351 lines
14 KiB
C
351 lines
14 KiB
C
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/*
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底盘任务
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*/
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/* Includes ----------------------------------------------------------------- */
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#include "chassis.h"
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#include "device/motor_rm.h"
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#include "bsp/time.h"
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#include "bsp/can.h"
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#include "math.h"
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#include "component/pid.h"
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#include "component/filter.h"
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/*舵轮舵向校准方法：注释掉关于6020反馈角度的处理以及6020数据的发送这两处(define.h里有快捷方法)，
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进debug将四个轮子编码器朝右（左右无所谓，可能会导致5065方向反，在解算里加个负号就行）
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查看6020反馈值，将6020反馈值放入motor_offset中*/
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/*chassis_t结构体中的内容现在有 move_vec (最终输出速度)
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hopemotorout(期望的底盘输出值)舵轮解算出的各个电机的期望输出值 包括四个6020 和四个3508
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final_out;(经PID计算后的实际发送给电机的实时输出值) 四个6020 四个3508
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motorfeedback(电机反馈数据) 四个3508 四个6020
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pid 各个电机的pid参数
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ChassisImu_t pos088; 088的实时姿态
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MotorOffset_t motoroffset; //5065校准数据
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const Chassis_Param_t *param; //一些固定的参数
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fp32 vofa_send[8]; //vofa输出数据
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LowPassFilter2p_t filled[9]; //低通滤波器
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float keep_angle[4]; // 保持的 6020 角度
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*/
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/*底盘初始化*/
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int8_t chassis_init(Chassis_t *c, Chassis_Param_t *param, float target_freq)
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{
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if (c == NULL || param == NULL || target_freq <= 0.0f)
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{
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return CHASSIS_ERR; // 参数错误
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}
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c->param = param;
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c->mode = STOP; // 默认模式为停止锁死底盘
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/*初始化can*/
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BSP_CAN_Init();
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/*注册3508电机*/
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for (int i = 0; i < 4; i++)
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{
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MOTOR_RM_Register(&(c->param->motor_3508_param[i]));
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}
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/*注册6020电机*/
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for (int i = 0; i < 4; i++)
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{
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MOTOR_RM_Register(&(c->param->motor_6020_param[i]));
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}
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// 舵轮安装时的6020机械误差，机械校准时1号轮在左前方，所有轮的编码器朝向右面
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MotorOffset_t motor_offset = {{6.28088474/M_PI*180.0f, 2.08161187/M_PI*180.0f, 2.09618473/M_PI*180.0f, 5.25465155/M_PI*180.0f}};
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c->motoroffset = motor_offset;
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/*对3508的速度环和6020的角速度以及位置环pid进行初始化*/
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for (int i = 0; i < 4; i++)
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{
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PID_Init(&c->pid.chassis_3508VPID[i], KPID_MODE_NO_D, target_freq, &c->param->M3508v_param);
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}
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for (int i = 0; i < 4; i++)
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{
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PID_Init(&c->pid.chassis_6020OmegaPid[i], KPID_MODE_NO_D, target_freq, &c->param->C6020Omega_param);
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PID_Init(&c->pid.chassis_6020anglePid[i], KPID_MODE_NO_D, target_freq, &c->param->C6020Angle_param);
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}
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/*对遥控器的xyw进行低通滤波*/
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LowPassFilter2p_Init(&c->filled[0], target_freq, 20.0f); // vx
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LowPassFilter2p_Init(&c->filled[1], target_freq, 20.0f); // vy
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LowPassFilter2p_Init(&c->filled[2], target_freq, 20.0f); // vw
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// c->set_point.yaw = 0.0f;
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return CHASSIS_OK;
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}
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static int8_t Chassis_SetMode(Chassis_t *c, Chassis_CMD_t *c_cmd)
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{
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if (c == NULL)
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return CHASSIS_ERR_NULL; /* 主结构体不能为空 */
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for (int i = 0; i < 4; i++)
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{
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PID_Reset(&c->pid.chassis_3508VPID[i]);
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PID_Reset(&c->pid.chassis_6020OmegaPid[i]);
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PID_Reset(&c->pid.chassis_6020anglePid[i]);
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}
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c->mode = c_cmd->mode;
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return CHASSIS_OK;
