Model BG-3 Emissions Testing & Certification Applications

Aftertreatment and oil additive suppliers as well as automotive, non-road diesel, on-road light & heavy duty diesel, motorcycle, locomotive, airplane, and marine engine & vehicle manufacturers will develop and certify cleaner engines faster with the Model BG-3!

Light Duty Engines & Vehicles:

Passenger Cars, Light Duty Vehicles, 2- and 3-wheeler applications require to test the complete vehicle and not only the engine itself. For this purpose the vehicle is tested on a chassis dyno, which simulates the actual driving on the road. Certification tests can be done with the Model BG-3 or a CVS.

Passenger Cars:
Certification, Certification - Low Temperature, Engine Development , S-ULEV
Motor Cycles: Motor Cycles - 4 Stroke, Motor Cycles - 2 Stroke

Heavy Duty Engines & Vehicles:
For Heavy Duty applications only the engine is tested on an engine test bed. Two different test types exist - a stationary and a transient test. For USA and Japanese heavy duty applications a transient test must be performed. For Europe, both test types exists. The BG-3 can be used in place of a CVS for ALL tests.

Stationary Certification:
The engine is operated at constant load and speed conditions (modes). The normal pattern of the engine operation is represented by weighting factors for each engine condition. All emission measurement is done by samples from the raw exhaust. As an option, systems for transient testing can be used.

Transient Certification:
The engine is operated at transient load and speed conditions, which represents the normal pattern of the engine operation. For certification tests, the exhaust can be sampled with a Model BG-3 or must be diluted with air by a CVS. HC, NOx and Particulate emissions are sampled continuously from the dilution tunnel. CO2, CO and all background concentrations are usually determined from the sample bags. The Model BG-3 is capable of interfacing with gaseous emissions equipment to meet this requirement.

Transient Certification - Engine Development:
The engine is operated at transient load and speed conditions, which represents the normal pattern of the engine operation. For certification tests, a Model BG-3 can be used or exhaust must be diluted with air by a CVS. HC, NOx and Particulate emissions are sampled continuously from the dilution tunnel. CO2, CO and all background concentrations are usually determined from the sample bags. The Model BG-3 is capable of interfacing with gaseous emissions equipment to meet this requirement.

Off Road Engines & Vehicles:
Off road engines (all type of engines which are not used to transport people or goods on the road) will be tested on a stationary test cycle (ISO8178). Such engine applications cover the range from small handheld tools, construction equipments up to large engines for ships or Locomotives.