Motor Power Simulating Apparatus for Fuel Cell Evaluation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for evaluating fuel cell power modules require large, expensive equipment and separate facilities, making it cost-prohibitive for mass-produced fuel cell modules.
Innovation Solution
A motor power simulating apparatus that includes a ripple current generator and an electronic load device, which simulates vehicle conditions by generating ripple current using a variable resistor, eliminating the need for a separate testing facility and costly equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional fuel cell system power evaluators with motor dynamometer are used, then accurate power evaluation can be achieved, but large facility size and high equipment cost are required
Solution Approach 1:
The patent uses an electronic load device to create an electrical copy of the motor's electrical characteristics, replacing the need for a physical motor dynamometer. The electronic load simulates the motor's variable resistance behavior during vehicle operation, allowing accurate power evaluation without requiring actual motor hardware or large testing facilities.
Solution Approach 2:
The patent replaces the mechanical motor dynamometer system with an electrical evaluation system. Instead of mechanically coupling the fuel cell to a motor dynamometer, the invention directly connects the fuel cell to an electronic load device that electronically simulates motor operation, substituting mechanical measurement with electrical measurement.
2Adaptability or versatility
If motor dynamometer testing is used for fuel cell evaluation, then vehicle-state simulation is achieved, but separate large testing facilities are required
Solution Approach 1:
The electronic load device serves multiple functions: it simulates motor electrical characteristics, applies variable loading conditions, and evaluates fuel cell performance all in one device. This multi-functional approach eliminates the need for separate testing facilities while maintaining vehicle-state simulation capability.
Solution Approach 2:
The electronic load device acts as an intermediary between the fuel cell and the evaluation system. It mediates the connection by simulating the motor's electrical behavior, allowing the fuel cell to be evaluated under vehicle-like conditions without direct connection to actual motor hardware or complex mechanical testing equipment.
3Measurement precision
If mass-produced fuel cell modules are evaluated using conventional methods, then power assessment is performed, but evaluation cost becomes prohibitive
Solution Approach 1:
The patent replaces expensive, durable motor dynamometer equipment with a more affordable electronic load device. While electronic loads may have shorter operational lifetimes compared to robust motor dynamometers, their lower cost makes them economically viable for evaluating mass-produced fuel cell modules, especially when combined with the ability to perform multiple evaluation cycles.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate evaluation of fuel cell power modules under real-world vehicle conditions, reducing evaluation costs and facilitating reliable assessment of fuel cell vehicle durability and performance.
Implementation Method 1
a ripple current generator connected to the fuel cell power module to generate ripple current when the fuel cell power module generates power
Implementation Method 2
The ripple current generator may include a variable resistor that may changes while having a predetermined frequency, or a frequency in a white noise form, at a positive (+) terminal of an output line coming from the fuel cell power module so as to simulate ripple current generated in a vehicle.
Implementation Method 3
A fuel cell is a power generator that converts chemical energy directly into electric energy by an electrochemical reaction between hydrogen contained in a hydrocarbon-based material (e.g., methanol, natural gas, etc.) and oxygen contained in the air.
Data Source
AI summary
Disclosed is a motor power simulating apparatus for fuel cell power module evaluation that accurately reflects real world characteristics of a fuel cell vehicle. More particularly, the power simulating apparatus disclosed herein includes a fuel cell power module, a ripple current generator, and an electronic load device, the ripple current generator connected to the fuel cell power module and the electronic load device to accurately simulate power output from a fuel cell of a fuel cell vehicle under real world conditions.