Introduction
Gotion is an American company with branches in Japan, Singapore and China that aims to create the next generation of environmentally friendly battery packs for electric vehicles. The reliability of these battery packs is directly related to vehicle safety. Gotion uses vibration controllers for testing the durability of battery products and auto parts. They require software with convenient and simple interface, able to perform a large array of tasks.
Requirements
Gotion's representatives in China contacted RULA's Eastern department and requested a controller that:
- allows the user to quickly setup tests and easily switch between tasks and test types;
- has a built-in charge amplifier;
- is not too complex to operate and master.
Solutions
The test setup wizard and user-friendly interface of RULA controllers guided Gotion's engineers through test settings. RULA also has a number of computing functions: it can automatically calculate intersection point, Sine, maximum profile, and amplitude or frequency based on slope, which allowed the company to quickly edit the profile.
RULA controllers have a built-in charge amplifier, that makes it possible to connect a charge acceleration sensor without external equipment.
RULA Software
RULA software has a Demo mode, which allowed the Gotion staff to evaluate and edit test conditions in their office without connecting hardware onsite. Using the Demo mode, Gotion calculated the RMS value, maximum acceleration, velocity and displacement, chose a shaker that would satisfy the test requirements from the Shaker database and saved the test file in a ready-to-use format.
Results
Using RULA controllers and VisProbe software, Gotion engineers performed the following three tests:
- 1A 10 Hz - 1000 Hz sweep frequency and resonance search test
- Cyclic sweep frequency: Long time durability test
- Random test: Long time durability test
