Variable Compression Ratio Technology
15401
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Variable Compression Ratio Technology

Variable Compression Ratio Technology

A 4-Hour Class

Variable Compression Ratio (VCR) technology relies on the ability to adjust the compression ratio of the internal combustion engine while the engine is in operation to increase fuel efficiency (minimize fuel consumption and maximize power production) even while under varying loads.  Although it has been researched for many years, several technical hurdles have challenged its widespread commercial application.  However new advances particularly in valve timing and motion control have allowed for production level implementation, thus it is an important technology to understand.  This course covers the basic theory and operation of VCR, modern approaches to VCR systems, advances in VCR controls, and the benefits and practical results of VCR systems. 

 

Learning Objectives 

By completing this course, you will be able to identify, recognize or articulate: 

  • Theoretical improvements to engine system performance and efficiency as a function of thermal and thermodynamic control 
  • Historical mechanisms to implement VCR technology 
  • Modern approaches to VCR systems and emerging technologies in VCR operation 
  • Practical results that have significantly improve operational efficiencies 
  • Fundamental science and implementation technology of engines equipped with Variable Compression Ratio and Direct Fuel Injection systems 
  • The mechanism by which VCR can improve system performance 
  • The contribution VCR can make to the overall system operation in a modern internal combustion engine 

 

Who Should Attend 

The intended audience for this course is powertrain engineers, component suppliers, vehicle platform powertrain development specialists, and those involved in the application, design and discussion of engines.  

 

Prerequisites 

Learners should have an undergraduate engineering degree and ideally a basic understanding of internal combustion engines. 

 

Topics 

  • Definition of basic problems associated with fixed compression ratio engines 
  • Variable Compression Ratio (VCR) engine design 
  • Theoretical improvements to engine system performance and efficiency 
  • Historical mechanisms to implement VCR systems 
  • Modern approaches to VCR systems 
  • Adaption of the Engine Control Module (ECM) to optimize VCR operation 
  • Theoretical benefits and practical results