Vehicle Function Coordination via Central Activation State Control
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Solution Overview
Problem
The increasing number of customer vehicle functions in motor vehicles leads to significant complexity in coordinating these functions, particularly for safety-relevant systems, requiring more time and complicating decentralized implementations.
Innovation Solution
A central vehicle control system with an evaluation unit coordinates and controls multiple vehicle functions by determining activation states for inactive and active functions using a selection routine, preventing conflicts through predefined transition scenarios and dynamic updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If decentralized coordination of customer vehicle functions is used, then each function can operate independently with its own control logic, but the complexity of coordinating multiple functions increases significantly
Solution Approach 1:
The patent introduces a central vehicle control unit as an intermediary between multiple customer vehicle functions. This central unit receives activation requests from various functions, determines appropriate activation states using a selection routine, and coordinates their execution. This mediator approach maintains the independence of individual functions while centralizing the coordination logic to manage complexity.
2Adaptability or versatility
If the number of customer vehicle functions is increased, then more comprehensive vehicle capabilities are provided, but the time required for coordination and safety checks increases
Solution Approach 1:
The patent implements a selection routine that is pre-configured with coordination logic and activation state determination rules. When multiple customer vehicle functions request activation, the central vehicle control unit quickly determines appropriate activation states by applying this pre-established selection routine, rather than performing complex real-time analysis. This preliminary preparation of coordination logic reduces the time required for managing multiple functions.
3Ease of manufacture
If decentralized control logic is used for each customer vehicle function, then each function can be optimized independently, but safety coordination between functions becomes more difficult
Solution Approach 1:
The central vehicle control unit serves as a safety mediator that receives activation requests from independently optimized customer vehicle functions. It applies a selection routine that considers safety-relevant interactions between functions, determines appropriate activation states, and coordinates their execution. This ensures that while individual functions can be independently optimized, their combined operation maintains safety through centralized oversight.
Data Source
AI summary
A control system for a motor vehicle for coordinating and carrying out customer vehicle functions and to a method for operating such a control system. The control system may include a central vehicle regulator for actuating vehicle functions and multiple customer vehicle functions which are designed to transmit activation request relating to the vehicle functions and corresponding control commands for the respective customer functions to the analysis unit of the vehicle regulator. When a currently inactive customer vehicle function transmits an activation request, the analysis unit may determine which specified activation state is assigned to said customer vehicle function according to a specified selection routine. In response thereto, the assigned activation states are transmitted to actuate the vehicle functions of the motor vehicle according to the respective control commands of the corresponding customer vehicle functions.