试着编写一组串级pid控制算法程序代码控制无人驾驶自行车
时间: 2024-12-02 07:21:33 浏览: 27
串级PID(Proportional-Integral-Derivative)控制是一种常用的控制策略,常用于需要精确控制的对象,如自动驾驶系统中的自行车。下面是一个简单的Python伪代码示例,假设我们有两个PID控制器,一个是主PID(负责角度控制),另一个是副PID(负责速度控制)。请注意,实际应用中会涉及到传感器输入、硬件通信等复杂部分,这里仅提供基础的控制算法框架:
```python
class PIDController:
def __init__(self, kp, ki, kd):
self.kp = kp
self.ki = ki
self.kd = kd
self.integral = 0
self.prev_error = 0
def update(self, error, dt):
derivative = (error - self.prev_error) / dt if dt > 0 else 0
current_output = self.kp * error + self.ki * self.integral + self.kd * derivative
self.integral += error * dt
self.prev_error = error
return current_output
class BicycleControl:
def __init__(self, main_pid, speed_pid):
self.main_pid = main_pid
self.speed_pid = speed_pid
def run(self, desired_angle, desired_speed, angle_sensor_val, speed_sensor_val, dt):
main_error = desired_angle - angle_sensor_val
speed_error = desired_speed - speed_sensor_val
main_output = self.main_pid.update(main_error, dt)
speed_output = self.speed_pid.update(speed_error, dt)
# 根据PID输出调整电机转速或方向
adjust_angle(main_output)
adjust_speed(speed_output)
# 创建PID实例并初始化控制类
main_pid = PIDController(kp=0.5, ki=0.01, kd=0.001)
speed_pid = PIDController(kp=1, ki=0.005, kd=0.0005)
control = BicycleControl(main_pid, speed_pid)
# 控制循环
while True:
# 更新传感器数据
angle_val = get_angle_sensor_reading()
speed_val = get_speed_sensor_reading()
control.run(angle_val, target_speed, angle_val, speed_val, dt)
```
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