Smart Combustion Technology

Electronic Computing Unit


The CPBC is fundamental in ArenaReds technology and uses uniquely designed Combustion Pressure Sensor (CPS) and Engine Control Unit (ECU). The combustion diagnostics extracted from every cylinder is used as feedback for the actuators, therefor the ECU requires a substantially amount of computing power to process the data coming from the CPS’s.

In order to provide quick demonstrators for new or other customers the DOCAT 3500AR ECU is built as an engine laboratory tool. It has 16 peak hold injector drivers. Its capable to drive any kind of injector, solenoid and piezo injectors. The ECU is fitted with extra in- and outputs for additional peripherals. Our ECU is also developed for acting as an engine lab data acquisition system.

The ArenaRed Chip is based on a Field-Programmable Gate Array (FPGA) with programmable transistors. Only this kind of FPGA’s are able to run 1000 CPBC processes in parallel. The FPGA gives ArenaRed an enormous amount of control possibilities. This makes it possible to integrate functionalities from other devices too, when saving a controller can be an issue for saving cost. Integrations could be;
  • Control of the Gas Supply
  • Gearbox
  • ORC
  • Trip planning

ArenaRed is ready and able to convert the dedicated ArenaRed CPBC FPGA into a dedicated chip.

Specs Hardware DOCAT 3500AR ECU
  • FPGA that can handle the sample rate and processing power required for CPBC.
  • The ArenaRed ECU is specified to run up to 22.000 rpm.
  • 16 injector drivers max 250 Volt Peak
  • 8 Can busses
  • 1 Giga bit Ethernet
  • 32 Digital inputs
  • 54 A/D converters
  • 2 VR sensor reed in
  • 1 Hall sensor reed in
  • 2 Rotary encoders,
  • 2 Full duplex RS485
  • 1 Cascade interface


Spec Software DOCAT 3500AR ECU
The engine software is written in MATLAB/Simulink with a shell of C#.
The AR CPBC Chip provides all data including the CPBC data like:  
Parameters to optimise efficiency, emissions and lifetime


  • CA50, CA10 and CA90, for analysing combustion phasing
  • IMEP, for analysing the load and for balancing the Injectors
  • Cycle Temperature, for analysing the emissions production 
  • Combustion diagostics to guard the engine from damage
  • Canbus, J1939 communication with all other periphery apparatus On Board Diagnostics, OBD, all diagnostics which are standard available on the CAT 3500 plus all diagnostics coming from the CPBC.


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