Vehicle Controller Mistaken Operation Notification Priority
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Solution Overview
Problem
Existing vehicle control devices fail to effectively prevent drivers from continuing mistaken accelerator operations due to immediate failure notifications, leading to unintended vehicle acceleration and driver unease when control failures occur during mistaken operation states.
Innovation Solution
A vehicle control device that determines mistaken operation states and executes limit control and notifications to urge drivers to stop the accelerator, prioritizing mistaken operation notifications over failure notifications at the time of control failure, ensuring the driver is alerted to terminate the mistaken operation even after a control failure occurs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device executes a failure notification immediately after a control failure occurs, then the driver is notified of the failure, but the possibility of making the driver stop the mistaken operation on the accelerator is lowered
Solution Approach 1:
The notification type is dynamically changed based on the operational state. When a control failure occurs during mistaken operation, the system switches from executing a failure notification to executing a mistaken operation notification, which is more effective at making the driver stop the mistaken operation. This dynamic adaptation resolves the contradiction by prioritizing the more effective notification type in the specific context of mistaken operation.
Solution Approach 2:
The notification parameter is changed from failure notification to mistaken operation notification based on the detected state. The system detects whether mistaken operation is occurring and adjusts the notification type accordingly, changing the notification parameter to optimize the outcome of making the driver stop the mistaken operation while still informing them of the control failure.
2Productivity
If the device executes a mistaken operation notification to urge the driver to stop the accelerator, then the driver is urged to terminate the mistaken operation, but the driver may not be notified of the control failure occurrence
Solution Approach 1:
The notification parameter is changed from failure notification to mistaken operation notification based on the detected state. The system detects whether mistaken operation is occurring and adjusts the notification type accordingly, changing the notification parameter to optimize the outcome of making the driver stop the mistaken operation while still informing them of the control failure.
Solution Approach 2:
The mistaken operation notification serves as an intermediary that indirectly conveys the control failure information. By notifying the driver of the mistaken operation in a context where control failure has occurred, the system indirectly informs the driver of the failure situation while prioritizing the urgent need to stop the mistaken operation.
3Loss of information
If the device executes both failure notification and mistaken operation notification at the time of control failure, then both information are provided, but the notification effectiveness is reduced due to information overload
Solution Approach 1:
The system extracts and prioritizes the most critical notification (mistaken operation notification) when control failure occurs during mistaken operation. By taking out the mistaken operation notification as the primary message and omitting the failure notification, the system avoids information overload while still conveying the essential information needed for the driver to respond appropriately.
Solution Approach 2:
The notification quality is localized to the specific situation. When control failure occurs during mistaken operation, the system provides a localized notification (mistaken operation notification) that is specifically tailored to the current critical situation, rather than providing a generic combination of notifications. This localized approach enhances driver response clarity.
Data Source
AI summary
A vehicle control device comprises an accelerator (22a) which a driver of a vehicle operates in order to accelerate the vehicle, and a controller configured to execute a limit control for imposing a limitation on a driving force, in such a manner that the driving force is prevented from becoming excessively large, when a predetermined limit condition is satisfied. The controller executes the limit control and a mistaken operation notification, when a mistaken operation state has been occurring. The controller executes a failure notification, when the mistaken operation state has not been occurring at a failure occurrence time point at which a control failure that the controller cannot execute the limit control has occurred. The controller continues executing the mistaken operation notification without executing the failure notification at the failure occurrence time point, if the mistaken operation state has been occurring at the failure occurrence time point.