Stopped-Vehicle Movement Control With Obstacle-Limited Brake Release
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Solution Overview
Problem
There is a challenge in safely and conveniently moving a stopped vehicle when the driver is not present, as it can cause inconvenience to others and poses a risk of accidents, especially when the vehicle is heavy and requires manual pushing.
Innovation Solution
A driver assistance apparatus that includes sensors to detect obstacles, a camera to set a stopped-vehicle movement range, and a processor to control the vehicle's brakes, allowing the vehicle to move when the driver is not present, ensuring safe movement within a designated range and preventing collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle brake is released to allow the vehicle to move when the driver is not present, then the convenience of moving the stopped vehicle is improved, but the safety risk increases due to potential uncontrolled movement
Solution Approach 1:
The system continuously monitors the vehicle's movement state, obstacle detection sensor readings, and position relative to the predetermined range. When the vehicle approaches the range limit or an obstacle is detected, the control unit receives feedback signals and automatically re-applies the brake to stop the vehicle, ensuring safe operation without driver intervention
Solution Approach 2:
The vehicle system autonomously manages its own movement and braking without requiring driver service. The control unit automatically activates the brake when movement limits are approached or obstacles are detected, enabling the vehicle to self-regulate its movement within the predetermined safe range
2Reliability
If the driver returns to move the stopped vehicle manually, then the vehicle can be moved reliably, but the driver's time and effort are consumed
Solution Approach 1:
The driver sets the predetermined movement range in advance before leaving the vehicle. The system is pre-configured with safety parameters and automatic braking thresholds, so when the driver returns, the vehicle can be moved immediately without requiring the driver to manually operate the brake or monitor movement limits
Solution Approach 2:
The vehicle autonomously handles the movement task within the predetermined range without requiring the driver to physically push or manually control the vehicle. The automatic braking system manages the movement process, freeing the driver from time-consuming manual intervention
3Adaptability or versatility
If the vehicle is allowed to move freely without range limitations, then the flexibility of vehicle movement is improved, but the risk of collision with obstacles increases
Solution Approach 1:
The obstacle detection sensor acts as an intermediary between the vehicle movement system and potential hazards. It continuously scans the environment and provides early warning of obstacles, allowing the control unit to intervene and apply the brake before a collision occurs, thus enabling safe movement within the predetermined range
Solution Approach 2:
The obstacle detection sensor provides continuous feedback about the environment ahead of the moving vehicle. When an obstacle is detected within the predetermined range, the feedback signal triggers automatic braking, allowing the vehicle to maintain flexibility in movement while being protected from collisions through real-time environmental monitoring
Data Source
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AI summary
A driver assistance apparatus includes a sensor unit sensing an obstacle around a vehicle; a memory storing a stopped-vehicle movement range; a brake driving control unit turning on or off a vehicle brake; and a processor controlling the brake driving control unit to turn on or off the vehicle brake according to the obstacle around the vehicle and the stopped-vehicle movement range, wherein the processor provides a stopped-vehicle movement mode in which the vehicle moves, when a user is not in the vehicle.