Although engines, batteries, and transmissions have proven to be key elements of an electric car, developments in the tyre industry have revolutionized road transport EVs. Although conventional internal combustion engines have strict specifications for their tyres, EVs come with a different set of standards.
Where, as a rule, the automotive engines block traffic-noise, the road noise from electric cars tend to be more apparent as it lacks a noisy combustion engine. Furthermore, the use of batteries in EVs continues to raise the total weight of the vehicle by about 20%, which in turn raises the need for tyres.
With all these obstacles at hand, it has become important for manufacturers to produce tyres with an acceptable noise level to satisfy the requirements. This is the case with the HASETRI center, independent research, and development facility that works extensively on developing elastomers and tyres for electric vehicles.
To deal with noise, friction, harshness, and other tyre-related problems, the testing lab performs numerous experiments, such as NVH-based tests, speed-sweep experiments, as well as modal checks on tyres, and other associated industrial products. To make the process smoother, HASETRI has partnered with Siemens to exploit their automated software testing tools, which not only minimize the time needed but also extend the domains during the inspection process.
How Does It work?
To enhance this process, HASETRI leveraged Siemens’ digital business software solutions—Simcenter Testlab software, an advanced system used for testing-based engineering. This tech system is then paired with high-speed multi-physics data collection, equipped with research, artificial intelligence, analytics, and simulation capabilities for different test needs.
To build an acceptable tyre for their electric vehicles, it was important to test the acoustic properties of tyreic materials and prototypes. The solution not only carried out elimination, innovation, and quality-related experiments to increase noise level measurements at a constant speed and speed-sweep testing on tyres, but also helped to conduct modal experiments on tyres and other similar industrial components.
The solution — Simcenter Testlab — contains modules for acoustic monitoring, coating devices, structural mechanics, vibration management, and reliability testing, which facilitates the design of test channel configuration, calculation analysis, and distribution of data. It only functions with the Simcenter SCADAS adware of Siemens to acquire model info.
Alongside the rising degree of regularity of electric cars, control of new drives, noise measures, fuel principles, tightened environmental requirements, growing vehicle classes and rising diversification have been a concern for engineers. As a result, precise and consistent reports of crucial NVH tests on specified test tracks across India have become obligatory.
With the incentive to boost the efficiency of electric cars, the market for end-of-line NVH tests for produced goods is rising rapidly. It remains vital to prototype, verify and refine real-world designs under the limitations of shorter development times, overlapping performance criteria, increasing product flexibility and lower costs. With the right software testing portfolio of Siemens, HASETRI has managed to build a versatile and scalable research system for the automated multidisciplinary evaluation of its electric vehicles.