EMTRON KV8

Emtron’s KV8 is a wire-in ECU with extreme flexibility.  Industry leading I/O count will ensure you do not have to make any sacrifices when configuring your engine and vehicle.  This ECU will support up to 8 Channels of fuel and 8 Channels fully sequential Ignition.  Every KV8 is housed in a durable billet Aluminium enclosure and includes up to 32MB permanent memory for on board logging, 4-channel oscilloscope function, Drive By Wire (DBW) control up to 2 channels, dual LSU4.9 Lambda controllers, dual digital Knock control, Ethernet communications and 3 axis G-force sensing to name a few.

KV8 Rev2 ECU Pinout - Emtron (5682 downloads)
KV8 ECU Data Sheet - Emtron (6577 downloads)

1.0 General

Power Supply
Operating voltage: 6.0 to 22.0 Volts DC (ECU shutdowns at 24.0V)
Operating current: 390mA 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
Aluminum 6061 grade CNC billet enclosure
Enclosure size 134 mm x 162 mm x 27 mm
Weight: 730g
Connector system: 120-way Super Seal waterproof connectors with gold plated contacts, pin diameter of 1 mm
Current rating: maximum 15A per pin (wire gauge dependant)
Connector A: 26 pin Key 2 Super Seal
Connector B: 34 pin Key 2 Super Seal
Connector C: 34 pin Key 1 Super Seal
Connector D: 26 pin Key 1 Super Seal
Internal
Dual 100MHz processors
500Mb DDR RAM
32MB ECU logging memory, over 1200 channels available, 1Hz to 500Hz logging rate
4-Channel oscilloscope function
Sampling at 100k samples/second
Includes Crank and Cam 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

2.0 Injection

The KV8 can control both modes of injection: Saturated and Peak & Hold up to 8 channels.

Peak and Hold Injector Control
When using low impedance injectors (< 5 Ohms) the ECU uses a switch mode current limiting technique to minimise heat dissipation in the Injector. This gives better injector control and helps maximize injector life by lower its operating temperature.

Independently configurable Peak and Hold currents
Flyback Voltage Clamp 70V
Max Peak current 8A
Max Hold current 4A
Total current limited to 10A
Saturated Injector Control
Required when injector resistance is greater than 5 Ohms.

Flyback Voltage Clamp 70V
Total current limited to 10A
Auxiliary Injection Mode
Unassigned Fuel channels can be used to switch or modulate resistive and inductive load.

Flyback Voltage Clamp 70V
Total current limited to 10A
Maximum Frequency: 5kHz
No internal flywheel diodes. VVT and Idle solenoids require external flywheel diodes
Protection
Over current / Short to Battery protection
Electrostatic discharge (ESD) protection
Flyback Voltage Clamp

3.0 Ignition

The KV8 supports up to 8 Ignition Outputs.

Ignition Control
Open collector outputs (low side) with active current source control to produce a logic level signal
Adjustable Ignition drive current (35mA or 70mA)
Auxiliary Ignition Mode
When the Ignition output is not configured to drive an ignitor, it can be used to switch or modulate a resistive or inductive load.

Flyback Voltage Clamp 40V
Continuous current limited to 1A
Total current limited to 3A
Maximum Frequency 5kHz
No internal flywheel diodes. VVT and Idle solenoids require external flywheel diodes
Protection
Over current / Short to Battery protection
Electrostatic discharge (ESD) protection

4.0 Digital Inputs

The KV8 has 14 Digital Inputs providing Frequency and Switched based inputs into the ECU. These inputs have a high level of configurability allowing easy interface to all sensor types. Digital Inputs 1-8 can be used to measure frequency, while all channels can accept a switched input.

8x Digital/Speed Inputs (DI 1 – 8)
Frequency range from 0.0Hz up the 30.0kHz on all 8 channels
Magnetic and hall/optical effect sensor compatible with programable trigger edge(s)
Independent programable frequency-based arming threshold control, range 0.0 – 12.0V
Wheel speed, output shaft speed, turbo speed and other frequency-based signals
VVT position(s) up to 4 channels available on DI 1- 4.
Accepts a 0.0 – 20.0V analog input. Effective resolution is 4.88mV (10-Bit)
On/Off switched inputs: AC request, launch enable, cruise switch, table control switching etc with programable switch-based arming threshold control, range 0.0 – 20.0V
Switchable 4k7 ohm pull-up resistors on all 8 channels to 9.0V
6x Digital/Switched Inputs (DI 9 – 14)
On/Off switched inputs: AC request, Launch enable, cruise switch, table control switching etc with programable switch-based arming threshold control, range 0.0 – 20.0V
Accepts a 0.0 -20.0 V analog input. Effective resolution is 19.61mV (8-Bit)
Switchable 4k7 ohm pull-up resistors on all 6 channels to 9.4V
Analog Voltage Input Mode
When not used as frequency or switched inputs these channels can be used to measure analog signals. All channels have over voltage protection with an input range of 0.0 – 20.0V.

5.0 Auxiliary Outputs

The KV8 has 16 Auxiliary Outputs with a wide variety of driver types to suit all applications. These drives are suitable for controlling relays, resistive and inductive loads, stepper motors, DC servo motors and electronic throttles. All outputs are short circuit and over current protected.

