GB/T 28046.1-2011Road vehicles -- Environmental conditions and testing for electrical and electronic equipment -- Part 1: General (English PDF)

Foreword

GB/T 28046 "Road vehicles - Environmental conditions and testing for electrical and

electronic equipment" consists of five parts.

- Part 1.General;

- Part 2.Electrical loads;

- Part 3.Mechanical loads;

- Part 4.Climatic loads;

- Part 5.Chemical loads.

This Part is Part 1 of GB/T 28046.

This Part is drafted in accordance with the rules given in GB/T 1.1-2009.

This Part is prepared by using the redrafting method to amend and adopt ISO 16750-

1 Scope

This Part describes the potential environmental stresses and specifies tests and

requirements recommended for the specific mounting location of systems/components

on/in the vehicle.

2 Normative references

The following referenced documents are indispensable for the application 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.

GB/T 28046.2 Road vehicles - Environmental conditions and testing for electrical

and electronic equipment - Part 2.Electrical loads (GB/T 28046.2-2011, ISO 16750-

2.2006, MOD)

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

4 Classification by mounting location

For some locations with special environmental conditions (e.g. exhaust system), no

standard specifications can be given. In these cases, the load shall be stated in the

instructions of the DUT.

5 Operating modes

The DUT is electrically operated with test voltage, UB, as in a vehicle with shut-off

engine and with all electrical connections made.

The DUT is electrically operated with test voltage, UA, with all electrical connections

made.

6 Functional status classification

All functions of the device/system perform as designed during the test. However, one

or more of them may go beyond the specified tolerance. All functions return

automatically to within normal limits after the test. Memory functions shall remain class

A.

One or more functions of a device/system do not perform as designed during and after

the test and cannot be returned to proper operation without repairing or replacing the

device/system.

7 Tests and requirements

8 Designation

Each part of this series of standards accommodates special needs and situations

through the use of Code Z "as agreed". The use of Code Z should be restricted to

cases where the supplier and/or vehicle manufacturer determine that the conditions or

tests are

Annex A

(informative)

Example for a test sequence plan

Figure A.1 shows an example for a test sequence plan.

Annex B

(informative)

Example of life test/statement of reliability

In addition to environmental loads, a product used in the vehicle will be subjected to

loads induced by its own function, hereafter referred to as functional loads.

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