Cruise Control Target Speed Adaptation for Target-Lane Traffic
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Solution Overview
Problem
Current systems inadequately support the lane changing procedure for vehicles equipped with cruise control, failing to effectively adjust speed based on environmental data such as traffic density and flow speed in target lanes.
Innovation Solution
A method and device that utilize environmental data, including information on other vehicles in the target lane, to determine current traffic density and flow speed, adapting the target speed of the cruise control system to optimize lane changes without hindering other vehicles, using input and evaluation apparatuses to adjust the vehicle's speed accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cruise control apparatus maintains a fixed target speed, then the device complexity is reduced, but the adaptability to different traffic conditions deteriorates
Solution Approach 1:
The system performs preliminary analysis of environmental data, traffic density, and flow speed before the lane change execution. The target speed is pre-adapted based on predicted traffic conditions in the target lane, allowing the cruise control to smoothly integrate into varying traffic flows without requiring complex real-time adjustments during the maneuver
Solution Approach 2:
The system continuously receives environmental data from sensors and uses this feedback to dynamically adjust the target speed. The evaluation apparatus monitors traffic density and flow speed in real-time, creating a closed-loop control system that adapts the cruise control target speed based on actual traffic conditions in the target lane
2Adaptability or versatility
If the target speed is frequently adjusted based on environmental data, then the adaptability improves, but the energy consumption increases
Solution Approach 1:
The system applies speed adaptation selectively rather than continuously. It only adjusts the target speed when environmental data indicates significant changes in traffic density or flow speed that would affect lane change safety and smoothness. This partial action approach maintains adaptability while avoiding unnecessary energy consumption from constant speed adjustments
3Measurement precision
If environmental data from all relevant vehicles is processed, then the measurement precision improves, but the difficulty of detecting and measuring increases
Solution Approach 1:
The system extracts only the most relevant features from environmental data - specifically traffic density and flow speed metrics from vehicles in the target lane. Rather than processing all raw sensor data from every detected vehicle, the evaluation apparatus extracts key parameters that directly influence target speed adaptation, reducing computational complexity while maintaining measurement precision
Data Source
AI summary
The invention relates to a method for supporting a lane changing procedure for a vehicle with a cruise control apparatus, wherein the cruise control apparatus adjusts a speed of the vehicle to a target speed, comprising the following steps: receiving environmental data on an environment of the vehicle using an input apparatus, wherein the environmental data at least comprise information on other vehicles in a target lane, determining a current traffic density and a current flow speed in the target lane based on the environmental data using an evaluation apparatus, adapting the target speed based on the determined current traffic density and the current flow speed by using the evaluation apparatus, forwarding the adapted target speed to the cruise control apparatus. The invention further relates to an associated device.