OTA/FOTA

AVIN Systems offers comprehensive FOTA update solutions across Master and Target ECUs, compatible with both proprietary and opensource update server ecosystems. Our services include UCM Master, diagnostic services, deltabased installation, and robust rollback support.

Service Highlights

End-to-End FOTA Architecture Support
Complete solutions covering backend servers, Master ECUs, Target ECUs, and OTA campaign orchestration.
Secure, Encrypted Update Delivery
Robust cryptographic protection using HSMs, secure download mechanisms, and intrusion detection via AIDSM.
Proven Support for HPC & Multi-ECU Environments
Reliable integration of FOTA Master on high-performance controllers with coordinated updates to all vehicle ECUs.
Safe & Reliable ECU Update Strategies
A/B memory swap, validation checks, and strong rollback mechanisms ensuring safe on-vehicle update deployment.
Flexible Connectivity & Diagnostics Support
OTA updates via CAN, Ethernet, Wi-Fi, 4G, and 5G with full diagnostics-driven flash programming.
Scalable & OEM-Ready Implementation
Designed for modern automotive platforms, supporting both proprietary and open-source FOTA ecosystems.

Service offerings

We provide complete architectural support covering all elements inside and outside the vehicle:

FOTA Server Authoring & Campaign Orchestration (Off-Vehicle)

  • Setup and integration of FOTA backend servers, supporting both proprietary OEM servers and open-source ecosystems.
  • Creation of campaign orchestration workflows for controlled rollout, scheduling, and monitoring of software updates.
  • Support for version management, update distribution, metadata generation, and secure package handling.

FOTA Master ECU (In-Vehicle, Typically on HPC)

  • Implementation and integration of FOTA Master services running on HPC controllers.
  • Coordination of update distribution to all Target ECUs within the vehicle.
  • Management of communication with backend servers via telematics or connectivity units.

FOTA Target ECUs (In-Vehicle)

  • End-to-end support for receiving, validating, storing, and installing updates on Classic or Adaptive ECUs.
  • Scalable architecture supporting multiple ECU domains and vehicle models.

Our Master ECU implementation ensures secure, fault-tolerant, and reliable update delivery across the vehicle network.

  • Server Integration:
    Seamless communication with OEM proprietary servers or open-source FOTA backend platforms.
  • Adaptive Platform Functional Cluster Support:
    Development and integration of UCM Master and associated Functional Clusters required for managing update workflows.
  • Reliable Connectivity via CCU:
    Data transfer through Ethernet, Wi-Fi, 4G, or 5G, depending on the telematics architecture.
  • Secure Download Mechanisms:
    Implementation of Crypto Functional Cluster and HSM integration to ensure encrypted downloads, authentication, and secure key handling.
  • Intrusion Detection & Monitoring:
    Support for AIDSM FC (Adaptive Intrusion Detection and Security Monitoring) to detect abnormal activity during update processes.

Our Target ECU services ensure safe update delivery, installation, and validation at the ECU level.

  • Memory A/B Swap Strategy:
    Implementation of dual-bank strategies to allow safe updates with rollback protection.
  • Flexible Communication Interfaces:
    Software download support via CAN, Ethernet, or mixed-network communication.
  • Diagnostic Communication Support:
    Utilization of DCM download services, diagnostic sessions, and buffer storage for safe image transfer.
  • Programming via FOTA Handler CDD:
    ECU reprogramming using Custom Device Drivers (CDD) and NVM services for robust data handling.
  • Signature & Compatibility Validation:
    Cryptographic signature checks, version compatibility, and metadata validation before activation.
  • Safe-State Activation:
    Update activation only when the vehicle is in a validated safe state (e.g., engine OFF, parking brake applied).
  • Reliable Rollback Mechanism:
    Automatic fallback to the previous software version in case of validation failures or runtime anomalies.

