Dynamic Fuel Optimization System for Cold Weather Biodiesel Gelation
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Solution Overview
Problem
Current vehicle fuel systems are not adaptable to varying fuel grades and do not automatically optimize engine conditions based on the specific fuel characteristics, leading to inefficiencies and operational issues, especially with biofuels that can gel in cold temperatures, causing hard starts and filter clogging.
Innovation Solution
A system that automatically or manually configures fuel system parameters to operate on blends of traditional and alternative fuels from 0-100%, using real-time communication of fuel properties to adjust engine operating conditions, optimizing combustion parameters for improved performance, efficiency, and reduced emissions, and is compatible with various fuels including biodiesel, vegetable oil, and ethanol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle operates on 100% biodiesel in cold temperatures, then renewable fuel utilization is maximized, but the fuel gels causing hard starts and filter clogging
Solution Approach 1:
The system dynamically adjusts the fuel blend ratio based on ambient temperature conditions. At lower temperatures, the controller automatically increases the proportion of traditional diesel fuel in the blend to prevent gelation, while at higher temperatures it increases biodiesel content to maximize renewable fuel utilization. This dynamic adjustment resolves the contradiction between renewable fuel utilization and cold weather operability.
Solution Approach 2:
The system changes the compositional parameter of the fuel blend by varying the ratio of biodiesel to traditional diesel fuel. The controller modifies this parameter in response to temperature conditions, allowing the fuel properties to adapt to environmental conditions and preventing gelation in cold weather while maintaining high renewable fuel usage in warmer conditions.
2Reliability
If the vehicle switches between diesel and renewable fuel in an 'either or' situation, then cold weather performance is maintained, but fuel system adaptability to varying fuel grades is limited
Solution Approach 1:
The fuel system is designed to universally accommodate multiple fuel types and blend ratios (from pure diesel to 100% biodiesel and various intermediate blends). The electronic control system automatically adjusts engine parameters to optimize performance across all fuel compositions, making the system multi-functional rather than limited to single-fuel operation. This resolves the contradiction by enabling both cold weather performance and broad fuel adaptability simultaneously.
Solution Approach 2:
The system transitions from static single-fuel operation to dynamic multi-fuel operation. The controller continuously monitors fuel properties and temperature conditions, then dynamically adjusts injection timing, fuel rail pressure, and air-fuel ratio to optimize combustion for the current fuel blend. This dynamic adaptation enables the system to maintain reliability across varying fuel grades while maximizing adaptability.
3Reliability
If the fuel system components are isolated to prevent cross contamination, then fuel purity is maintained, but system complexity increases
Solution Approach 1:
The system merges the traditional diesel fuel system and the renewable fuel system into a single integrated fuel delivery system. Instead of maintaining separate isolated systems, the patent combines the fuel tanks, fuel lines, and injection system into one unified system that can handle multiple fuel types. A single fuel selector valve replaces multiple isolated systems, reducing overall complexity while maintaining fuel purity through electronic control and proper sequencing of fuel delivery.
Data Source
AI summary
Present invention optimizes utilization of different fuels in various single and multi-fueled engines. The fuel system and optimization controller links fuel properties (physical, reactionary, combustion etc.) to on-board computer systems during the refueling process. This link enables fuel and additive producers an opportunity to optimize combustion parameters of their proprietary fuel blends to increase performance, fuel efficiencies and reduce emissions.