Commercial Vehicle Solutions

Electronic Air Processing Units

Engineered for optimized performance with less energy consumption​

Key Facts

Fuel Efficiency

Up to 2% fuel saving when used with c-comp clutch compressor

Flexible Solution

Design adapts to wide range of vehicles and applications

Quieter Operation

Reduced noise levels enhance driver comfort

Proven Technology

More than one million units on the road worldwide

What can Electronic Air Processing Units provide?

Air processing solutions dry, clean, store and distribute the compressed air to enable proper system operation under all conditions. Electronic Air Processing Units (E-APUs) and Electronically Controlled Air Processing Units (EC-APUs) deliver extra fuel savings thanks to intelligent air compressor control.​

Details

FuelGuard Electronic Air Processing Unit​

Features & Capabilities:​
  • Improved electronic APU incorporating air dryer, multi-circuit protection valve, pressure sensors and control functions for power reduction, clutch and electrically driven compressors​
  • Connected via CAN-bus to the vehicle's electronic architecture to enable on-demand and optimized compressor control adapted to driving situations​
  • Supports a wide range of vehicle types and applications thanks to its modular design, small size, low weight and rich set of options​
  • Supports optional features such as air leakage detection and cartridge service interval indication​

FuelGuard Electronic Air Processing Unit​

Customer Benefits: ​
  • Enables optimized usage of available kinetic energy during engine “overrun” phase to fill up air reservoirs​
  • Enables significant fuel savings when used in combination with ZF's c-comp compressor technology or compressors equipped with an OPR system (Optimized Power Reduction)​
  • Cost efficient design automatically adapting to a variety of compressor and air reservoir sizes​
  • Enables reduced noise and enhanced driver comfort

EC-CAPU Electronically Controlled Compact Air Processing Unit

Features & Innovations:​​
  • Comes as a redesign with full System Saver / electronic APU functionality to meet the space requirements of modern vehicle platforms​
  • Integrates air dryer equipped with two solenoids and a multiple circuit protection valve (MCPV) in a very compact and cost-efficient design ​​
  • Integrates ZF fuel saving software in any external ECU ​​
  • Offers variable port count on circuits 3 and 4 to reduce required piping​
  • Optionally provides double pressure sensor, pressure limiting valve, and/or electric heater

EC-CAPU Electronically Controlled Compact Air Processing Unit

Customer Benefits:​​
  • Requires less mounting space ​
  • Offers increased mounting flexibility​
  • Optimal compressor control enables the utilization of even the shortest possible overrun phases to further maximize fuel efficiency​
  • Can maximize available engine power during acceleration and uphill driving
  • No extra ECU required for air management, reduces system cost ​​
  • Provides demand-driven regeneration control for superior air drying performance​ and fuel efficiency ​

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