International
- Worldwide Harmonized Light Vehicles Test Cycle (WLTC)
- Chassis dynamometer test cycles for light-duty vehicles used for vehicle emission certification/type approvals conducted in the EU and other countries according to the Worldwide harmonized Light vehicles Test Procedures (WLTP).
Speed points: WLTC Class 3b | WLTC Class 3a | WLTC Class 2 | WLTC Class 1
- World Harmonized Stationary Cycle (WHSC)
- A steady-state engine dynamometer cycle for heavy-duty engines, developed for engine emission certification/type approvals worldwide.
- World Harmonized Transient Cycle (WHTC)
- A transient engine dynamometer cycle for heavy-duty engines, developed for engine emission certification/type approvals worldwide.
- World Harmonized Vehicle Cycle (WHVC)
- A non-regulatory chassis dynamometer test cycle for heavy-duty vehicles.
- Nonroad Transient Cycle (NRTC)
- A transient engine dynamometer cycle for mobile nonroad engines, used for engine emission certification/type approval in the USA, European Union and other countries.
- ISO 8178
- Test cycle composed of several steady-state test modes. Used for selected non-road engine applications in Europe, USA, and Japan.
United States
Light-Duty Vehicles
- FTP 72
- A transient test cycle for cars and light duty trucks performed on a chassis dynamometer. Simulates a urban route with frequent stops.
- FTP 75
- A transient test cycle for cars and light duty trucks derived from the FTP-72. Used for emission certification testing of cars and light duty trucks in the USA.
- SFTP US06
- A supplemental FTP procedure to simulate aggressive highway driving.
- SFTP SC03
- A supplemental FTP procedure to simulate emissions associated with the use of air conditioning units.
- New York City Cycle
- EPA NYCC schedule simulating low speed city driving.
- Highway Fuel Economy Test (HWFET)
- EPA dynamometer driving schedule for fuel economy determination.
- California Unified Cycle (UC, LA92)
- California UC dynamometer driving schedule.
- IM240
- Inspection & Maintenance driving cycle used for emission measurements from in-use vehicles.
- Standard Road Cycle (SRC) and Standard Bench Cycle (SBC)
- Dynamometer and engine bench tests for emission durability determination.
Heavy-Duty Engines (Engine Dynamometer)
- FTP Transient
- A transient engine dynamometer cycle for heavy-duty truck and bus engines. Includes segments designed to simulate both urban and freeway driving. Used for emission certification testing of heavy-duty diesel engines in the USA.
- Supplemental Emissions Test (SET)
- Supplementary steady-state test used for emission certification of heavy-duty diesel engines in the USA.
- Low Load Cycle (LLC)
- An engine and chassis dynamometer cycle for heavy-duty engines and vehicles, representing real-world urban tractor and vocational vehicle operations characterized by low engine loads.
- Nonroad Low Load Cycle (Nonroad LLC)
- An engine dynamometer test cycle for nonroad engines, representing real-world nonroad equipment operation with low engine loads and engine idling.
- Nonroad Low Load Application Cycle (LLAC)
- An engine dynamometer test cycle for nonroad engines, representing real-world nonroad equipment operation characterized by low engine loads.
- NTE (Not-To-Exceed) Testing
- Additional “off-cycle” US EPA testing requirements for emission certification of heavy-duty diesel engines.
- AVL 8-Mode Heavy-Duty Cycle
- A steady-state test designed by AVL to produce emission results closely correlating with those measured over the US FTP Transient test.
- CSVL
- Constant-Speed, Variable-Load (CSVL) transient test cycle developed by the EPA for constant-speed engines, but never adopted in emission regulations.
- CTA
- Chicago Transit Authority engine cycle.
Heavy-Duty Vehicles (Chassis Dynamometer)
- Urban Dynamometer Driving Schedule (UDDS)
- EPA transient chassis dynamometer test cycle for heavy-duty vehicles.
- Central Business District (CBD)
- Transient chassis dynamometer test cycle for heavy-duty vehicles.
- Business Arterial Commuter (BAC)
- A composite heavy-duty vehicle’s fuel economy cycle, also known as the Transit Coach Operating Duty Cycle.
