Central Fuel Coordination Device for Engine Fuel Selection
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Solution Overview
Problem
Existing drive systems for motor vehicles with internal combustion engines face challenges in selecting the most suitable fuel type efficiently and cost-effectively, as fuel type requirements are typically managed in a decentralized manner, leading to complex communication between engine control units and fuel-relevant functions.
Innovation Solution
A method involving a central fuel coordination device that queries operating parameters of fuel-relevant functions, determines compatible fuel types, selects the most suitable fuel based on predefined criteria, and transmits this information to the engine control unit for optimized operation, eliminating the need for direct communication links between the engine control unit and individual fuel-relevant functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a decentralized fuel type requirement management is implemented in fuel-relevant functions, then each function can independently determine its fuel requirements, but the communication complexity between engine control unit and fuel-relevant functions increases
Solution Approach 1:
The patent introduces a central fuel coordination device as an intermediary between the engine control unit and multiple fuel-relevant functions. This mediator collects fuel type requirements from various functions (injection system, ignition system, exhaust system, etc.), evaluates them centrally, and determines the overall fuel type selection. This eliminates the need for complex direct communication links between the engine control unit and each individual fuel-relevant function, thereby reducing communication complexity while maintaining adaptability.
2Adaptability or versatility
If multiple separate feed devices for different fuel types are provided, then the engine can operate with various fuel types, but the device complexity and cost increase
Solution Approach 1:
The patent implements a universal feed device structure that can handle multiple fuel types (liquid fuel, gaseous fuel, alternative fuels) through a single integrated system. The central fuel coordination device manages the operation of injection valves and gas valves to accommodate different fuel types, eliminating the need for completely separate feed devices for each fuel type. This multi-functional approach reduces device complexity and cost while maintaining fuel type compatibility.
3Extent of automation
If a central engine control unit directly communicates with all fuel-relevant functions, then comprehensive control is achieved, but the communication interface requirements and system complexity increase
Solution Approach 1:
The central fuel coordination device serves as an intermediary layer between the engine control unit and fuel-relevant functions. It receives operational data from these functions, determines fuel type requirements, and communicates with the engine control unit using a standardized interface. This intermediary structure automates the fuel selection process while reducing the software interface complexity that would otherwise be required for direct communication between the engine control unit and all fuel-relevant functions.
Data Source
AI summary
A method for operating an internal combustion engine of a drive system for a motor vehicle, the internal combustion engine being designed for operation using various types of fuel, has the following steps: querying operating parameters of fuel-relevant functions of the drive system by means of a central fuel coordination device of a central engine coordination device, determining possible types of fuel for operating the internal combustion engine, based on the queried operating parameters and predefined fuel release conditions, by means of the central fuel coordination device, selecting a type of fuel for operating the internal combustion engine, based on the determined possible types of fuel and at least one predefined selection criterion, by means of the central fuel coordination device, transmitting information identifying the selected type of fuel from the central fuel coordination device to a central engine control unit of the central engine coordination device, and operating the internal combustion engine with the selected type of fuel by means of the central engine control unit.