Vehicle Speed Control for Accelerator Misoperation Prevention
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Solution Overview
Problem
As the aging population drives an increase in elderly drivers operating vehicles, there is a heightened risk of accidents due to misoperation of accelerator pedals, leading to dangerous situations and potential damage or injury, necessitating a technical solution to prevent abnormal acceleration.
Innovation Solution
A system and method that limit vehicle speed based on predetermined locations and obstacle proximity, using GPS, ADAS sensors, and accelerator pedal sensors to determine if abnormal acceleration prevention is necessary, adjusting speed limits dynamically and releasing them when conditions are met, with the ability to differentiate speed limits according to distance to obstacles and shift stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle speed is limited dynamically based on location and obstacle detection, then safety against misoperation is improved, but device complexity increases
Solution Approach 1:
The control system is divided into separate functional modules: GPS receiver for location detection, ADAS sensor for obstacle detection, accelerator pedal sensor for input monitoring, and vehicle speed control device for execution. This segmentation allows each module to perform its specific function independently, improving reliability while making the overall system more manageable despite increased complexity
Solution Approach 2:
The abnormal acceleration prevention device integrates multiple functions into a single control system: it performs location-based speed limiting, obstacle-based speed limiting, and accelerator pedal operation monitoring. This multi-functionality approach consolidates what could be separate systems into one unified device, improving reliability without proportionally increasing complexity
2Reliability
If the vehicle speed is limited based on accelerator pedal depression amount, then abnormal acceleration is prevented, but ease of operation deteriorates
Solution Approach 1:
The system dynamically changes the speed limit parameter based on the accelerator pedal depression amount parameter. When the depression amount exceeds a reference value, the speed limit is adjusted from normal levels to a limited level. This parameter-based control prevents abnormal acceleration while maintaining ease of operation through automatic, transparent adjustment rather than requiring manual intervention from the driver
3Measurement precision
If GPS and ADAS sensors are integrated for location and obstacle detection, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The GPS receiver and ADAS sensor are merged into a unified detection system that provides both location information and obstacle detection capabilities. The abnormal acceleration prevention device integrates these separate sensing functions with the vehicle speed control, creating a comprehensive monitoring system that improves measurement precision while managing complexity through integrated control architecture
Data Source
AI summary
A system for preventing abnormal acceleration of a vehicle includes a device configured such that in a state in which the vehicle is stopped while the vehicle is turned on, the device is configured to determine whether abnormal acceleration prevention is necessary based on a final destination or a current position of the vehicle before the vehicle is turned off to thereby limit a vehicle speed. The system and a method for preventing abnormal operation of the vehicle can prevent a vehicle accident due to the abnormal acceleration caused by misoperation by a driver, such as misoperation of an accelerator pedal of the vehicle.