ISO 16844-2:2022
(Main)Road vehicles - Tachograph systems - Part 2: Recording unit communication interface
Road vehicles - Tachograph systems - Part 2: Recording unit communication interface
This document specifies the electrical interfaces of the data and the service interfaces. The electrical interfaces to the CAN-based in-vehicle networks are not in the scope of this document.
Véhicules routiers — Systèmes tachygraphes — Partie 2: Interface de communication de l'unité d'enregistrement
General Information
- Status
- Published
- Publication Date
- 10-Apr-2022
- Technical Committee
- ISO/TC 22/SC 31 - Data communication
- Drafting Committee
- ISO/TC 22/SC 31/WG 4 - Network applications
- Current Stage
- 6060 - International Standard published
- Start Date
- 11-Apr-2022
- Due Date
- 15-Oct-2021
- Completion Date
- 11-Apr-2022
Relations
- Consolidated By
ISO 16924 - Natural gas fuelling stations - Liquefied natural gas (LNG) stations for fuelling road vehicles - Effective Date
- 05-Nov-2022
- Effective Date
- 23-Apr-2020
Overview
ISO 16844-2:2022 is an international standard specifying the recording unit communication interface for tachograph systems installed in road vehicles. This third edition update focuses exclusively on the electrical interfaces of the data and service connectors used by digital tachographs, excluding the electrical interfaces associated with CAN-based in-vehicle networks. It serves as a critical guideline for manufacturers and developers to ensure consistent, reliable communication between a vehicle’s recording equipment and external interfaces, facilitating proper data access and control.
The digital tachograph captures detailed data on driver activities and vehicle operations, providing valuable information to drivers, transport companies, authorities, and workshops. ISO 16844-2:2022 defines connector specifications, electrical requirements, and signal characteristics fundamental to the interface’s functionality.
Key Topics
Connector Standards
The recording equipment connector must comply with ISO 16844-1, ensuring compatibility across tachograph systems. The connector is divided into two parts:- Part A: Used for power supply and CAN connection, with electrical details harmonized with ISO 16844-4.
- Part B: Handles tachograph to motion sensor electrical connections with specific voltage, pulse, and frequency parameters.
Electrical Requirements
Precise voltage levels, current values, and signal characteristics are specified for various pins on the Part B connector. These include:- Positive and negative power supply pins.
- Speed signal and real-time data pins.
- Speed pulse output with defined pulse durations and frequencies.
- Optional distance signal output providing pulses representing movement increments.
Signal Timing and Circuitry
Detailed timing diagrams and circuit schematics demonstrate signal delays, jitter allowances, and pulse output behavior to standardize communication reliability. Relationships between vehicle speed, tachograph constant, and pulse timing are defined with formulae ensuring consistent data interpretation.Scope Exclusions
This standard does not address electrical interfaces linked directly to CAN-based networks inside vehicles, which are covered in other parts of the ISO 16844 series.
Applications
ISO 16844-2:2022 is essential for:
Tachograph Manufacturers
Designing recording units that adhere to international electrical interface standards for interoperability and regulatory compliance.Vehicle OEMs
Implementing tachographs with interface connectors meeting specified electrical requirements to ensure seamless integration with in-vehicle sensors and external diagnostic systems.Transport Companies and Regulatory Authorities
Accessing digital tachograph data for driver monitoring, compliance auditing, and transport safety enforcement, relying on standardized interfaces to read and download data securely.Workshops and Service Providers
Utilizing compatible equipment to service, calibrate, or inspect tachographs via defined data and service connectors.
Related Standards
- ISO 16844-1: Defines the recording equipment data and service connector physical and mechanical specifications.
- ISO 16844-3: Covers the communication interface between the motion sensor and the recording equipment.
- ISO 16844-4: Specifies the CAN-based data interface including parameter groups for broader vehicle communication.
- ISO 16844-7: Addresses data identifiers for optional service interfaces.
- Regulation (EU) No 165/2014: European regulation stipulating requirements for recording equipment in road transport enforcement.
By following ISO 16844-2:2022, stakeholders in the commercial transport and vehicle manufacturing sectors can ensure tachograph systems communicate correctly and comply with international standards. This contributes to safer transport operations, effective driver activity monitoring, and regulatory adherence worldwide.
Frequently Asked Questions
ISO 16844-2:2022 is a standard published by the International Organization for Standardization (ISO). Its full title is "Road vehicles - Tachograph systems - Part 2: Recording unit communication interface". This standard covers: This document specifies the electrical interfaces of the data and the service interfaces. The electrical interfaces to the CAN-based in-vehicle networks are not in the scope of this document.
This document specifies the electrical interfaces of the data and the service interfaces. The electrical interfaces to the CAN-based in-vehicle networks are not in the scope of this document.
