get_interp(&ctrl->target_current);
  114. PI_Controller_Reset(&ctrl->pi_vel_lim, ctrl->target_torque_raw);
  115. }
  116. }else if ((preMode == CTRL_MODE_TRQ) && (ctrl->mode_running == CTRL_MODE_SPD)) {
  117. PI_Controller_Reset(&ctrl->pi_vel, ctrl->target_torque);
  118. }else if ((preMode != ctrl->mode_running) && (ctrl->mode_running == CTRL_MODE_EBRAKE)) {
  119. line_ramp_reset(&ctrl->input_torque, ctrl->target_torque);
  120. line_ramp_set_time(&ctrl->input_torque, ctrl->ebrk_ramp_time);
  121. line_ramp_set_target(&ctrl->input_torque, motor_get_ebreak_toruqe(ctrl->foc.in.mot_velocity));
  122. }else if ((preMode == CTRL_MODE_EBRAKE) && (ctrl->mode_running == CTRL_MODE_SPD)) {
  123. PI_Controller_Reset(&ctrl->pi_vel, F_get_air());
  124. }
  125. }
  126. if (ctrl->mode_running == CTRL_MODE_OPEN) {
  127. line_ramp_step(&ctrl->target_vd);
  128. line_ramp_step(&ctrl->target_vq);
  129. }
  130. return ctrl->mode_running;
  131. }
  132. static __INLINE void phase_curr_unbal_check(mot_contrl_t *ctrl) {
  133. static u32 _cycle_cnt = 0, _last_mod_cnt = 0;
  134. static float a_max = 0, b_max = 0, c_max = 0;
  135. static u32 _unbalance_cnt = 0;
  136. static u32 _unbalance_time = 0;
  137. foc_t *foc = &ctrl->foc;
  138. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US / 2.0f;
  139. if (lowpass > 1.0f) {
  140. lowpass = 1.0f;
  141. }
  142. LowPass_Filter(ctrl->phase_curr_filted[0], foc->in.curr_abc[0], lowpass);
  143. LowPass_Filter(ctrl->phase_curr_filted[1], foc->in.curr_abc[1], lowpass);
  144. ctrl->phase_curr_filted[2] = -(ctrl->phase_curr_filted[0] + ctrl->phase_curr_filted[1]);
  145. if ((ctrl->angle_last == INVALID_ANGLE) || (foc->mot_vel_radusPers < 100) || ctrl->out_current_vec < 50) {
  146. ctrl->angle_last = foc->in.mot_angle;
  147. a_max = b_max = c_max = 0;
  148. _unbalance_cnt = 0;
  149. _unbalance_time = get_tick_ms();
  150. _cycle_cnt = 0;
  151. _last_mod_cnt = 0;
  152. return;
  153. }
  154. float delta_angle = foc->in.mot_angle - ctrl->angle_last;
  155. if (delta_angle > 200 || delta_angle < -200) { //one cycle
  156. _cycle_cnt ++;
  157. }
  158. ctrl->angle_last = foc->in.mot_angle;
  159. u32 mod_cnt = _cycle_cnt % CONFIG_PHASE_UNBALANCE_PEAK_CNT;
  160. bool trigger = false;
  161. if ((mod_cnt == 0) && (_last_mod_cnt != mod_cnt)) {
  162. trigger = true;
  163. }
  164. _last_mod_cnt = mod_cnt;
  165. a_max = MAX(a_max, ctrl->phase_curr_filted[0] * (2.2f));
  166. b_max = MAX(b_max, ctrl->phase_curr_filted[1] * (2.2f));
  167. c_max = MAX(c_max, ctrl->phase_curr_filted[2] * (2.2f));
  168. if (trigger) { //经过CONFIG_PEAK_CNT个周期,已经得到peak值
  169. float i_min = 1000.0f, i_max = 0;
  170. if (a_max > i_max) {
  171. i_max = a_max;
  172. }
  173. if (a_max < i_min) {
  174. i_min = a_max;
  175. }
  176. if (b_max > i_max) {
  177. i_max = b_max;
  178. }
  179. if (b_max < i_min) {
  180. i_min = b_max;
  181. }
  182. if (c_max > i_max) {
