ECU banner

Electronic Control Unit

Automotive ECU Development

The electronic control unit (ECU) is critical for vehicle functionality and safety. At Promwad, we provide end-to-end automotive ECU design services to enable the operation of multiple modules and systems within electric, hybrid, and internal combustion vehicles.

Meeting ECU software development standards, we create lightning solutions, body and chassis control units, engineers systems for telematics, access, and control. Also, we specialise in HVAC system design, pneumatic, and hydraulic development.

How ECU Operates

During ECU development, we aim to establish the seamless coordination of hardware and software components.

Receiving data from sensors and using embedded software algorithms, the ECUs can perform real-time calculations and decision-making to ensure smooth operation.

It enables coordination between various vehicle systems through CAN, LIN, and Automotive Ethernet communication protocols.

ECU car

What Guides Our ECU Development

ISO 26262

Our Solutions

Cab Control Units

Cab control units are used for managing cabin-related features. They include instrument cluster, infotainment systems, climate control, etc.

HVAC Solutions

We offer HVAC software design services, leveraging our expertise to create efficient and precise climate control solutions for vehicles. Our team incorporates temperature management, airflow distribution, fan speed, and other features.

Solutions for Interior and Exterior Lighting

We incorporate precise control of lighting functionalities, such as adaptive headlights, ambient lighting, and dynamic signalling, enhancing the vehicle's visibility, safety, and visual appearance.

Pneumatic Solutions

We develop pneumatic solutions that enhance vehicle performance and include such components as pneumatic suspensions, tire inflation systems, and compressors.

Body Control Modules

Body control units manage various comfort and safety features, such as lighting systems, power windows, central locking, and wipers. We develop BCM hardware (input and output devices) and software with integrated API.

Chassis Control Units

We enable precise control and optimisation of critical chassis systems such as anti-lock braking, electronic stability and traction control. These units utilise advanced algorithms and sensors to enhance the safety and driving experience.

Security Systems for Vehicle Access and Control

Automotive ECU software development services at Promwad enable our clients to implement security systems with encrypted keyless entry, vehicle immobilisation, protection locks and diagnostic capabilities for fault detection and prevention of unauthorised modifications.

Hydraulic Solutions

Our automotive ECU design expertise extends to creating custom hydraulic solutions, including hydraulic braking systems and various components for hydraulic-powered machinery.

We tailor ECUs for electric vehicles (EVs), focusing on battery management systems, powertrain control, regenerative braking, and integration with charging infrastructure to optimise performance and efficiency.

Tech Map in ECU Development


С/C++, C#, Rust


CAN/LIN, Ethernet

Build systems

make, cmake

Frameworks and GUI

QT6, Storyboard, TARA, MicroEj, TouchGfx


NXP, Renesas, TI, Silicon Labs, Infineon, Cypress, Microchip, Nordic


Eclipse-based tools, .NET nanoFramework, Visual Studio, Segger programming tools


Baremetal | RTOS: FreeRTOS, A-FreeRTOS, Zephyr, TiRTOS, Azure RTOS

Ready to unlock the potential of your vehicles with ECU?

ECU-Related Services


Customer requirements elicitation


System architecture design


Functional safety development


Hardware design and reverse engineering


Software and hardware architecture design


Hardware and software verification and validation


Software, hardware, mechanical requirements development


Embedded software development


Unit, integration, system, functional, and HIL testing

We Work With


Mid-sized businesses

We empower businesses creating ECUs for EVs by providing dedicated engineering teams to tackle complex challenges, bridge resource gaps, and drive their growth.



We collaborate with large enterprises offering comprehensive support in ECU software and hardware development projects of any complexity.


Tech Partners

We can be your reliable technology partner, crafting tailored ECU solutions to achieve your objectives. Our team is ready to integrate into your project.

Why Promwad

Cross-functional experience

Whether we work on the individual components or build the entire ECU system, our team analyses the vehicle comprehensively to achieve seamless overall performance and functionality.

Expertise across all vehicles

Our understanding of the ECU specifics in vehicles with internal combustion engines and electric motors is so deep that we can electrify specialised vehicles for our customers.

Safety-focused ECU solutions

Our engineers develop ECU systems up to ASIL-C functional safety level. We employ cutting-edge tools to ensure the quality of automotive ECU development processes.

Our Engagement Models

Time & Material

– Payments for actual hours worked
– Regular reporting of time and results
– Regular communication with the team
– Connecting / disconnecting engineers on request
– Flexible development process

Dedicated Team

– Fixed monthly costs
– Custom-built team with specific competencies
– Fully dedicated engineering team
– Comprehensive IT infrastructure
– Max efficiency for complex projects


– Budget control
– Reduced risk
– Flexible resource allocation
– Clear scope
– Predictable timeline
– Quality control

Do You Need Automotive ECU Development Services?

Drop us a line about your project! We will contact you today or the next business day. All submitted information will be kept confidential.


What are the best practices for version control and configuration management in automotive ECU software development?


Such best practices include utilising a version control system to track software changes, implementing branching and merging strategies, maintaining clear documentation, and conducting regular code reviews.

Configuration management involves:

  • Managing software configurations.
  • Keeping track of software releases.
  • Ensuring proper alignment with hardware components.

What are the key considerations for functional safety in ECU design?


Functional safety is critical to ensure safe and reliable operation. Key considerations include:

  • Identifying potential hazards.
  • Implementing safety mechanisms such as redundancy and fail-safe systems.
  • Conducting thorough risk assessments, following relevant safety standards.
  • Performing rigorous testing and validation to achieve the desired safety integrity level (SIL).

How does ECU development differ for electric vehicles from traditional petrol and diesel engines?


It differs from traditional combustion engine vehicles due to the specific requirements of electric propulsion systems.

ECU design for EVs involves specialised considerations, such as:

  • Battery management
  • Powertrain control
  • Regenerative braking
  • Integration with charging infrastructure

The software development focuses on optimising energy usage, managing battery state-of-charge, and enabling efficient power delivery. Additionally, safety considerations related to high-voltage systems are critical for the operation of EVs.


What are the considerations for energy efficiency and sustainability in HVAC development?


As an HVAC design company, we include these best practices for energy efficiency and sustainability:

  • Incorporating intelligent control algorithms to optimise energy consumption.
  • Utilising advanced sensors for precise temperature and airflow management.
  • Implementing eco-friendly refrigerants.
  • Exploring thermal management techniques.


Sustainable HVAC development also involves the following:

  • Reducing greenhouse gas emissions.
  • Designing systems with recyclable materials.
  • Considering the end-of-life disposal of HVAC components.

What are the latest advancements in HVAC technology and their impact on automotive ECU software development?


The latest advancements in HVAC system design include integrating advanced sensors and actuators, predictive algorithms for optimised performance, smart and connected features for remote control and energy management, and environmentally friendly cooling and heating technologies.

These advancements require accommodating increased complexity, integrating new functionalities, and improving the HVAC solutions’ performance, energy efficiency, and passenger comfort.