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    Home»reviews»Ducom High Speed Test Rig EV – Requirements, Typical Applications, and Specifications
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    Ducom High Speed Test Rig EV – Requirements, Typical Applications, and Specifications

    M AteeqBy M AteeqDecember 23, 2022No Comments4 Mins Read
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    Whether you're looking to buy a high speed test rig for your lab or you're interested in a high speed test rig for your business, there are a few things you need to know. This article covers the basics. The requirements, typical applications, and specifications are included.

    Overview

    Currently, there are not many standards that can adequately address the tests necessary for the development of an EV transmission fluid. However, there are several tests that need to be addressed, such as the measurement of the rolling sliding coefficient of friction of fluids. The EV transmission fluid needs to be able to handle higher speeds from the shaft of the e-motor while still minimizing frictional heating. There are also several tests that haven't been adequately addressed by existing standards, such as the measurement of the foaming characteristics of fluids. In order to help determine the most effective test methods, Ducom has developed a high speed test rig for EV transmission fluid. It includes a roller on roller, or Twin-disk Tribometer, which can achieve speeds up to 8000N and achieve four GPa of contact pressure. It also has a Stribeck feature, which measures the rolling sliding coefficient of friction of fluids.

    Typical applications

    Typical applications of the Ducom high speed test rig ev include the testing of lubricants, the evaluation of bearing designs, and the measurement of tribology for EVs. Although there are many standard tests for e-transmission fluids, there are several critical tests that are not adequately addressed by existing standards. These tests include foaming characteristics, copper corrosion, dielectric properties, and contact resistance. These tests will be addressed in future standardization exercises.
    The Ducom KRL shear stability tester is an effective tool for measuring thermal response and shear induced frictional heating. The tester is equipped with a friction force sensor and a fast response temperature sensor, which allows simultaneous measurement of thermal response and shear induced heating. The roller on roller offers independent control of speed and load, and is capable of achieving 4 GPa of contact pressure. It also features the Stribeck feature, which measures the rolling sliding coefficient of friction of fluids. This feature is useful for evaluating the electrical contact resistance of e-transmission fluids under EHD conditions.
    The Ducom ECR module is also used to measure contact resistance and provides a range of contact potentials. Electrical contact resistance is historically used to measure film failure, but it can also be used to evaluate metal to metal contact and interface electrical conductivity under EHD conditions.

    Specifications

    EV transmission fluids have different requirements, so it is essential to test the fluid's performance. This requires testing methods to be developed. Many existing standards are used to test transmission fluids, but there are several critical tests that have not been adequately addressed by existing standards. Those tests include foaming characteristics, copper corrosion, and dielectric properties of fluids. Some of these tests are already being addressed, but a few more are in the works. The following are some of the specifications of a Ducom High Speed Test Rig.
    The Ducom four ball tester can control loads ranging from 100 N to 10,000 N. The tester has a fast response temperature sensor and a friction force sensor. It also has a taper roller bearing that allows simultaneous measurement of shear induced heating and the thermal response. The load is also maintained stable during all the test runs. The average speed is 1770 rpm. The tester also has a pneumatic loading system that allows the load to be preloaded to the desired load at zero rpm. The Ducom software lets you view real-time changes in the load profiles.

    Requirements

    Various existing standards have been developed for EV transmission fluids, but some critical tests are not adequately addressed. These include electrical contact resistance (ECR), copper corrosion, foaming characteristics, and dielectric properties of fluids. Developing new methods for testing these fluids will be important for reliable transmission drive.
    A Ducom high speed test rig, also known as a Twin-disk Tribometer, can handle loads up to 8000N, providing independent control of speeds. It also has a Stribeck feature, which measures the rolling sliding coefficient of friction of fluids. This feature is important for testing EV transmission fluids, which have different requirements than conventional transmission fluids.
    Ducom's high speed test rig also includes a friction force sensor and fast response temperature sensor. This testing equipment can measure thermal response and shear induced heating. In addition, it degrades viscosity index improvers, which decreases friction and increases the efficiency of e-transmission systems. In addition, it has a contact potential module with resistivity values that can be used to evaluate metal-to-metal contact.
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