  183. i_max = c_max;
  184. }
  185. if (c_max < i_min) {
  186. i_min = c_max;
  187. }
  188. float unbalance_r = (i_max - i_min - CONFIG_PHASE_UNBALANCE_THROLD)/(i_max + 1e-8f);
  189. if (unbalance_r >= CONFIG_PHASE_UNBALANCE_R) {
  190. if ((_unbalance_cnt++ >= 500) || (get_delta_ms(_unbalance_time) >= 1000*10)) {
  191. if (mc_set_critical_error(FOC_CRIT_PHASE_UNBalance_Err)) {
  192. mc_crit_err_add(FOC_CRIT_PHASE_UNBalance_Err, (s16)i_max, (s16)i_min);
  193. }
  194. }
  195. }else {
  196. _unbalance_cnt = 0;
  197. _unbalance_time = get_tick_ms();
  198. }
  199. a_max = b_max = c_max = 0;
  200. }
  201. }
  202. bool mot_contrl_update(mot_contrl_t *ctrl) {
  203. foc_t *foc = &ctrl->foc;
  204. phase_current_get(foc->in.curr_abc);
  205. clark(foc->in.curr_abc[0], foc->in.curr_abc[1], foc->in.curr_abc[2], &foc->in.curr_ab);
  206. 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);
  207. float enc_angle = motor_encoder_get_angle();
  208. float enc_vel = motor_encoder_get_speed();
  209. if (!foc_observer_diagnostic(enc_angle, enc_vel)){
  210. /* detect encoder angle error, do something here */
  211. if (!foc_observer_sensorless_stable()) {
  212. foc->in.mot_velocity = 0;
  213. return false;
  214. }
  215. enc_angle = foc_observer_sensorless_angle();
  216. enc_vel = foc_observer_sensorless_speed();
  217. }
  218. if (!ctrl->b_mtpa_calibrate && (ctrl->force_angle != INVALID_ANGLE)) {
  219. foc->in.mot_angle = ctrl->force_angle;
  220. }else {
  221. foc->in.mot_angle = enc_angle;
  222. }
  223. #ifdef CONFIG_DQ_STEP_RESPONSE
  224. foc->in.mot_angle = 0;
  225. #endif
  226. foc->in.mot_velocity = enc_vel;
  227. foc->in.dc_vol = get_vbus_float();
  228. foc->in.b_openloop = ctrl->mode_running == CTRL_MODE_OPEN;
  229. phase_curr_unbal_check(ctrl);
  230. if (foc->in.b_openloop) {
  231. foc->in.target_vol_dq.d = line_ramp_get_interp(&ctrl->target_vd);
  232. foc->in.target_vol_dq.q = line_ramp_get_interp(&ctrl->target_vq);
  233. }
  234. foc_update(foc);
  235. float lowpass = foc->mot_vel_radusPers * FOC_CTRL_US * 2;
  236. lowpass = fclamp(lowpass, 0.001f, 1.0f);
  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. arm_sin_cos(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. foc_set_target_idq(&ctrl->foc, &ctrl->target_idq);
  278. cpu_exit_critical(mask);
  279. }
  280. static void crosszero_step_towards(float *value, float target) {
  281. static float no_cro_step = CONFIG_CrossZero_NorStep;
  282. float v_now = *value;
  283. bool cross_zero = false;
  284. float nor_step = mc_conf()->cz.normal_step;
  285. float min_step = mc_conf()->cz.min_step;
  286. float min_ramp_torque = mc_conf()->cz.low;
  287. float high_ramp_torque = mc_conf()->cz.high;
  288. if (target > 0) {
  289. if (v_now < -min_ramp_torque) {
  290. step_towards(value, -min_ramp_torque + 0.001f, nor_step);
  291. cross_zero = true;
