Dynamic Pre-Departure Display for Commercial Vehicle Instrument Cluster
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Solution Overview
Problem
Existing methods for displaying reservoir pressure, coolant temperature, and oil temperature in commercial vehicles occupy excessive space in the instrument cluster, as these parameters are not always necessary during driving and require manual retrieval by the driver, leading to inefficient information presentation.
Innovation Solution
A method and system for displaying departure control information on a digital instrument cluster, where the status of reservoir pressure, oil temperature, and coolant temperature are shown only when relevant, hiding them once setpoints are reached, allowing for a space-saving design and automatic notification to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If reservoir pressure, coolant temperature, and oil temperature are displayed permanently in the instrument cluster, then the driver has continuous access to this information, but the display occupies excessive space and cluttered the instrument cluster
Solution Approach 1:
The display system dynamically adjusts the visibility of operating parameter displays based on vehicle state. The departure control display is automatically activated when the vehicle is stationary or moving slowly (below threshold speed), and deactivated when the vehicle is in normal driving mode. This dynamic switching ensures information availability when needed while maintaining a clean display during normal operation.
Solution Approach 2:
The system periodically monitors vehicle speed and operational state to determine when to activate or deactivate the departure control display. By using periodic checking of speed thresholds and operational conditions, the system ensures that the display appears only during relevant phases (pre-departure, low-speed maneuvering) and remains hidden during normal driving, optimizing both information availability and display space utilization.
2Area of stationary object
If all operating parameters are displayed manually via menu structures, then the display space is saved, but the driver must actively search for and retrieve the information
Solution Approach 1:
The system proactively displays the departure control information before the driver needs it, based on detected vehicle state (stationary or low-speed conditions). The display automatically appears with relevant operating parameters (reservoir pressure, coolant temperature, oil temperature) already prepared and visible, eliminating the need for the driver to manually navigate menus to find this information during critical pre-departure phases.
Solution Approach 2:
The system continuously monitors vehicle speed and operational state, providing feedback that triggers automatic display activation or deactivation. When the vehicle is stationary or moving slowly, the feedback mechanism activates the departure control display, ensuring information is readily available. When normal driving conditions are detected, the display is deactivated, maintaining a clean interface without requiring manual intervention from the driver.
3Productivity
If the instrument cluster is designed with limited display space, then the overall vehicle design is optimized, but fewer functions and information can be displayed simultaneously
Solution Approach 1:
The instrument cluster employs dynamic display management where the departure control display is superimposed on top of the normal instrument cluster display only when needed (vehicle stationary or low-speed). This layered, dynamic approach allows the limited display space to serve multiple functions: normal driving information during operation, and departure-specific information when required, effectively increasing the versatility of the limited display area without requiring additional physical space.
Solution Approach 2:
The system utilizes the temporal dimension to resolve space constraints. By activating the departure control display only during specific time periods (pre-departure, low-speed maneuvering) and deactivating it during normal driving, the system effectively adds a time-based dimension to the display management. This allows the same physical display space to accommodate multiple functions at different times, maximizing both space utilization efficiency and functional versatility.
Data Source
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AI summary
The invention relates to a method and a system for the pre-departure check of a motor vehicle, in particular a commercial vehicle. The system (1) for the pre-departure check of a motor vehicle comprises a display device with a display surface, a sensor device (3) configured to detect the state of at least one supply pressure of a compressed air circuit, one oil temperature, and one coolant temperature of the motor vehicle; and a control device (2) coupled to the display device and the sensor device (3) and with which a display on the display surface can be controlled. The control device is configured to control the display device such that a pre-departure check indicator (10) is displayed on the display surface before the motor vehicle departs.The pre-departure control display includes status indicators (13, 14, 15) for at least the supply pressure of a compressed air circuit, the oil temperature, and the coolant temperature of the vehicle. The supply pressure status indicator within the pre-departure control display is hidden once the supply pressure reaches a setpoint value. Furthermore, the pre-departure control display (10) is hidden after the vehicle has departed if at least the oil temperature and the coolant temperature have exceeded their respective setpoint values.