Vehicle Control Interface Box for Driver-Initiated Power State Feedback
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Solution Overview
Problem
In vehicles equipped with an autonomous driving system, unintended malfunctions can occur when the power status transitions regardless of control by the autonomous driving system, leading to inconsistencies between the vehicle's power mode and its actual power status.
Innovation Solution
A vehicle control interface box is configured to provide a signal indicating driver input on a start/stop button to the autonomous driving system, ensuring that the system is notified of power status transitions caused by the driver, thereby preventing unintended malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the autonomous driving system controls the power mode of the vehicle platform, then the power status can be managed automatically, but unintended malfunctions may occur when the power status transitions regardless of control by the autonomous driving system
Solution Approach 1:
The vehicle control interface box provides feedback signals to the autonomous driving system about driver inputs on the start/stop button. This feedback mechanism allows the autonomous driving system to be aware of power status transitions initiated by the driver, enabling it to maintain proper system state consistency and prevent unintended malfunctions while preserving automatic control capabilities
Solution Approach 2:
The vehicle control interface box acts as an intermediary between the driver's start/stop button input and the autonomous driving system. It detects driver inputs and communicates them to the autonomous driving system, serving as a mediator that ensures the autonomous driving system is informed of power status transitions without interfering with the automatic control function
2Reliability
If the vehicle control interface box provides signals about driver input to the autonomous driving system, then power status transitions can be properly communicated, but the system complexity increases
Solution Approach 1:
The vehicle control interface box performs multiple functions: it manages vehicle control signals, detects driver inputs on the start/stop button, and communicates power status transitions to the autonomous driving system. By consolidating these diverse functions into a single interface box, the design reduces overall system complexity while ensuring reliable power status communication
Data Source
AI summary
When a power status of a vehicle makes transition regardless of control by an autonomous driving system while the autonomous driving system is controlling a power mode of a vehicle platform, the autonomous driving system is notified that transition was caused by a driver input. A VP is configured such that an ADS is mountable thereon. The VP includes a base vehicle and a VCIB. The VCIB interfaces between the base vehicle and the ADS. Then, the VCIB provides a signal that indicates a driver input onto a start/stop button for switching between on and off of the base vehicle to the ADS.