  292. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  293. step_towards(value, target, min_step);
  294. cross_zero = true;
  295. }
  296. }else if (target == 0) {
  297. if (v_now > high_ramp_torque) {
  298. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  299. cross_zero = true;
  300. }else if (v_now >= min_ramp_torque && v_now <= high_ramp_torque) {
  301. step_towards(value, target, min_step);
  302. cross_zero = true;
  303. }
  304. }else {
  305. if (v_now > high_ramp_torque) {
  306. step_towards(value, high_ramp_torque - 0.001f, nor_step);
  307. cross_zero = true;
  308. }else if (v_now >= -min_ramp_torque && v_now <= high_ramp_torque) {
  309. step_towards(value, target, min_step);
  310. cross_zero = true;
  311. }
  312. }
  313. if (!cross_zero) {
  314. step_towards(&no_cro_step, nor_step, 0.1f);
  315. step_towards(value, target, no_cro_step);
  316. }else {
  317. no_cro_step = 0.5f;
  318. }
  319. }
  320. /*called in media task */
  321. void mot_contrl_dq_calc(mot_contrl_t *ctrl) {
  322. foc_t *foc = &ctrl->foc;
  323. float etcs_out = etcs_process(&ctrl->etcs);
  324. if (ctrl->b_AutoHold) {
  325. float hold_torque = min(ctrl->protlim.torque, mc_conf()->c.max_autohold_torque);
  326. ctrl->pi_lock.max = hold_torque;
  327. ctrl->pi_lock.min = -hold_torque;
  328. float vel_count = motor_encoder_get_vel_count();
  329. float errRef = 0 - vel_count;
  330. ctrl->target_torque = PI_Controller_Run(&ctrl->pi_lock ,errRef);
  331. mot_contrl_dq_assign(ctrl);
  332. return;
  333. }
  334. if (ctrl->mode_running == CTRL_MODE_CURRENT) {
  335. line_ramp_step(&ctrl->target_current);
  336. }else if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  337. float maxTrq = line_ramp_step(&ctrl->input_torque);
  338. if (line_ramp_get_target(&ctrl->input_torque) < 0.0001f && foc->in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE) {
  339. maxTrq = 0;
  340. }
  341. crosszero_step_towards(&ctrl->target_torque, maxTrq);
  342. }else if (ctrl->mode_running == CTRL_MODE_TRQ) {
  343. float refTorque = line_ramp_step(&ctrl->input_torque);
  344. refTorque = min(refTorque, line_ramp_get_interp(&ctrl->torque_lim)) * etcs_out;
  345. float maxTrq = mot_contrl_vel_limiter(ctrl, refTorque);
  346. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  347. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  348. }else if (ctrl->mode_running == CTRL_MODE_SPD){
  349. float refSpeed;
  350. float maxSpeed;
  351. if (ctrl->b_cruiseEna) {
  352. refSpeed = line_ramp_step(&ctrl->cruise_vel);
  353. maxSpeed = line_ramp_get_target(&ctrl->cruise_vel);
  354. }else {
  355. refSpeed = line_ramp_step(&ctrl->target_vel);
  356. maxSpeed = line_ramp_get_target(&ctrl->target_vel);
  357. }
  358. float max_input = line_ramp_get_interp(&ctrl->torque_lim) * etcs_out;
  359. if (maxSpeed >= 0) {
  360. ctrl->pi_vel.max = max_input;
  361. #ifdef CONFIG_SERVO_MOTOR
