Curve Speed Support Control With Driver Acceleration Override
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Solution Overview
Problem
Current vehicle control systems fail to effectively allow drivers to control their vehicles based on their intentions, particularly in situations involving curved roads, as they do not adequately account for the driver's accelerating operations.
Innovation Solution
A vehicle control device and method that acquires information on curved roads and the driver's accelerating operations, performing deceleration and notification controls to guide the vehicle to a target speed, and automatically stops these controls when the driver's accelerating operation exceeds a predetermined threshold, allowing the vehicle to accelerate according to the driver's intention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle control system performs deceleration control to guide the vehicle to a target speed before a curved road, then the vehicle can safely navigate the curve, but the driver's accelerating operation is not recognized and the vehicle cannot accelerate according to driver's intention
Solution Approach 1:
The control system dynamically switches between deceleration control and acceleration control modes based on real-time detection of driver's accelerating operations. When the driver's accelerating operation exceeds a threshold, the system transitions from enforced deceleration to acceleration control, allowing the vehicle to respond to driver's intention while maintaining safety through conditional override capability
Solution Approach 2:
The system continuously monitors the driver's accelerating operation and uses this feedback to determine whether to maintain or stop the deceleration control. By comparing the detected accelerating operation against a predetermined threshold, the system adjusts its control strategy in real-time, enabling it to recognize and respond to the driver's intention to accelerate
2Speed
If the vehicle control system enforces deceleration control to approach target speed, then the vehicle speed is controlled for curve safety, but the driver's ability to override and accelerate is insufficient
Solution Approach 1:
The system prepares for potential driver override by establishing a clear threshold for accelerating operations that will stop the deceleration control. This preliminary setup allows the driver to know that sufficient accelerating input will override the system's deceleration command, making the override mechanism predictable and easy to use when needed
Data Source
AI summary
A vehicle control device includes a storage device storing a program and a hardware processor. The hardware processor executes the program stored in the storage device to perform: acquiring first information on a curved road present in a traveling direction of a vehicle; acquiring second information including an amount of accelerating operation of a driver of the vehicle; performing support control including one or both of deceleration control for decelerating the vehicle such that a speed of the vehicle approaches a target speed based on the first information and notification control for notifying that the speed of the vehicle approaches the target speed when the vehicle is traveling in a section from an entrance of the curved road to a position at a predetermined distance before the entrance or in the curved road; and stopping the support control when the amount of accelerating operation increases by a predetermined amount or more with reference to the second information while the support control is being performed.