Hmmm, ff naar Wikipedia levert op:
Brake horsepower (bhp) is the measure of an engine's horsepower without the loss in power caused by the gearbox, generator, differential, water pump and other auxiliaries ...../.... The term "brake" refers to the use of a band brake to measure torque during the test (which is multiplied by the engine speed in revs/sec and the circumference of the band to give the power)
hp SAE:
In the United States the term "bhp" fell into disuse after the American Society of Automotive Engineers (SAE) recommended manufacturers use hp (SAE) to indicate the net power of the engine, given that particular car's complete engine installation. It measures engine power at the flywheel, not counting drivetrain losses
hp (DIN)
DIN horsepower is the power measured according to the German standard DIN 70020. It is measured at the flywheel, and is in practical terms equivalent to the SAE net figure. However, be aware that DIN "horsepower" is often expressed in metric (Pferdestärke) rather than mechanical horsepower
hp (ECE)
ECE R24 is another standard for measuring net horsepower. It is quite similar to the DIN 70020 standard, but the requirement for connecting an engine's fan during testing varies. ECE is seen as slightly more liberal than DIN, and ECE figures tend to be slightly higher than DIN. John Deere is one strong adherent to ECE testing.
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9768-EC
9768-EC is a standard from the European Union. Generally, ISO-14396 and 9768-EC metrics are very similar.
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ISO 14396
ISO 14396[4] is a new method from the International Standards Organization for all engines not intended for on-road use. Generally, ISO-14396 and 9768-EC metrics are very similar. New Holland is an adherent of ISO-14396 testing.
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Shaft horsepower (shp)
Shaft horsepower is the power delivered to the propellor shaft of a ship or turboprop airplane. This may be measured, or estimated from the indicated horsepower given a standard figure for the losses in the transmission (typical figures are around 10%). This metric is uncommon in the automobile industry, through drivetrain losses can be significant.
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Effective horsepower (ehp)
Effective horsepower is the power converted to useful work. In the case of a vehicle this is the power actually turned into forward motion.
In automobiles, effective horsepower is often referred to as wheel horsepower. Most automotive dynamometers measure wheel horsepower and then apply a conversion factor to calculate net or brake horsepower at the engine. Wheel horsepower will often be 5-15% lower than the bhp ratings due to a loss through the drivetrain.
Meer is
hier te vinden.
Het is dus toch Brake horse power en ook dus rempaardenkarchten. Of is het paardekrachten...
