Vehicle Driving Force Control During Autonomous-Manual Mode Switching
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Solution Overview
Problem
In autonomous driving vehicles, sudden acceleration due to driver misoperation during mode transitions can cause panic and safety risks, especially when obstacles are present, and traditional suppression systems may not adequately address these issues.
Innovation Solution
A vehicle control device and method that includes a situation acquisition unit, switching unit, and driving force control unit to detect accelerator operations, suppress driving force when necessary, and switch between autonomous and manual driving modes based on obstacle presence, ensuring safe transitions and preventing sudden acceleration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driving force suppression control is executed when switching from autonomous to manual driving mode, then sudden acceleration due to misoperation is prevented, but the driver may panic when suddenly stepping on the accelerator due to the suppression intervention
Solution Approach 1:
The system changes the parameter of driving force suppression based on the detected surrounding situation. When an obstacle is detected, the suppression control is deactivated, allowing the driver to operate the accelerator naturally without panic. When no obstacle is present, the suppression control remains active to prevent misoperation. This dynamic parameter adjustment resolves the contradiction between preventing misoperation and maintaining natural driver response.
2Reliability
If driving force suppression control is executed to prevent sudden acceleration, then traffic safety is improved, but the system complexity increases due to obstacle detection and conditional control logic
Solution Approach 1:
The situation acquisition unit acts as an intermediary that provides obstacle information to the driving force control unit. This mediator enables the suppression control to be activated or deactivated based on real-time surrounding conditions, achieving safety improvement without requiring a completely complex control system redesign. The intermediary approach allows modular integration of obstacle detection with existing suppression control.
3Reliability
If the vehicle switches to autonomous driving mode when an obstacle is detected during manual driving, then obstacle avoidance is ensured, but the driver's manual control authority is reduced
Solution Approach 1:
The system applies preliminary anti-action by preventing the harmful effect of sudden acceleration through driving force suppression control before the driver's misoperation can cause danger. The obstacle detection and conditional deactivation of suppression serve as preliminary measures to ensure that when the driver needs to accelerate urgently, the system is already prepared to allow natural accelerator response, thus maintaining driver authority while ensuring safety.
Data Source
AI summary
A vehicle control device and a vehicle control method thereof are provided. When a vehicle is switched from an autonomous driving mode to a manual driving mode and an operation amount of an accelerator exceeds a preset operation amount or an operation speed of the accelerator exceeds a preset operation speed, a driving force suppression control is executed to suppress a driving force of the vehicle. When the vehicle is switched from the autonomous driving mode to the manual driving mode, whether there is an obstacle around the vehicle is determined according to surrounding situation information. When there is no obstacle around the vehicle, the driving force suppression control continues to be executed. When there is the obstacle around the vehicle, the driving force suppression control is stopped, and the vehicle is switched from the manual driving mode to the autonomous driving mode.