  362. ctrl->pi_vel.min = -max_input;
  363. #else
  364. ctrl->pi_vel.min = -CONFIG_MAX_NEG_TORQUE;
  365. #endif
  366. }else if (maxSpeed < 0) {
  367. ctrl->pi_vel.min = -max_input;
  368. #ifdef CONFIG_SERVO_MOTOR
  369. ctrl->pi_vel.max = max_input;
  370. #else
  371. ctrl->pi_vel.max = CONFIG_MAX_NEG_TORQUE;
  372. #endif
  373. }
  374. if ((maxSpeed == 0) && (ctrl->foc.in.mot_velocity < CONFIG_MIN_RPM_EXIT_EBRAKE)) {
  375. ctrl->pi_vel.max = 0;
  376. ctrl->pi_vel.min = 0; //防止倒转
  377. }
  378. float errRef = refSpeed - ctrl->foc.in.mot_velocity;
  379. float maxTrq = PI_Controller_RunVel(&ctrl->pi_vel, errRef);
  380. ctrl->target_torque_raw = mot_contrl_dc_curr_limiter(ctrl, maxTrq);
  381. crosszero_step_towards(&ctrl->target_torque, ctrl->target_torque_raw);
  382. }
  383. mot_contrl_dq_assign(ctrl);
  384. }
  385. static void mot_contrl_pid(mot_contrl_t *ctrl) {
  386. float slow_ctrl_ts = (1.0f/(float)CONFIG_SPD_CTRL_TS);
  387. PI_Controller_Reset(&ctrl->pi_power, 0);
  388. ctrl->pi_power.kp = mc_conf()->c.pid[PID_IDCLim_ID].kp;
  389. ctrl->pi_power.ki = mc_conf()->c.pid[PID_IDCLim_ID].ki;
  390. ctrl->pi_power.kd = mc_conf()->c.pid[PID_IDCLim_ID].kd;
  391. ctrl->pi_power.ts = slow_ctrl_ts;
  392. PI_Controller_Reset(&ctrl->pi_lock, 0);
  393. ctrl->pi_lock.kp = mc_conf()->c.pid[PID_AutoHold_ID].kp;
  394. ctrl->pi_lock.ki = mc_conf()->c.pid[PID_AutoHold_ID].ki;
  395. ctrl->pi_lock.kd = mc_conf()->c.pid[PID_AutoHold_ID].kd;
  396. ctrl->pi_lock.ts = slow_ctrl_ts;
  397. PI_Controller_Reset(&ctrl->pi_vel_lim, 0);
  398. ctrl->pi_vel_lim.kp = mc_conf()->c.pid[PID_VelLim_ID].kp;
  399. ctrl->pi_vel_lim.ki = mc_conf()->c.pid[PID_VelLim_ID].ki;
  400. ctrl->pi_vel_lim.kd = mc_conf()->c.pid[PID_VelLim_ID].kd;
  401. ctrl->pi_vel_lim.ts = slow_ctrl_ts;
  402. PI_Controller_Reset(&ctrl->pi_vel, 0);
  403. ctrl->pi_vel.kp = mc_conf()->c.pid[PID_Vel_ID].kp;
  404. ctrl->pi_vel.ki = mc_conf()->c.pid[PID_Vel_ID].ki;
  405. ctrl->pi_vel.kd = mc_conf()->c.pid[PID_Vel_ID].kd;
  406. ctrl->pi_vel.ts = slow_ctrl_ts;
  407. }
  408. static void mot_contrl_ulimit(mot_contrl_t *ctrl) {
  409. ctrl->userlim.dc_curr = min(mc_conf()->c.max_idc, ctrl->hwlim.dc_curr);
  410. ctrl->userlim.mot_vel = min(mc_conf()->c.max_rpm, ctrl->hwlim.mot_vel);
  411. ctrl->userlim.torque = mc_conf()->c.max_torque;//MAX_TORQUE;
  412. ctrl->userlim.phase_curr = min(mc_conf()->c.max_phase_curr, ctrl->hwlim.phase_curr);
  413. ctrl->userlim.dc_vol_min = mc_conf()->c.max_dc_vol;
  414. ctrl->userlim.dc_vol_max = mc_conf()->c.min_dc_vol;
  415. ctrl->userlim.ebrk_dc_curr = 0xFF;
  416. ctrl->userlim.ebrk_torque = mc_get_ebrk_torque();
  417. }
  418. static void mot_contrl_rtlimit(mot_contrl_t *ctrl) {
  419. line_ramp_reset(&ctrl->torque_lim, ctrl->userlim.torque);
  420. line_ramp_reset(&ctrl->dc_curr_lim, ctrl->userlim.dc_curr);
  421. line_ramp_reset(&ctrl->vel_lim, ctrl->userlim.mot_vel);
  422. }
