EMTRON KV12

Emtron’s KV12 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 12 Channels of Fuel (6 cylinders fully sequential staged injection) and 12 Channels fully sequential Ignition.  Every KV12 is housed in a durable billet Aluminium enclosure and includes up to 32MB permanent memory for on board logging, 4-channel oscilloscope function, DBW control up to 4 channels, dual LSU4.9 Lambda controllers, dual digital Knock control, Ethernet communications and 3 axis G-force sensing to name a few.

KV12 Rev2 ECU Pinout - Emtron
KV12 ECU Data Sheet - Emtron

1.0 General

Power Supply
Operating Voltage: 6.0 to 22.0 Volts DC (ECU shutdowns at 24.0V)
Operating Current: 350mA at 14.0V (excluding sensor and load currents)
Reverse Battery Protection via External Fuse
“Smart” Battery Transient Protection
Operating Temperature
ECU Internal Temperature Operating Range: -30 to 110°C (-22 to 230°F)

External
Enclosure Size: 134 mm x 162 mm x 27 mm

Weight KV Series: 0.74kg
Internal
Dual 100MHz Processors

500MB DDR RAM (0.5GB)
Up to 64MB permanent memory storage for ECU logging and Oscilloscope Function
Up to x10 channel Oscilloscope function
o Sampling at 500k samples/second

o Includes Crank and Cam sensors inputs

o Includes Digital Inputs 1-8

On-Board Barometric Pressure Sensor.
o Range 40 – 115.0 kPa

3-Axis Accelerometer
o 16 Bit Resolution

o 2g/ 4g/ 8g dynamically selectable full-scale

o Output Data Rate 500Hz

Communications
Ethernet 100Mbps. High Speed communications channels used for tuning and uploading ECU log files.

2x CAN nodes/ 6 Channels per node
1x RS232 channel

2.0 Injection

The ECU can control both modes of injection: Saturated and Peak & Hold.
Peak and Hold – 12 x channels

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 up to 12 cylinders

Max Peak current 8A
Max Hold current 2A
Current limited to 10A.
Flyback Voltage Clamp: 60V.


Saturated

Required when injector resistance is greater than 5 Ohms.

Current limited to 5A.

Flyback Voltage Clamp: 60V.
Auxiliary Fuel Mode

Unassigned Fuel channels can be used to switch or modulate resistive and inductive loads.

Sink continuous current 5A, current limit 8A.

Flyback voltage clamp: 60V.
Maximum Frequency: 5kHz


Protection

Over current / Short to Battery protection
Electrostatic discharge (ESD) protection
Flyback Voltage Clamp: Dependent on Flyback pin configuration. Normally battery constant power.

3.0 Ignition

Ignition Control – 12x channels
12 Channels Sequential/Wasted Ignition or 6 Leading / 6 Trailing Ignition.

Independent switchable pull-up resistor control on channels 1 to 12.
Adjustable source current; 35mA at 5V or 70mA at 8.2V for high current mode
Auxiliary Ignition Mode

Unassigned Ignition channels can be used to switch or modulate resistive and inductive loads.

Sink continuous current 1A, current limit 3.0A.

Flyback voltage clamp: 40V.
Maximum Frequency: 5kHz
Protection

Over current / Short to Battery protection
Electrostatic discharge (ESD) protection

4.0 Digital Inputs

Digital Inputs Overview – Up to 14x channels
Application: Switch to 0V, Switch to VBatt, logic signal, Magnetic or Hall effect frequency based signals.

Input Analog Voltage Range: 0 -20.0V
Input Frequency Range: 0 – 30kHz (Available on DI 1- 8)
Filter time constant = 12us
Input Impedance.
o DI 1- 8: 39k Ohms to ground.

o DI 9 -14: 70k Ohms to ground.

Switchable Pull-up resistor on all channels
o 4k7 to 9.0V.

“True” Zero crossing detection on magnetic based signals
Independent programmable arming thresholds from 0.1V to 15.0V on frequency based inputs. Resolution = 0.1V.
Programmable trigger edge(s).
Maximum input signal amplitude /-100V.
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.

DI 1- 8

Input Analog Voltage Range: 0 – 20.0V
4.88mV resolution (10 bit effective resolution)
Maximum usable Analog Input Voltage: 20.0V
Input Impedance = 39k Ohms to ground.
DI 9- 14

Input Analog Voltage Range: 0 – 20.0V
20.0mV resolution
Maximum usable Analog Input Voltage: 20.0V
Input Impedance = 70k Ohms to ground.

