Document ID: chunk:federal_register_of_legislation:F2018L01515:body:0:p29
Version: federal_register_of_legislation:F2018L01515
Segment Type: other
Provision Reference: 
Character Range: 80543–86370

actuations of the service brake control to achieve at the ninth application, the residual performance (see table below).

    Table 4
Secondary and residual efficiency
Category                                                                                                                                                                                                      V (km/h)  Secondary braking (m/s²)  Residual braking (m/s²)
M1                                                                                                                                                                                                            100       2.44                      -
M2 and M3                                                                                                                                                                                                     60        2.5                       1.5
N1 a, b                                                                                                                                                                                                       (i)       70                        2.2                      1.3
(ii)                                                                                                                                                                                                          100       2.44                      -
N2                                                                                                                                                                                                            50        2.2                       1.3
N3                                                                                                                                                                                                            40        2.2                       1.3
 a The applicant shall select the appropriate row (i) or (ii) and this choice shall be subject to the agreement of the Technical Service.
 b Information: The values in row (i) are aligned with the corresponding provisions in UN Regulation No. 13, the values in row (ii) are aligned with the corresponding provisions in UN Regulation No. 13-H.

Annex 4
       Additional provisions for vehicles equipped with Auxiliary Steering Equipment
1. General Provisions
 Vehicles fitted with Auxiliary Steering Equipment (ASE) in addition to the requirements given in the body of this Regulation shall also comply with the provisions of this annex.
2. Specific Provisions
2.1. Transmission
2.1.1. Mechanical steering transmissions
 Paragraph 5.3.1.1. of this Regulation applies.
2.1.2. Hydraulic steering transmissions
 The hydraulic steering transmission shall be protected from exceeding the maximum permitted service pressure T.
2.1.3. Electric steering transmissions
 The electric steering transmission shall be protected from excess energy supply.
2.1.4. Combination of steering transmissions
 A combination of mechanical, hydraulic and electric transmissions shall comply with the requirements specified in paragraphs 2.1.1., 2.1.2. and 2.1.3. above.
2.2. Testing requirements for failure
2.2.1. Malfunction or failure of any part of the ASE (except for parts not considered to the susceptible to breakdown as specified in paragraph 5.3.1.1. of this Regulation) shall not result in a sudden significant change in vehicle behaviour and the relevant requirements of paragraph 6. of this Regulation shall still be met. Furthermore, it shall be possible to control the vehicle without abnormal steering correction. This shall be verified by the following tests:
2.2.1.1. Circular test
 The vehicle shall be driven into a test circle with a radius "R" m and a speed "v" km/h corresponding to its category and the values given in the table below:

    Table 5
Vehicle category                                                                                                                                                                                                                                                                                                                                                       R 3  v 1, 2
M1 and N1                                                                                                                                                                                                                                                                                                                                                              100  80
M2 and N2                                                                                                                                                                                                                                                                                                                                                              50   50
M3 and N3                                                                                                                                                                                                                                                                                                                                                              50   45
 1  If the ASE is in a mechanically locked position at this specified speed, the test speed will be modified to correspond to the maximum speed where the system is functioning. Maximum speed means the speed when the ASE becomes locked minus 5 km/h.
 2  If the dimensional characteristics of the vehicle imply an overturning risk, the manufacturer shall provide to the Technical Service behaviour simulation data demonstrating a lower maximum safe speed for conducting the