Vehicle Headway Control with Dual Deceleration Systems
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Solution Overview
Problem
Existing vehicle assist systems for controlling deceleration can operate simultaneously, leading to driver confusion and misinterpretation of control specifics, as multiple deceleration controls may activate regardless of the driver's intentions.
Innovation Solution
A vehicle headway distance control apparatus with two deceleration control systems and a driver-operable selection section, allowing the driver to turn each system on or off independently, ensuring that both systems do not operate simultaneously, and providing notification and priority selection to prevent confusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple deceleration control systems are provided in a vehicle, then the versatility and adaptability of deceleration control are improved, but the driver may experience confusion and misinterpretation due to simultaneous operation of different controls
Solution Approach 1:
A selection section is introduced as an intermediary component between the driver and multiple deceleration control systems. This selection section allows the driver to choose which deceleration control system to activate, preventing simultaneous operation of multiple systems and eliminating driver confusion. The selection section mediates the interaction by ensuring only one control system operates at a time while providing clear feedback about the selected system's status.
2Adaptability or versatility
If multiple deceleration control systems with different control specifics are provided, then the adaptability to different driving conditions is improved, but the device complexity increases due to multiple independent control systems
Solution Approach 1:
The selection section serves multiple functions: it selects which deceleration control system to activate, provides feedback about the selected system, and prevents simultaneous operation of multiple systems. By making the selection section multi-functional, the overall system complexity is reduced despite having multiple deceleration control systems available, as the selection section consolidates several control management functions into a single component.
3Ease of operation
If the driver is allowed to freely select between multiple deceleration control systems, then the ease of operation is improved, but the risk of incorrect selection and confusion increases
Solution Approach 1:
The selection section provides feedback to the driver about which deceleration control system is currently selected or available. This feedback mechanism ensures that the driver's selection is accurately reflected in the system state, preventing incorrect selection and confusion. The feedback creates a reliable connection between driver intent and system response, maintaining both ease of operation and selection accuracy.
Data Source
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AI summary
A vehicle headway distance control apparatus (3) is provided with a first deceleration (α*1) control system for controlling the deceleration of a vehicle according to a distance (L) between the host vehicle and a preceding obstacle, and a second deceleration (α*2) control system, which is different from the first deceleration control system and which controls the deceleration of a vehicle according to the same distance (L). A driver operable selection section (8∼13) is configured to allow a driver to arbitrarily turn "on" and "off" each of the first and second deceleration control systems, but prohibit simultaneously operation of both of the first and second deceleration control systems.