BSI 22/30392403 DC 2022
$24.66
BS ISO 16750-3. Road vehicles. Environmental conditions and testing for electrical and electronic equipment – Part 3. Mechanical loads
Published By | Publication Date | Number of Pages |
BSI | 2022 | 126 |
PDF Catalog
PDF Pages | PDF Title |
---|---|
9 | Foreword |
11 | 1 Scope 2 Normative references |
12 | 3 Terms and definitions 4 Tests and requirements 4.1 Vibration 4.1.1 Testing conditions during the vibration test 4.1.1.1 General |
13 | 4.1.1.2 Overlaid temperature cycles during vibration testing 4.1.1.2.1 General |
14 | 4.1.1.2.2 Temperature profile for small and lightweight components not mounted on the combustion engine |
16 | 4.1.1.2.3 Temperature profile for large and heavy components not mounted on the combustion engine |
18 | 4.1.1.2.4 Temperature profile for components mounted on the combustion engine |
19 | 4.1.2 Test Ia – Passenger car, combustion engine, small and lightweight DUT 4.1.2.1 Purpose |
20 | 4.1.2.2 Test 4.1.2.2.1 General 4.1.2.2.2 Sinusoidal vibration |
21 | 4.1.2.2.3 Random vibration |
22 | 4.1.2.3 Requirement 4.1.3 Test II — Passenger car, gearbox attached to a combustion engine, small and lightweight DUT 4.1.3.1 Purpose |
23 | 4.1.3.2 Test 4.1.3.2.1 General 4.1.3.2.2 Sinusoidal vibration |
24 | 4.1.3.2.3 Random vibration |
25 | 4.1.3.3 Requirement 4.1.4 Test VI — Commercial vehicle, combustion engine and gearbox, small and lightweight DUT 4.1.4.1 Purpose 4.1.4.2 Test 4.1.4.2.1 General 4.1.4.2.2 Sinusoidal vibration |
26 | 4.1.4.2.3 Random vibration |
28 | 4.1.4.3 Requirement 4.1.5 Test XIII — Passenger car, hybrid-electric powertrain, combustion engine and gearbox, large and heavy DUT 4.1.5.1 Purpose |
29 | 4.1.5.2 Test 4.1.5.2.1 General 4.1.5.2.2 Sine-on-random vibration 4.1.5.2.2.1 General 4.1.5.2.2.2 Sinusoidal vibration part |
30 | 4.1.5.2.2.3 Random vibration part |
31 | 4.1.5.2.3 Random vibration |
32 | 4.1.5.3 Requirements 4.1.6 Test XV — Passenger car, driving electric motor 4.1.6.1 Purpose |
33 | 4.1.6.2 Test 4.1.6.2.1 General 4.1.6.2.2 Random vibration |
34 | 4.1.6.3 Requirements |
35 | 4.1.7 Test XX — Commercial vehicle, driving electric motor 4.1.7.1 Purpose 4.1.7.2 Test 4.1.7.2.1 General 4.1.7.2.2 Random vibration |
36 | 4.1.7.3 Requirements |
37 | 4.1.8 Test IV — Passenger car, sprung masses (vehicle body), small and lightweight DUT 4.1.8.1 Purpose 4.1.8.2 Test |
38 | 4.1.8.3 Requirement 4.1.9 Test VII — Commercial vehicle, sprung mass (vehicle body), small and lightweight DUT 4.1.9.1 Purpose 4.1.9.2 Test |
39 | 4.1.9.3 Requirement |
40 | 4.1.10 Test XIV — Hybrid-electric/fully-electric passenger car, sprung mass (vehicle body), large and heavy DUT 4.1.10.1 Purpose 4.1.10.2 Test 4.1.10.2.1 General 4.1.10.2.2 Random vibration |
41 | 4.1.10.3 Requirements |
42 | 4.1.11 Test XVI — Hybrid-electric/fully-electric commercial vehicle, sprung mass (vehicle body), large and heavy DUT 4.1.11.1 Purpose 4.1.11.2 Test 4.1.11.2.1 General 4.1.11.2.2 Random vibration |
43 | 4.1.11.3 Requirements 4.1.12 Test V — Passenger car, unsprung mass (wheel, wheel suspension), small and lightweight DUT 4.1.12.1 Purpose 4.1.12.2 Test |
44 | 4.1.12.3 Requirement |
45 | 4.1.13 Test IX — Commercial vehicle, unsprung mass, small and lightweight DUT 4.1.13.1 Purpose 4.1.13.2 Test |
46 | 4.1.13.3 Requirement 4.1.14 Test VIII — Commercial vehicle, decoupled cab 4.1.14.1 Purpose 4.1.14.2 Test |
48 | 4.1.14.3 Requirement 4.1.15 Test III — Passenger car, flexible plenum chamber 4.1.15.1 Purpose 4.1.15.2 Test |
49 | 4.1.15.3 Requirement 4.1.16 Test XI — Passenger car, solid intake manifold 4.1.16.1 Purpose 4.1.16.2 Test 4.1.16.2.1 General 4.1.16.2.2 Sinusoidal vibration |
50 | 4.1.16.2.3 Random vibration |
51 | 4.1.16.3 Requirement 4.1.17 Test Ib – Rotating machines 4.1.17.1 Purpose |
52 | 4.1.17.2 Test 4.1.17.2.1 General |
53 | 4.1.17.2.2 Sinusoidal vibration |
54 | 4.1.17.2.3 Random vibration |
55 | 4.1.17.3 Requirement 4.1.18 Test XII — Passenger car, exhaust pipe 4.1.18.1 Purpose 4.1.18.2 Test conditions 4.1.18.2.1 Test conditions XIIa: valid for small and lightweight sensors with natural frequencies > 1000 Hz |
56 | 4.1.18.2.2 Test conditions for XIIb: valid for modules, mounted before the decoupling element 4.1.18.2.3 Test conditions for XIIc: valid for modules, mounted behind the decoupling element |
57 | 4.1.18.2.3.1 Test – General, for XIIc 4.1.18.2.3.2 Sinusoidal vibration for XIIc 4.1.18.2.3.3 Random vibration for XIIc |
