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Electric car and testers

Why do autonomous vehicles need to be tested?

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Advanced driver-assistance systems (ADAS) are systems developed to automate or enhance vehicle systems for safety and better driving. ADAS features are designed to avoid collisions and accidents by offering technologies that alert the driver to potential problems, or to avoid collisions by implementing safeguards and taking over control of the vehicle. ADAS relies on inputs from multiple data sources, including automotive imaging, LiDAR, Radar, Image Processing, and in-car networking or connected car infotainment.

In-car networks provide more infotainment options for increased safety and connectivity. Autonomous vehicles use vehicle to vehicle communication and Vehicle to Infrastructure communication (V2X) to operate the vehicles safely on the road. So the V2X communication should work all the time and all possible scenarios. Testing and ensuring that the devices meet the standard specifications and requirements and time to market is the key for automobile manufacturers.


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Mechanical part of a car

Why does the PowerTrain of a car have to be tested?

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Electric vehicle (EV) powertrain components and systems are rapidly evolving. To keep up with the rapid pace of innovation, automotive companies need a step-function shift in the testing methodologies they use for automotive and subsystems—especially in electric powertrains that include batteries, inverters, and motors. Software-centric solutions streamline data and analytics across development stages and yield the quickest, highest quality production possible.


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Testers with a Battery Cell

Why do test engineers need to test Battery Cells?

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Manufacturing of safe, reliable, and top-performing electric vehicle (EV) batteries demands rigorous testing of the hundreds of battery cells and modules. With the growing consumer demand for EVs, battery manufacturers and OEMs are pressured to accelerate production—without sacrificing precision, repeatability, and traceability. To minimize the risk of failure and damaging recalls, EV test engineers need to:

  • Perform different tests like weld integrity, open-circuit voltage (OCV), and AC internal resistance (AC-IR) during assembly and finishing of battery cells and modules
  • Shorten test times to meet production volume with zero compromises on test precision and quality
  • Precisely control test probes at high speed to make measurements on test cells and modules
  • Make extremely precise measurements at high speed for high channel counts and long test runs
  • Use their test data to drive insights that help them continuously improve the test process


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Battery Management System

The Battery Management System (BMS)

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Our BMS HIL Test solution is based on scalable and software defined PXI architecture powered by LabVIEW and Veristand software. The test system
emulates the battery cells in real-time environment, fault simulations, temperature simulations, isolation resistance simulation and communication
interfaces.

Our BMS test system allows testing on cell level with high precision. The electrical emulation of virtual cells ensures safe, repeatable and complete automated testing of BMS.


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Electric car charging

Why is Electric Vehicle (EV) Testing important?

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Perhaps the most pivotal component of an EV is its battery. Automakers aren’t just on a sprint to meet their EV targets; they’re also competing to see who can produce the safest and highest performing battery. Afterall, vehicle recalls due to fire hazards have significant ramifications, both in terms of cost and consumer trust. Manufacturers want to claim their batteries have the longest range and can be charged the fastest. Of course, the only way to truthfully make such claims is with data derived from extensive testing.


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Woman Testing a Battery

Why should Battery Packs be tested?

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The electric vehicle (EV) battery pack—the single most costly EV component—also has the largest impact on performance (size, weight, acceleration, range, charge time, and vehicle life) so getting it right is critical to EV program success.

  • Battery performance is highly temperature-dependent—thermal validation requires test in thermal chambers across operational temperature ranges.
  • Battery performance degrades over time, and longevity testing is difficult to accelerate.
  • EV battery packs are high-power devices requiring large, expensive battery cyclers to provide operational power levels during test.
  • Rapidly evolving technology means constantly changing test requirements and managing a library of test equipment for a varied mix of battery designs.


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VeriStand

Why use VeriStand?

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VeriStand is software for real-time test applications, such as stimulus generation, data acquisition, and calculated channels and custom channel scaling.


What is VeriStand?


VeriStand application software helps you configure I/O channels, data logging, stimulus generation, and host communication for NI real-time hardware. You can also import simulation models and control algorithms, respond to events with configurable alarms, and enable test automation with macro recording, TestStand, .NET, and other software. You can interact with and monitor application data, alarm states, and system execution metrics using a run-time editable user interface. Although you don’t need programming knowledge, you can also use a variety of software environments such as LabVIEW, ANSI C/C++, Python, and ASAM XIL to add custom functionality to VeriStand.


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TestStand

How can TestStand help testers?

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TestStand is a test executive software that accelerates system development and deployment for engineers in validation and production.


Validation & Production Test Automation


TestStand automates, accelerates, and standardizes the overall test process across all of your testers with native functionality for:

  • Calling and executing tests written in LabVIEW, Python, C/C++, or .NET
  • Complex tasks, such as parallel testing, sweeping, looping, and synchronization
  • Creating custom operator interfaces and robust tools for deployment and debugging
  • Unit tracking, creating automated reports, and storing results to local or network databases


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HIL

Hardware-in-Loop Testing

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This article tells about the various componet in the HIL test rack.


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LabVIEW Real-Time Testing

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This aritcle is about how we should do LabVIEW Real Time Testing for time critical applications.


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