How it works
Combine standard modules and custom functions for your ECU
Many vehicle ECUs share a core set of functions. For these widely used features, Stream Technologies offers a comprehensive library of proven, standardized modules. You define the exact functionality your ideal ECU requires, and we design it using a combination of standard modules and custom components where needed. This approach significantly reduces engineering time and cost compared to a fully custom ECU, while still delivering a solution that fits your application perfectly.
The final product includes the ECU hardware as well as a hardware abstraction layer designed to streamline software development. If desired, Stream Technologies can also take on full or partial software development for your project. Contact us to explore the possibilities.
Standard Modules
The categories below provide an overview of the available modules for your ECU. For a complete and detailed list, please contact us using the form below. If your application has safety requirements, most modules can be adapted to meet SIL, ASIL, or PL standards.
Flexible Processing power
A high‑performance microcontroller can be chosen when your application requires advanced processing. If a simpler, more cost‑efficient microcontroller meets your needs, that option is fully supported as well.
Communication
A range of widely used communication modules is available. For example CAN-bus, RS-485 and LIN.
Inputs and outputs
Protected outputs are offered across multiple power classes, with both isolated and non‑isolated configurations available. Also a comprehensive range of inputs is available. This includes digital inputs, voltage‑sensing inputs, and current‑sensing inputs.
Wireless Connectivity
Modern ECUs frequently require integrated wireless communication capabilities. Standard module options include 4G, Wi‑Fi, Bluetooth, and GPS.
USER INTERFACES
A wide range of human‑machine interface options are available. From advanced touch‑enabled display modules to simple input and feedback elements such as push buttons, capacitive touch sensors, LEDs, and acoustic indicators.
ENVIRONMENTAL SENSING
Environmental sensing capabilities, including temperature, humidity, acceleration, and rotational measurement, can be integrated into the ECU.
CHARGE CONTROL
Mode 2 and Mode 3 charge‑control functionality can be integrated directly into the ECU. Hardware and control algorithms are available for both the EV interface and the EVSE interface
Why a Module-Based ECU?
Standard ECU
+ Low cost
+ Low time to market
– Does not perfectly match vehicle requirements
Module-Based ECU
+ Low Cost
Because most functionalities are pre‑engineered, you avoid the development costs for most ECU features. This significantly reduces overall cost.
+ Fast Time‑to‑Market
A prototype can be delivered within one month. After vehicle validation, ECU production can begin immediately.
+ Perfect Fit for Vehicle Requirements
By combining standard modules with custom elements where needed, the ECU can be tailored precisely to the needs of your application.
Custom ECU
– High cost
– Slow time to market
+ Perfectly matches vehicle requirements
Path To Production
Transparancy from a to z
Specification
In collaboration with you, we define the required vehicle functions and specify the corresponding performance and interface requirements. Standard modules are selected where they meet these needs. Functions that fall outside the standard library are implemented through custom hardware or software design.
Based on the finalized scope of the ECU, we establish the project timeline during this phase.
Prototype
You will receive a limited series of prototypes, which will undergo validation and testing in accordance with the agreed‑upon specifications. These can be produced in-house to minimize lead time.
Integration & Vehicle Validation
The delivered prototypes can be used for vehicle‑level integration and validation activities. Stream Technologies will provide support wherever required.
Handover & Production
After vehicle testing is completed and you transition to production, two pathways are available for the ECU. You may choose to acquire the ECU design, in which case all required files will be provided for you to manage manufacturing independently.
Alternatively, Stream Technologies can oversee and coordinate the full production process on your behalf.