ISO 16844-2:2022 is classified under the following ICS (International Classification for Standards) categories: 43.040.10 - Electrical and electronic equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 16844-2:2022 has the following relationships with other standards: It is inter standard links to ISO 16924, ISO 16844-2:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase ISO 16844-2:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 16844-2
Third edition
2022-04
Road vehicles — Tachograph
systems —
Part 2:
Recording unit communication
interface
Véhicules routiers — Systèmes tachygraphes —
Partie 2: Interface de communication de l'unité d'enregistrement
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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Email: copyright@iso.org
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.1
5 Requirements . 2
5.1 Connector . 2
5.2 Electrical connection . 2
5.2.1 Connector — Part A . 2
5.2.2 Connector — Part B . 2
Bibliography . 5
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 31,
Data communication.
This third edition cancels and replaces the second edition (ISO 16844-2:2011), 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 to the referred standards.
A list of all parts in the ISO 16844 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
This document supports and facilitates the communication between electronic control units (ECUs)
and a digital tachograph.
The digital tachograph concept is based upon a recording equipment storing data, related to the
activities of the various drivers driving the vehicle, on which it is installed.
During the normal operational status of the recording equipment, data stored in its memory are
accessible t
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ISO 16844-2:2022 표준은 도로 차량의 타코그래프 시스템에 관한 중요한 문서로, 기록 장치의 통신 인터페이스에 대한 전기적 요구 사항을 명확히 규정하고 있습니다. 이 문서는 데이터 및 서비스 인터페이스의 특정 전기적 인터페이스를 명시하며, 이는 차량 내 데이터 통신의 일관성을 보장하는 데 필수적입니다. 이 표준의 강점 중 하나는 산업 전반에 걸쳐 통일된 통신 프로토콜을 제공한다는 점입니다. 이를 통해 다양한 제조사 및 모델 간의 호환성을 높이고, 차량 운전 및 관리에 있어 효율적인 데이터 수집과 처리가 가능해집니다. 또한, 타코그래프 시스템의 신뢰성을 개선하고 운영비 절감을 통해 전체적인 운송 산업의 품질 향상에 기여할 수 있습니다. ISO 16844-2:2022는 특히 전기적 인터페이스에 중점을 두고 있으며, 이는 기술적 세부 사항이 필수적으로 요구되는 분야에서 더욱 중요한 역할을 합니다. 이로 인해 차량 및 운전 환경의 안전성과 효율성을 증대시키는 효과가 있습니다. 전기적 인터페이스 관련 표준이 더해짐으로써 미래의 전기차 및 자동화된 운전 시스템에 대한 명확한 지침을 제공하게 됩니다. 따라서 ISO 16844-2:2022는 타코그래프 시스템의 통신 구조에 대한 이해를 심화하고, 나아가 업계 내에서 표준화를 통한 상호 운영성을 촉진하는 데 중요한 문서로 자리잡고 있습니다. 이 표준은 도로 차량과 그 운전자의 데이터 통신을 한층 더 발전시키는 중요한 기반을 제공한다고 할 수 있습니다.
Die ISO 16844-2:2022 ist eine umfassende Norm, die sich auf Tachograph-Systeme in Straßenfahrzeugen konzentriert, insbesondere auf die Kommunikationsschnittstelle der Aufzeichnungseinheit. Der zentrale Fokus dieses Dokuments liegt auf den elektrischen Schnittstellen der Daten- und Dienstschnittstellen, was für die zuverlässige Kommunikation und Datenerfassung in modernen Fahrzeugen von entscheidender Bedeutung ist. Die Stärke der ISO 16844-2:2022 besteht darin, dass sie klare Spezifikationen für die elektrischen Schnittstellen bereitstellt, die für die Implementierung und Wartung von Tachograph-Systemen unerlässlich sind. Diese Norm fördert die Interoperabilität und sorgt dafür, dass verschiedene Hersteller ihre Systeme so gestalten können, dass sie nahtlos zusammenarbeiten. Darüber hinaus trägt die Standardisierung der Kommunikationsschnittstelle entscheidend zur Effizienz und Sicherheit im Straßenverkehr bei, indem sie die Genauigkeit der Aufzeichnungen verbessert und Manipulationsversuche erschwert. Ein weiterer wichtiger Aspekt ist die Relevanz dieser Norm in der aktuellen Automobilindustrie, da sie den zunehmenden Anforderungen an digitale Aufzeichnungssysteme und die Entwicklung intelligenter Verkehrssysteme Rechnung trägt. Obwohl die elektrischen Schnittstellen zu den CAN-basierten In-Vehicle-Netzwerken nicht im Geltungsbereich dieses Dokuments enthalten sind, ist die ISO 16844-2:2022 dennoch von zentraler Bedeutung für die Entwicklung zukunftssicherer Fahrzeuge und Technologien. Insgesamt ist die ISO 16844-2:2022 ein unverzichtbares Dokument, das nicht nur die technische Basis für die Kommunikation von Tachograph-Systemen definiert, sondern auch einen wesentlichen Beitrag zur Sicherheit und Effizienz im Betrieb von Straßenfahrzeugen leistet.
