Vehicle Safety Function Deactivation Delay Mechanism
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Solution Overview
Problem
Current safety systems in vehicles often cannot be overridden by drivers during emergency situations, leading to potential misinterpretation of driver reactions and ineffective deactivation of safety functions, as they are designed to intervene without allowing driver control.
Innovation Solution
A method that introduces a dead time or startle reaction duration after a safety function is activated, allowing the driver to intentionally deactivate the system only after this period has elapsed, ensuring that driver actions can be accurately interpreted as an override request.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the safety function is designed to intervene automatically without driver control, then the safety intervention reliability is improved, but the driver cannot override the system even when intended
Solution Approach 1:
The system implements a dead time period after safety function activation during which override requests are preempted. This preliminary action prevents premature override attempts during the driver's natural startle reaction, ensuring that only deliberate override requests after the dead time can deactivate the safety function. The dead time acts as a preliminary filter that distinguishes between reflexive and intentional driver actions.
2Speed
If the safety function can be deactivated immediately by driver intervention, then the driver control responsiveness is improved, but rash panic reactions may lead to inappropriate deactivation
Solution Approach 1:
The dead time mechanism serves as a preliminary anti-action that counteracts rash panic reactions by temporarily blocking deactivation requests during the driver's startle reaction period. This prevents inappropriate deactivation that would occur if the system responded immediately to reflexive driver actions, while still allowing deliberate override requests to proceed after the dead time expires.
Data Source
Figure 1~2
AI summary
The invention relates to a method for deactivating a safety function in a motor vehicle. The invention is characterized in that the safety function, once activated, can only be deactivated by the driver after a delay time has elapsed.