EFIgnition 46

The EFIgnition 46 is an advanced sequential engine management system designed for engines with up to 12 cylinders. This system precisely controls the opening of the injector to within one-thousandth of a millisecond and the ignition timing with an accuracy of 0.1 degrees.

The EFIgnition 46 is fully programmable and is based on a high-speed automotive-grade 16-bit 25 MHz NXP MC9S12 microprocessor.

Features

• Robust design
• Waterproof
• Rapid and efficient adjustment
• Reliable and trouble-free operation
• Advanced functionalities

Injection

• Four (46) individual injector controls with an opening time of 1/1000 millisecond.
• Semi- and fully sequential injection.
• Injector timing adjustable to 0.1 degrees per RPM and load.
• Adjustable injection quantity per injector (Injector Trim).
• Various adjustable fuel injection strategies (MAP, MAF, AlphaN, ITB).
• Adjustable deceleration cut-off for injection.
• Closed-loop mixture control with a target air-fuel ratio table.
• Injector staging.
• Connection for a flex-fuel sensor (E85 or BioEthanol).
• Switching of the injection field (Table Switch).

Ignition

• Six (46) individual ignition outputs for "smart coils" with built-in output stages (V12 in wasted spark mode).
• Ignition timing with an accuracy of 0.1 degrees.
• Adjustable ignition offset for odd-fire engines (Ducati, Harley Davidson, Maserati, PRV engine).
• Switching of the ignition field.
• Adjustable coil charge time and correction based on battery voltage and acceleration.
• Ignition timing correction based on intake air temperature.
• Recognition of idle and load-dependent idle timing.

Additional Functionalities

• Support for various RPM sensing technologies (VR, HALL, Opto) and trigger wheel configurations.
• Adjustable RPM limiter (Spark retard, Spark cut, Fuel cut).
• Control of idle RPM via PWM motor or stepper motor.
• Launch control, flat shift, sequential shift, and shift load relief for automatic transmissions.
• Boost control for turbo engines.
• Tachometer output.
• Control of electric coolant fan.
• Control of variable camshaft timing (on/off).
• Barometric correction.
• Nitrous gas controller.
• 0-5V analog inputs for exhaust gas temperature module and knock sensor module.

Communication

• USB
• Bluetooth with unique PIN code
• RS232
• CANbus

User-Friendliness

The EFIgnition can be configured using the most versatile and user-friendly ECU calibration software ever developed: Tunerstudio. The effectiveness of an engine management system relies not only on the electronics but also on the usability of the software. A clear layout and easily accessible functions are crucial for optimal engine tuning.

In the 3D tuning menu, the characteristic fields can be quickly and clearly set.

Through a module in Tunerstudio (VE Analyze Live), the ECU can automatically adjust itself, which has proven to be highly effective.

Data logs can be created and later analyzed using powerful tools for further optimization of the tuning.

Robustness

Vehicles must perform under the most extreme conditions, such as:

- Very high and very low temperatures
- High humidity
- Splashing water or submersion in wading vehicles
- Dust and dirt
- Salt in coastal areas and brine in winter
- High frequencies of vibrations
- Impacts during off-road use

A common cause of failure in engine management systems is moisture intrusion. Therefore, the casing of the EFIgnition has been designed to prevent moisture from reaching the electronics.

The electronics are fully vibration-resistant within this casing, allowing for installation in the engine compartment of off-road vehicles. Additionally, components have been selected for their high temperature resistance.

- 100% waterproof
- 100% vibration-resistant
- Impact-resistant
- Compact design

Through intelligent component placement, a quad-layer PCB design, and a unique custom housing, the EFIgnition represents the most complete and compact engine management system in the world, measuring 115 mm x 65 mm x 28 mm, excluding the connector.

A modern automotive-grade connector with a double seal has been chosen to prevent water infiltration. This connector is compact, has proven to be highly reliable, and is also utilized by OEMs in production vehicles.

PCB Design

All circuit traces have been manually optimized, with separate ground planes for sensors and actuators to ensure trouble-free operation and accurate sensor value registration by the processor. A central ground point with multiple connections promotes trouble-free operation. Rounded circuit traces ensure correct signal transmission without loss or crosstalk. Components that switch high currents are placed close to the connector, and integrated PCB heat sinks with perforations provide cooling for power-fed components. Low-loss power FETs for the high-power output stages minimize internal heat. Circuit traces carrying high currents are designed to be thick, wide, and short, and the quad-layer PCB design contributes to a more compact construction. The ECU operates excellently on 24V systems and features a short-circuit-proof switched 5V power supply with very low self-consumption. The arrangement of inputs and outputs on the ECU connector is logical, and Bluetooth communication is securely shielded from sensitive areas on the PCB. The stepper motor driver is current-protected, and the components are of the highest quality, exhibiting high resistance to extreme temperatures.

Our engineers have refined the design until complete satisfaction was achieved. Subsequently, we dedicated hundreds of hours to testing the ECU, covering tens of thousands of test kilometers in the most remote locations in Europe. Based on these tests, we made further adjustments to the design. The final result is a reliable engine management system, rich in innovations and manufactured with the highest quality components that have been proven in practice.