Control Device Function Allocation Across Engine Overrun Phases
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Solution Overview
Problem
Existing methods for calibrating pre-injection quantities in internal combustion engines fail to account for drift over the service life of components, leading to inefficiencies and potential non-compliance with legal requirements during different operating phases.
Innovation Solution
A method involving an allocation plan that allocates multiple functions during various operating phases, including a drive phase and an overrun phase, ensuring compliance with legal requirements by distributing functions uniformly and allowing for partial or incomplete processing when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple functions are allocated during overrun phase, then functional completeness and legal compliance are improved, but processing time and operational complexity increase
Solution Approach 1:
The allocation plan is created in advance, determining the sequence and timing of function allocations during overrun phases. This preliminary planning ensures that multiple functions can be systematically executed without ad-hoc decision-making, improving compliance while managing time consumption through pre-defined schedules.
Solution Approach 2:
Functions are allocated periodically during overrun phases according to the allocation plan, which specifies when each function should be executed. This periodic approach ensures comprehensive functional coverage over time while distributing the processing load across multiple overrun phases rather than concentrating it in a single phase.
2Reliability
If allocation plan is fully processed, then functional completeness is improved, but operational flexibility and responsiveness decrease
Solution Approach 1:
The allocation plan is designed to be dynamically adaptable to different overrun phase durations. The control device can adjust the processing strategy based on whether the overrun phase is long, medium, or short, allowing the system to maintain functional completeness while adapting to varying operational conditions and time constraints.
Solution Approach 2:
The system accepts that in short overrun phases, only partial processing of the allocation plan is feasible. Rather than requiring complete processing in all cases, the system allows for partial execution when time is limited, maintaining flexibility while still achieving some functional objectives during each overrun phase.
3Reliability
If functions are allocated in predetermined sequence, then predictability and compliance are improved, but responsiveness to varying phase lengths deteriorate
Solution Approach 1:
While the allocation plan specifies a predetermined sequence for consistency and compliance, the system dynamically adjusts which functions are actually executed based on the measured duration of the overrun phase. This dynamic adaptation allows the system to maintain predictability in its decision-making process while being responsive to varying phase lengths.
Solution Approach 2:
The system changes operational parameters based on overrun phase characteristics. By categorizing overrun phases as long, medium, or short and applying different processing strategies to each category, the system maintains a predetermined allocation sequence while adapting its execution behavior to match the specific duration and conditions of each phase.
Data Source
AI summary
A method for operating a device, with one operating phase and with another operating phase, wherein during the other operating phase of the device it is provided to allocate a function for an execution. An allocation of at least three different functions is carried out according to an allocation plan.