Adaptive Vehicle Warning Timing Based on Object Position
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Solution Overview
Problem
Existing vehicle warning devices fail to provide optimal timing for warnings based on the position at which an object will pass near the vehicle, leading to either premature or delayed driver awareness, which can impact safety.
Innovation Solution
A warning device that adjusts the timing of warnings using an electronic control unit (ECU) with a target sensor and state detection sensor to determine the expected passing position and speed of an object, allowing for earlier warnings when objects are closer and later warnings when they are farther away, thereby optimizing the timing of alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If warning is started in late timing using only collision time or distance detection, then driver understanding is sufficient for objects passing farther away, but warning timing is not optimum for objects passing nearer to the vehicle
Solution Approach 1:
The patent changes the parameter of warning timing based on the passing position parameter. The ECU determines different warning start timings according to the distance from the own vehicle to the expected passing position, making the warning timing adaptive rather than fixed. This resolves the contradiction by optimizing both the timing efficiency and the reliability of driver understanding for different scenarios.
Solution Approach 2:
The patent makes the warning timing dynamic rather than static. Instead of using a fixed warning timing based solely on collision time or distance, the system dynamically adjusts the warning start timing based on the real-time determined passing position of the object. This dynamic adjustment allows the system to provide appropriate warning timing for both distant and near passing objects.
2Reliability
If warning is started in sooner timing for objects nearer to the vehicle, then driver understanding is improved, but warning may become unnecessary for objects passing farther away
Solution Approach 1:
The patent changes the warning timing parameter based on the passing position parameter. By determining the expected passing position and calculating the distance from the own vehicle, the system adjusts the warning timing parameter to match the actual risk level, avoiding both premature and delayed warnings.
Solution Approach 2:
The system uses feedback from the object detection and position determination to adjust the warning timing. The ECU continuously monitors the object's position and uses this feedback information to determine the appropriate warning start timing, ensuring that warnings are neither too early nor too late based on actual conditions.
Data Source
AI summary
A warning device for a vehicle to start a warning at an optimum timing depending on a position at which an object passes near the vehicle. The warning device has a warning part for warning a driver of a presence of the object that will pass near the vehicle. The warning device has a timing changing part for changing a timing of starting the warning via the warning part according to a size of an allowance space from the vehicle to an expected passing position at which the object is expected to pass near the vehicle.