58 | 4.1.18.3 Requirement |
59 | 4.1.19 Test X — Passenger car, components on fuel rail (gasoline engine with GDI-system) 4.1.19.1 Purpose 4.1.19.2 Test 4.1.19.2.1 General 4.1.19.2.2 Sinusoidal vibration |
60 | 4.1.19.2.3 Random vibration |
61 | 4.1.19.3 Requirement 4.2 Mechanical shock 4.2.1 Shock I — Test for devices in or on doors and flaps on passenger cars 4.2.1.1 Purpose 4.2.1.2 Test |
62 | 4.2.1.3 Requirement 4.2.2 Shock II — Test for devices on rigid points on the body and on the frame 4.2.2.1 Purpose 4.2.2.2 Test 4.2.2.3 Requirements 4.2.3 Shock III — Test for devices in or on the gearbox 4.2.3.1 Purpose |
63 | 4.2.3.2 Test 4.2.3.3 Requirements 4.3 Free fall 4.3.1 Purpose |
64 | 4.3.2 Test 4.3.2.1 Free fall with guidance of DUT 4.3.2.2 Free fall without guidance of DUT |
65 | 4.3.3 Selection of drop height 4.3.4 Requirements 4.4 Surface strength/scratch and abrasion resistance 4.4.1 Purpose |
66 | 4.4.2 Test Method 4.4.3 Requirements 4.5 Gravel bombardment 4.5.1 Purpose 4.5.2 Test method 4.5.3 Requirements |
67 | 5 Code letters for mechanical loads |
69 | 6 Documentation |
70 | Annex A (informative) Guidelines for the development of test profiles for vibration tests A.1 Scope A.2 General |
73 | A.3 Average control method |
75 | A.4 Method for determining the vibration profile and test duration on/in powertrain |
76 | A.4.1 General aspects regarding test duration A.4.2 Test duration, example for ICE without any electric propulsion |
79 | A.4.3 Test duration, example for PHEVs |
81 | A.4.4 Verification of load in combustion engine speed distribution A.4.4.1 Procedure |
82 | A.4.4.1.1 Measurement of acceleration levels with a combustion engine speed increase on the chassis dynamometer A.4.4.1.2 Determination of the load distribution from the measured time history (cycle counting method) |
83 | A.4.4.1.3 Analysis of the number of cycles in the classed acceleration levels and combustion engine speeds |
84 | A.4.4.1.4 Verification of the dominant load from the high combustion engine speed range |
85 | A.4.5 Sources for vibration in an SoR profile for powertrain-mounting |
86 | A.5 Method for determining the vibration profile and test duration for DUT mounted on the body A.5.1 General A.5.1.1 Enveloping vibration profile A.5.1.2 Test duration |
87 | A.5.2 Verification of the shortened test duration using fatigue calculation A.5.2.1 General A.5.2.2 Procedure |
88 | A.5.2.3 Test parameters for random vibration A.5.2.4 Acceleration distributions of random vibration test and vehicle driving |
90 | A.5.2.5 Comparative verification between random test and driving stress A.5.2.6 Calculation of the fatigue limits |
93 | A.6 Test duration for a sinusoidal test not governed by an engine speed distribution |
94 | A.7 Test duration with an infinite-life approach for car-body-mounted DUTs |
96 | A.8 The explanation for Basquin model |
97 | A.8.1 General A.8.2 Outline A.8.3 Calculation example |
100 | A.9 Vibration test profiles developed in ISO 19453 A.9.1 Background A.9.2 Vibration profiles for Test XIII (Passenger car, hybrid-electric powertrain, large and heavy DUT) A.9.2.1 Sine on random vibration test |
104 | A.9.2.2 Random vibration test |
106 | A.9.3 Vibration profiles for Test XIV (Hybrid-electric/fully electric passenger car, sprung mass (vehicle body), large and heavy DUT) |
108 | A.9.4 Vibration profiles for Test XV (Passenger car, driving electric motor) |
109 | Figure A.19 — PSD of acceleration versus frequency |
110 | Table A.20 — Values for PSD and frequency |
111 | Annex B (informative) Recommended mechanical requirements for equipment depending on the mounting location |
113 | Annex C (informative) Guidelines for shaker testing of starter motors, alternators and similar DUTs C.1 Test setup for Alternators and Integrated Starter Generators |
114 | C.2 Test setup for starter motors |
115 | C.3 Vibration test profile validation process for dynamically coupled, engine mounted components |
120 | Annex D (informative) Guidelines for free fall testing D.1 Best practice example for choice of DUT orientation |
121 | D.2 Further information on the drop height D.3 Characteristics of the impact surface |
123 | Annex E (informative) 3D vibration testing for automotive components E.1 Motivation E.2 Profile derivation for random vibration tests |
124 | E.3 Difference in uniaxial and multiaxial fatigue for body parts under realistic random excitation |
126 | Bibliography |