Proposed changes to the draft amendment to UN R79 on automatically commanded steering functions.

Changes proposed by Germany to the draft ACSF amendment (document ACSF-05-16)

Proposal to include three-wheeled category L vehicles within the scope of ABS testing, to align UN R78 with the provisions for anti-lock braking systems used in other regulations, including specific exemptions for certain off-road vehicles as incorporated in UN Regulation No. 13, and to allow for Emergency Stop Signal (ESS) systems on motorcycles and related vehicles. The proposal also clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle.

Proposal to delete provisions for electronic stability and brake-assist systems from UN R13-H as part of their transposition into new stand-alone regulations. This proposal also clarifies the requirements on electromagnetic compatibility via reference to Regulation No. 10.

Proposal to introduce provisions for the approval of replacement brake discs for L-category (motorcycle and related) vehicles, to remove tables specifying general values for replacement discs and drums that are identical to the original, change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm, and clarify the text in order to avoid additional administrative and financial costs to the applicant due to misinterpretation of the intent of the text.

Proposal for a new UN Regulation based upon brake-assist system provisions extracted from UN R13-H in order to facilitate work on the international whole vehicle type approval system.

Proposal for a new UN Regulation comprised of provisions concerning electronic stability control systems extracted from UN R13-H in order to facilitate work on the international whole vehicle type approval system.

Proposal for corrections to the text and equations.

Proposal to remove certain design restrictions that impede the application of new technologies, especially related to trailer power steering systems and the use of energy from the towing vehicle, including specification of the connector through which electrical energy is supplied in the proposal. This proposal also replaces references to rear-view mirrors with the term “indirect vision devices” to reflect the addition of camera-monitor systems to UN R46 and clarifies the references to Regulation No. 10 on electromagnetic compatibility requirements.

Proposal to refine the language ensuring that drivers may override the ACSF system through deliberate action.

Discussion of parameters to delineate corrective steering function (CSF) from automatically commanded steering function (ACSF) systems. The former refers to intermittent systems such as lane-keeping while the latter refers to systems in continuous control of the steering function.

Presentation and supporting materials to facilitate discussion towards clarifying provisions on sensor range and monitoring of the vehicle environment.

Presentation supporting changes proposed by Germany in document ACSF-06-05.

Proposal for amendments to the provisions on Data Storage Systems for ACSF under the draft amendment to enable the use of automated steering systems at higher speeds under UN R79.

Proposals to delineate the difference between corrective steering (driver assistance) and automatically commanded steering (automated driving) functions, clarify the definition of Complex Electronic Systems, require system deactivation when sensors are blocked, and to require indication of the level/version of software in use.

Proposals to clarify that references to “other road users” includes pedestrians and large animals and, with respect to ensuring the driver’s availability to assume control of the vehicle, a time frequency limit for driver monitoring systems based upon the time required to travel a distance of 1500 m with an upper limit of 180 seconds (i.e., the time required to travel 1500 m at 30 km/h).