Vehicle Speed Control Display for Curve-to-Cruise Transition
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Solution Overview
Problem
Conventional vehicle control devices fail to effectively inform drivers when transitioning from speed management control to cruise control, potentially causing driver confusion and unnecessary acceleration-deceleration operations, especially when the cruise control condition is satisfied at the end of a curve section.
Innovation Solution
A vehicle control device that displays a distinct mode for speed management control and seamlessly transitions to cruise control, using sensors and actuators to manage vehicle speed and acceleration, ensuring the driver is not misled into performing unnecessary operations by adjusting the display element's mode based on cruise control execution conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the display element is displayed in a different mode (blinking/flickering) to inform the driver that the vehicle will start to be accelerated due to end of speed management control, then the driver is informed about the upcoming acceleration, but the display element may annoy the driver and cause erroneous notice that the driver has to perform acceleration-deceleration operation when cruise control execution condition is satisfied
Solution Approach 1:
The system continuously monitors the cruise control execution condition and uses this feedback to dynamically adjust the display element's behavior. When the cruise control execution condition is satisfied at the control end time point, the system suppresses the blinking display. When it is not satisfied, the system activates the blinking display to alert the driver. This feedback mechanism ensures the display provides accurate information without causing confusion.
Solution Approach 2:
The display element's mode is made dynamic rather than static. The system transitions between different display modes (normal display vs. blinking display) based on real-time conditions. Specifically, the display element switches to blinking mode only when the cruise control execution condition is not satisfied at the control end time point, creating a dynamic response that adapts to the vehicle's control state.
2Stability of the object's composition
If the vehicle transitions from speed management control to cruise control at the end of curve section, then the vehicle can maintain stable acceleration, but the driver may not notice the transition and perform unnecessary acceleration-deceleration operations
Solution Approach 1:
The system determines the control end time point in advance (when the vehicle reaches the control end position) and checks the cruise control execution condition at this specific moment. Based on this preliminary assessment, the system prepares the appropriate display action (blinking or non-blinking) to inform the driver before the actual control transition occurs, ensuring the driver is aware of the upcoming change.
Solution Approach 2:
The system uses feedback from the cruise control execution condition check at the control end time point to determine whether to activate the blinking display element. This feedback loop ensures that the display provides accurate information about the control transition status, helping the driver understand whether the vehicle will automatically accelerate (cruise control active) or require manual input (cruise control inactive).
Data Source
AI summary
A vehicle control device executes a cruise control to let a vehicle travel in such a manner that an acceleration is equal to a predetermined acceleration, when an execution condition becomes satisfied, and starts a vehicle speed upper limit control to let the vehicle travel in such a manner that the vehicle speed does not exceed an upper limit value determined based on a shape of a curve section, when a start condition becomes satisfied. The vehicle control device starts displaying a display element in a first display mode, when the vehicle speed upper limit control is started. At a time point at which the vehicle speed upper limit control is ended, the vehicle control device starts displaying the display element in a second display mode different from the first display mode if the execution condition is not satisfied.