  423. void mot_contrl_slow_task(mot_contrl_t *ctrl) {
  424. line_ramp_step(&ctrl->torque_lim);
  425. line_ramp_step(&ctrl->dc_curr_lim);
  426. line_ramp_step(&ctrl->vel_lim);
  427. mot_contrl_dq_calc(ctrl);
  428. }
  429. u8 mot_contrl_protect(mot_contrl_t *ctrl) {
  430. u8 changed = FOC_LIM_NO_CHANGE;
  431. float dc_lim = (float)vbus_under_vol_limit();
  432. float torque_lim = (float)min(mos_temp_high_limit(), motor_temp_high_limit());
  433. if (ctrl->protlim.dc_curr != dc_lim || ctrl->protlim.torque != torque_lim) {
  434. if ((dc_lim > ctrl->protlim.dc_curr) || (torque_lim > ctrl->protlim.torque)) {
  435. changed = FOC_LIM_CHANGE_H;
  436. }else {
  437. changed = FOC_LIM_CHANGE_L;
  438. }
  439. ctrl->protlim.dc_curr = dc_lim;
  440. ctrl->protlim.torque = torque_lim;
  441. }
  442. return changed;
  443. }
  444. float mot_contrl_get_speed(mot_contrl_t *ctrl) {
  445. float speed = ctrl->foc.in.mot_velocity;
  446. if (!ctrl->b_start || foc_observer_is_encoder()) {
  447. speed = motor_encoder_get_speed();
  448. }else {
  449. if (foc_observer_sensorless_stable()) {
  450. speed = foc_observer_sensorless_speed();
  451. }else {
  452. speed = 0;
  453. }
  454. }
  455. return speed;
  456. }
  457. void mot_contrl_velloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  458. #ifdef CONFIG_SPEED_LADRC
  459. ladrc_change_b0(&gFoc_Ctrl.vel_adrc, b0);
  460. ladrc_change_K(&gFoc_Ctrl.vel_adrc, wcv);
  461. #else
  462. PI_Controller_Change_Kpi(&ctrl->pi_vel, wcv, b0);
  463. #endif
  464. }
  465. void mot_contrl_trqloop_params(mot_contrl_t *ctrl, float wcv, float b0) {
  466. #ifdef CONFIG_SPEED_LADRC
  467. ladrc_change_b0(&gFoc_Ctrl.vel_lim_adrc, b0);
  468. ladrc_change_K(&gFoc_Ctrl.vel_lim_adrc, wcv);
  469. #else
  470. PI_Controller_Change_Kpi(&ctrl->pi_vel_lim, wcv, b0);
  471. #endif
  472. }
  473. void mot_contrl_set_dccurr_limit(mot_contrl_t *ctrl, float ibusLimit) {
  474. if (ibusLimit > ctrl->hwlim.dc_curr) {
  475. ibusLimit = ctrl->hwlim.dc_curr;
  476. }
  477. if (ctrl->protlim.dc_curr != HW_LIMIT_NONE) {
  478. ibusLimit = min(ibusLimit, ctrl->protlim.dc_curr);
  479. }
  480. ctrl->userlim.dc_curr = ibusLimit;
  481. if (ABS(ctrl->dc_curr_filted) <= ibusLimit){
  482. line_ramp_reset(&ctrl->dc_curr_lim, ctrl->userlim.dc_curr);
  483. }else {
  484. line_ramp_set_target(&ctrl->dc_curr_lim, ctrl->userlim.dc_curr);
  485. }
  486. }
  487. void mot_contrl_set_vel_limit(mot_contrl_t *ctrl, float vel) {
  488. if (vel > ctrl->hwlim.mot_vel) {
  489. vel = ctrl->hwlim.mot_vel;
  490. }
  491. ctrl->userlim.mot_vel = vel;
  492. if (ABS(ctrl->foc.in.mot_velocity) <= vel) {
  493. line_ramp_reset(&ctrl->vel_lim, ctrl->userlim.mot_vel);
  494. }else {
  495. line_ramp_set_target(&ctrl->vel_lim, ctrl->userlim.mot_vel);
  496. }
  497. }
  498. void mot_contrl_set_vel_limit_rttime(mot_contrl_t *ctrl, u32 time) {
  499. line_ramp_set_time(&ctrl->vel_lim, (float)time);
