Electric Fuel Pump Test Apparatus with Fault Simulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for testing fuel pumps are limited in the number of testing factors and cannot accurately determine the root cause of fuel system issues, as they are designed for installed pumps and lack comprehensive diagnostic capabilities.
Innovation Solution
A portable apparatus that includes pressure, flow, and electrical diagnostic portions, along with a fault simulation feature, allowing for the measurement and simulation of various fuel system conditions to assess the operation and potential failures of electric fuel pumps, enabling comprehensive testing both uninstalled and in simulated faulty modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If prior art testing systems are used for installed fuel pumps, then the testing can be performed in-vehicle, but the number of testing factors is limited and root cause determination is impossible
Solution Approach 1:
The testing system is segmented into multiple independent measurement portions: pressure measurement portion, flow measurement portion, and electrical diagnostic portion. Each portion independently measures specific parameters, allowing comprehensive testing of multiple failure modes simultaneously without requiring the pump to be installed in the vehicle.
Solution Approach 2:
The test apparatus is designed as a universal testing system that can test fuel pumps under various simulated fault conditions. The fault simulation portion allows the same apparatus to create different failure scenarios (restricted flow, high pressure, electrical faults), making it adaptable to test multiple aspects of pump performance with a single device.
2Reliability
If comprehensive testing of multiple failure modes is implemented, then diagnostic accuracy improves, but device complexity increases
Solution Approach 1:
Multiple measurement functions (pressure, flow, electrical diagnostics) are merged into a single integrated test apparatus. The control system consolidates data from all measurement portions and coordinates the fault simulation portion, providing comprehensive diagnostics without requiring multiple separate testing devices.
Solution Approach 2:
The control system acts as an intermediary that coordinates between the fault simulation portion and the three measurement portions. It manages the complex interactions by sequencing operations, processing data from multiple sensors, and presenting unified diagnostic results, thereby managing system complexity through centralized control.
Data Source
AI summary
A system and method for testing the operation of fuel pump is disclosed. The apparatus includes a pressure measurement portion, a flow measurement portion, an electrical diagnostic portion, and a fault simulation portion, where a user can simulate a number of potential fuel system failures to determine the diagnostics of the fuel system. The method includes the steps of measuring an electrical value related to the fuel pump, measuring a pressure related to the fuel pump, measuring a fuel flow related to the fuel pump, simulating a fuel system failure condition, and determining an operating status of the fuel pump.