How Powertrain in the Loop is accelerating early-stage development for automotive engineering

Team LRW is seeing a trend right now for test set ups that don’t require a full prototype vehicle. That means more hardware in the loop (HiL) set ups and specifically whole vehicle or Powertrain in the loop (PiL/ViL) which enable simulation to model different environments and provide accurate diagnostic results.

HiL is a growing technology and has a global market value predicted to reach 2,230 million dollars by 2032 - according to GlobeNewswire. 

So, what is PiL and why is it such a useful engineering technology?

   

What comprises a typical PiL set up? 

Typically, a PiL set up includes the engine, transmission and drivelines. Everything else is simulated – from the accelerator pedal to the ambient conditions. This allows engineers to isolate the key components they are interested in.    

What is PiL useful for? 

PiL is particularly useful to enable front load development work before new vehicles go into production. It is particularly useful for: 

  • Early diagnostic calibration development 
  • Running emission cycles 
  • Fault simulation testing 

LRW Engineering Associates Director and Calibration and Controls Testing lead, Dr Steven Higginson, says that PiL can really accelerate early-stage validation:   

‘Powertrain in the Loop is a highly valuable tool for accelerating early-stage vehicle development. Being able to force cool the system saves a lot of time during testing and helps significantly speed up test programmes and validation.'   

Key benefits 

  • Repeatability – ability to have the same inputs or simulate different inputs consistently 
  • Calibration development can be front loaded prior to a development vehicle being required 
  • Faster results  
  • Ability to simulate worst case drive cycles or manoeuvres without the risk and expense of vehicle prototype damage 
  • Possible to simulate ambient conditions – including temperatures and pressures 

How LRW can help 

Our engineers are highly experienced in working with OEMs on proprietary PiL set ups and use their know-how to ensure the best possible project outcomes. If you need support with HiL or PiL projects, please get in touch at [email protected]. 

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