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diff_drive_controller/include/diff_drive_controller/speed_limiter.hpp
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// Copyright 2020 PAL Robotics S.L. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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/* | ||
* Author: Enrique Fernández | ||
*/ | ||
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#ifndef DIFF_DRIVE_CONTROLLER__SPEED_LIMITER_HPP_ | ||
#define DIFF_DRIVE_CONTROLLER__SPEED_LIMITER_HPP_ | ||
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// TODO(christophfroehlich) remove this file after the next release | ||
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#include "control_toolbox/speed_limiter.hpp" | ||
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namespace diff_drive_controller | ||
{ | ||
class [[deprecated("Use control_toolbox/speed_limiter instead")]] SpeedLimiter | ||
{ | ||
public: | ||
/** | ||
* \brief Constructor | ||
* \param [in] has_velocity_limits if true, applies velocity limits | ||
* \param [in] has_acceleration_limits if true, applies acceleration limits | ||
* \param [in] has_jerk_limits if true, applies jerk limits | ||
* \param [in] min_velocity Minimum velocity [m/s], usually <= 0 | ||
* \param [in] max_velocity Maximum velocity [m/s], usually >= 0 | ||
* \param [in] min_acceleration Minimum acceleration [m/s^2], usually <= 0 | ||
* \param [in] max_acceleration Maximum acceleration [m/s^2], usually >= 0 | ||
* \param [in] min_jerk Minimum jerk [m/s^3], usually <= 0 | ||
* \param [in] max_jerk Maximum jerk [m/s^3], usually >= 0 | ||
*/ | ||
SpeedLimiter( | ||
bool has_velocity_limits = false, bool has_acceleration_limits = false, | ||
bool has_jerk_limits = false, double min_velocity = NAN, double max_velocity = NAN, | ||
double min_acceleration = NAN, double max_acceleration = NAN, double min_jerk = NAN, | ||
double max_jerk = NAN) | ||
: speed_limiter_( | ||
has_velocity_limits, has_acceleration_limits, has_jerk_limits, min_velocity, max_velocity, | ||
min_acceleration, max_acceleration, min_jerk, max_jerk) | ||
{ | ||
} | ||
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/** | ||
* \brief Limit the velocity and acceleration | ||
* \param [in, out] v Velocity [m/s] | ||
* \param [in] v0 Previous velocity to v [m/s] | ||
* \param [in] v1 Previous velocity to v0 [m/s] | ||
* \param [in] dt Time step [s] | ||
* \return Limiting factor (1.0 if none) | ||
*/ | ||
double limit(double & v, double v0, double v1, double dt) | ||
{ | ||
return speed_limiter_.limit(v, v0, v1, dt); | ||
} | ||
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/** | ||
* \brief Limit the velocity | ||
* \param [in, out] v Velocity [m/s] | ||
* \return Limiting factor (1.0 if none) | ||
*/ | ||
double limit_velocity(double & v) { return speed_limiter_.limit_velocity(v); } | ||
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/** | ||
* \brief Limit the acceleration | ||
* \param [in, out] v Velocity [m/s] | ||
* \param [in] v0 Previous velocity [m/s] | ||
* \param [in] dt Time step [s] | ||
* \return Limiting factor (1.0 if none) | ||
*/ | ||
double limit_acceleration(double & v, double v0, double dt) | ||
{ | ||
return speed_limiter_.limit_acceleration(v, v0, dt); | ||
} | ||
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/** | ||
* \brief Limit the jerk | ||
* \param [in, out] v Velocity [m/s] | ||
* \param [in] v0 Previous velocity to v [m/s] | ||
* \param [in] v1 Previous velocity to v0 [m/s] | ||
* \param [in] dt Time step [s] | ||
* \return Limiting factor (1.0 if none) | ||
* \see http://en.wikipedia.org/wiki/Jerk_%28physics%29#Motion_control | ||
*/ | ||
double limit_jerk(double & v, double v0, double v1, double dt) | ||
{ | ||
return speed_limiter_.limit_jerk(v, v0, v1, dt); | ||
} | ||
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private: | ||
control_toolbox::SpeedLimiter speed_limiter_; // Instance of the new SpeedLimiter | ||
}; | ||
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} // namespace diff_drive_controller | ||
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#endif // DIFF_DRIVE_CONTROLLER__SPEED_LIMITER_HPP_ |