What is ISO 16844-4 - Display unit communication interface of tachograph system about?
ISO 16844-4 is the fourth part of the ISO 16844 multi-series regarding tachograph systems in road vehicles.
ISO 16844-4 specifies the CAN-based data communication between the display unit and other devices connected to an SAE J1939-based in-vehicle network. The provided requirements and recommendations cover physical, data link, network, and application layers according to the OSI reference model.
Additionally, ISO 16844-4 specifies the parameter groups, which are supported.
Who is ISO 16844-4 - Display unit communication interface of tachograph system for?
ISO 16844-4 on tachograph systems in road vehicles is useful for:
- Automakers
- Taxi and cab service providing organizations
- Courier and delivery service providing organizations
- Vehicle rental service providers
- Automobile engineers
Why should you use ISO 16844-4 - Display unit communication interface of tachograph system?
The digital tachograph concept is based on recording equipment storing data, related to the activities of the various drivers driving the vehicle, on which it is installed. The display unit provides the driver and other individuals responsible for the vehicle with important information regarding the vehicle and the driver’s schedule.
ISO 16844-4 provides you with detailed guidance on integrating of controller area network physical layer, data link, transport layer, and application layer. These guidelines of ISO 16844-4 ensure your display unit communication interface for tachograph systems operates efficiently.
What’s changed since the last update?
BS ISO 16844-4:2022 supersedes ISO 16844‑4:2013, which has been technically revised.
The main changes are as follows:
- Part 5 of this series (ISO 16844‑5) has been removed due to its technical irrelevance
- Correction of the typos and mistakes in the text
- Adoption of the content according to the new version of the ISO guidelines
- Adoption of the content according to the new technical requirements
- Alignment of the content regarding the referred standards