Epicycle EM4 Advanced
Engine Control Unit
specifications
General
Microprocessor 32 Bit 33 MHz with Time CO Processor
Quality Standard ISO 9001
Manufacturing Standard IPC-S-815-A Class 3 High Reliability
Warranty 1 year Parts & Labour
Burn In -50° to 70° for 32 Hrs
ECU Control Software stored in updatable FLASH memory
High RFI Immunity
Low heat generation
Battery transient protection
Environmentally sealed electronics
Water proof connector with gold plated contacts
ECU Case Size 120 x 100 x 36mm (4.7 x 3.9 x 1.4 inches)
ECU Weight 0.4kg (14 oz)
Cylinders 1,2,3,4,6,8,12
Engines 2 stroke, 4 stroke, Rotary (1- 4cyl) Odd or Even fire
Maximum RPM > 15,000RPM
Injection
4 group sequential or group fire
User programmable injector current
0.5~12 Amps peak
Battery Comp to suit any injector
Fuel Calibration
Accuracy 0.000001 seconds
RPM and Load sites are user programmable
Main Table 40 RPM sites x 21 Load sites (840 points)
End of Injection 20 RPM sites x 6 Load sites (120 points)
Overall Trim ±50%
Individual Cylinder Trim ±50%
Individual Cylinder Tables 20 RPM sites x 11 Load sites (220 points)
Hi/Lo End of Injection 20 RPM sites x 11 Load sites (220 points)
Adjustable Engine & Air Temp compensations
Adjustable Barometric (Map) compensation
Two Auxiliary compensations
Injector Dead time Compensation
Acceleration Clamp, Decay & Sensitivity
Deceleration Clamp, Decay & Sensitivity
Cold Start (5 parameters)
lgnition Outputs
Up to 4 Ignition Outputs
One output may drive up to 8 coils using the MoTeC Ignition
Expander
Ignition Calibration
Accuracy 0.25 degrees
RPM and Load sites are user programmable
Main Table 40 RPM sites x 21 Load sites (840 points)
Overall Trim ±50%
Individual Cylinder Trim ±50%
Individual Cylinder Tables 20 RPM sites x 11 Load sites (220 points)
Adjustable Engine & Air Temp compensations
Adjustable Barometric (Map) compensation
Acceleration Advance - Clamp, Decay & Sensitivity
Two Auxiliary compensations
Dwell Time 20 RPM x 11 Battery
Odd fire engine capability Each top Dead Centre angle may be specified
Resolution 0.5 degree
Boost Control Calibration
Main Table 20 RPM sites x 10 Throttle sites or 10 Gear sites
Overall Trim and Air Temp comps
Engine Temp compensation
Two Auxiliary compensations
Trigger Sensors
Directly compatible with Weber & most OEM trigger systems
including:
HALL, Magnetic and Optical types
Air Fuel Ratio Sensor
High accuracy Wide Band Air Fuel Ratio Sensor Input (Optional) 6
hours free
Range 0.75 to 1.20 Lambda
Resolution 0.01 Lambda
Accuracy 1.5% (below 1.05 La)
Other Sensors
Throttle Pos. Manifold Pressure, Engine Temp & Air Temp
Narrow Band Oxygen
2 Auxiliary Sensor inputs
2 Digital / Speed inputs
Data Logging
Allows logging of all ECU channels
Memory Size. 512 kByte
Logging Rate 1-20 sets / sec
Logging Time 38 minutes at 5 sets / sec (28 Parameters+ Diags)
PC Software for analysis of the logged data
Special Functions
Traction Control & Launch Control (2 wheel speed sensors)
Gear Changes Ignition Cut
Narrow Band Air Fuel Ratio Control
Wide Band Air Fuel Ratio Control (3D mapped)
Over Run Boost Enhancement
Warning Alarms (Sensor HI / LO)
Gear Detection
Ground Speed Limiting
Dual RPM Limit
Nitrous Oxide Enrich / Retard
Over Run Fuel Cut
Multi Sensor Calibrations
Programmable Sensor Calibrations
RPM Limit - Hard or Soft Cut by Fuel and or Ignition Cut
Auxiliary Outputs
Three general purpose outputs that may be used for:
Turbo Wastegate Control
Idle Speed Control
Fuel Used Pulse
Tacho Output
Shift Light (Gear Dependent)
Driver Warning Alarm
RPM / Load dependent device
User Defined Table (20 x 11) with selectable axis parameters
Wheel Slip Warning
Fuel Pump Relay
Diagnostics
Injectors Open Circuit, Short Circuit,
Peak Current Not Reached
Sensors Open and Short Circuit
Operating Errors RPM Limit Exceeded, Injector Overduty, Over Boost, Low
Battery, REF Error, etc.
Calibration
Personal Computer
See separate brochure for PC Software details
Operating Conditions
Internal Temp Range -10-85°C
Ambient Temp -10-70°C (Depending on load and ventilation)
Operating Voltage 6-22V DC
Operating Current 0.4 A max
Reverse Battery Extended Fuse
EPICYCLE RESERVES THE RIGHT TO ALTER THESE SPECIFICATIONS AT ANY TIME WITHOUT NOTICE