Driving Change Control Device for Autonomous Handover
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Solution Overview
Problem
Drivers experience anxiety when receiving a driving operation from an autonomous driving function, especially due to high driving loads during transitions from autonomous to manual control.
Innovation Solution
A driving change control device and method that adjust travel control parameters before the transition to lower the driving load, allowing a smoother handover of control from autonomous driving to the driver by setting a change execution section and adjusting parameters such as target speed and inter-vehicular distance to reduce stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle cruises at high speed or performs following traveling under autonomous driving function, then the autonomous driving performance is improved, but the driver experiences high driving load and anxiety when receiving control back
Solution Approach 1:
The system performs preliminary actions by adjusting travel control parameters (speed, acceleration, following distance) in the switching section before the change execution section. This prepares the vehicle in a low driving load state before transferring control to the driver, reducing driver anxiety and improving acceptance of the handover.
Solution Approach 2:
The system changes physical parameters of vehicle operation (traveling speed, acceleration rate, inter-vehicular distance) in the switching section to create a low driving load state. These parameter adjustments ensure that when control transfers to the driver, the vehicle is in a more manageable state, resolving the contradiction between autonomous performance and driver acceptance.
2Stability of the object's composition
If smooth switching is performed by gradual speed adjustment, then the transition process is improved, but the driver still experiences anxiety due to high driving load state
Solution Approach 1:
The system performs preliminary speed and acceleration adjustments in the switching section before the actual handover. By pre-adjusting these parameters to create a low driving load state, the system ensures both smooth transition and reduced driver anxiety when control transfers to the manual driver.
Solution Approach 2:
The system modifies operational parameters (speed, acceleration, following distance) in the switching section to transform the high driving load state into a low driving load state. This parameter transformation maintains transition smoothness while simultaneously reducing driver anxiety during the handover process.
Data Source
AI summary
A driving change control device in a vehicle equipped with an autonomous driving function for performing a driving operation on behalf of a driver and controlling an exchange of the driving operation between the autonomous driving function and the driver includes: a section setting unit that sets a change execution section where a driving change from the autonomous driving function to the driver is performed; and a parameter adjustment unit that changes a travel control parameter referred to by the autonomous driving function in a switching section before the change execution section, to adjust a traveling state of the vehicle to be a state with a driving load lower than a driving load before arrival at the switching section.