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}
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// 底盘解算
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void Chassis_speed_calculate(Chassis_t *c, Chassis_CMD_t *c_cmd)
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{
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// RC模式下松开遥控器防止6020回到默认位置导致侧翻
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if (c->mode == RC && fabs(c->move_vec.Vx) < 100 && fabs(c->move_vec.Vy) < 100 && fabs(c->move_vec.Vw) < 100)
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{
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// 如果之前不处于保持模式，则记录当前角度
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if (!c->keeping_angle_flag)
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{
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c->keeping_angle_flag = 1; // 进入保持模式
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}
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// 使用保持的角度，而不是实时反馈值,速度为0
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for (uint8_t i = 0; i < 4; i++)
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{
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c->hopemotorout.rotor6020_jiesuan_1[i] = c->keep_angle[i];
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c->hopemotorout.rotor3508_jiesuan_1[i] = 0;
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}
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}
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else
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{
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// 如果有速度输入，则退出保持模式
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c->keeping_angle_flag = 0;
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// 让保持角度实时等于进入保持阈值前的最后一次角度值
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for (uint8_t i = 0; i < 4; i++)
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{
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c->keep_angle[i] = c->hopemotorout.rotor6020_jiesuan_1[i];
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}
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switch (c->mode)
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{
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case RC:
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// const double radians = atan(1.0f * 330 / 330);
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c->hopemotorout.rotor3508_jiesuan_1[0] = -sqrt((c->move_vec.Vx + c->move_vec.Vw * sin(radians)) * (c->move_vec.Vx + c->move_vec.Vw * sin(radians))
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+ (c->move_vec.Vy + c->move_vec.Vw * cos(radians)) * (c->move_vec.Vy + c->move_vec.Vw * cos(radians)));
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c->hopemotorout.rotor3508_jiesuan_1[1] = sqrt((c->move_vec.Vx - c->move_vec.Vw * sin(radians)) * (c->move_vec.Vx - c->move_vec.Vw * sin(radians))
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+ (c->move_vec.Vy + c->move_vec.Vw * cos(radians)) * (c->move_vec.Vy + c->move_vec.Vw * cos(radians)));
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c->hopemotorout.rotor3508_jiesuan_1[2] = -sqrt((c->move_vec.Vx + c->move_vec.Vw * sin(radians)) * (c->move_vec.Vx + c->move_vec.Vw * sin(radians))
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+ (c->move_vec.Vy - c->move_vec.Vw * cos(radians)) * (c->move_vec.Vy - c->move_vec.Vw * cos(radians)));
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c->hopemotorout.rotor3508_jiesuan_1[3] = sqrt((c->move_vec.Vx - c->move_vec.Vw * sin(radians)) * (c->move_vec.Vx - c->move_vec.Vw * sin(radians))
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+ (c->move_vec.Vy - c->move_vec.Vw * cos(radians)) * (c->move_vec.Vy - c->move_vec.Vw * cos(radians)));
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c->hopemotorout.rotor6020_jiesuan_1[0] = atan2((c->move_vec.Vy + c->move_vec.Vw * cos(radians)),
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(c->move_vec.Vx + c->move_vec.Vw * sin(radians))) *
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(180.0f / M_PI);
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c->hopemotorout.rotor6020_jiesuan_1[1] = atan2((c->move_vec.Vy + c->move_vec.Vw * cos(radians)),
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(c->move_vec.Vx - c->move_vec.Vw * sin(radians))) *
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(180.0f / M_PI);
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c->hopemotorout.rotor6020_jiesuan_1[2] = atan2((c->move_vec.Vy - c->move_vec.Vw * cos(radians)),
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(c->move_vec.Vx + c->move_vec.Vw * sin(radians))) *
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(180.0f / M_PI);
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c->hopemotorout.rotor6020_jiesuan_1[3] = atan2((c->move_vec.Vy - c->move_vec.Vw * cos(radians)),
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(c->move_vec.Vx - c->move_vec.Vw * sin(radians))) *
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(180.0f / M_PI);
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break;
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case STOP:
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for (int i = 0; i < 4; i++)
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{
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c->hopemotorout.rotor3508_jiesuan_1[i] = 0.0f;
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}
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// c->hopemotorout.rotor6020_jiesuan_1[0] = 6.26554489/M_PI*180.0f;
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// c->hopemotorout.rotor6020_jiesuan_1[1] = 2.1099906/M_PI*180.0f;
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// c->hopemotorout.rotor6020_jiesuan_1[2] = 2.08391285/M_PI*180.0f;
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// c->hopemotorout.rotor6020_jiesuan_1[3] = 5.26845694/M_PI*180.0f;
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c->hopemotorout.rotor6020_jiesuan_1[0] = -45/M_PI*180.0f;
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c->hopemotorout.rotor6020_jiesuan_1[1] = 45/M_PI*180.0f;
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c->hopemotorout.rotor6020_jiesuan_1[2] = -45/M_PI*180.0f;
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c->hopemotorout.rotor6020_jiesuan_1[3] = 45/M_PI*180.0f;
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break;
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case LOCK:
