Embedded Controls • Vehicle Systems • Energy • Telematics

Engineering across the vehicle system — from concept to working hardware.

Green Prefer brings together embedded software, vehicle controls, powertrain integration, diagnostics, communications, alternative-fuel systems and connected-vehicle technologies. The work is centered on turning system requirements into practical designs, working prototypes and validated vehicle solutions.

01Energy / VehicleBattery • fuel • powertrain
02ECU / ControlsEmbedded software • CAN / J1939
03Diagnostics / DataUDS • telemetry • cloud

Engineering Services

Practical support across vehicle and energy technology.

PT

Powertrain Design

We specialize in designing, developing, and validating powertrain systems for various alternative fuel vehicles, including Series and Parallel hybrids, CNG, Hydrogen, Fuel Cell, and Pure Electric Vehicles. Our services also include rapid prototyping and production-level software development using model-based design, leveraging cutting-edge microcontrollers and adhering to ISO 26262 functional safety standards.

BD

Business Development

Our team manages investor relations and provides comprehensive technical support, covering pre- and post-sales services. We offer access to a diverse range of powertrain components from multiple vendors. Our multilingual experts facilitate international investor and supplier relations, while our strategic partnerships in Asian markets, including India, unlock new opportunities.

PS

Product Support

Our seasoned team demonstrates in-depth expertise in control algorithms, thermal management, Battery Management Systems, CCS charging, and vehicle-level architecture. We design and develop service tools compliant with regulatory protocols like UDS and J1939. Additionally, we assist in establishing end-of-line procedures to streamline production processes.

CS

Consulting

Our team of experts delivers comprehensive consulting services across embedded software, automotive control design, telematics, and infotainment systems. To enhance customer support, we've developed proprietary diagnostic tools. Our services also include fleet management and strategic IT solutions through our trusted partnerships.

Technical Capability

A broad engineering stack connected by the vehicle.

Green Prefer can work at the individual ECU level, across vehicle networks, or at the system-integration level. This allows mechanical, electrical, controls, embedded-software and connected-vehicle problems to be considered together rather than as isolated pieces.

Vehicle SystemsEV, hybrid, CNG, hydrogen, fuel-cell and conventional powertrain integration
EnergyBattery, charging, inverter, DC/DC and thermal-management interfaces
EmbeddedEmbedded C/C++, MCU peripherals, RTOS, low-level drivers and controller architecture
ControlsModel-based design, control algorithms, calibration and production-oriented implementation
NetworksCAN, J1939, UDS, RS485, diagnostics, data acquisition and gateway concepts
ConnectedMQTT, cloud telemetry, remote monitoring, OTA concepts and fleet data
ValidationSIL, HIL, bench testing, integration testing, commissioning and field troubleshooting

Selected Projects

Engineering work spanning hardware, software and vehicle integration.

These projects represent different parts of the engineering stack. More technical details, photographs, architecture diagrams and results can be added as each project is documented.

01

Alternative Fuel • Storage • Vehicle Packaging

CNG and Hydrogen CNG Back-of-Cab Fuel Storage System

Development of a back-of-cab fuel-storage concept for commercial vehicles using high-pressure gaseous fuel. The work considers tank arrangement, packaging, structural interfaces, serviceability, fuel-system integration and the practical requirements of bringing a storage system onto a working vehicle platform.

CNGHydrogenFuel StorageVehicle Integration
Engineering focus
  • Back-of-cab packaging and usable vehicle space
  • High-pressure fuel-system interfaces and component integration
  • System-level requirements, architecture and validation considerations
  • Design for commercial-vehicle installation and service
02

Electrification • Controls • Commercial Vehicles

F600 EV Conversion for Refuse Vehicles

Electric conversion architecture for a Ford F600-class refuse application, bringing together battery energy, traction power, charging, auxiliary loads, vehicle controls and the requirements of a demanding stop-and-go work cycle.

EV ConversionF600RefusePowertrain
Engineering focus
  • Vehicle-level EV powertrain architecture
  • Battery, inverter, motor and charging interfaces
  • Auxiliary and body-equipment considerations for refuse duty
  • Controls, diagnostics and integration testing
03

Embedded Software • STM32 • Architecture

STM32 Based Display and Code Architecture

Re-architecture of an embedded display platform around an STM32 microcontroller, with emphasis on maintainable firmware structure, hardware abstraction, communications, display behavior and a code base that can evolve as product requirements change.

STM32Embedded CCANFirmware Architecture
Engineering focus
  • Layered firmware and reusable software architecture
  • CAN communications and vehicle-data handling
  • Display/application separation and hardware abstraction
  • Bench development, debugging and production-oriented code structure
04

Knowledge Sharing • Training • Engineering Community

Podcasts, Technical Courses and Mentoring

Technical communication is another part of the work: explaining vehicle controls, embedded systems, electrification and engineering practices in a way that is useful to engineers, students and people entering the industry.

Technical EducationCoursesMentoringPodcasts
Topics can include
  • EV and alternative-fuel vehicle architecture
  • Embedded controls, CAN/J1939 and diagnostics
  • Model-based development and practical validation
  • Engineering career guidance and hands-on project mentoring

Requirements → Design → Build → Validate

Engineering that moves from a defined problem to a working system.

1

Understand

Translate vehicle, product and customer needs into clear technical requirements.

2

Architect

Define interfaces, control concepts, hardware/software boundaries and system behavior.

3

Implement

Develop embedded software, models, diagnostics, tools and integration hardware as required.

4

Validate

Test the system at the bench, in integration and on the vehicle, then refine from measured results.