ISO 16844-2:2022 establishes critical specifications for the communication interface of tachograph systems in road vehicles, particularly focusing on the recording unit. The document meticulously outlines the electrical interfaces related to data and service interactions, which are essential for the effective operation of tachograph systems. One of the primary strengths of ISO 16844-2:2022 is its precise definition of the communication protocols, which enhance interoperability among various tachograph recording units and in-vehicle systems. This standardization plays a vital role in ensuring that manufacturers and developers meet a common framework, thus fostering compatibility and reducing the likelihood of malfunctions or miscommunication between devices. The scope of ISO 16844-2:2022 is particularly relevant in today's automotive environment, where the integration of advanced technologies is on the rise. By specifying the interfaces without delving into the CAN-based in-vehicle networks, the standard allows for clear delineation of the areas that need focus, while also maintaining the flexibility necessary for future advancements in vehicle communication systems. Furthermore, this document is essential for ensuring compliance with regulatory requirements, promoting efficiency in data handling related to vehicle tracking and driver behavior analysis. The attention to detail in specifying both data and service interfaces ensures that all necessary interactions are covered, making it a cornerstone for manufacturers aiming to create robust tachograph systems. In essence, ISO 16844-2:2022 stands out as a significant benchmark for communication interfaces in tachograph recording units, with its strengths lying in promoting interoperability, compliance, and clarity within the evolving landscape of road vehicle technologies. The document’s relevance is underscored by its proactive approach to addressing the complexities of vehicle communication systems, making it an indispensable reference for industry stakeholders.
ISO 16844-2:2022は、道路車両におけるタコグラフシステムの一部として、記録ユニットの通信インターフェースに焦点を当てた重要な標準です。この文書は、データとサービスインターフェースの電気的インターフェース仕様を定めています。特に、CANベースの車両内ネットワークへの電気的インターフェースは本標準の範囲外として明確に定義されています。 この標準の強みは、タコグラフシステムの統一性と互換性を促進する点にあります。ISO 16844-2:2022は、メーカーや開発者が一貫した通信インターフェースを実装するための明確なガイドラインを提供し、業界全体での効率的なデータ交換を可能にします。また、この標準は、タコグラフとその周辺機器との相互運用性を保障し、運輸業界の規制遵守を支援します。 さらに、本標準は、従来の技術からの移行をスムーズに行うためにも重要です。ISO 16844-2:2022は、タコグラフシステムの新たな革新や技術的進化に対応する基盤を提供し、将来にわたる発展を容易にします。このように、標準は道路車両のデジタル化に資する重要な要素であり、全体として非常に関連性の高い文書と位置付けられています。 ISO 16844-2:2022は、タコグラフの効率的な運用を可能にし、運輸業界の発展に寄与するとともに、その重要性は今後ますます高まることでしょう。
La norme ISO 16844-2:2022 se concentre sur les systèmes de tachygraphes pour les véhicules routiers, spécifiquement sur l'interface de communication de l'unité d'enregistrement. L'étendue de cette norme est clairement définie, spécifiant les interfaces électriques des données ainsi que les interfaces de service. Cependant, il est important de noter que les interfaces électriques aux réseaux de véhicules basés sur le CAN ne sont pas incluses dans le périmètre de ce document. Les principaux points forts de la norme ISO 16844-2:2022 résident dans sa capacité à standardiser les communications entre les unités d'enregistrement et les autres systèmes. Cela facilite non seulement la compatibilité entre différents fabricants, mais également l'interopérabilité des systèmes qui utilisent cette norme. La précision dans la définition des interfaces électriques permet une meilleure intégration et une réduction des erreurs de communication, renforçant ainsi la fiabilité des données collectées. La pertinence de cette norme est indéniable dans le contexte actuel où la transparence et la fiabilité des informations enregistrées par les tachygraphes sont cruciales pour le secteur du transport. L'adoption de l’ISO 16844-2:2022 contribue à une meilleure gestion des données de conduite, favorisant ainsi la conformité aux réglementations en vigueur et améliorant la sécurité routière. En somme, la norme ISO 16844-2:2022 représente un élément clé dans l'harmonisation des communications pour les systèmes de tachygraphes, apportant des avantages significatifs tant pour les fabricants que pour les utilisateurs finaux dans l'industrie du transport routier.
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