Driving Assistance System Mode Switching and Reaction Force Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving assistance systems compromise the driver's sense of initiative by prompting necessary driving operations, leading to a deterioration in driving performance and fail to effectively address risks during vehicle travel.
Innovation Solution
A driving assistance system that includes an operation amount recognition unit, external environment recognition unit, and a mode switching mechanism to adjust reaction force characteristics and switch between normal driving assistance and risk avoidance modes based on the driver's operation and environmental risks, maintaining the driver's initiative while ensuring safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If operation interference is performed to prompt the driver for necessary driving operation amount, then the driver's operation amount becomes appropriate, but the sense of initiative of the driver deteriorates
Solution Approach 1:
The system changes reaction force parameters dynamically based on driver operation state. When driver operation amount is inappropriate, the reaction force characteristics are adjusted to provide subtle guidance without forcing the driver, thus improving operation precision while preserving driver initiative through parameter adaptation rather than rigid control
Solution Approach 2:
The system implements feedback by monitoring driver operation amount and comparing it with appropriate ranges, then adjusting reaction force characteristics accordingly. This closed-loop feedback provides gentle correction to guide the driver toward appropriate operation levels without eliminating driver autonomy, resolving the contradiction between precision and initiative
2Ease of operation
If the system maintains driver initiative in normal driving assistance mode, then the driver's sense of initiative is preserved, but the system cannot effectively address explicit risks in time
Solution Approach 1:
The system dynamically switches between two operational modes: normal driving assistance mode that preserves driver initiative, and risk avoidance mode that takes system initiative. This dynamic adaptability allows the system to maintain driver autonomy during routine operations while automatically transitioning to system-controlled risk avoidance when explicit dangers are detected, resolving the contradiction between driver initiative and risk response effectiveness
Solution Approach 2:
The system performs preliminary risk assessment by monitoring external environment and driver operation continuously. When explicit risks are detected, the system proactively switches to risk avoidance mode before the situation deteriorates, ensuring reliable risk response while maintaining driver initiative during normal conditions through advance preparation and mode readiness
Data Source
AI summary
A driving assistance system performs a driver-initiative normal driving assistance mode as a driving assistance for a vehicle. The system includes a reaction force characteristics change unit configured to change reaction force characteristics of the operation device, if it is determined that the operation amount of the driver is not included in the appropriate operation amount range in the normal driving assistance mode, an explicit risk determination unit configured to determine whether or not an explicit risk is present based on the external environment of the vehicle, and a driving assistance switching unit configured to switch a driving assistance for the vehicle from the normal driving assistance mode to a system-initiative risk avoidance assistance mode, if it is determined by the explicit risk determination unit that the explicit risk is present in the normal driving assistance mode.