Driver Assistance Timing Control for Earlier or Delayed Intervention
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Solution Overview
Problem
Existing vehicle driving assistance systems fail to provide timely alerts or deceleration controls as desired by drivers, particularly aged individuals, leading to inconveniences when assistance functions are delayed or advanced beyond the driver's preferred timing.
Innovation Solution
A vehicle driving assistance apparatus with an electronic control unit that integrates assistance delay and positive assistance functions, allowing drivers to request earlier or later execution of driving assistance controls based on their preferences, and prioritizing these preferences over requested but unnecessary assistance delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the assistance delay function is performed to change the execution condition such that the timing of starting to execute the driving assistance control is later than the base timing, then the driver's preference for later assistance is satisfied, but the driver's preference for earlier assistance (positive assistance function) is overridden and not provided
Solution Approach 1:
The system dynamically adjusts the assistance timing based on real-time detection of driver operations. When a driver operation is detected that indicates the driver is handling the situation, the execution condition is changed to delay assistance. When no such operation is detected, the system provides assistance at the base timing or earlier if positive assistance is requested. This dynamic adjustment allows the system to adapt to different driver preferences and situations.
Solution Approach 2:
The system continuously monitors driver operations on the steering wheel, accelerator pedal, and brake pedal to determine whether to apply the assistance delay function. This feedback mechanism allows the system to detect when the driver is actively managing the vehicle and adjust assistance timing accordingly, ensuring that assistance is provided only when necessary and aligned with driver intent.
2Reliability
If the assistance delay function is performed when the driver carries out a driving operation that renders the driving assistance unnecessary, then the assistance is delayed until it is no longer needed, but the driver may feel inconvenience if assistance starts when it is unnecessary
Solution Approach 1:
The system performs preliminary detection of driver operations before executing the assistance delay function. By detecting whether the driver is carrying out operations on the steering wheel, accelerator pedal, or brake pedal before the base timing, the system can determine in advance whether assistance should be delayed. This preliminary action prevents unnecessary delays that would cause driver inconvenience while still providing delayed assistance when appropriate.
3Ease of operation
If the positive assistance function is performed to change the execution condition such that the timing of starting to execute the driving assistance control is earlier than the base timing, then the driver's preference for earlier assistance is satisfied, but the assistance delay function may override this and delay the assistance
Solution Approach 1:
The system dynamically determines which function to prioritize based on the detection of driver operations. When a driver operation is detected, the assistance delay function is applied and the positive assistance function is not performed. When no driver operation is detected, the positive assistance function can be applied to provide earlier assistance. This dynamic priority management resolves the conflict between the two functions based on real-time driving conditions.
Data Source
AI summary
A vehicle driving assistance apparatus executes a driving assistance control which provides a driver of an own vehicle with a driving assistance when a predetermined execution condition becomes satisfied. The apparatus performs an assistance delay function and a positive assistance function. The assistance delay function is a function to change the predetermined execution condition such that a timing of starting to execute the driving assistance control is later than a base timing. The positive assistance function is a function to change the predetermined execution condition such that the timing of starting to execute the driving assistance control is earlier than the base timing. The apparatus does not perform the assistance delay function even when the assistance delay function is requested to be performed while the positive assistance function is requested to be performed.