Driver Assistance Device Mode Segmentation
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Solution Overview
Problem
Current driver assistance systems in motor vehicles lack clarity and safety in operation, particularly in transitioning between different assistance modes, leading to potential driver confusion and safety risks as the level of vehicle autonomy varies from manual to full automation, with existing solutions increasing functional density and complexity without clear delimitation of operating modes.
Innovation Solution
A driver assistance device with three distinct operating devices for manual, partly automatic, and fully automatic assistance modes, where each mode has unique operating actions and positions, ensuring the driver is aware of the active mode through different device configurations and actuator-controlled positions, preventing incorrect operation and enhancing user understanding and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple assistance modes are integrated into existing operating elements, then functional density increases, but device complexity and operational clarity deteriorate
Solution Approach 1:
The patent divides the operating elements into separate, dedicated devices for each assistance mode: a first operating device for manual mode, a second operating device for partly automatic mode, and a third operating device for fully automatic mode. This segmentation prevents functional density from increasing complexity by giving each mode its own distinct interface, thereby maintaining operational clarity while preserving adaptability across modes.
2Extent of automation
If driver assistance device operates with high independence, then automation level increases, but driver awareness and safety control decrease
Solution Approach 1:
The patent implements feedback mechanisms where the driver assistance device communicates its current assistance mode and operational status to the driver through the appropriate operating device. This feedback ensures the driver remains aware of the automation level and system intentions, maintaining safety control even when the device operates with high independence in fully automatic or autonomous modes.
3Ease of operation
If assistance modes are clearly delimited with separate operating devices, then operational clarity improves, but system complexity increases
Solution Approach 1:
The patent applies universality by designing the three operating devices (steering wheel, keypad, touch-screen) to serve multiple purposes within their respective modes. For example, the steering wheel handles both manual steering and serves as the interface for partly automatic mode operations. This multi-functionality reduces the perceived complexity by using familiar, universal interfaces rather than introducing entirely new control mechanisms for each mode.
Data Source
AI summary
A motor vehicle has a driver assistance device to guide the motor vehicle in an automated manner during travel. The driver assistance device can be switched between a plurality of assistance modes. First, second and third control device differ in the actions the control. The first operating device directly drives the motor vehicle by the driver of the motor vehicle in a manual mode. The second operating device adjusts driving parameters for a partially automated assistance mode, and the third operating device serves as a user interface for the fully automated assistance mode. In a fully automated assistance mode, the driver assistance device provides independent lateral guidance and controls a wheel steering angle. In this case, an actuator adjusts a rotary position of the steering wheel to follow the wheel steering angle set by the driver assistance device.