  500. line_ramp_update(&ctrl->vel_lim);
  501. }
  502. void mot_contrl_set_torque_limit(mot_contrl_t *ctrl, float torque) {
  503. if (torque > ctrl->hwlim.torque) {
  504. torque = ctrl->hwlim.torque;
  505. }
  506. if (ctrl->protlim.torque != HW_LIMIT_NONE) {
  507. torque = min(torque, ctrl->protlim.torque);
  508. }
  509. ctrl->userlim.torque = torque;
  510. if (ABS(ctrl->target_torque) <= torque){
  511. line_ramp_reset(&ctrl->torque_lim, ctrl->userlim.torque);
  512. }else {
  513. line_ramp_set_target(&ctrl->torque_lim, ctrl->userlim.torque);
  514. }
  515. }
  516. void mot_contrl_set_torque_limit_rttime(mot_contrl_t *ctrl, u32 time) {
  517. line_ramp_set_time(&ctrl->torque_lim, (float)time);
  518. line_ramp_update(&ctrl->torque_lim);
  519. }
  520. float mot_contrl_get_ebrk_torque(mot_contrl_t *ctrl) {
  521. if (!foc_observer_is_encoder()) {
  522. return 0; //无感运行关闭能量回收
  523. }
  524. return ctrl->userlim.ebrk_torque;
  525. }
  526. void mot_contrl_set_ebrk_time(mot_contrl_t *ctrl, u32 time) {
  527. ctrl->ebrk_ramp_time = time;
  528. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  529. line_ramp_set_time(&ctrl->input_torque, time);
  530. line_ramp_update(&ctrl->input_torque);
  531. }
  532. }
  533. void mot_contrl_set_vdq(mot_contrl_t *ctrl, float vd, float vq) {
  534. line_ramp_set_target(&ctrl->target_vd, vd);
  535. line_ramp_set_target(&ctrl->target_vq, vq);
  536. }
  537. void mot_contrl_set_vdq_immediate(mot_contrl_t *ctrl, float vd, float vq) {
  538. line_ramp_reset(&ctrl->target_vd, vd);
  539. line_ramp_reset(&ctrl->target_vq, vq);
  540. }
  541. bool mot_contrl_set_cruise(mot_contrl_t *ctrl, bool enable) {
  542. if (enable != ctrl->b_cruiseEna) {
  543. float motSpd = mot_contrl_get_speed(ctrl);
  544. if (enable && (motSpd < CONFIG_MIN_CRUISE_RPM)) { //
  545. mot_contrl_set_error(ctrl, FOC_NowAllowed_With_Speed);
  546. return false;
  547. }
  548. line_ramp_reset(&ctrl->cruise_vel, motSpd);
  549. ctrl->b_cruiseEna = enable;
  550. }
  551. return true;
  552. }
  553. bool mot_contrl_resume_cruise(mot_contrl_t *ctrl) {
  554. ctrl->b_cruiseEna = true;
  555. line_ramp_set_time(&ctrl->cruise_vel, CONFIG_CRUISE_RAMP_TIME);
  556. return true;
  557. }
  558. bool mot_contrl_set_cruise_speed(mot_contrl_t *ctrl, float rpm) {
  559. if (ctrl->b_cruiseEna) {
  560. if (rpm < CONFIG_MIN_CRUISE_RPM) {
  561. rpm = CONFIG_MIN_CRUISE_RPM;
  562. }
  563. float vel = min(ABS(rpm),ctrl->userlim.mot_vel)*SIGN(rpm);
  564. line_ramp_set_target(&ctrl->cruise_vel, vel);
  565. return true;
  566. }
  567. mot_contrl_set_error(ctrl, FOC_NotCruiseMode);
  568. return false;
  569. }
  570. bool mot_contrl_set_current(mot_contrl_t *ctrl, float is) {
  571. is = fclamp(is, -ctrl->userlim.phase_curr, ctrl->userlim.phase_curr);
  572. line_ramp_set_target(&ctrl->target_current, is);
  573. return true;
  574. }
