Semi-Automated Vehicle Guidance With Infrastructure Loss Fallback
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Solution Overview
Problem
Existing semi-automated vehicle guidance systems rely heavily on infrastructure support, which can fail or have limited functionality, leading to safety risks when infrastructure data is incorrect or unavailable.
Innovation Solution
Generate control signals for lateral and longitudinal guidance of vehicles without infrastructure support, and implement a fallback mechanism to ensure safe vehicle operation using in-vehicle sensors and data, with redundancy and diversity of sensor types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vehicle relies on infrastructure support for semi-automated guidance, then the guidance efficiency and accuracy are improved, but the safety is worsened when infrastructure data is incorrect or unavailable
Solution Approach 1:
The system performs preliminary actions by continuously generating control signals using in-vehicle sensors while infrastructure support is available. This preparation ensures that when infrastructure support is lost, the vehicle can immediately switch to using pre-generated control signals without interruption, thus maintaining safety while preserving guidance accuracy.
Solution Approach 2:
The system implements beforehand cushioning by creating a fallback mechanism that generates control signals independently using in-vehicle sensors. This cushioning layer protects against the harmful effect of infrastructure failure, ensuring that safety is maintained even when infrastructure data becomes unavailable or incorrect.
2Reliability
If control signals are generated using only in-vehicle sensors without infrastructure support, then the reliability is improved through redundancy, but the measurement precision and guidance accuracy are worsened
Solution Approach 1:
The system merges two data sources: infrastructure-provided control signals and in-vehicle sensor-generated control signals. By combining these sources, the system achieves both high guidance accuracy (when infrastructure data is available) and operational reliability (when infrastructure data is lost), as the merged system can seamlessly transition between sources.
Solution Approach 2:
The control signal generation system is designed with multi-functionality to operate in two modes: using infrastructure support for high-precision guidance, and using in-vehicle sensors for reliable fallback operation. This universal design ensures the system can adapt to different operational conditions while maintaining both accuracy and reliability.
3Reliability
If the system continuously monitors infrastructure functionality and maintains fallback control signal generation, then the safety is improved, but the device complexity increases
Solution Approach 1:
The system implements self-service by using the vehicle's existing in-vehicle sensors to generate control signals independently. This eliminates the need for separate backup sensor systems, reducing device complexity while maintaining safety through the ability to operate without infrastructure support.
Data Source
AI summary
A method for the safe, at least semi-automated guidance of a motor vehicle, supported by an infrastructure. During the infrastructure-supported, at least semi-automated guidance of the motor vehicle, control signals are generated for the at least semi-automated control of a lateral guidance and/or longitudinal guidance of the motor vehicle without infrastructure support, and a functionality of a support by the infrastructure for an at least semi-automated guidance of the motor vehicle is checked, the infrastructure-supported, at least semi-automated guidance of the motor vehicle being terminated depending on a result of the check and the control signals being output in order to guide the motor vehicle in at least semi-automated fashion based on the generated output control signals, without support by the infrastructure. A device, a computer program, and a machine-readable storage medium are also described.