The GMW 17039 standard, developed by the General Motors company, is used to validate the power window defogger on the fixed window.
This standard applies to all automobile, multi-purpose passenger car and truck models manufactured by General Motors company worldwide, with an electrically heated fixed glass and a gross vehicle mass (weight) of 4536 kg.
The purpose of this standard is to establish a common test method for heated networks to ensure the continuous development and production of a high-quality world-class system. This standard is for the development phase of new technologies or vendors, but can be used for product validation.
A windshield defrosting system is a combination of equipment intended by the vehicle manufacturer, together with the necessary accessories and controls, to remove frost or ice from the glazed surfaces of the windshield, thereby restoring visibility. Thawed area refers to the area of the outer glass surface of the windshield that has a dry surface or is covered with melted or partially melted (wet) ice, excluding any area of the windshield covered with dry ice. Defrosting refers to the removal of frost or ice covering the outer glass surface of the windshield by the operation of the windshield defrosting or windshield wiper and washing systems. A windshield demisting system, on the other hand, is a combination of equipment intended by the vehicle manufacturer to demist the windshield, with the necessary accessories and controls, and thereby restore vision.
Defrosting with an electric stick heater is one of the most widely used methods in the automotive industry. Electric heaters in the form of rods placed in the direction of the serpentine pipes are heated by passing current at certain intervals and the frost on the serpentine surfaces is dissolved and removed from the environment. However, there are insulating materials at both ends of the heater, which wear out with the effect of temperature and time and begin to leak water.
Our company , among the numerous tests, measurements, analyses, and evaluations it provides for businesses in various sectors, also offers electric window defroster/defrost testing services under the GMW 17039 standard, with its trained and expert staff and advanced technological equipment.
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