  575. void mot_contrl_set_torque_ramp_time(mot_contrl_t *ctrl, u32 acc, u32 dec) {
  576. ctrl->torque_acc_time = acc;
  577. ctrl->torque_dec_time = dec;
  578. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  579. line_ramp_set_acctime(&ctrl->input_torque, acc);
  580. line_ramp_set_dectime(&ctrl->input_torque, dec);
  581. line_ramp_update(&ctrl->input_torque);
  582. }
  583. }
  584. void mot_contrl_set_torque_acc_time(mot_contrl_t *ctrl, u32 acc) {
  585. ctrl->torque_acc_time = acc;
  586. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  587. line_ramp_set_acctime(&ctrl->input_torque, acc);
  588. line_ramp_update(&ctrl->input_torque);
  589. }
  590. }
  591. bool mot_contrl_set_torque(mot_contrl_t *ctrl, float torque) {
  592. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  593. return false;
  594. }
  595. float torque_min = 0;
  596. float torque_max = ctrl->userlim.torque;
  597. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  598. torque_min = -ctrl->userlim.torque;
  599. torque_max = 0;
  600. }
  601. torque = fclamp(torque, torque_min, torque_max);
  602. line_ramp_set_target(&ctrl->input_torque, torque);
  603. return true;
  604. }
  605. /* 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 */
  606. bool mot_contrl_set_force_torque(mot_contrl_t *ctrl, float torque) {
  607. if (is_hw_brake_shutting_power(ctrl) && !ctrl->b_ebrk_running){
  608. return false;
  609. }
  610. float torque_min = -ctrl->userlim.torque;
  611. float torque_max = ctrl->userlim.torque;
  612. if (ctrl->mode_running == CTRL_MODE_EBRAKE) {
  613. torque_min = -ctrl->userlim.torque;
  614. torque_max = 0;
  615. }
  616. torque = fclamp(torque, torque_min, torque_max);
  617. line_ramp_set_target(&ctrl->input_torque, torque);
  618. return true;
  619. }
  620. void mot_contrl_mtpa_calibrate(mot_contrl_t *ctrl, bool enable) {
  621. if (enable) {
  622. ctrl->b_mtpa_calibrate = true;
  623. ctrl->adv_angle = 0;
  624. }else {
  625. ctrl->adv_angle = INVALID_ANGLE;
  626. ctrl->b_mtpa_calibrate = false;
  627. }
  628. }
  629. void mot_contrl_set_autohold(mot_contrl_t *ctrl, bool lock) {
  630. if (ctrl->b_AutoHold != lock) {
  631. motor_encoder_lock_pos(lock);
  632. PI_Controller_Reset(&ctrl->pi_lock, 0);
  633. if (!lock) {
  634. float hold_torque = ctrl->target_torque * 1.1f;
  635. if (ctrl->mode_running == CTRL_MODE_TRQ) {
  636. PI_Controller_Reset(&ctrl->pi_vel_lim, hold_torque);
  637. }else if (ctrl->mode_running == CTRL_MODE_SPD) {
  638. PI_Controller_Reset(&ctrl->pi_vel, hold_torque);
  639. }
  640. line_ramp_reset(&ctrl->input_torque, hold_torque);
  641. ctrl->autohold_torque = hold_torque;
  642. }else {
  643. ctrl->autohold_torque = 0;
  644. }
  645. ctrl->b_AutoHold = lock;
  646. }
  647. }
  648. static bool is_hw_brake_shutting_power(mot_contrl_t *ctrl) {
  649. return (ctrl->b_hw_braker && mc_hwbrk_can_shutpower());
  650. }
