mc_gear_mode_set中对无感模式进行处理，取无感的限制和当前挡位的最小值为控制器限制值

Signed-off-by: kevin <huhui@sharkgulf.com>

Applications/foc/motor/motor.c

@@ -225,15 +225,20 @@ static void _led_off_timer_handler(shark_timer_t *t) {
 
 static void mc_gear_mode_set(void) {
 	gear_t *gears = mc_gear_conf();
-	if (gears != &sensorless_gear) {
-		sensorless_gear.max_torque = gears->max_torque;
-	}else { //slowly changed
+	float max_vel = (float)min(gears->max_speed, motor.u_set.rpm_lim);
+	float max_idc = (float)min(gears->max_idc, motor.u_set.idc_lim);
+	float max_torque = (float)gears->max_torque;
+	if (!foc_observer_is_encoder()) { //无感模式，受限运行
 		line_ramp_set_time(&motor.controller.ramp_vel_lim, CONFIG_SENSORLESS_RAMP_TIME);
 		line_ramp_set_time(&motor.controller.ramp_dc_curr_lim, CONFIG_SENSORLESS_RAMP_TIME);
+		max_vel = min(max_vel, (float)sensorless_gear.max_speed);
+		max_idc = min(max_idc, (float)sensorless_gear.max_idc);
+		max_torque = min(max_torque, (float)sensorless_gear.max_torque);
 	}
-	mot_contrl_set_vel_limit(&motor.controller, (float)min(gears->max_speed, motor.u_set.rpm_lim));
-	mot_contrl_set_dccurr_limit(&motor.controller, (float)min(gears->max_idc, motor.u_set.idc_lim));
-	mot_contrl_set_torque_limit(&motor.controller, (float)gears->max_torque);
+
+	mot_contrl_set_vel_limit(&motor.controller, max_vel);
+	mot_contrl_set_dccurr_limit(&motor.controller, max_idc);
+	mot_contrl_set_torque_limit(&motor.controller, max_torque);
 }
 
 void mc_init(void) {
@@ -262,9 +267,6 @@ motor_t * get_motor(void) {
 
 gear_t *mc_gear_conf_by_gear(u8 n_gear) {
 	gear_t *gears;
-	if (!foc_observer_is_encoder()) { //无感模式，受限运行
-		return &sensorless_gear;
-	}
 	if (motor.b_high_vol_mode) {
 		gears = &mc_conf()->g_n[0];
 	}else {