dfreeeze: App solution for controlling auxiliary heaters in cars

digades proprietary development for range-independent control of vehicle components

Limitless comfort thanks to dfreeeze for cars

dfreeeze is a universally applicable connected car solution for simple and range-independent control of auxiliary heating and ventilation. A smartphone app and the corresponding receiver in the car communicate with the auxiliary heater's receiver in the vehicle. The auxiliary heater can still be operated by radio remote control. Auxiliary heater and ventilation are controlled via a server using an app/web app from a smartphone, tablet or PC. dfreeeze is based on the digades "D200" platform.

Functions of dfreeeze

Arrive comfortably and safely

In addition to immediate and range-independent heating/ventilation of the car, dfreeeze provides the possibility of directly setting the desired departure time. The system automatically calculates the required heating intensity and duration. This ensures, that the car is optimally preheated and freed of ice and snow at departure time. The same applies to the ventilation function in summer time. For a quick check in between, dfreeeze, in conjunction with the associated temperature sensor, offers the possibility of checking the temperature in the car as well as the status of the system.

components of the dfreeeze system

  • dfreeeze receiver

  • dfreeeze App for Android, iOS, Web

  • dfreeeze backend

  • Accessories (windscreen adhesive antenna, cable harness, plug and socket housing)

A man operates his auxiliary heater via dfreeeze on his tablet

The backend: dfreeeze server

Stable, secure processes

The server enables a highly secure payment process. Additional functions: user management and administration, configuration management, display of user conflicts during simultaneous use and activation/deactivation of the SIM chip, authorization checks to monitor the use of the SIM.

server-based structure

Advantages of the server-based concept

  • In-App send/receive control commands and feedback messages
  • Response times < 10 seconds through deterministic, non-load-dependent, connection-oriented data transfer
  • High throughput rates through direct connection (at least 500 commands/minute)
  • Increased security
  • High availability, also internationally through close cooperation with network operators
  • Increased user-friendliness through the use of familiar interfaces (authentication) in the app and web portal
  • Controllable costs

The hardware: dfreeeze module

Automotive-certified heart of the dfreeeze system

The robust, AECQ-certified control unit connects the server and the auxiliary heater with each other. The communication with the server takes place via SMS and TCP/IP. Due to the pre-installed eUICC-SIM chip, manual intervention by the end user is no longer necessary, and a subsequent change of provider is possible. The miniaturized electronics, coupled with minimal power consumption, allows the installation in any vehicle. The implementation of a 4G variant is already planned through nested design.

Technical details receiver

  • Transmission frequency: Quad-Band
  • Operating voltage: 12 V DC (9 to 16 V DC)
  • Quiescent current consumption: <5 mA (Stand by Mode)
  • max. output current: 200 mA (12 V DC)
  • Working temperature: -40°C to +85°C
  • Connections
    • Antenna FAKRA standard
    • 6-pin system plug (12V DC (vehicle on-board power supply)
    • W-Bus/LIN
    • Switching output
    • Clocks/button/alarm input
  • Dimensions L x W x H: 88 x 65 x 20 mm
  • Weight: <100 g
  • Protection class: IP43
dfreeeze receiver for controlling the auxiliary heating

The software: dfreeeze App

Easy use and configuration

The app's intuitive design allows the auxiliary heater to be controlled quickly and range-independently. Even several vehicles can be managed in the app. The freely selectable start page and the use of an android widget guarantee easy operation.

dfreeeze App Dashboard
dfreeeze App - register vehicle
dfreeeze App - Programming auxiliary heating
dfreeeze App - Control
dfreeeze App - Settings

Available on smartphone, tablet, PC:

  • iOS App
  • Android App
  • Web-App

Functions:

  • Control auxiliary heating (heating/ventilation/automatic)
  • Program departure time
  • Request temperature
  • Display system status
  • Make settings

experience and competence.

More then 30 years of development and production.
Intelligent, high-quality designed products.

A motorcycle with dguard rides fully loaded on a road
Intelligent emergency call, manual emergency call, theft warning and touring roadbook for retrofitting or as integrated version
Clever emergency call in case of an accident - even if the driver is unconscious. dguard automatically detects when the motorcycle is involved in an accident situation. The system immediately and directly alerts the emergency call center to quickly call for professional help. Therefore, it sends the current coordinates&hellip;

Contact us

You pose the question, we provide the solution.

Write us using the contact form below or by email.
 

Project enquiries

Business customers
Yes, I have read the Privacy Policy note and I consent that the data provided by me, including the contact data, for the processing of the inquiry and in case of questions are electronically collected and stored. My data will only be used strictly for my request and will not be passed without my consent. This consent can be revoked any time with effect for the future.'
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Always on the pulse of time.

We are always on the move.
Innovative in all company departments.

The top of the state of the art.

We look for your clever solution. Functional, safe and reliable.

digades close-up production of a product developed in-house.
You expect production at the highest level? We rely on production according to a safety concept, for guaranteed minimum field failure rates.
Development staff at digades discuss a project
Are you looking for product optimization or for a new development? We rely on our RF competence, with our own pre-development and validation.

Realization at the highest level.

We work according to the latest standards. IATF, IPC, ISO, FUSI ... - from prototype to series.

digades lives quality in all company processes
More than just standard.
digades Software Validation: Developer turns the controller on the test device
Optimum performance: high ranges with low energy consumption
Auxiliary heating radio remote control from digades
For almost 30 years now, we have been connecting products in various applications.
a digades product is validated
Hardware and software in top form. Not only perceived, but tested.
digades logistics solutions - Warehouse in the production centre
With us, your products will always arrive reliably and exactly at the desired time. You can count on that.
Functional safety according to ISO26262
We ensure safety in series.
Prototyping and fixture construction at digades
Do you need technologies that are precisely tailored to your product?
digades close-up production of a product developed in-house.
Assembly of the circuit boards for your product in small, medium and large series.
SMD
Manual inspection with digades
We develop your highly efficient, economical and exactly fitting production concept
digades synthetic resin casting plant
We have something against corrosion. Our special synthetic resin casting technique.
IATF Seal
We support you with the worldwide certification of your product.
digades circuit board mounting machine
From sample to mass production.