Accelerator Pedal Override in Automated Longitudinal Control
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Solution Overview
Problem
Existing vehicle guidance systems fail to reliably and robustly integrate signaling units, such as traffic lights and signs, into automated longitudinal guidance, affecting safety, availability, and comfort, particularly in urban environments.
Innovation Solution
A vehicle guidance system that integrates signaling units into automated longitudinal control, using sensors and map data to determine signaling unit attributes, allowing automated deceleration or passage based on signaling states, with user interface options for manual override.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automated longitudinal guidance integrates signaling units, then safety and reliability are improved, but system complexity increases
Solution Approach 1:
The system segments the guidance functionality by separating signaling unit detection and response logic from the core automated longitudinal guidance control. The control unit detects signaling units independently and generates separate control signals for deceleration or stopping, while maintaining the primary cruise control function intact. This modular approach improves safety through integrated signaling handling without overwhelming system complexity.
Solution Approach 2:
The system performs preliminary detection and classification of signaling units before executing automated responses. The control unit identifies signaling units ahead of the vehicle, determines their type and relevance, and prepares appropriate control signals in advance. This preliminary action allows the system to integrate signaling unit handling smoothly into the longitudinal guidance workflow, improving reliability without proportionally increasing complexity.
2Ease of operation
If automated deceleration at signaling units is implemented, then comfort is improved, but loss of time occurs due to stopping
Solution Approach 1:
The system dynamically adjusts the automated response based on signaling unit characteristics and vehicle context. For less critical signaling units or when traffic conditions permit, the system may opt for controlled deceleration rather than complete stopping, or adjust the deceleration profile to be more gradual. This dynamic approach enhances comfort by adapting to varying situations while minimizing unnecessary time loss through intelligent decision-making about when and how to stop.
3Ease of operation
If multiple operating elements are provided for user interaction, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The operating elements are designed with multi-functionality to reduce overall interface complexity. The first operating element serves dual purposes: it can activate the automated longitudinal guidance system and also serve as a confirmation input for signaling unit responses. Similarly, the second operating element can both deactivate the system and serve as a cancellation input for automated responses at signaling units. This universal design provides comprehensive user control without proportionally increasing the number of physical components.
Data Source
AI summary
A vehicle control system provides a driving function for automated longitudinal control of a vehicle. The vehicle control system is designed to detect that the accelerator pedal of the vehicle is actuated. The vehicle control system is also designed to capture actuation information in relation to the actuation of the accelerator pedal and/or in relation to a response of the vehicle caused by the actuation of the accelerator pedal, and to adapt the operation of the driving function according to the actuation information.