5.0 Auxiliary Outputs

The ECU contains 3 different types of auxiliary outputs. These drives are suitable for controlling relays, resistive and inductive loads, stepper motors, DC servo motors and electronic throttles. Auxiliary channels 1-8 can be selected as Low or High Side Control on most models.
Low Side Driver – Up to 16x Channels

Auxiliary 1-4:
o Continuous current 3A

o Modulated peak current 5A

o 8A Limit

Auxiliary 5-8:
o Continuous current 2A

o Modulated peak current 3.5A

o 5A Limit

Auxiliary 9-12: Half bride (see below)
Auxiliary 13-14: Sink Continuous current 6A, 12A Limit
Auxiliary 15-16: Sink Continuous current 10A, 20A Limit
Maximum Frequency: 15kHz
Protection

Over current / Short to Battery/Thermal overload protection
Electrostatic discharge (ESD) protection
Reverse Battery Protection
Flyback Voltage Clamp: Dependent on Flyback pin configuration. Normally battery constant power.
High Side Driver – Up to 8x Channels

Auxiliary 1-8: Source Continuous current 4A, 9A Limit
Maximum Frequency: 15kHz
Protection

Over current / Short to Battery protection/Thermal overload protection
Electrostatic discharge (ESD) protection
Reverse Battery Protection
Flyback Voltage Clamp: Dependent on Flyback pin configuration. Normally battery constant power.
Half Bridge Driver – 4x Channels (Aux 9 – 12)

Sink or Source Continuous current 5A, 8A Limit.
Maximum Frequency: 15kHz
Protection

Over current / Short to Battery protection Thermal overload protection
Electrostatic discharge (ESD) protection
Reverse Battery Protection
Flyback Voltage Clamp. Battery voltage through Aux 9-12 Supply pin.

6.0 Analog Inputs

All analog inputs are sampled using 12bit ADCs. They are suitable for sensors that have an output voltage, potentiometers and temperature sensors. All analog inputs can also be used as switched inputs with activation levels programmable from 0 – 5V.
Analog Voltage Inputs – Up to 14x Channels

Input Analog Voltage Range: 0 -5.0V
100k ohms input resistance to ground
1st order 100Hz Low pass filter.
1.22 mV resolution
Analog Temperature Inputs – Available on 6 channels

Configurable pull-up control on Analog Channels 7 -12
Input Analog Voltage Range: 0 -5.0V
1.0k ohm input resistance to 5.0V and 100k Ohms to 0V
1st order 100Hz Low pass filter.
1.22 mV resolution
7.0 Crank and Cam Sensor Inputs
Two Independent channels with Magnetic, Hall effect and Logic options
Maximum signal amplitude /-100V
Input Resistance = 39k Ohms to ground
Switchable Pull-up resistor = 4k7 Ohm to 5.0 V
“True” Zero crossing detection on magnetic based signals
Programmable Independent arming thresholds from 0.1V to 15.0V on all signals

8.0 Knock Control

2 Independent channels
Using Bosch, Digital Knock Integrated Circuit Technology
Selectable Frequency from 5 – 15kHz
Selectable Bandwidth form 300Hz – 5kHz
Programmable digital filter coefficients
Selectable gain control
Bank selectable Knock Control

9.0 Lambda Control

2 independent channels supporting Bosch LSU4.9 sensors
Using Bosch, Integrated circuit technology for sensor control
Closed Loop heater temperature control for precise lambda measurement

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 Voltage Supply Outputs

5V Engine Supply
Continuous current: 0.25 Amps
Accuracy: /- 0.5% at 20 °C
Short circuit, Thermal overload protection.
5V Auxiliary Supply

Continuous current: 0.25 Amps
Accuracy: /- 0.5% at 20 °C
Short circuit, Thermal overload protection.
8V CAS

Continuous current: 0.4 Amps
Accuracy: /- 0.5% at 20 °C
Short circuit, Thermal overload protection.

12.0 Voltage Supply Inputs

ECU Supply
Main ECU Power Supply
Power Supply for Auxiliary Channels 1- 8 High Side Drivers
Operating Range 6.0V – 22.0V
Aux 9-12 Supply

Power Supply for Auxiliary 9-12 Half Bridge Drivers
o Connect to ECU Power Supply in non DBW applications

o Connect to DBW Relay output in DBW applications

Flyback Supply

Flyback supply for Injector Channels when Peak & Hold mode is active
Flyback supply for Auxiliary Channels.
Connection will depend on loom layout. In most cases connect to a Battery Constant supply to prevent back-feeding issues.

13.0 Dedicated Functions

Dedicated Main Relay Control
Provides a relay ground, 100mA 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
100k ohms input resistance to ground
Adjustable ON/OFF thresholds. Resolution = 0.1V