Document ID: chunk:federal_register_of_legislation:F2018L01515:body:0:p40
Version: federal_register_of_legislation:F2018L01515
Segment Type: other
Provision Reference: 
Character Range: 112302–115011

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.
The vehicle shall be driven without any force applied by the driver on the steering control (e.g. by removing the hands from the steering control) with a constant speed on a curved track with lane markings at each side.
The necessary lateral acceleration to follow the curve shall be between 80 and 90 per cent of the maximum lateral acceleration specified by the vehicle manufacturer aysmax.
The lateral acceleration and the lateral jerk shall be recorded during the test.
3.2.1.2. The test requirements are fulfilled if:
The vehicle does not cross any lane marking;
The moving average over half a second of the lateral jerk does not exceed 5 m/s³.
3.2.1.3. The vehicle manufacturer shall demonstrate to the satisfaction of the Technical Service that the requirements for the whole lateral acceleration and speed range are fulfilled. This may be achieved on the basis of appropriate documentation appended to the test report.
3.2.2. Maximum lateral acceleration test
3.2.2.1. 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.
The vehicle shall be driven without any force applied by the driver on the steering control (e.g. by removing the hands from the steering control) with a constant speed on a curved track with lane markings at each side.
The Technical Service defines a test speed and a radius which would provoke a higher acceleration than aysmax + 0.3 m/s2 (e.g. by travelling with a higher speed through a curve with a given radius).
The lateral acceleration and the lateral jerk shall be recorded during the test.
3.2.2.2. The test requirements are fulfilled if:
The recorded acceleration is within the limits specified in paragraph 5.6.2.1.3. of this Regulation.
The moving average over half a second of the lateral jerk does not exceed 5 m/s³.
3.2.3. Overriding force test
3.2.3.1. The vehicle speed shall remain in the range from Vsmin up to Vsmax.
The vehicle shall be driven without any force applied by the driver on the steering control (e.g. by removing the hands from the steering control) with a constant speed on a curved track with lane markings at each side.
The necessary lateral acceleration to follow the curve shall be between 80 and 90 per cent of the minimum value specified in the table of paragraph 5.6.2.1.3. of this Regulation.
The