Vehicle Travel Control Restart Logic for Brake Release Intent
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Solution Overview
Problem
Existing vehicle control systems, such as adaptive cruise control (ACC), may restart travel control against the driver's intention, particularly when the brake is released in certain conditions, leading to safety and convenience issues.
Innovation Solution
A vehicle control device and method that temporarily stops and restarts travel control based on driver inputs, with a control circuit that prevents restart when specific conditions are met, such as the vehicle being stopped and the hazard lamp activated, ensuring that travel control is not resumed against the driver's intention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the travel control is automatically restarted when the brake is released, then the convenience of operation is improved, but the reliability deteriorates due to unintended restarts against driver's intention
Solution Approach 1:
The control circuit monitors brake pedal operation and uses this feedback to determine whether to restart travel control. By continuously monitoring the brake operation state and using this information to control the restart behavior, the system accurately recognizes driver intention while maintaining convenient automatic restart functionality when appropriate.
2Reliability
If the travel control is temporarily stopped when the brake is applied, then the safety is improved by preventing unintended acceleration, but the productivity deteriorates due to interruption of automated driving assistance
Solution Approach 1:
The system dynamically adjusts the travel control state based on real-time brake operation detection. When the brake is applied, the system transitions from active travel control to temporary stop state, ensuring safety. When the brake is released under appropriate conditions, the system automatically transitions back to active travel control, maintaining productivity and continuous driving assistance.
Data Source
AI summary
A vehicle control device is configured to execute travel control of controlling a vehicle such that the vehicle travels at a target speed corresponding to an inter-vehicle distance between a preceding vehicle that travels in front of the vehicle and the vehicle, or a predetermined speed set by a driver of the vehicle. The vehicle control device is configured to temporarily stop the travel control in response to the driver applying a brake of the vehicle, and to restart the travel control in response to the driver releasing the brake in the vehicle during travel by the travel control, and the vehicle control device includes a control circuit that does not restart the travel control, when the brake is released in a case where a predetermined condition is satisfied.