Driver Warning Output Based on Attentiveness and Gaze Direction
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Solution Overview
Problem
Existing vehicle warning systems output information in an unwarranted manner, which can be annoying to drivers and may not ensure immediate registration, especially when the driver's attentiveness is low, potentially compromising safety in automated driving scenarios.
Innovation Solution
A driver-assistance system that includes a registration unit, sensor, and electronic control unit to ascertain a driver's attentiveness and control expanded warning information output through passenger-compartment lighting and other units based on the driver's gaze direction, ensuring the information is registered even when the driver is not looking at the primary output unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning information is output continuously or repeatedly in the vehicle, then the driver's attention is ensured to be registered, but the driver and other occupants find it annoying due to unwarranted outputs
Solution Approach 1:
The system changes the output parameters of warning information based on the driver's attentiveness state. When the driver is inattentive, the system outputs expanded warning information with higher intensity or through multiple channels. When the driver is attentive, the system reduces or stops output, thereby ensuring reliable registration while avoiding unnecessary annoyance.
Solution Approach 2:
The system uses a sensor to detect the driver's attentiveness state and provides feedback to the control unit. Based on this feedback, the control unit dynamically adjusts the warning information output strategy, switching between normal output, expanded output, and no output to optimize both registration reliability and occupant comfort.
2Reliability
If expanded warning information is output immediately when critical situation is detected, then immediate registration by occupant is ensured, but redundant outputs occur when driver is already attentive
Solution Approach 1:
The system performs preliminary detection of the driver's attentiveness state before outputting expanded warning information. The sensor continuously monitors the driver's state in advance, so when a critical situation arises, the system can immediately determine whether expanded output is necessary, avoiding redundant outputs and simplifying the control logic.
3Device complexity
If traditional warning output methods are used, then the system structure is simple, but the effectiveness of warning information delivery is reduced when driver attentiveness is low
Solution Approach 1:
The system introduces a sensor as an intermediary component to detect the driver's attentiveness state. This intermediary provides information about the driver's condition to the control unit, enabling the system to adapt its warning output strategy and improve effectiveness without requiring a completely complex restructuring of the overall system.
Data Source
AI summary
Methods, systems, and apparatuses for outputting situation-dependent, expanded warning information in a driver assistance system of a vehicle. The driver assistance system outputs situation-contingent, expanded warning information in the vehicle. A registration unit registers an output of warning information in an information-output unit of the vehicle. A sensor ascertains a degree of attentiveness of a driver of the vehicle. An electronic control unit controls an output in the vehicle such that, where a low degree of attentiveness of the driver has been ascertained, the output provides an expanded output of warning information in the vehicle.