This Regulation applies to the behaviour of the steering mechanism of motor vehicles of category M1, and vehicles of category N1, with the maximum. ECE UNIFORM PROVISIONS CONCERNING THE APPROVAL OF: VEHICLES WITH REGARD TO STEERING EQUIPMENT Incorporating: Supplement 1. Regulation No 79 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of vehicles with.

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The energy level to be used for the tests referred to in Paragraphs 5. After any failure in the steering equipment, or the energy supply, it shall be possible after eight full stroke actuations of the service brake control, to achieve at the ninth application, at least the performance r799 for the secondary emergency braking system See table below. This Annex may also be called, by special paragraphs in this Regulation, for safety related functions which are controlled by electronic system s.

In case of a failure within the control transmission, with the exception of those parts listed in paragraph 5.

The vehicle shall be loaded to its technically permissible maximum mass distributed between the axles as declared by the vehicle manufacturer. In the case of axles fitted with ASE, this test shall be repeated with the vehicle loaded to its technically permissible maximum mass and the axle equipped with ASE loaded to its maximum eve load.

A break in the external wiring of the electrical control if fitted.

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The approval authority may then either: Furthermore, it must be possible to control the vehicle without abnormal steering correction. Interconnections Interconnections within “The System” shall be shown by a circuit diagram for the electric transmission links, by a piping diagram for pneumatic or hydraulic transmission equipment and by a simplified diagrammatic layout for mechanical linkages.

Where functions are combined within a single unit or indeed within ecce single computer, but shown in multiple blocks in the block diagram for clarity and ease of explanation, only a single hardware identification marking shall be used.


This shall be verified by the following tests: Our online subscription service, offering immediate access to our extensive library of global vehicle regulations, standards and legislation. The steering equipment shall ensure easy and safe handling of the vehicle up to its maximum design speed or in case of a trailer up to its technically ecce maximum speed. Systems that do not themselves positively actuate the steering system but that, possibly in conjunction with d79 infrastructure features, simply warn the driver of a deviation from the ideal path of the vehicle, or of an unseen hazard, by means of a tactile warning transmitted through the steering control, are also considered to be corrective steering.

Limits defining the boundaries of functional operation paragraph 2. This period must not exceed 10 years counted ecs the time when production is definitely discontinued.

GAR | Steering Equipment

Provisions for Trailers 6. If such systems are provided, they shall not be deactivated during type approval testing of the steering system. No part of the trailer must move more than 0. During the test s the vehicle shall be loaded to its technically permissible maximum mass and its technically permissible maximum load on the steered axle s. Steering effort required to achieve a turning circle of 12m radius with an intact system and 20m radius with a system in the failed condition The above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to steering equipment, been approved in the Netherlands E4 pursuant to Regulation No 79 under approval No The steered wheels shall not be solely the rear wheels.

The test described in paragraph 6. Full power steering systems 7r9 to trailers where the energy necessary for operation is transmitted from the towing vehicle.

Modification and Extension of Approval of the Vehicle Type In the case where the braking system of the vehicle shares the same energy supply as the steering system and there cee a failure in the energy supply, the steering system shall have priority and shall be capable of meeting the requirements of paragraphs 5.


In the event of a failure within the energy transmission, with the exception of those parts listed in paragraph 5. They rr79 include mechanical, electro-pneumatic or electro-hydraulic elements. At one level, driver assistance systems aid the driver in controlling the vehicle. Names and addresses of technical services responsible for conducting approval tests and of 7r9 departments ANNEXES Annex 1 — Communication concerning the approval or refusal or extension or withdrawal of approval or production definitely discontinued of a vehicle type with regard to steering equipment pursuant to Regulation No 79 Annex t79 — Arrangements of approval marks Annex 3 — Braking performance for vehicles using the same energy source to supply steering equipment and braking device Annex 4 — Additional provisions for vehicles equipped with ASE Annex 5 — Provision for trailers having hydraulic steering transmission Annex 6 — Special requirements to be applied to the safety aspects of complex electronic vehicle control systems 0.

The tests described in Paragraphs 6. After that point the trailer must fulfill the condition specified in Paragraph 6. Advanced driver assistance steering systems shall only be approved in accordance with this Regulation where the function does not cause any deterioration in 7r9 performance of the basic steering system.

cee Help Print this page. Priorities of signals on multiplexed data paths shall be stated wherever priority may be an issue affecting performance or safety as far as this Regulation is concerned.

Energy supply The same energy supply may be used for the steering equipment and other systems. An approval number shall be assigned to each type approved.

The normal frequency of these verifications shall be once every two years. However, for trailers with self-tracking steering equipment a test under paragraph 6.