Engineering that Thinks Ahead

Keyless Entry

& Keyless Go.

Start contactlessly. Deploy anywhere.

Contactless vehicle access and start systems for OEM applications – from road to construction site.

With TeraTron’s Keyless Entry & Go systems, you get a flexible vehicle access solution – optionally fully digital and without a traditional key. Whether via smartphone, transponder card, or RF remote control: our technology automatically detects the user and enables convenient unlocking and starting – just like in modern passenger cars, but fully adaptable to any vehicle platform.

Used, for example, in electric delivery vehicles, construction vehicles, special-purpose applications, or urban mobility solutions.

What is

Keyless Entry & Go?

  • Keyless Entry: The vehicle unlocks automatically as soon as you approach with an authorized key, card, or smartphone.
  • Keyless Go: Start at the push of a button – without taking the key out of your pocket, optionally combined with features such as seat occupancy detection.


Combined, the system delivers maximum convenience and security.

More than just keyless.

Your Benefits:

Versatile applications
For passenger cars, commercial vehicles, construction machinery, logistics, and specialty vehicles – seamlessly adaptable to any platform.

Customizable & modular
Interfaces, features, form factors, and housings are precisely tailored to your requirements.

Technology-agnostic
Support for BLE, RFID, NFC, and RF – standalone or combined, depending on your application.

Easy OEM integration
CAN, LIN, or proprietary – our systems integrate seamlessly into existing vehicle architectures.

Scalable production
Suitable for small series and high-volume projects – flexibly scalable with consistently high quality.

Robust & secure
Protected against wind and water (selectable IP ratings), touch-safe, and designed for use in harsh environments.

Technical foundation & system architecture

system architecture.

Keyless Entry & Go systems

Flexible access systems.

Our Keyless Entry & Go systems are modular by design and can be flexibly adapted to your infrastructure – whether via RF, BLE, or RFID/NFC. Below is an overview of available interfaces, hardware requirements, and communication pathways.

Keyless Go protection systems by TeraTron

General interfaces & hardware options.

Our systems support a wide range of industrial-grade interfaces – individually configurable and combinable:

  • Digital inputs:
    → Low-side (ground-switched) & high-side (positive-switched)
  • Digitale Ausgänge:
    → High-Side & Low-Side schaltend
  • High-performance actuation:
    → e.g., full-bridge control for electric motors
  • Communication:
    → CAN, RS485, RS232, SPI, I²C, TCP/IP
    → BLE, RFID, NFC, RF (868 / 916 MHz)
  • Power supply:
    → 12 V, 24 V, and additional customer-specific options
Keyless vehicle access

Unlock the vehicle without any active user interaction.

Supported technologies:

  • BLE (Bluetooth Low Energy)
    → Smartphone: proximity detection via RSSI or geofencing
    Hardware requirements: BLE chip & antennas

  • RFID + RF (remote key fob)
    → Detection via LF antenna (125 kHz)
    → Authentication via RF (e.g., 868 / 916 MHz)
    Hardware requirements: LF antenna + RF transceiver
Keyless-Go-System-TeraTron

Start the vehicle at the push of a button.

Supported technologies:

  • BLE (Bluetooth Low Energy)
    → Smartphone: in-cabin detection via RSSI
    → BLE key: channel sounding for precise positioning
    Hardware requirements: BLE chip & interior antennas

  • RFID + RF (remote key fob)
    → In-cabin detection via small LF antenna (125 kHz)
    → Authentication via RF communication
    Hardware requirements: LF interior antenna + RF transceiver
Control vehicles via app

Operation also possible with NFC-only.

  • RFID & NFC (passive):
    Access or start authorization can be verified even without an active power supply:
    → RFID card / transponder
    → NFC card or NFC-enabled smartphone
    Requirement: appropriate antenna placement in or on the vehicle

Benefits for OEMs & developers

OEMs & developers.

  • Technology of your choice: tailored to your target system, environment, and user behavior
  • Flexible antenna positioning: e.g., door handle, interior, cockpit
  • Full control over functionality and security level

Typical

application areas:

Our keyless access systems are as versatile as their applications. Whether in harsh environments or urban fleet operations – TeraTron technology can be integrated into virtually any type of vehicle.

Commercial & logistics vehicles

Ideal for parcel delivery and fleet logistics – secure, efficient, and automated:

  • Automatic locking and unlocking during parcel handling
  • Control of partition systems & cargo boxes
  • Fleet management ready (e.g., via BLE, app, or RF)

Micromobility & e-mobility

Space-saving access solutions for urban mobility:

  • Ideal for e-cargo bikes, micro vehicles, and sharing systems
  • Passive keyless entry via NFC or RFID
  • Authentication even with a depleted key battery

Recreational vehicles & motorhomes

Enhanced comfort and security for mobile travel:

  • Control of doors, steps, and storage compartments
  • Central locking or independent control per module
  • Keyless entry, e.g., via RFID card or smartphone

Special vehicles & industrial applications

Tailored solutions for specialized vehicles:

  • Aircraft tow tractors, forklifts, and defense vehicles
  • Custom security & access solutions
  • High flexibility in interfaces and housing designs

Trailers & semi-trailers

Access control for trailers, vehicle transporters, and mobile units:

  • Protection against unauthorized access to cargo areas
  • Compatible with existing truck electronics
  • Modular integration into towing vehicles or external control units

Agricultural & construction machinery

Robust systems for extreme conditions – vibration-resistant and dirt-resistant:

  • Keyless access and start – operable even with gloves
  • Integrated immobilizer function & CAN connectivity
  • Suitable for tractors, harvesters, excavators, and forestry vehicles

Why partner with TeraTron?

Proven technology

Our systems are deployed in tens of thousands of vehicles worldwide – proven, robust, and field-tested

Flexible & adaptable

From firmware customization to housing modifications: we adapt to your project

Fast & direct

Short decision paths, direct communication with developers, and fast implementation cycles

Customer-focused & solution-driven

Your individual solution is our priority. We speak your language – both technically and commercially.

Made in Germany

Development & production in Gummersbach – for short lead times
and full transparency

Let’s talk about your project.

Ready for the keyless advantage?

Whether it’s a vehicle fleet, specialized machinery, or series production vehicles – with our Keyless Entry & Go systems, you make mobility more intuitive, secure, and efficient.

Benefit from our experience, our speed of development, and our uncompromising commitment to quality – Made in Germany.

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