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UN R79: Proposal for Supplement 2 to the 02 series of amendments
Document WP.29/2020/66
6 April 2020

Proposal to resolve measurement concerns in the test requirements for ACSF of Category B1 and C by introducing provisions for tolerances, including:

  1. inclusion of the position at which the lateral acceleration was measured and the position of the centre of gravity of the vehicle for better traceablility,
  2. sampling rate of at least 100 Hz for dynamic testing,
  3. specification of filters and cut-off frequency for determination of lateral acceleration,
  4. option to measure “overriding force” torque via an internal sensor or an external device (e.g., steering robot).

The proposal also would modify the high-speed test to end once the system has given an optical “hands-off” warning since the entire warning cascade is checked during the low-speed test. For M2 and M3 vehicles, the amendment allows a corrective steering function to use haptic signals as an alternative to acoustic signals for these categories of vehicles that are equipped with Lane Departure Warning System compliant with UN R130. This change would specify that the haptic warning may not be given solely via the steering wheel (e.g., provided in the driver’s seat).

Status: Adopted
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Previous Documents, Discussions, and Outcomes
4.8.2. | Proposal for Supplement 2 to the 02 series of amendments to UN Regulation No. 79 (Steering equipment)
4.8.3. | Proposal for Supplement 3 to the 03 series of amendments to UN Regulation No. 79 (Steering equipment)
6. (a) | Automatically Commanded Steering Functions

46. The expert from CLEPA introduced ECE/TRANS/WP.29/GRVA/2020/10, proposing amendments to the provisions applicable to ACSF of Category B. GRVA adopted the proposal as draft supplements to the 02 and the 03 series of amendments to UN Regulation No. 79 and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their June 2020 sessions.

6. (c) | Remote Control Manoeuvring
Related and Previous Documents
GRVA/2020/10
GRVA/2020/11
GRVA/2019/19
Relates to UN R79 |