Drive Support Alarm Continuation After Crash Prevention
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Solution Overview
Problem
Existing drive support apparatuses fail to ensure continuous alarm issuance after crash prevention control is ended, leading to reduced vehicle traveling safety due to potential undetected target objects when the vehicle starts moving with creep torque.
Innovation Solution
A drive support apparatus that includes a target object detecting part, an alarm controlling part, and a crash prevention controlling part, which continues to issue an alarm until a predetermined timing after the crash prevention control has been ended, ensuring the driver is alerted even after automatic braking is canceled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alarm is ended simultaneously at the end of automatic braking, then the system operates efficiently with synchronized control, but the vehicle traveling safety is reduced because the sensor cannot detect the target object when the vehicle starts moving with creep torque
Solution Approach 1:
The alarm control unit continues issuing the alarm for a predetermined time period after the crash prevention control is ended, before the vehicle actually starts moving with creep torque. This preliminary continuation of the alarm ensures the driver is warned in advance of potential danger, resolving the safety issue without requiring complex real-time motion prediction systems.
2Reliability
If the alarm continues after crash prevention control ends, then the driver is continuously warned of potential danger, but the control system becomes more complex
Solution Approach 1:
The system pre-determines a fixed time period for alarm continuation after crash prevention control ends, rather than using complex real-time assessment of vehicle motion state. This simple time-based control logic achieves reliable alarm function while maintaining control system simplicity.
Solution Approach 2:
The alarm control unit automatically manages its own operation timing based on the end timing of crash prevention control, extending the alarm for a predetermined period without requiring external intervention or complex coordination with other system components.
Data Source
AI summary
To improve traveling safety of a vehicle by continuing an alarm after the end of a crash prevention control for preventing a crash between an own vehicle and a target object, a drive support apparatus of the invention detects the target object which exists in a predetermined detection area ahead of the own vehicle, starts to issue an alarm with an alarm generating part to a driver of the own vehicle if probability of a crash between the own vehicle and the target object is greater than a predetermined value, start a crash prevention control in which an automatic driving operation is performed for preventing the crash with the target object, and continues to issue the alarm until a predetermined timing (timing when the driver of the own vehicle performs a predetermined driving operation, for example) after the crash prevention control by the crash prevention controlling part has been ended.