IEC 63005-2:2019 pdf download

IEC 63005-2:2019 pdf download.Event video data recorder for road vehicle accidents – Part 2: Test methods for evaluating performance of basic functions
1 Scope
This part of IEC 63005 describes test methods on evaluating performance of basic functionalities of EVDR described in IEC 63005-1 .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 63005-1 :201 7, Event video data recorder for road vehicle accidents – Part 1: Basic requirements IEC 60068-2-1 :2007, Environmental testing – Part 2-1: Tests – Test A: Cold IEC 60068-2-2:2007, Environmental testing – Part 2-2: Tests – Test B: Dry heat IEC 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal) ISO 1 2233, Photography – Electronic still picture imaging – Resolution and spatial frequency responses
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp 3.1 EVDR event video data recorder system that stores vehicle video data of the accident on an electronic recording medium before, during, and after collision accident events with other vehicles, with passers-by and with any other objects Note 1 to entry: This note applies to the French language only. 3.2 event data information recorded by the EVDR to facilitate analysis of accident scenarios in the case of collision accident events with other vehicles, pedestrians or objects 3.3 vehicle dynamics data information on a vehicle’s dynamic behaviour such as acceleration, angular velocity, and physical quantities related to collision 3.4 integrity verification value information used to detect doctoring and/or deletion of event data
5 General requirements for tests
5.1 Test environment The test environment of the event video data recorder shall be maintained at (23 ± 5) °C. 5.2 Simulation of accident events 5.2.1 General Acceleration-generating equipment is used to generate the required acceleration for the simulation of a road accident event. 5.2.2 Simulation device The acceleration-generating equipment shall be able to maintain 3 g for at least 50 ms. Peak acceleration error shall be within 1 0% of each of the absolute values of 0,5 g, 1 g, 1 ,5 g, and 2 g. The equipment also shall be able to generate a triangular waveform with a peak greater than 2 g. The triangular waveform generated by the acceleration generating equipment for the simulation of a single or multiple accident event is illustrated in Figure 1 . Here, g i is the peak acceleration value applied to the EVDR under test. The peak acceleration shall be applied for at least 50 ms during the period of t 2 , and the acceleration and deceleration period, t 1 , shall be less than 1 0 s.5.2.3 Applying a simulated accident event The simulated road accident event is generated using one of the following two methods. a) Using the event data recording function with the recording button on the EVDR: If an event data recording function is available with any kind of switching button, the simulation test can be conducted without applying acceleration. b) Using the acceleration-generating equipment: The following acceleration is generated and applied to the EVDR system. • A triangular waveform is generated, with a peak acceleration of 2 g lasting for at least 50 ms (t 2 shall be longer than 50 ms) and the acceleration and deceleration period, t 1 , shall occur within 1 0 s. 5.2.4 Simulating multiple collision events The acceleration-generating equipment shall be employed to generate acceleration for the multiple collision event test. • A triangular waveform is generated, with a peak acceleration of 2 g lasting for at least 50 ms (t 2 shall be longer than 50 ms) and the acceleration and deceleration period, t 1 , shall occur within 1 0 s.