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for (int i = 0; i < 4; i++)
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{
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c->hopemotorout.rotor3508_jiesuan_1[i] = 0.0f;
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}
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c->hopemotorout.rotor6020_jiesuan_1[0] = 315;
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c->hopemotorout.rotor6020_jiesuan_1[1] = 45;
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c->hopemotorout.rotor6020_jiesuan_1[2] = 45;
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c->hopemotorout.rotor6020_jiesuan_1[3] = 315;
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break;
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}
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}
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// 角度归化到0°——360°
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for (uint8_t i = 0; i < 4; i++)
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{
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if (c->hopemotorout.rotor6020_jiesuan_1[i] < 0)
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{
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c->hopemotorout.rotor6020_jiesuan_1[i] += 360;
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}
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}
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float angle_error[4]; // 角度误差
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for (uint8_t i = 0; i < 4; i++)
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{
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angle_error[i] = c->hopemotorout.rotor6020_jiesuan_1[i] - c->motorfeedback.rotor_angle6020[i];
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// 误差角度归化到-180°——+180°
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while (angle_error[i] > 180)
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angle_error[i] -= 360;
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while (angle_error[i] < -180)
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angle_error[i] += 360;
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/*这里发现如果下面的c->motorfeedback.rotor_angle6020[i]+angle_error[i]变为
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c->hopemotorout.rotor6020_jiesuan_1[i]会导致6020出现故障*/
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if (angle_error[i] > 90 && angle_error[i] <= 180)
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{
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c->hopemotorout.rotor3508_jiesuan_2[i] = -c->hopemotorout.rotor3508_jiesuan_1[i];
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c->hopemotorout.rotor6020_jiesuan_2[i] = c->motorfeedback.rotor_angle6020[i] + angle_error[i] - 180;
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}
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else if (angle_error[i] < -90 && angle_error[i] >= -180)
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{
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c->hopemotorout.rotor3508_jiesuan_2[i] = -c->hopemotorout.rotor3508_jiesuan_1[i];
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c->hopemotorout.rotor6020_jiesuan_2[i] = c->motorfeedback.rotor_angle6020[i] + angle_error[i] + 180;
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}
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else
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{
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c->hopemotorout.rotor3508_jiesuan_2[i] = c->hopemotorout.rotor3508_jiesuan_1[i];
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c->hopemotorout.rotor6020_jiesuan_2[i] = c->motorfeedback.rotor_angle6020[i] + angle_error[i];
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}
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}
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}
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int8_t Chassis_update(Chassis_t *c)
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{
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if (c == NULL) {
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return CHASSIS_ERR_NULL; // 参数错误
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}
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/*更新所有电机数据*/
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MOTOR_RM_UpdateAll();
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/*更新电机反馈*/
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for(int i=0;i<4;i++){
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c->motorfeedback.rotor_angle6020[i] = ( MOTOR_GetRotorAbsAngle(&(MOTOR_RM_GetMotor(&c->param->motor_6020_param[i])->motor))/M_PI*180.0f);
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c->motorfeedback.rotor_rpm6020[i] = MOTOR_GetRotorSpeed(&(MOTOR_RM_GetMotor(&c->param->motor_6020_param[i])->motor));
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c->motorfeedback.rotor_rpm3508[i] = MOTOR_GetRotorSpeed(&(MOTOR_RM_GetMotor(&c->param->motor_6020_param[i])->motor));
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// c->motorfeedback.rotor_angle6020[i] = MOTOR_GetRotorAbsAngle(&(MOTOR_RM_GetMotor(&c->param->motor_6020_param[i])->motor));
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c->motorfeedback.rotor_angle6020[i] = fmod(c->motorfeedback.rotor_angle6020[i] - c->motoroffset.MOTOR_OFFSET[i], 360.0);
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}
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return CHASSIS_OK;
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}
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// 防止侧翻
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/*具体开始上车实验之后在进行编写修改，先暂时不使用*/
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void ChassisrolPrevent(Chassis_t *c)
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{
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}
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int8_t Chassis_Control(Chassis_t *c, Chassis_CMD_t *c_cmd)
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{
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float chassis6020_detangle[4]; // 6020解算出的角度
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if (c == NULL || c_cmd == NULL)
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{
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return CHASSIS_ERR_NULL; // 参数错误
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}
