Engine Control Unit

CE367B Engine Control Unit

The ECU developed by Currawong Engineering is the perfect choice for integration into small UAV platforms. Its aerospace quality design with EMI shielded aluminium body provides superb physical and electrical protection. Based on a well proven, high performance automotive ECU core with over ten thousand units in the field, this is a tiny, reliable system which provides complete control of a fuel injected engine.

General Description: This ECU, manufactured by Currawong Engineering, provides a complete monitoring and control solution for small fuel injected engines. It can be calibrated to provide optimum performance over a wide range of engines, in a variety of configurations and sizes.

Miniaturised Design: The tiny, compact design of this ECU makes it a perfect choice for integration into small UAV platforms. It is of aerospace quality, and offers an extremely robust engine control solution perfectly suited for use in the UAV industry.

Mature, Reliable Control Algorithms: The engine control algorithms implemented in the ECU are based on the very mature Autronic SM4 platform. This platform uses a patented control strategy specifically targeted for use on multi-throttled and low-manifold vacuum engines, with excellent performance achieved for two stroke engines. The Autronic code base has been used successfully in the automotive market for many years, with thousands in the field. It has been proven across all types of engines, and provides a well-developed, sophisticated and reliable engine control solution.

Seamless UAV Integration: This established ECU platform is complemented by the UAV-specific functionality developed by Currawong Engineering. This includes barometric pressure sensing, a complete throttle position and pump control solution, and UAV-targeted telemetry available on both serial and CAN (Controller Area Network) interfaces. The ECU features plug and play compatibility with Cloudcap Technology Piccolo avionics.

Single Power Supply: The ECU provides a complete single-supply solution, with integrated high-power injector and ignition drivers, servo control of throttle position, and closed-loop fuel pump control, and a 6V supply for use with throttle servos and ignition units. All sensors and control systems connect directly to the ECU, which even includes high-power drivers for added GPIO (General Purpose Input Output) ports.

Powerful Control Interface: Communication with the ECU for in-flight monitoring and control is simple, with both serial and CAN interfaces providing real-time engine telemetry and engine control command set. Calibration of the ECU for a specific engine is achieved using a powerful interface that allows customisation of all elements of ECU operation.

A Complete Solution: With this ECU, Currawong Engineering provides a complete engine management system that is designed to meet the demanding requirements of fuel-injected UAV platforms. Featuring a full complement of sensors and integrated power electronics, this miniature ECU offers a powerful solution that is ready to integrate into your UAV platform.


  • Extremely small design, machined aluminium enclosure – 15 g (0.5 oz)
  • Single supply solution – provides power for the entire engine management system
  • Suited for a wide range of engines, 2/4 stroke, reciprocating or Wankel, with multiple cylinders
  • Based on a mature high performance automotive core
  • Highly configurable engine parameter tables
  • Advanced PC Interfaces
  • CAN and Serial (RS232) interface for calibration and telemetry
  • Complete low level calibration of ECU operation
  • Complete integration with Piccolo avionics (Cloud Cap Technology)
  • Support for two injectors (up to eight with expansion)
  • Features GPIO for custom applications



Length: 66 mm (2.6″)
Width: 61 mm (2.4″)
Height: 16 mm (0.6″)
Weight: 60 g (2.5 oz)

Product part number: CE367B


  • Crank position
  • Engine RPM
  • Throttle position
  • Manifold temperature
  • Cylinder head temperature
  • Fuel pressure
  • Manifold pressure
  • Barometric pressure

Control Systems

The ECU provides direct control of a number of key engine management systems, including:

  • Servo control of throttle position
  • Fuel pump control loop – pressure regulation
  • Fuel injection timing
  • Spark ignition timing
  • Fully configurable engine parameter tables


Voltage:      8 – 20 V operation

Power:         < 8W at full operation*

* Power required to run ECU, injectors, ignition, pump system, throttle control and all sensors.


  • Extremely small design
  • Lightweight, rigid enclosure machined from aluminium
  • Single supply solution
  • Suited for wide range of engines
  • Integrated power circuitry for driving entire
  • Engine management system
  • Support for up to 2 injector drivers; with possible expansion to 8
  • Features GPIO for custom applications
  • Based on mature, proven automotive ECU system
  • Engine management functionality targeted specifically for UAV industry
  • Full complement of sensors provides full engine monitoring capabilities
  • Electronic interface, both serial and CAN
  • Complete low level calibration of ECU operation
  • Real time engine telemetry data
  • Integration with Piccolo avionics

CE367.d01 ECU Type B data sheet