Emtron SL4

Emtron’s SL4 is a wire in ECU with extreme flexibility. This ECU will support up to 4 Channels of fully sequential Fuel and Ignition.  Every unit is housed in a durable billet Aluminium enclosure and includes 32MB permanent memory for on-board logging, 4-channel oscilloscope function, DBW control, Knock control using digital filter technology, high speed Ethernet communications and 3-axis G-force sensing to name a few.

Power Supply

• Operating Voltage: 6.0 to 22.0 Volts DC (ECU shutdowns at 24.0V)
• Operating Current: 290mA at 14.0V (excluding sensor and load currents)
• Reverse Battery Protection via External Fuse
• “Smart” battery transient protection

Operating Temperature

• Max operating range: -30 to 110°C (-22 to 230°F)
• Recommended operating range: -30 to 85°C (-22 to 185°F)

Physical

• Aluminium 6061 grade CNC billet enclosure
• Enclosure size 120 mm x 130 mm x 27 mm
• Weight: 470g
• Connector system: 68-way Super Seal waterproof connectors with gold plated contacts
• Pin diameter: 1 mm
• Current rating: maximum 15A per pin (wire gauge dependant)
• Connector A: 34 pin Key 2 Super Seal
• Connector B: 34 pin Key 1 Super Seal

Internal

• Dual 100MHz processors
• 500Mb DDR RAM (0.5Gb)
• 32MB ECU logging memory.  Over 1200 channels available, 1Hz to 500Hz logging rate
• Oscilloscope 4-channel function with 32MB storage
  • Sampling at 100k samples/second
  • Includes Crank Index and Sync sensor inputs
  • Includes Digital Inputs 1-4
• On-Board barometric pressure sensor. Range 40 – 115.0 kPa
• 3-Axis accelerometer. 16-Bit resolution,  +2g/+4g/+8g dynamically selectable full-scale

4x Port Injector Outputs—high  ohm

• 70V clamping
• Outputs can be used for ground switching, 6A Continuous, 10A Limit
• All outputs are short circuit and over current protected
• No Flywheel diodes (external diode(s) required for VVT control)

4x Ignition Outputs

• Adjustable TTL Ignition drive current (35mA or 70mA)
• Outputs can be used for ground switching, 1A Continuous, 3A Limit
• All outputs are short circuit and over current protected
• No Flywheel diodes (external diode(s) required for VVT control)

10x Auxiliary Outputs

• Variable Valve Timing (VVT) and Variable Valve Timing Electric (VTiE), Drive by Wire (DBW), dual boost control, gearshift solenoids, stepper motor and many more.
• All outputs have PWM control, maximum frequency = 15 kHz
• Flywheel diodes integrated into all outputs
• All outputs are short circuit and over current protected. 
• Low Side Driver Auxiliary 1-4: 4A continuous, 6A peak modulated, 8A limit
• Low Side Driver Auxiliary 5-8: 2.5A continuous, 4A peak modulated, 5A limit
• High Side Driver Auxiliary 1-8: High Side 4A continuous, 9A limit
• Half Bridge Driver Auxiliary 9-10: 5A continuous and 8A limit. Can be used as Low Side, High Side or together in H-bridge configuration for DC motor control (DBW)

1x EFI Relay Output

• Low Side Driver for relay control. Current limited to 200mA

1x Shield Output

• Connection for Trigger and Knock shielded cables. Short to battery protection

10x Analog Voltage/Temperature Inputs

• Fully configurable including custom calibrations
• Switchable 1k ohm pull-up resistors on ANV 7-10 for temperature inputs (available on 4 channels)
• Accepts a 0.0 – 5.0V analog input. Resolution is 1.22mV (12-Bit)

6x Digital/Speed Inputs/Switched Inputs

• Frequency range from 0.0Hz up the 30.0kHz on all 6 channels
• Magnetic and Hall effect sensor compatible on DI 1-4 with programable trigger edge(s)
• Hall effect sensor only on DI 5-6 with programable trigger edge(s)
• Independent programable frequency-based arming threshold control, range 0.0 – 12.0V on DI 1-4
• Fixed frequency-based arming thresholds on DI 5-6. Rising = 1.2V, Falling = 1.0V.
• Wheel speed, output shaft speed and other frequency-based signals
• VVT position(s) up to 4 channels available on DI 1- 4.
• ON/OFF switched inputs: AC request, Launch enable, cruise switch, table control switching etc with arming threshold control, range 0.0 -20.0V
• Accepts a 0.0 – 20.0V analog input. Resolution is 4.88mV (10-Bit)
• Switchable 4k7 ohm pull-up resistors on all 6 channels to 10V

2x Knock Inputs with configurable Frequency and Gain.

• Using Bosch digital knock integrated circuit technology
• Selectable center frequency from 500Hz – 25kHz
• Selectable bandwidth from 100Hz – 5kHz
• Selectable digital filter window; Hamming or Blackman

1x Dedicated Ignition Switch Input

• 0 – 20.0V input used for EFI Relay Control. (With input > 4V the EFI Relay output (D9) will switch ON)

2x Crank Index and Sync Engine Decoding Inputs

• Magnetic and Hall effect sensor compatible with programable trigger edge(s)
• “True” zero crossing detection on magnetic signals for precise engine position decoding.
• Programmable independent arming threshold control from 0.1V to 12.0V
• Switchable 4k7 ohm pull-up resistor to 5V
• OEM patterns supported