Adaptive Platform Functional Clusters (FCs):

  • UCM Master
  • UCM
  • SM (State Management)
  • CM (Configuration Management)
  • EM (Execution Management)
  • Diagnostic Communication (customized)

Custom Components & Services:

  • Flashing Adapter (D-PDU API)
  • Driver Interaction Modules
  • Vehicle State Manager
  • OTA Client
  • Delta Installer (open-source based)
  • Secure download using HSM services 
  • NVM stack integration (Bootloader or Application mode)

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Our Experience

Our team brings deep technical expertise and a commitment to quality in every project.

End-to-End FOTA Architecture Expertise
End-to-End FOTA Architecture Expertise
Master ECU Update Management Proficiency
Master ECU Update Management Proficiency
Target ECU Flashing & Update Handling Expertise
Target ECU Flashing & Update Handling Expertise
Secure Connectivity & Cryptographic Validation Skills
Secure Connectivity & Cryptographic Validation Skills
Diagnostics-Driven Download & Programming Expertise
Diagnostics-Driven Download & Programming Expertise
Safe-State Update Activation & Rollback Capability
Safe-State Update Activation & Rollback Capability
Multi-Domain ECU Integration Experience
Multi-Domain ECU Integration Experience

Tool Chain

AVIN Systems uses industry-standard platforms and components to implement secure and reliable FOTA solutions.

Functional Safety
Digital Cockpit and Infotainment Applications
Powertrain, Safety & Chassis ECU Application Development
Body/Central Gateway/Zonal Controller ECU Application Development Services
Cybersecurity Services
QMS ASPICE
Charging Station
Cloud-Based Automotive Application Service
OTA/FOTA
AUTOSAR Adaptive Platform Integration Services
BSP (Board Support Package) Development
AUTOSAR MCAL and CDD Development
Hardware Abstraction and OS Abstraction
Cloud-Native Development
Autonomous Driving Applications
Fleet Management
ADAS Application
Model Based Development
AUTOSAR Adaptive Platform Development Services
AUTOSAR Classic Platform Integration services
EV/BMS Application
System Testing / HIL Testing Services
IoT Services
Intelligent Solutions-AI
Vision System Services

Case Studies

Frequently Asked questions

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OTA (Over-the-Air) or FOTA (Firmware Over-the-Air) refers to the wireless delivery of software updates, patches, or new features to electronic control units (ECUs) in vehicles without requiring a physical connection.

OTA / FOTA services allow automakers and suppliers to:

  • Fix software bugs remotely.
  • Improve vehicle performance.
  • Add new features post-production.
  • Ensure security updates are deployed quickly.
  • Reduce service center visits and maintenance costs.

Typical services include:

  • Secure firmware update management.
  • Vehicle communication management (backend integration).
  • Version control and rollback support.
  • Update validation and testing.
  • Encryption and cybersecurity compliance.
  • Scheduling and deployment automation.

OTA / FOTA enables continuous improvement of the vehicle software, reducing downtime and enhancing safety, convenience, and functionality without requiring a visit to a service center.

Our OTA / FOTA solutions use end-to-end encryption, secure authentication, and compliance with ISO/SAE 21434 cybersecurity standards to prevent unauthorized access or tampering.

Yes. OTA / FOTA solutions can be integrated with both AUTOSAR Classic and Adaptive platforms, ensuring smooth firmware delivery and system updates across multiple ECUs.

Yes. Our solutions support rollback mechanisms, allowing the vehicle to revert to a previous stable version if an update fails or causes unexpected behavior.

By enabling remote updates, OEMs and Tier-1 suppliers can deploy fixes and new features faster without waiting for physical recalls or service center interventions.

Yes. We monitor update performance, handle troubleshooting, and provide maintenance for OTA / FOTA systems to ensure reliable long-term operation.

Automotive OEMs, Tier-1 suppliers, and software teams developing connected vehicles, ADAS, or autonomous systems that require secure, efficient, and scalable software update mechanisms.

A Niche like AVIN become your SDV Partner.

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