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fix(steering-odometry): handle infinite turning radius properly #1285

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merged 3 commits into from
Sep 11, 2024
Merged

fix(steering-odometry): handle infinite turning radius properly #1285

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dfa07a1
fix(steering-odometry): handle infinite turning radius properly
reinzor Sep 10, 2024
fdcfe1e
Update steering_controllers_library/src/steering_odometry.cpp
reinzor Sep 11, 2024
7eda2e7
Update steering_controllers_library/src/steering_odometry.cpp
reinzor Sep 11, 2024
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14 changes: 10 additions & 4 deletions steering_controllers_library/src/steering_odometry.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -133,11 +133,17 @@ double SteeringOdometry::get_linear_velocity_double_traction_axle(
const double steer_pos)
{
double turning_radius = wheelbase_ / std::tan(steer_pos);
const double vel_wheel_r = right_traction_wheel_vel * wheel_radius_;
const double vel_wheel_l = left_traction_wheel_vel * wheel_radius_;

if (std::isinf(turning_radius))
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{
return (vel_wheel_r + vel_wheel_l) * 0.5;
}

// overdetermined, we take the average
double vel_r = right_traction_wheel_vel * wheel_radius_ * turning_radius /
(turning_radius + wheel_track_ * 0.5);
double vel_l = left_traction_wheel_vel * wheel_radius_ * turning_radius /
(turning_radius - wheel_track_ * 0.5);
const double vel_r = vel_wheel_r * turning_radius / (turning_radius + wheel_track_ * 0.5);
const double vel_l = vel_wheel_l * turning_radius / (turning_radius - wheel_track_ * 0.5);
return (vel_r + vel_l) * 0.5;
}

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