BS ISO 1585 pdf free download
BS ISO 1585-2020 pdf free download.Road vehicles一Engine test code – Net power.
This document specifies a method for testing engines designed for automotive vehicles. It applies to the evaluation of their performance with a view, in particular to presenting curves of power and specific fuel consumption at full load as a function of engine speed.
It applies only to net power assessment,
This document concerns internal combustion engines used for propulsion of passenger cars, trucks and other motor vehicles, excluding motorcycles, mopeds and agricultural tractors normally travelling on roads, and included in one of the following categories:
— reciprocating internal combustion engines (spark-ignition or compression-ignition) but excluding free piston engines;
— rotary piston engines.
These engines can be naturally aspirated or pressure-charged, either using a mechanical supercharger
or turbocharger.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
ISO 2710-1, Reciprocating internal combustion engines — Vocabulary — Part 1: Terms for engine design and operation
ISO 7876-1, Fuel injection equipment — Vocabulary — Part 1: Fuel injection pumps
ISO 7967-1, Reciprocating internal combustion engines — Vocabulary of components and systems — Part 1:
Structure and external covers
ISO 7967-2, Reciprocating internal combustion engines — Vocabulary of components and systems — Part 2: Main running gear
ISO 7967-3, Reciprocating internal combustion engines — Vocabulary of components and systems — Part 3: Valves, camshaft drives and actuating mechanisms
ISO 7967-4, Reciprocating internal combustion engines — Vocabulary of components and systems — Part 4: Pressure charging and air/exhaust gas duc tiny systems
ISO 7967-5, Reciprocating internal combustion engines — Vocabulary of components and systems — Part 5: Cooling systems
ISO 7967-8, Reciprocating internal combustion engines — Vocabulary of components and systems — Part 8: Starting systems
ISO 11614, Reciprocating internal combustion compression-ignition engines — Apparatus for measurement of the opacity and for determination of the light absorption coefficient of exhaust gas
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2710-1, ISO 7876-1, ISO 7967-1, ISO 7967-2, ISO 7967-3, ISO 7967-4, ISO 7967-5 and ISO 7967-8 and the following definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at httpJJwwwiso.org/ubp
— I EC Electropedia: available at http://www.electropedia.org/
3.1 net power
power obtained on a test bed at the end of the crankshaft or its equivalent at the corresponding engine speed with the equipment and auxiliaries listed in Table 1
Note 1 to entry: lithe power measurement can only be carried out with a mounted gearbox, the losses in the gearbox should be added to the measured power to give the engine power.
3.2 standard production equipment
any equipment provided by the manufacturer for a particular engine application
4 Accuracy of measuring equipment and instruments
4.1 Torque
The dynamometer torque-measuring system shall have an accuracy within ±1 % in the range of scale values required for the test.
4.2 Engine speed (rotational frequency)
The engine speed (rotational frequency) measuring system shall have an accuracy of ±0,5 %.
4.3 Fuel flow
The fuel flow measuring system shall have an accuracy of ±1 %.
4.4 Fuel temperature
The fuel temperature measuring system shall have an accuracy of ±2 K.
4.5 Air temperature
The air temperature measuring system shall have an accuracy of ±1 K.
4.6 Barometric pressure
The barometric pressure measuring system shall have an accuracy of ±100 Pa.
NOTE lPa=1N/m2.
4.7 Back pressure in exhaust system
The system used to measure the back pressure in the exhaust system shall have an accuracy of ±200 Pa. The measurement shall be made subject to footnote b of Tablei.BS ISO 1585 pdf download.