Auxiliary Output 1-8 (low or high side)
Auxiliary 1-8 drivers can be configured for Low Side or High Side driving
Maximum Frequency: 15kHz
Flywheel diodes integrated into all outputs. Flywheel recirculation to the ECU Supply
Auxiliary 1-4: Low Side 4A continuous, 8A limit
Auxiliary 5-8: Low Side 2.5A continuous, 5A limit
Auxiliary 1-8: High Side 4A continuous, 9A limit
Auxiliary Output 9-16 (Half bridge)
Auxiliary 9-16 are all half-bridge drivers
Maximum Frequency: 15kHz
Auxiliary 9-12: Half Bridge 5A continuous and 8A limit. Can be H-bridge configured for DC motor control (DBW)
Auxiliary 13-16: Half Bridge 15.0A continuous (pin limited)
Auxiliary Output Protection
Over current / Short to Battery/Thermal overload protection
Electrostatic discharge (ESD) protection
Reverse battery protection
Applications
Variable Valve Timing (VVT), Variable Valve Timing Electric (VTiE), Drive by Wire (DBW) up to 2 throttle bodies, boost control solenoids, gearshift solenoids, stepper motor, nitrous solenoids and many more

6.0 Analog Inputs

Analog input channels 1-16 are sampled using high resolution 12-bit analog to digital converters with a 0.0 -5.000V input range. All channels support ratiometric and absolute 3-wire based sensors such as MAP, Throttle position(s) and pressures etc. Channels 7-12 also support thermistor 2-wire sensors such as engine temperature, inlet air temperature with switchable 1k ohm pullup resistor control.
16x Analog Voltage/Temperature Inputs.
Fully configurable including custom calibrations
Switchable 1k ohm pull-up resistors on ANV 7-12 (available on 6 channels)
Accepts a 0.0 – 5.000V analog input range. Resolution is 1.22mV (12-Bit)
Input Impedance 100k Ohms to ground

7.0 Crank Index and Sync Sensor Inputs

Two Independent channels with Magnetic, Hall effect and Logic options
Switchable Pull-up resistor = 4k7 Ohm to 5.0 V
“True” Zero crossing detection on magnetic based signals
Programmable Independent arming threshold control, range 0.1V to 12.0V
Maximum signal amplitude +/-80V
Input Resistance = 39k Ohms to ground
OEM patterns supported

8.0 Knock Control

2 Independent knock input channels with fully differential inputs.
Using Bosch, Digital Knock Integrated Circuit Technology with programmable FIR filter
Center frequency from 500Hz – 25kHz
Bandwidth window from 100Hz – 5kHz
Digital filter window; Hamming or Blackman
Gain control(x1, x2, x4, x8)
Cylinder selectable knock input
Knock control available on ALL Ignition modes (Direct, Wasted, Distributor etc)

9.0 Lambda Control

This ECU supports on-board dual Lambda controllers using the Bosch LSU4.9 wide band oxygen sensor.

x2 independent on-board channels supporting Bosch LSU4.9 sensor
Using Bosch, Integrated circuit technology for sensor control
Nernst cell temperature measurement for precise PID heater and temperature control
Lambda range: 0.580 La to 10.000 La
Protection
Short to ground
Short to Vbat
Open Load.

10.0 Analog Voltage Outputs

Resolution is 4.88mV (10 bit)
Output voltage range 0 – 5.0V
Output driving current 100mA
Output impedance 22 Ohms

11.0 Regulated Voltage Outputs

The KV series regulated supplies are designed for the harsh automotive environment. They include protection from reverse battery, jump starting transient voltage surges and automatic shutdown when the output is shorted to ground.

5.0V VRef1
Main sensor 5.0V supply
Continuous current 0.4 Amps
Accuracy: +/- 1.0 % at 25 °C
Short circuit, Reverse battery protection, Thermal overload protection
5.0V VRef2
Secondary sensor 5.0V supply
Continuous current 0.4 Amps
Accuracy: +/- 1.0 % at 25 °C
Short circuit, Reverse battery protection, Thermal overload protection
8.0V CAS
Continuous current: 0.6 Amps
Accuracy: +/- 1.0 % at 25 °C
Short circuit, Reverse battery protection, Thermal overload protection

12.0 Supply Voltage Inputs

ECU Supply
Operating Range 6.0V – 22.0V
Power Supply for Auxiliary Channels 1- 8 High Side Drivers
Flywheel supply for Injector channels when Peak & Hold mode is active
Flywheel supply for Auxiliary channels 1- 8
Aux 9-12 Supply
Dedicated power supply for Auxiliary Channels 9-12 half bridge drivers
Aux 13-16 Supply
Dedicated power supply for Auxiliary Channels 13-16 half bridge driver

13.0 EFI Relay Control

Dedicated EFI Relay Control
Provides a relay ground, 200mA Limit
Short circuit, Thermal overload protection
Dedicated Ignition Switch
Used to control Main EFI Relay circuit at key-on
Input Analog Voltage Range: 0 – 20.0V
Input Impedance 100k Ohms to ground
Adjustable ON/OFF thresholds. Resolution = 0.1V

14.0 Communications

1x High Speed Ethernet 100Mbps for tuning software connection
2x CAN 2.0B 1Mbps/ 6 Channels per node, total 128 messages