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ECU Master EMU Black Standalone Engine Control Unitt



ECU Master EMU Black Standalone Engine Control Unit


ECU Master makes their EMU Black enclosure from CNC Machined Aluminium. The enclosure design guarantees high immunity to mechanical damage, water resistance (IP65), and very good heat conduction from electronic components.
The additional hole through the enclosure provides a mounting point.
At the front of the enclosure, ECU Master has incorporated a micro USB sealed connector for PC communication. Similarly, they have also provided a MAP sensor connection tube.


ECU Master has utilized 4 layers of PCB board and most of the components are SMD type (except connectors). In addition, they are coated with a special surface protecting the board and components from moisture. Due to design, the device is extremely immune to vibration.
ECU Master assembled according to IPC-S-815A standards on a fully automated assembly line with an optical inspection to ensure the highest possible quality.
Carefully electronic components selection allows proper device operation in a very wide temperature range (-40C to 105C) (AECQ-100 GRADE2)


The EMU BLACK has two additional analogs inputs in comparison to regular EMU. In addition to this, each analog input has software selectable pullup/pulldown (4700Ohm). For CLT and IAT inputs the pullup resistor is 2200Ohm and could be disabled via software. That allows easy sharing temperature signals with OEM ECU when connected in parallel.


The EMU BLACK has 3 digital switch inputs, used for activating strategies by switching input to the sensor ground.


The 3 trigger inputs (Primary trigger, CAM#1, CAM#2, and VSS) can be either pullup or pulldown (4700Ohm, 1000Ohm, 820Ohm) as well as analog filter level (none, low, medium hall).
Primary trigger input could be HALL or VR (software selectable). VR sensors can have the adaptive level as low or high.
For CAM#1 and CAM#2 inputs the reference voltage could be defined in separate 2D tables in the function of RPM what greatly improves noise immunity for VR sensors (the higher RPM the higher trigger voltage threshold)
For VSS sensor VR or HALL sensor type could be selected.


ECU Master EMU BLACK has a dedicated input for the Flex Fuel sensor ( regular EMU uses CAM#2 or VSS input for this purpose).


EMU BLACK supports active and passive coils (software selectable). In comparison to EMU Classic, it is possible to drive 2 active coils from one ignition output.


The stepper outputs of regular EMU were replaced by two states of the art bulletproof H-BRIDGEs with over 6A continuous current (1A for regular EMU). This allows control of stepper motors. In addition, electronic throttle, VANOS as well as any solenoid with current draw lower than 6A (low and high side drive possible)


Due to the high current capability of the built-in H-bridge, EMU BLACK is able to control the directly electronic throttle (no external module required). PWM frequency from 1000Hz to 8000Hz. For safety reasons, the DBW strategy works on 2 separate processors and any malfunctioning in one of them causes throttle limp mode.


All AUX outputs of EMU BLACK have a built-in fly-back circuit for precise control of solenoids.


The wideband oxygen sensor circuit will support LSU 4.2 and LSU 4.9 Bosch sensors.


EMU BLACK has built-in CAN-BUS support with a software-selectable 120Ohm terminator. In addition, a separate serial communication is available


Regular EMU uses the same internal voltage regulator for internal circuits and external sensors (+5V output). EMU BLACK introduces an additional +5V regulator for 5V output. 2x +5V output terminals for easier harness design.


+12V is provided by a fixed 12V input used for powering the device and flyback circuit. Whereas, a switched +12V is used to turn on and off the device.


ECU Master provides 3 separate sensor ground terminals to allow easier harness design.


EMU BLACK uses 2 connectors (black and grey). The grey connector (24 ways) shares a pin layout with the Classic. Moreover,  the 39-way connector is unique to the Black. However, it is very easy to repin a classic.


EMU BLACK software features improvements and functionality over the EMU Classic Software. The configuration tree has now an additional hierarchy level what makes navigation easier.

The booklet can be downloaded here


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