EIU-510

TAG Motorsport Interface units

Engine Interface Unit

The EIU‑510 is a high‑power engine interface unit designed to operate alongside the TAG‑510 ECU, providing the drive stages and monitoring required for modern hybrid, turbocharged race engines with up to eight cylinders. By separating high‑current actuation from the core ECU, the EIU‑510 enables robust control of ignition, injection and fuel systems while maintaining reliable, high‑speed communication with the host ECU.

Documents

EIU-510.pdf

Performance at every stage.

The EIU‑510 is a dedicated power stage for the engine, handling high‑current outputs and diagnostics while exchanging configuration and data with the ECU over CAN.

Drives ignition, injection and fuel pump systems
Supports up to 8‑cylinder direct‑injection turbocharged engines
Designed for race car engine environments
Engineered as a companion unit to the TAG‑510 ECU

System architecture

The EIU‑510 forms part of a distributed engine control architecture, separating high‑power actuation from core control logic. This approach reduces electrical and thermal stress on the ECU while allowing the system to scale with increasing engine complexity.

Drive outputs

Output capability	Summary
Injector drive stages	12 dedicated injector drivers with multi‑stage current control
Ignition drive stages	8 high‑current ignition drivers
Fuel pump control	2 high‑pressure fuel pump drivers
Auxiliary drive stages	Outputs available for lambda heaters and actuator control
Diagnostics access	User‑configurable diagnostic outputs for system monitoring

Inputs and engine sensing

Input type	Description
Injection triggers	Configurable trigger inputs for injector control
Ignition triggers	Dedicated ignition trigger inputs
Fuel pump triggers	Configurable fuel pump trigger inputs
Temperature sensing	K‑type thermocouple inputs
Lambda sensing	Wide‑band lambda sensor interfaces
System inputs	Ignition switch and service / force‑boot input
Internal sensing	Integrated tri‑axis accelerometer

Communication & integration

Interface	Capability
CAN	Multiple CAN FD / CAN 2.0 interfaces for control and data logging
LIN	Single LIN interface
Configuration	ECU‑managed configuration and synchronisation
Data handling	High‑speed data exchange with the host ECU

Electrical architecture

Aspect	Overview
Power strategy	Designed to be supplied by an external system power regulator
Supply rails	Separate supplies for internal logic, injection and ignition systems
System intent	Electrical separation of control and high‑current actuation

Electrical architecture

Aspect	Overview
Power strategy	Designed to be supplied by an external system power regulator
Supply rails	Separate supplies for internal logic, injection and ignition systems
System intent	Electrical separation of control and high‑current actuation

Mechanical & environmental

Attribute	Specification
Enclosure	Hard‑anodised aluminium housing
Form factor	Compact rectangular unit
Environmental sealing	IP‑rated with sealed lids
Operating environment	Designed for high‑vibration, high‑temperature engine bays
Cooling strategy	Internal temperature monitoring supported

Compliance

Item	Details
Environmental compliance	RoHS compliant
EMC	Meets automotive EMC requirements
Service interval	Recommended 12‑month inspection cycle