Autonomous Vehicle Speed Control for Monitoring-Based Road Response
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Solution Overview
Problem
Existing vehicle control systems fail to differentiate between autonomous driving operations with and without monitoring obligations, leading to inconsistent speed control requirements and reduced driver convenience.
Innovation Solution
A vehicle control device and method that automatically adjust speed control based on whether the vehicle is operating in autonomous driving with or without monitoring obligations, using a location specifying unit and speed control unit to execute location target speed control differently depending on the driver's monitoring status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system executes the same location target speed control for both autonomous driving with monitoring obligation and without monitoring obligation, then the control logic is simple, but driver convenience is reduced and operation reliability is compromised
Solution Approach 1:
The patent implements dynamic speed control logic that automatically adapts to different autonomous driving modes. The control system switches between different speed control strategies based on whether the driver has monitoring obligation, enabling the system to optimize for either driver convenience (when monitoring is required) or operational reliability (when monitoring is not required) without manual intervention.
Solution Approach 2:
The patent changes the control parameters of location target speed control based on the autonomous driving mode. When the driver has monitoring obligation, the system uses one set of speed control parameters that prioritize driver convenience, while when monitoring obligation is absent, it switches to different parameters that prioritize operational reliability, thus resolving the contradiction through parameter adaptation.
2Reliability
If the system differentiates speed control between autonomous driving with and without monitoring obligation, then operation reliability is improved, but the control system complexity increases
Solution Approach 1:
The patent employs dynamic adaptation of control strategies based on the autonomous driving mode. The system automatically adjusts its behavior according to whether the driver has monitoring obligation, ensuring optimal performance for each mode while managing complexity through automated mode-based switching rather than manual configuration.
Solution Approach 2:
The patent creates a universal location target speed control system that serves multiple functions: it operates effectively both when the driver has monitoring obligation and when it does not. By designing a single control system that can adapt to different modes, the patent avoids the need for separate control systems, thus improving reliability without proportionally increasing complexity.
3Ease of operation
If the system uses a unified speed control strategy for all autonomous driving operations, then the control logic is simple, but driver convenience and safety are compromised
Solution Approach 1:
The patent implements dynamic control that adapts to the specific autonomous driving mode in operation. When the driver has monitoring obligation, the system uses control parameters optimized for driver convenience. When monitoring obligation is absent, it switches to parameters optimized for operational safety, thus resolving the contradiction by making the control strategy dynamic rather than static.
Solution Approach 2:
The patent changes control parameters based on the autonomous driving mode to balance driver convenience and operational safety. By adjusting speed control parameters according to whether the driver is monitoring, the system ensures appropriate behavior for each mode without requiring completely separate control systems.
Data Source
AI summary
A vehicle control device specifies a travel location of a subject vehicle; and executes a location target speed control, which is a speed control with respect to a location as a control target for automatically changing a speed of the vehicle when a travel location of the vehicle is a specific location where a speed change of the vehicle is required due to a structure of a road. The vehicle control device executes the location target speed control differently depending on whether the subject vehicle is in the autonomous driving with monitoring obligation or in the autonomous driving with no monitoring obligation.