To Analyze Transmission Losses

Dynamometers are the devices that power and torque of an engine, without removing it from the vehicle chassis.

A dynamometer is one or two steel drums, called rollers and the vehicle in the wheel is placed between them.

But, after the engine of the installation in the vehicle, connects to several other articles and appliances, and it is up to them, which absorbs some of its power. When the engine has been tested with an engine dynamometer, which measures the power directly from the engine, it will demonstrate that the readings are higher than those collected on a dynamometer. In some cases, the power to the wheel was 2 thirds of the measured power to the engine. The fact that the rolls are made of steel is important, because the tires slip, one of the results will be somewhat changed in this situation.

Many of the components of the transmission absorb a small amount of the engine's power. This is the so-called transmission loss, and the modern dynamometers are constructed in such a way that they can calculate this transfer about loss.

How are they doing this? - Using special computer software.

This dynamometer software can calculate and predict transmission losses, and can also simulate real life driving conditions, or even racing conditions. At least that is what the developers say, because according to some mechanics and engine tuners it is not entirely accurate, and the results are not true.

So, the most accurate and secure method for calculating the transmission losses is to measure the engine with a power engine dynamometer first, and then with a dynamometer. The difference between them represents the real transmission loss.

Also make sure that tires are properly inflated, because they do not inflated tires can absorb much power and the bank in the readings will be inaccurate.

dynamometer history