Vehicle Control System Single Switch Mode Transition
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Solution Overview
Problem
The complexity of existing vehicle control systems requires multiple switches for automated driving and manual driving modes, leading to potentially difficult operations for occupants.
Innovation Solution
A vehicle control system with a single switch that enables easy switching between automated driving and travel assist modes, allowing for setting and returning to a set speed, and featuring a toggle switch for intuitive speed changes, thereby simplifying operations and reducing the risk of unintended speed changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple switches are provided for different driving control functions (automated driving switch, travel assist switch, etc.), then each function can be controlled independently, but the number of switches increases and operation becomes difficult
Solution Approach 1:
The patent combines multiple driving control functions (automated driving, travel assist, speed setting) into a single switch operation. The single switch accepts different operation patterns (pressing, sliding, rotating) to trigger different functions, eliminating the need for multiple separate switches while maintaining full functional coverage.
Solution Approach 2:
The single switch is designed to perform multiple functions depending on the operation pattern. It can switch between automated driving mode, travel assist mode, set speed, and return to set speed based on how it is operated (pressed, slid, rotated), making one component universal for all driving control functions.
2Ease of operation
If a single switch is used for multiple driving control functions, then the number of switches is reduced and operation becomes easier, but the switch must handle complex multiple functions
Solution Approach 1:
The switch design incorporates dynamic operation patterns (pressing, sliding in different directions, rotating) that allow a single physical component to dynamically change its function based on the user's input method. This dynamic behavior enables complex functionality to be accessed through simple, intuitive physical actions.
Solution Approach 2:
The control unit acts as an intermediary that translates the physical switch operations into appropriate driving control functions. It interprets different switch operation patterns and activates the corresponding functions (automated driving, travel assist, speed management), thereby managing the complexity internally while presenting a simple interface to the user.
3Extent of automation
If automated driving is always available, then the system can provide highest level assistance, but when not available the system must fallback to travel assist
Solution Approach 1:
The system dynamically changes the automation level parameter based on availability conditions. When automated driving is available, the system operates at the highest automation level; when not available, it automatically adjusts to travel assist mode with lower automation, thereby adapting the automation extent to current system capabilities.
Data Source
AI summary
A vehicle control system includes: a first switch that accepts an operation of an occupant of a vehicle; and a performance part that performs, when the first switch is operated, travel assist in a node in which an assist degree is the largest at that time point.