Vehicle Control Apparatus Obstacle Detection and Driving Force Limiting
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Solution Overview
Problem
Existing vehicle control systems fail to effectively improve traveling stability, particularly when encountering obstacles on the road surface, leading to potential impacts, decreased steerability, and adverse effects on the vehicle body.
Innovation Solution
A vehicle control apparatus comprising a determination unit and a traveling controller that assesses the appropriateness of passing over obstacles and controls the driving force to prevent the vehicle from doing so, using a stereo camera for obstacle detection and a microprocessor for calculating the estimated passing-over driving force to limit the vehicle's driving force and cause it to stop before the obstacle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle continues traveling without intervention when an obstacle is detected, then the vehicle maintains its current speed and productivity, but the vehicle may pass over the obstacle causing impacts, decreased steerability, and adverse effects on the vehicle body
Solution Approach 1:
The determination unit performs preliminary assessment of obstacle appropriateness before the vehicle reaches the obstacle. The traveling controller applies counter-action by controlling driving force to prevent the vehicle from passing over the obstacle when determined inappropriate, thereby offsetting potential harmful effects before they occur
Solution Approach 2:
The system performs preliminary detection and assessment of obstacles using the stereo camera and determination unit before the vehicle encounters the obstacle. This allows the traveling controller to pre-adjust the driving force to appropriate levels that prevent obstacle passage, ensuring traveling stability before the vehicle reaches the hazard
2Reliability
If the traveling controller limits the driving force to prevent passing over the obstacle, then the vehicle's traveling stability is improved, but the vehicle's speed and productivity are reduced
Solution Approach 1:
The traveling controller dynamically changes the driving force parameter based on the determination result. When an obstacle is determined to be inappropriate to pass over, the controller adjusts the driving force to an appropriate level that prevents obstacle passage while minimizing impact on vehicle speed through controlled, gradual adjustment
3Reliability
If the determination unit determines appropriateness of passing over obstacles, then the vehicle's traveling stability is improved, but the device complexity increases due to additional determination logic
Solution Approach 1:
The determination unit integrates multiple functions including obstacle detection, appropriateness assessment, and control decision-making into a single integrated component. This multi-functional approach improves traveling stability while minimizing the increase in overall system complexity by consolidating rather than adding separate systems
Data Source
AI summary
A vehicle control apparatus includes a traveling controller and a determination unit. The traveling controller is configured to control driving force when a vehicle travels. The determination unit is configured to determine, in a case where an obstacle is detected on a road surface on which the vehicle travels, appropriateness of the vehicle passing over the obstacle. The traveling controller is configured to control the driving force of the vehicle to prevent the vehicle from passing over the obstacle in a case where the determination unit determines that it is inappropriate to pass over the obstacle.