fix(avoidance): turn off blinker when the ego return original lane

Signed-off-by: satoshi-ota <satoshi.ota928@gmail.com>

Author: satoshi-ota

planning/behavior_path_avoidance_module/include/behavior_path_avoidance_module/scene.hpp

@@ -404,6 +404,8 @@ class AvoidanceModule : public SceneModuleInterface
 
   bool safe_{true};
 
+  std::optional<UUID> ignore_signal_{std::nullopt};
+
   std::shared_ptr<AvoidanceHelper> helper_;
 
   std::shared_ptr<AvoidanceParameters> parameters_;

planning/behavior_path_avoidance_module/include/behavior_path_avoidance_module/utils.hpp

@@ -176,7 +176,7 @@ double calcDistanceToAvoidStartLine(
   const std::shared_ptr<const PlannerData> & planner_data,
   const std::shared_ptr<AvoidanceParameters> & parameters);
 
-TurnSignalInfo calcTurnSignalInfo(
+std::pair<TurnSignalInfo, bool> calcTurnSignalInfo(
   const ShiftedPath & path, const ShiftLine & shift_line, const double current_shift_length,
   const AvoidancePlanningData & data, const std::shared_ptr<const PlannerData> & planner_data);
 }  // namespace behavior_path_planner::utils::avoidance

planning/behavior_path_avoidance_module/src/scene.cpp

@@ -918,19 +918,34 @@ BehaviorModuleOutput AvoidanceModule::plan()
 
   BehaviorModuleOutput output;
 
+  const auto is_ignore_signal = [this](const UUID & uuid) {
+    if (!ignore_signal_.has_value()) {
+      return false;
+    }
+
+    return ignore_signal_.value() == uuid;
+  };
+
+  const auto update_ignore_signal = [this](const UUID & uuid, const bool is_ignore) {
+    ignore_signal_ = is_ignore ? std::make_optional(uuid) : std::nullopt;
+  };
+
   // turn signal info
   if (path_shifter_.getShiftLines().empty()) {
     output.turn_signal_info = getPreviousModuleOutput().turn_signal_info;
+  } else if (is_ignore_signal(path_shifter_.getShiftLines().front().id)) {
+    output.turn_signal_info = getPreviousModuleOutput().turn_signal_info;
   } else {
     const auto original_signal = getPreviousModuleOutput().turn_signal_info;
-    const auto new_signal = utils::avoidance::calcTurnSignalInfo(
+    const auto [new_signal, is_ignore] = utils::avoidance::calcTurnSignalInfo(
       linear_shift_path, path_shifter_.getShiftLines().front(), helper_->getEgoShift(), avoid_data_,
       planner_data_);
     const auto current_seg_idx = planner_data_->findEgoSegmentIndex(spline_shift_path.path.points);
     output.turn_signal_info = planner_data_->turn_signal_decider.use_prior_turn_signal(
       spline_shift_path.path, getEgoPose(), current_seg_idx, original_signal, new_signal,
       planner_data_->parameters.ego_nearest_dist_threshold,
       planner_data_->parameters.ego_nearest_yaw_threshold);
+    update_ignore_signal(path_shifter_.getShiftLines().front().id, is_ignore);
   }
 
   // sparse resampling for computational cost

planning/behavior_path_avoidance_module/src/utils.cpp

@@ -250,16 +250,37 @@ void pushUniqueVector(T & base_vector, const T & additional_vector)
   base_vector.insert(base_vector.end(), additional_vector.begin(), additional_vector.end());
 }
 
+bool isAvoidShift(const double start_shift_length, const double end_shift_length)
+{
+  constexpr double THRESHOLD = 0.1;
+  return std::abs(start_shift_length) < THRESHOLD && std::abs(end_shift_length) > THRESHOLD;
+}
+
+bool isReturnShift(const double start_shift_length, const double end_shift_length)
+{
+  constexpr double THRESHOLD = 0.1;
+  return std::abs(start_shift_length) > THRESHOLD && std::abs(end_shift_length) < THRESHOLD;
+}
+
+bool isLeftMiddleShift(const double start_shift_length, const double end_shift_length)
+{
+  constexpr double THRESHOLD = 0.1;
+  return start_shift_length > THRESHOLD && end_shift_length > THRESHOLD;
+}
+
+bool isRightMiddleShift(const double start_shift_length, const double end_shift_length)
+{
+  constexpr double THRESHOLD = 0.1;
+  return start_shift_length < THRESHOLD && end_shift_length < THRESHOLD;
+}
+
 bool existShiftSideLane(
   const double start_shift_length, const double end_shift_length, const bool no_left_lanes,
   const bool no_right_lanes)
 {
-  constexpr double THRESHOLD = 0.1;
   const auto relative_shift_length = end_shift_length - start_shift_length;
 
-  const auto avoid_shift =
-    std::abs(start_shift_length) < THRESHOLD && std::abs(end_shift_length) > THRESHOLD;
-  if (avoid_shift) {
+  if (isAvoidShift(start_shift_length, end_shift_length)) {
     // Left avoid. But there is no adjacent lane. No need blinker.
     if (relative_shift_length > 0.0 && no_left_lanes) {
       return false;
@@ -271,9 +292,7 @@ bool existShiftSideLane(
     }
   }
 
-  const auto return_shift =
-    std::abs(start_shift_length) > THRESHOLD && std::abs(end_shift_length) < THRESHOLD;
-  if (return_shift) {
+  if (isReturnShift(start_shift_length, end_shift_length)) {
     // Right return. But there is no adjacent lane. No need blinker.
     if (relative_shift_length > 0.0 && no_right_lanes) {
       return false;
@@ -285,8 +304,7 @@ bool existShiftSideLane(
     }
   }
 