  651. bool mot_contrl_energy_recovery(mot_contrl_t *ctrl, bool start) {
  652. bool enable = ctrl->b_ebrk_running;
  653. if (mot_contrl_get_ebrk_torque(ctrl) == 0) {
  654. enable = false;
  655. }else if (start && ctrl->foc.in.mot_velocity >= CONFIG_MIN_RPM_FOR_EBRAKE){
  656. enable = true;
  657. }else if (!start && !is_hw_brake_shutting_power(ctrl)) {
  658. enable = false;
  659. }
  660. if (enable != ctrl->b_ebrk_running) {
  661. ctrl->b_ebrk_running = enable;
  662. if (enable) {
  663. ctrl->mode_req = CTRL_MODE_EBRAKE;
  664. }else {
  665. ctrl->mode_req = CTRL_MODE_TRQ;
  666. }
  667. }
  668. return enable;
  669. }
  670. void mot_contrl_set_hw_brake(mot_contrl_t *ctrl, bool hw_brake) {
  671. u32 mask = cpu_enter_critical();
  672. if (hw_brake != ctrl->b_hw_braker) {
  673. ctrl->b_hw_braker = hw_brake;
  674. }
  675. if (is_hw_brake_shutting_power(ctrl)) {
  676. if (!ctrl->b_ebrk_running && !mot_contrl_energy_recovery(ctrl, true)) {
  677. line_ramp_reset(&ctrl->input_torque, 0);
  678. }
  679. }
  680. cpu_exit_critical(mask);
  681. }
  682. static PI_Controller *_pid(mot_contrl_t *ctrl, u8 id) {
  683. PI_Controller *pi = NULL;
  684. if (id == PID_ID_ID) {
  685. pi = &ctrl->foc.daxis;
  686. }else if (id == PID_IQ_ID) {
  687. pi = &ctrl->foc.qaxis;
  688. }else if (id == PID_VelLim_ID) {
  689. pi = &ctrl->pi_vel_lim;
  690. }else if (id == PID_Vel_ID) {
  691. pi = &ctrl->pi_vel;
  692. }else if (id == PID_AutoHold_ID) {
  693. pi = &ctrl->pi_lock;
  694. }
  695. return pi;
  696. }
  697. void mot_contrl_set_pid(mot_contrl_t *ctrl, u8 id, float kp, float ki, float kd) {
  698. if (id > PID_Max_ID) {
  699. return;
  700. }
  701. PI_Controller *pi = _pid(ctrl, id);
  702. if (pi != NULL) {
  703. pi->kp = kp;
  704. pi->ki = ki;
  705. pi->kd = kd;
  706. }
  707. }
  708. void mot_contrl_get_pid(mot_contrl_t *ctrl, u8 id, float *kp, float *ki, float *kd) {
  709. if (id > PID_Max_ID) {
  710. return;
  711. }
  712. PI_Controller *pi = _pid(ctrl, id);
  713. if (pi != NULL) {
  714. *kp = pi->kp;
  715. *ki = pi->ki;
  716. *kd = pi->kd;
  717. }
  718. }
  719. void mot_contrl_calc_current(mot_contrl_t *ctrl) {
  720. float vd = ctrl->foc.out.vol_dq.d;
  721. float vq = ctrl->foc.out.vol_dq.q;
  722. float id = ctrl->out_idq_filterd.d;
  723. float iq = ctrl->out_idq_filterd.q;
  724. /*
  725. 根据公式(等幅值变换,功率不等):
  726. iDC x vDC = 3/2(iq x vq + id x vd);
  727. */
  728. float m_pow = (vd * id + vq * iq);
  729. float raw_idc = 0.0f;
  730. float v_dc = get_vbus_float();
  731. if (v_dc != 0.0f) {
  732. raw_idc = m_pow / v_dc;
  733. }
  734. LowPass_Filter(ctrl->dc_curr_calc, raw_idc, 0.02f);
  735. raw_idc = get_vbus_current();
  736. if (raw_idc != NO_VALID_CURRENT) {
  737. LowPass_Filter(ctrl->dc_curr_filted, raw_idc, 0.05f);
  738. }else {
  739. ctrl->dc_curr_filted = ctrl->dc_curr_calc;
  740. }
  741. ctrl->out_current_vec = sqrtf(SQ(id) + SQ(iq));
  742. }