Fuel Cell Vehicle Testing System Using Power Simulator
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Solution Overview
Problem
Conventional fuel cell powered vehicle testing systems face safety and logistical challenges due to the need for high-pressure hydrogen tanks and are difficult to replicate tests under consistent conditions, affecting reliability and efficiency.
Innovation Solution
A fuel cell powered vehicle testing system that uses a dynamometer and a supply power simulator to apply simulation loads and power to an electric motor, eliminating the need for an actual fuel cell and hydrogen tank, allowing for safer and more reliable testing with a simpler setup, and includes a main control device to manage power distribution based on accelerator and brake data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an actual fuel cell and high-pressure hydrogen tank are used for testing, then the power system can be evaluated with real operational characteristics, but safety risks increase and facility complexity grows
Solution Approach 1:
The patent uses a simulation fuel cell that replicates the electrical output characteristics of an actual fuel cell without containing hydrogen storage components. This copy provides the same testing functionality while eliminating the safety hazards associated with high-pressure hydrogen tanks and real fuel cell operations.
2Reliability
If an actual fuel cell is used for testing, then real power supply characteristics can be obtained, but test consistency decreases due to environmental variations
Solution Approach 1:
The simulation fuel cell is designed to provide stable, repeatable electrical characteristics that mimic real fuel cell behavior. By using a simulated rather than actual fuel cell, the system eliminates environmental variables such as temperature, humidity, and hydrogen pressure that cause test condition variations, thereby improving test consistency while maintaining accuracy.
3Reliability
If an actual fuel cell system is used for testing, then complete power system evaluation is possible, but facility scale and setup time increase
Solution Approach 1:
The patent extracts only the necessary electrical power supply function from the complete fuel cell system by using a simulation fuel cell. This eliminates the need for high-pressure hydrogen tanks, complex fuel cell stacks, and associated safety infrastructure, thereby reducing facility complexity and setup time while maintaining the ability to evaluate power system performance.
Data Source
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AI summary
In order to provide a fuel cell powered vehicle testing system capable of performing a test of a power system of a fuel cell powered vehicle by a simpler facility, includes: a dynamometer which is connected to an output shaft of an electric motor mounted on a fuel cell powered vehicle for applying a simulation travelling load to the electric motor; and a supply power simulator adapted to simulate an operation of the fuel cell mounted on the fuel cell powered vehicle and to apply power to the electric motor, the power being to be supplied from the fuel cell to the electric motor.