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Fuel Cell ManufacturerQuality Inspection dept

Wanted to boost efficiency of inspection process on Fuel Cell.
Electronic load with impedance measurement capability simplifies the test.

Around the world, efforts are being made to harness the power of hydrogen, the most abundant element in the universe. Using hydrogen results in zero CO2 emissions. Fuel cell vehicles are ideal eco-cars. Fuel Cell Vehicle (FCV) are an expected market trend.

The Problem

Intricate, time-consuming high cost inspection on Fuel Cell weighs heavily upon the company.

The company O manufacturing various automotive components had technical issues in inspection process on Fuel Cell. “Complexed inspection process on Fuel Cell extended inspection time, and it tightened the company’s production schedule”, said Mr. B at the Quality Inspection Dept.

It is essential to conduct impedance measurement of a Fuel Cell on load. Impedance measurement on a battery or Fuel Cell with load is very important in order to examine the influence on its performance. Fuel Cell measurement system that the company owned consists of electronic load and digital multiple multi-meters. It was a complication work by using the system.

Each inspection procedure has each test equipment setup and test method. It requires the test equipment cost and man-hours, since the test methods changes upon the inspection. The test condition varies when measuring discharge characteristics and impedance separately. Due to this, Mr. B could not conduct reproducible test.

These circumstances urged engineers at the company to find the solution for the better test method in order to get test result with ease in a short time. In response to this demand, Mr. B collected information to solve the issues.

Key Aspects of the Problem

  • Multiple test equipment to conduct inspection for Fuel Cell leads to complexity, excessive man-hour and cost increase.

  • Measuring discharge characteristics and impedance separately made test conditions change, this caused low reproducible test.

How was this problem solved?