Vehicle Control Logic for Multi-Sensor Safety Assist Activation
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Solution Overview
Problem
Existing vehicles with driving assistance and safety assistance functions experience false activation due to low detection accuracy of sensors, leading to operator annoyance when the safety assistance function is activated in response to a request for driving assistance.
Innovation Solution
A vehicle control apparatus that activates a safety assistance function in a second mode using information from multiple sensors, including sound wave and radio wave sensors, to compensate for low detection accuracy of primary sensors, thereby preventing false activation and operator annoyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the safety assistance function uses information detected by a single sensor with low detection accuracy, then the device complexity is reduced, but the reliability of safety assistance decreases due to false activation
Solution Approach 1:
The patent combines information from multiple sensors (first sensor and second sensor) to activate the safety assistance function. When the first sensor detects a situation requiring safety assistance, the system also checks the second sensor to confirm the situation, thereby reducing false activation while maintaining manageable system complexity through integrated sensor processing.
2Speed
If the safety assistance function is activated based on low accuracy sensor data, then the response speed to driving assistance requests is improved, but the measurement precision of the detection system is insufficient leading to false activation
Solution Approach 1:
The system performs preliminary detection using the first sensor to identify situations requiring safety assistance, then promptly activates the safety assistance function while simultaneously verifying with the second sensor. This preliminary action approach enables fast response while maintaining accuracy through subsequent verification.
Solution Approach 2:
The system uses feedback from the second sensor to verify the detection results of the first sensor before final activation of the safety assistance function. This feedback mechanism ensures measurement precision is maintained while allowing rapid response to genuine safety situations.
3Ease of operation
If the safety assistance function is activated in response to driving assistance requests, then the driving assistance function can work as intended, but the operator experiences annoyance due to false activation from low accuracy sensors
Solution Approach 1:
The second sensor acts as an intermediary verification mechanism between the first sensor's detection and the safety assistance function's activation. This intermediary check prevents false activation that would cause operator annoyance, while still allowing the driving assistance function to work smoothly when genuine safety situations are detected.
Data Source
AI summary
A vehicle comprises a vehicle control apparatus which has a safety assistance function and a driving assistance function on condition that the safety assistance function is working. The safety assistance function is configured to work in one of first and second modes. The first mode is a mode of assisting safety of the vehicle based on first information detected by at least one first sensor, and the second mode is a mode of assisting the safety of the vehicle based on the first information and second information detected by at least one second sensor. The vehicle control apparatus activates the safety assistance function in the second mode and activates the driving assistance function when the at least one first sensor is not activated at a point of time when an activation of the driving assistance function is requested by an operator of the vehicle.