Motorcycle Driver Assistance Switching Dynamics
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Solution Overview
Problem
Current systems for switching between adaptive distance and speed control (ACC) and cruise control functions on motorcycles are either cumbersome or risk misinterpretation by the rider, particularly at high speeds, as they often require additional steps or inadequate user feedback.
Innovation Solution
Implementing a method where the driver switches from one function to another by maintaining uninterrupted actuation of a push-button switch for a predefined time interval, ensuring deliberate action and minimizing additional operating elements, with the same switch used for both functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional operating elements or steps are added to switch between functions, then function switching becomes more reliable and deliberate, but device complexity and ease of operation deteriorate
Solution Approach 1:
The system dynamically changes the activation behavior of the single push-button switch based on the current operational state. When ACC is active, a first actuation pattern activates cruise control. When cruise control is active, a second actuation pattern reactivates ACC. This dynamic state-dependent behavior allows one element to reliably control multiple functions without additional physical components.
Solution Approach 2:
The single push-button switch is designed to perform multiple functions: it can activate cruise control from ACC mode, reactivate ACC from cruise control mode, and maintain current function with repeated actuations. This multi-functionality eliminates the need for separate switches or controls for different driving modes, reducing device complexity while maintaining reliable function switching.
2Reliability
If additional operating steps are required for function switching, then deliberate action is ensured, but ease of operation and response time worsen
Solution Approach 1:
The system employs dynamic actuation patterns that adapt to the current function state. The control unit recognizes whether the rider intends to switch functions or maintain the current function based on the timing and pattern of push-button actuations. This dynamic interpretation allows deliberate function switching with simple repeated actuations while preventing accidental activations.
Solution Approach 2:
The system uses periodic actuation of the push-button switch to differentiate between function switching and function maintenance. Repeated actuations within a predetermined time interval signal intent to maintain the current function, while specific actuation patterns signal intent to switch. This periodic action mechanism ensures deliberate switching without requiring complex multi-step procedures.
3Device complexity
If the same push-button switch is used for both functions, then device complexity is reduced, but reliability and user feedback clarity may worsen
Solution Approach 1:
The system provides clear feedback to the rider about the current operational state through the instrument cluster display. When cruise control is active, the display shows appropriate indicators. When ACC is active, different indicators are shown. This visual feedback mechanism ensures that despite using a single push-button switch, the rider always knows which function is currently active, maintaining reliability and clarity.
Solution Approach 2:
The push-button switch exhibits different functional behaviors depending on the current system state. When ACC is active, the switch activates cruise control. When cruise control is active, the same switch reactives ACC. This dynamic state-dependent functionality, combined with visual feedback, allows one physical element to clearly and reliably control multiple functions without confusion.
Data Source
AI summary
A method for switching over from a first driver assistance function to a second driver assistance function in a two-wheeled vehicle; one of the driver assistance functions being an adaptive distance and speed control function, and the other driver assistance function being a cruise control function; the switchover being accomplished by uninterrupted manipulation of an actuating element by the driver over a time interval of predefined length.