Adaptive Following Distance Control for Lateral Motion Detection
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Solution Overview
Problem
Existing following distance control systems for vehicles do not adequately respond to dynamic behaviors of the vehicle in front, such as lateral and combined longitudinal-lateral dynamics, which can lead to safety issues in poor visibility conditions.
Innovation Solution
A following distance control system that incorporates sensors to detect actual and expected dynamic behaviors of the vehicle in front, including lateral and vertical dynamics, and adjusts the following distance based on significant deviations from expected behaviors or conditions, using adaptive control signals for the vehicle's drive and braking systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the following distance control system only monitors longitudinal distance and speed, then the system complexity is reduced, but the system cannot detect lateral dynamic behaviors and states of the vehicle in front, reducing safety in poor visibility conditions
Solution Approach 1:
The sensor system is designed to perform multiple functions: detecting longitudinal following distance, lateral position, vertical position, and various states of the vehicle in front (smoke, dimensions, load). This multi-functional sensor system allows the following distance control system to monitor comprehensive dynamic behaviors without requiring separate dedicated sensors for each parameter, thereby improving safety while managing system complexity.
Solution Approach 2:
The electronic control system acts as an intermediary that receives and integrates signals from the multi-functional sensor system, processes the data to detect deviations in dynamic behavior, and generates appropriate control signals. This intermediary processing layer enables the system to handle complex multi-parameter monitoring while maintaining a modular and manageable system architecture.
2Measurement precision
If the sensor system detects multiple parameters including lateral and vertical dynamics, then the measurement precision of vehicle behavior is improved, but the quantity of data to be processed increases
Solution Approach 1:
The electronic control system extracts only the relevant information needed for safety-critical decisions from the large volume of sensor data. Instead of processing all detected parameters equally, the system focuses on identifying significant deviations in dynamic behavior that indicate potential safety risks, thereby reducing the effective data quantity that requires detailed processing while maintaining high measurement precision.
Solution Approach 2:
The system performs preliminary filtering and preprocessing of sensor data to identify and flag significant deviations before full processing. By detecting anomalies such as unexpected lateral movements, vertical changes, or state transitions in advance, the system prepares only the critical data subsets for detailed analysis, reducing the overall data processing burden while maintaining high detection precision.
3Adaptability or versatility
If the electronic control system adapts control signals based on significant deviations, then the adaptability of the following distance control is improved, but the response time may be delayed due to additional evaluation steps
Solution Approach 1:
The electronic control system continuously monitors sensor data and performs preliminary evaluation to detect significant deviations in dynamic behavior before they escalate into safety-critical situations. By identifying anomalies such as unexpected lateral movements or state changes in advance, the system prepares adaptive control responses proactively, reducing the actual response time when adaptation is needed while maintaining high adaptability.
Solution Approach 2:
The system implements continuous feedback loops where sensor data is constantly evaluated against expected dynamic behavior patterns. When significant deviations are detected, the feedback mechanism triggers immediate adaptation of control signals. This real-time feedback approach ensures that the system maintains high adaptability while minimizing response delays through continuous monitoring and rapid response to detected anomalies.
Data Source
AI summary
The invention relates to a following distance control system for a motor vehicle (1), which is designed and set up to control at least one following distance (d) of the motor vehicle (1) in relation to a vehicle in front (2) to a target following distance (d0) without intervention by a driver of the motor vehicle (1), comprising: a sensor system (3, 7, 9), which is designed and set up to detect at least one actual following distance (d) of the motor vehicle (1) in relation to the vehicle in front (2) in a detection range and to generate a distance signal (Sd) as a function thereof, an electronic control (5), which is designed and set up to evaluate at least a distance signal (Sd) and to generate a control signal (S) for a drive device and/or a braking device of the motor vehicle (1) at least as a function thereof, in order to regulate the detected following distance (d) to the target following distance (d0), the electronic control system (5) furthermore being set up and designed in order to take into account at least one further signal (Sk; SGPS), which is generated by the sensor system (3, 7, 9), wherein the sensor system (3, 7, 9) is set up and designed to generate this at least one further signal (Sk, SGPS) as a function of a dynamic behavior of the vehicle in front (2), which differs from a purely longitudinal dynamic of the vehicle in front (2), and/or as a function of a state of the vehicle in front (2), which differs from the dynamic behavior of the vehicle in front (2), and/or as a function of an activation of at least one lighting device (8) of the vehicle in front (2).