-  const auto left_middle_shift = start_shift_length > THRESHOLD && end_shift_length > THRESHOLD;
-  if (left_middle_shift) {
+  if (isLeftMiddleShift(start_shift_length, end_shift_length)) {
     // Left avoid. But there is no adjacent lane. No need blinker.
     if (relative_shift_length > 0.0 && no_left_lanes) {
       return false;
@@ -298,8 +316,7 @@ bool existShiftSideLane(
     }
   }
 
-  const auto right_middle_shift = start_shift_length < THRESHOLD && end_shift_length < THRESHOLD;
-  if (right_middle_shift) {
+  if (isRightMiddleShift(start_shift_length, end_shift_length)) {
     // Right avoid. But there is no adjacent lane. No need blinker.
     if (relative_shift_length < 0.0 && no_right_lanes) {
       return false;
@@ -314,6 +331,27 @@ bool existShiftSideLane(
   return true;
 }
 
+bool isNearEndOfShift(
+  const double start_shift_length, const double end_shift_length, const Point & ego_pos,
+  const lanelet::ConstLanelets & original_lanes)
+{
+  using boost::geometry::within;
+  using lanelet::utils::to2D;
+  using lanelet::utils::conversion::toLaneletPoint;
+
+  if (!isReturnShift(start_shift_length, end_shift_length)) {
+    return false;
+  }
+
+  for (const auto & lane : original_lanes) {
+    if (within(to2D(toLaneletPoint(ego_pos)), lane.polygon2d().basicPolygon())) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 bool straddleRoadBound(
   const ShiftedPath & path, const ShiftLine & shift_line, const lanelet::ConstLanelets & lanes,
   const vehicle_info_util::VehicleInfo & vehicle_info)
@@ -2323,7 +2361,7 @@ double calcDistanceToReturnDeadLine(
   return distance_to_return_dead_line;
 }
 
-TurnSignalInfo calcTurnSignalInfo(
+std::pair<TurnSignalInfo, bool> calcTurnSignalInfo(
   const ShiftedPath & path, const ShiftLine & shift_line, const double current_shift_length,
   const AvoidancePlanningData & data, const std::shared_ptr<const PlannerData> & planner_data)
 {
@@ -2335,22 +2373,22 @@ TurnSignalInfo calcTurnSignalInfo(
 
   if (shift_line.start_idx + 1 > path.shift_length.size()) {
     RCLCPP_WARN(rclcpp::get_logger(__func__), "index inconsistency.");
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   if (shift_line.start_idx + 1 > path.path.points.size()) {
     RCLCPP_WARN(rclcpp::get_logger(__func__), "index inconsistency.");
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   if (shift_line.end_idx + 1 > path.shift_length.size()) {
     RCLCPP_WARN(rclcpp::get_logger(__func__), "index inconsistency.");
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   if (shift_line.end_idx + 1 > path.path.points.size()) {
     RCLCPP_WARN(rclcpp::get_logger(__func__), "index inconsistency.");
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   const auto start_shift_length = path.shift_length.at(shift_line.start_idx);
@@ -2359,12 +2397,12 @@ TurnSignalInfo calcTurnSignalInfo(
 
   // If shift length is shorter than the threshold, it does not need to turn on blinkers
   if (std::fabs(relative_shift_length) < p.turn_signal_shift_length_threshold) {
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   // If the vehicle does not shift anymore, we turn off the blinker
   if (std::fabs(path.shift_length.at(shift_line.end_idx) - current_shift_length) < THRESHOLD) {
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   const auto get_command = [](const auto & shift_length) {
@@ -2379,7 +2417,7 @@ TurnSignalInfo calcTurnSignalInfo(
     p.vehicle_info.max_longitudinal_offset_m;
 
   if (signal_prepare_distance < ego_front_to_shift_start) {
-    return {};
+    return std::make_pair(TurnSignalInfo{}, false);
   }
 
   const auto blinker_start_pose = path.path.points.at(shift_line.start_idx).point.pose;
@@ -2396,12 +2434,12 @@ TurnSignalInfo calcTurnSignalInfo(
   turn_signal_info.turn_signal.command = get_command(relative_shift_length);
 
   if (!p.turn_signal_on_swerving) {
-    return turn_signal_info;
+    return std::make_pair(turn_signal_info, false);
   }
 
   lanelet::ConstLanelet lanelet;
   if (!rh->getClosestLaneletWithinRoute(shift_line.end, &lanelet)) {
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   const auto left_same_direction_lane = rh->getLeftLanelet(lanelet, true, true);
@@ -2413,13 +2451,21 @@ TurnSignalInfo calcTurnSignalInfo(
     right_same_direction_lane.has_value() || !right_opposite_lanes.empty();
 
   if (!existShiftSideLane(start_shift_length, end_shift_length, !has_left_lane, !has_right_lane)) {
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
   }
 
   if (!straddleRoadBound(path, shift_line, data.current_lanelets, p.vehicle_info)) {
-    return {};
+    return std::make_pair(TurnSignalInfo{}, true);
+  }
+
+  constexpr double STOPPED_THRESHOLD = 0.1;  // [m/s]
+  if (ego_speed < STOPPED_THRESHOLD) {
+    if (isNearEndOfShift(
+          start_shift_length, end_shift_length, ego_pose.position, data.current_lanelets)) {
+      return std::make_pair(TurnSignalInfo{}, true);
+    }
   }
 
-  return turn_signal_info;
+  return std::make_pair(turn_signal_info, false);
 }
 }  // namespace behavior_path_planner::utils::avoidance