Wireless Vehicle Control for Driver Assistance Testing
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Solution Overview
Problem
The testing of driver assistance systems, such as FCW, AEB, and ACC, is complex, time-consuming, and costly due to the need for rigorous and reproducible test scenarios, which are difficult to implement and extend, especially requiring extensive training or complex robotics.
Innovation Solution
A method where a test vehicle with a driver assistance system controls a target vehicle via wireless communication to perform defined driving maneuvers, allowing for accurate representation of test scenarios without the need for highly trained staff or complex robotics, by transmitting control signals for speed, acceleration, deceleration, and steering, enabling automatic and reproducible testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driver assistance systems are tested using traditional methods with trained drivers and complex robotics, then test scenarios can be executed, but the testing process becomes extremely difficult, time-consuming, and costly
Solution Approach 1:
The patent replaces mechanical control systems (robotics) and human drivers with an electronic control system. The master vehicle uses a control system to send electronic signals to the slave vehicle, which automatically executes driving maneuvers. This substitution eliminates the need for complex robotics and extensive driver training, significantly reducing testing time and costs while maintaining test reliability.
Solution Approach 2:
The patent introduces a wireless communication system as an intermediary between the master vehicle and slave vehicle. Control signals are transmitted wirelessly from the master vehicle to the slave vehicle, enabling automatic coordination and execution of test scenarios without direct mechanical coupling or human intervention. This intermediary system simplifies the control architecture and reduces testing complexity.
2Reliability
If driver assistance systems are tested using traditional methods with trained drivers, then test scenarios can be executed, but extensive training periods and multiple trials are required to achieve reproducibility
Solution Approach 1:
The patent replaces human drivers with an electronic control system that automatically executes driving maneuvers in the slave vehicle. This substitution eliminates the need for driver training and reduces variability in test execution, achieving high reproducibility without extensive training periods or multiple trials.
Solution Approach 2:
The slave vehicle is equipped with a control system that automatically receives and executes control signals from the master vehicle. The system serves itself by autonomously performing driving maneuvers based on received commands, eliminating the need for human operators and ensuring consistent, reproducible test execution.
3Manufacturing precision
If driver assistance systems are tested using complex robotics to control vehicles, then driving profiles can be precisely followed, but the system becomes extremely complex and costly
Solution Approach 1:
The patent replaces complex mechanical robotics systems with an electronic control system that communicates wirelessly between vehicles. The master vehicle sends control signals to the slave vehicle, which executes driving maneuvers electronically. This substitution maintains precise following of driving profiles while dramatically reducing system complexity and cost.
Solution Approach 2:
The control system in the slave vehicle is designed to be universal, capable of receiving and executing various types of control signals for different driving maneuvers. This multi-functional system can follow different driving profiles and adapt to various test scenarios without requiring specialized hardware for each function, reducing overall system complexity.
4Adaptability or versatility
If traditional testing methods are used with human drivers, then realistic test situations can be created, but the number and complexity of test scenarios must continue to rise and are difficult to extend
Solution Approach 1:
The patent implements a dynamic test system where the master vehicle can send varied control signals to the slave vehicle, enabling easy adaptation to different test scenarios. The electronic control system can be reconfigured through software to create new driving profiles and test conditions without changing the physical test procedure, allowing the system to handle an increasing number and complexity of test scenarios efficiently.
Data Source
AI summary
A method for testing the operability of a driver assistance system installed in a test vehicle and operating based on information supplied by sensors which detect a target vehicle traveling in the environment of the test vehicle, in particular a driver assistance system intervening in the longitudinal or transverse guidance of the motor vehicle, includes outputting control signals via a wireless communication link to at least partially control from the test vehicle the operation of the target vehicle for intentionally performing at least one defined driving maneuver.