stc32g三轮电磁车用陀螺仪实现差速控制方向代码
时间: 2023-10-26 07:17:49 浏览: 381
以下是基于STC32G三轮电磁车用陀螺仪实现差速控制方向的代码示例:
```c
#include <math.h>
#include <stdbool.h>
#include "MPU6050.h"
#include "motor.h"
#define PI 3.14159
#define Kp 20.0 // 比例常数
#define Ki 0.0 // 积分常数
#define Kd 0.0 // 微分常数
#define MAX_OUTPUT 1000.0 // 最大输出
#define MIN_OUTPUT -1000.0 // 最小输出
#define DT 0.02 // 控制周期,单位秒
typedef struct _PID
{
double Setpoint; // 目标点
double P; // 比例
double I; // 积分
double D; // 微分
double LastError; // 上次误差
double SumError; // 累计误差
double Output; // 输出
} PID;
PID pid;
void PID_Init()
{
pid.Setpoint = 0.0;
pid.P = Kp;
pid.I = Ki;
pid.D = Kd;
pid.LastError = 0.0;
pid.SumError = 0.0;
pid.Output = 0.0;
}
double PID_Update(double Feedback)
{
double Error = pid.Setpoint - Feedback;
pid.SumError += Error * DT;
double DeltaError = (Error - pid.LastError) / DT;
pid.LastError = Error;
pid.Output = pid.P * Error + pid.I * pid.SumError + pid.D * DeltaError;
if (pid.Output > MAX_OUTPUT)
pid.Output = MAX_OUTPUT;
if (pid.Output < MIN_OUTPUT)
pid.Output = MIN_OUTPUT;
return pid.Output;
}
double Get_Angle()
{
int16_t AccX = 0, AccY = 0, AccZ = 0;
int16_t GyroX = 0, GyroY = 0, GyroZ = 0;
double AccAngleX = 0.0, AccAngleY = 0.0;
double GyroRateX = 0.0, GyroRateY = 0.0, GyroRateZ = 0.0;
double GyroAngleX = 0.0, GyroAngleY = 0.0, GyroAngleZ = 0.0;
double ComAngleX = 0.0, ComAngleY = 0.0;
double AngleX = 0.0, AngleY = 0.0, AngleZ = 0.0;
MPU6050_GetRawAcc(&AccX, &AccY, &AccZ);
MPU6050_GetRawGyro(&GyroX, &GyroY, &GyroZ);
AccAngleX = atan(AccY / sqrt(pow(AccX, 2) + pow(AccZ, 2))) * 180.0 / PI;
AccAngleY = atan(-1 * AccX / sqrt(pow(AccY, 2) + pow(AccZ, 2))) * 180.0 / PI;
GyroRateX = GyroX / 131.0;
GyroRateY = GyroY / 131.0;
GyroRateZ = GyroZ / 131.0;
GyroAngleX += GyroRateX * DT;
GyroAngleY += GyroRateY * DT;
GyroAngleZ += GyroRateZ * DT;
ComAngleX = 0.98 * (ComAngleX + GyroRateX * DT) + 0.02 * AccAngleX;
ComAngleY = 0.98 * (ComAngleY + GyroRateY * DT) + 0.02 * AccAngleY;
AngleX = 0.98 * (AngleX + GyroRateX * DT) + 0.02 * ComAngleX;
AngleY = 0.98 * (AngleY + GyroRateY * DT) + 0.02 * ComAngleY;
AngleZ += GyroRateZ * DT;
if (AngleX > 180.0)
AngleX -= 360.0;
if (AngleX < -180.0)
AngleX += 360.0;
if (AngleY > 180.0)
AngleY -= 360.0;
if (AngleY < -180.0)
AngleY += 360.0;
return AngleX;
}
void Control()
{
double angle = Get_Angle();
double output = PID_Update(angle);
Motor_SetSpeed(output, 0, -output);
}
void main()
{
PID_Init();
while (1)
{
Control();
}
}
```
这段代码使用了PID控制算法来控制车辆的方向,其中陀螺仪用于测量车体的角度,PID控制器根据目标点和当前角度计算出需要施加到电机上的力矩,最终通过电机控制来实现差速控制方向。需要注意的是,这段代码仅供参考,具体实现还需要根据实际应用进行修改和优化。
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