Document ID: chunk:federal_register_of_legislation:F2018L01515:body:0:p39
Version: federal_register_of_legislation:F2018L01515
Segment Type: other
Provision Reference: 
Character Range: 109859–112545

for a period longer than 10 s (for M1, N1) or 30 s (for M2, M3, N2, N3). If such a test cannot be practically achieved due to e.g. the limitations of the test facilities, with the consent of the Type Approval Authority this requirement may be fulfilled through the use of documentation.
The test requirements are fulfilled if:
(a) The acoustic warning is provided no later than 10 s (for M1, N1) or 30 s (for M2, M3, N2, N3) after the beginning of the intervention.
In the case of paragraph 5.1.6.1.2.2. of this Regulation, the vehicle shall be driven such that it attempts to leave the lane and causes at least three interventions of the system within a rolling interval of 180 s.
The test requirements are fulfilled if:
(a) An optical warning signal is provided for each intervention, as long as the intervention exists, and
(b) An acoustic warning signal is provided at the second and third intervention, and
(c) The acoustic warning signal at the third intervention is at least 10 s longer than the one at the second intervention.
3.1.1.2. In addition, the manufacturer shall demonstrate to the satisfaction of the Technical Service that the requirements defined in paragraphs 5.1.6.1.1. and 5.1.6.1.2. are fulfilled in the whole range of CSF operation. This may be achieved on the basis of appropriate documentation appended to the test report.
3.1.2 Overriding force test
3.1.2.1. The vehicle shall be driven with an activated CSF on a road with lane markings on each side of the lane.
The test conditions and the vehicle test speed shall be within the operating range of the system.
The vehicle shall be driven such that it attempts to leave the lane and causes CSF intervention. During the intervention, the driver shall apply a force on the steering control to override the intervention.
The force applied by the driver on the steering control to override the intervention shall be recorded.
3.1.2.2. The test requirements are fulfilled if the force applied by the driver on the steering control to override the intervention does not exceed 50 N.
3.1.2.3 In addition, the manufacturer shall demonstrate to the satisfaction of the Technical Service that the requirements defined in paragraph 5.1.6.1.3. are fulfilled in the whole range of CSF operation. This may be achieved on the basis of appropriate documentation appended to the test report.
3.2. Tests for ACSF Category B1 Systems
3.2.1. Lane keeping functional test
3.2.1.1. The vehicle speed shall remain in the range from Vsmin up to Vsmax.
The test shall be carried out for each speed range specified in paragraph 5.6.2.1.3. of this Regulation separately or within contiguous speed ranges where the aysmax is identical.