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c->dt = (BSP_TIME_Get_us() - c->last_wakeup) / 1000000.0f; /* 计算两次调用的时间间隔，单位秒 */
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c->last_wakeup = BSP_TIME_Get_us();
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/*设置底盘模式*/
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if (Chassis_SetMode(c, c_cmd) != CHASSIS_OK)
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{
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return CHASSIS_ERR_MODE; /* 设置模式失败 */
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}
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/*根据底盘模式进行不同的控制*/
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switch (c->mode)
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{
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case STOP:
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// 停止模式
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c->move_vec.Vx = 0.0f;
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c->move_vec.Vy = 0.0f;
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c->move_vec.Vw = 0.0f;
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break;
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case RC:
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// 遥控模式
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// c->move_vec.Vx = c_cmd->Vx * c_cmd->throttle * 1000.0f;
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// c->move_vec.Vy = c_cmd->Vy * c_cmd->throttle * 1000.0f;
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c->move_vec.Vx = c_cmd->Vx * 1000.0f;
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c->move_vec.Vy = c_cmd->Vy * 1000.0f;
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c->move_vec.Vw = c_cmd->Vw * 1000.0f;
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break;
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default:
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return CHASSIS_ERR_MODE; /* 未知模式 */
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}
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/*给输出的Vx，Vy，Vw进行滤波*/
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c->move_vec.Vx = LowPassFilter2p_Apply(&c->filled[0], c->move_vec.Vx);
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c->move_vec.Vy = LowPassFilter2p_Apply(&c->filled[1], c->move_vec.Vy);
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c->move_vec.Vw = LowPassFilter2p_Apply(&c->filled[2], c->move_vec.Vw);
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Chassis_speed_calculate(c, c_cmd);
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for (int i = 0; i < 4; i++)
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{
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c->hopemotorout.motor6020_target[i] = c->hopemotorout.rotor6020_jiesuan_2[i];
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chassis6020_detangle[i] = PID_Calc(&(c->pid.chassis_6020anglePid[i]), c->hopemotorout.motor6020_target[i],
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c->motorfeedback.rotor_angle6020[i], 0.0f, c->dt);
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c->final_out.final_6020out[i] = chassis6020_detangle[i] ; //单环控制就用这个
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// c->final_out.final_6020out[i] = PID_Calc(&(c->pid.chassis_6020OmegaPid[i]), chassis6020_detangle[i],
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// c->motorfeedback.rotor_rpm6020[i], 0.0f, c->dt);
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c->out.rotor6020_out[i] = c->final_out.final_6020out[i];
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c->hopemotorout.motor3508_target[i] = c->hopemotorout.rotor3508_jiesuan_2[i];
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c->final_out.final_3508out[i] = PID_Calc(&(c->pid.chassis_3508VPID[i]), c->hopemotorout.motor3508_target[i],
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c->motorfeedback.rotor_rpm3508[i], 0.0f, c->dt);
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c->out.rotor3508_out[i] = c->final_out.final_3508out[i];
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}
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return CHASSIS_OK;
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}
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/*电机输出设定和发送*/
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void Chassis_Setoutput(Chassis_t * c)
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{
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for (int i = 0; i < 4; i++)
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{
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MOTOR_RM_SetOutput(&(c->param->motor_3508_param[i]), c->out.rotor3508_out[i]);
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MOTOR_RM_SetOutput(&(c->param->motor_6020_param[i]), c->out.rotor6020_out[i]);
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}
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MOTOR_RM_Ctrl(&(c->param->motor_3508_param[0]));
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MOTOR_RM_Ctrl(&(c->param->motor_6020_param[0]));
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/*最后这里的数据处理发送和PID计算还未处理写，后面更改，现在注释部分是王志城的代码*/
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// #ifdef calibration
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// #else
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// for (uint8_t i = 0 ; i <4 ; i++){
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// c->hopemotorout.motor6020_target[i]=c->hopemotorout.rotor6020_jiesuan_2[i];
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// chassis6020_detangle[i] = PID_calc(&(c->pid.chassis_6020anglePid[i]),c->motorfeedback.rotor_angle6020[i],
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// c->hopemotorout.motor6020_target[i]);
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// c->final_out.final_6020out[i] = PID_calc(&(c->pid.chassis_6020OmegaPid[i]),c->motorfeedback.rotor_rpm6020[i],
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// chassis6020_detangle[i]);
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// out->chassis6020.as_array[i] = c->final_out.final_6020out[i];
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// c->hopemotorout.motor5065_target[i]=c->hopemotorout.rotor5065_jiesuan_2[i];
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// c->final_out.final_5065out[i]=c->hopemotorout.motor5065_target[i];
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// out->chassis5065.erpm[i] = c->final_out.final_5065out[i];
|
||
// }
|
||
// #endif
|
||
}
|
||
|