- City Suburban Cycle & Route (CSC)
- Chassis dynamometer test cycle for heavy-duty vehicles.
- Neighborhood Refuse Truck Cycle
- Transient chassis dynamometer test cycle representing the operation of a refuse truck.
- New York Composite
- Transient chassis dynamometer test cycle for heavy-duty vehicles.
- New York Bus (NYBus)
- Transient chassis dynamometer test cycle for urban transit buses.
- Manhattan Bus Cycle
- Transient chassis dynamometer test cycle for urban transit buses.
- Heavy Heavy-Duty Diesel Truck (HHDDT)
- Four-mode chassis dynamometer test developed by the California Air Resources Board.
- Orange County Bus Cycle
- Chassis dynamometer test cycle for transit buses developed by the West Virginia University.
- WVU 5-Peak
- 5-speed chassis dynamometer test cycle for heavy-duty trucks developed by the West Virginia University.
European Union
Light-Duty Vehicles
- ECE+EUDC / NEDC
- A combined chassis dynamometer test used for emission testing and certification in Europe. It is composed of four ECE Urban Driving Cycles, simulating city driving, and one Extra Urban Driving Cycle (EUDC), simulating highway driving conditions. The cold-start version of the test, introduced in 2000, is referred to as the New European Driving Cycle (NEDC).
Speed points: ECE | EUDC | EUDC low power
- Common Artemis Driving Cycles (CADC)
- Chassis dynamometer test cycles (urban, rural road and motorway) developed under the Artemis project, based on statistical analysis of European real world driving conditions.
Speed points: Urban | Rural Road | Motorway 150 | Motorway 130
- ADAC Highway Cycle (BAB 130)
- Chassis dynamometer test cycle representing high speed highway driving used for ADAC EcoTest testing.
- RTS 95 Cycle
- Chassis dynamometer test cycle representing aggressive driving.
Heavy-Duty Engines & Vehicles
- ECE R49
- Steady state cycle for heavy duty truck engines. Consists of a sequence of 13 engine dynamometer test modes. Used for heavy-duty engine emission certification through the Euro II stage.
- ESC (OICA)
- Steady-state cycle for truck and bus engines. The ESC test is used for emission certification of heavy-duty diesel engines from the Euro III stage (2000).
- ELR
- Test is used for smoke opacity determination during emission certification of heavy-duty diesel engines from the Euro III stage (2000).
- ETC (FIGE)
- Transient test cycle for truck and bus engines. It is used, together with the ESC, for heavy duty engine emission certification. A non-standardized vehicle version, known as FIGE cycle, is sometimes used for research purposes.
- Braunschweig Cycle
- Transient chassis dynamometer test cycle simulating a urban bus route.
Japan
Light-Duty Vehicles
- 10-Mode Cycle
- Urban driving cycle used for emission testing from light-duty vehicles, later replaced by the 10-15 mode cycle.
- 10-15 Mode Cycle
- Urban driving cycle for emission certification and fuel economy determination of light-duty vehicles.
- JC08 Cycle
- New urban driving cycle for emission and fuel economy measurements of light-duty vehicles, which will fully replace the 10-15 mode cycle by 2011.
Heavy-Duty Engines And Vehicles
- 6-Mode Cycle
- Two 6-mode cycles were used in Japan for heavy-duty vehicles weighting more than 2.5 t or transporting more than ten passengers: one cycle for diesel vehicles and one cycle for gasoline/LPG vehicles. Total emissions were expressed in ppm as a weighted average from the 6 test modes.
- 13-Mode Cycle
- A newer cycle for heavy-duty vehicles that replaced the 6-mode cycles. The cycle included 13 stabilized engine modes. There were two versions of the test—one for diesel and one for gasoline and LPG engines—which showed some differences in the test modes and had different weighting factors. Emissions were expressed in g/kWh.
- JE05 Cycle
- New transient driving cycle for emission testing from heavy-duty diesel and gasoline vehicles which replaced the 13-mode cycle.
China
- China Light-Duty Vehicle Test Cycle (CLTC)
- Two chassis dynamometer driving schedules, one for passenger cars (CLTC-P) and another for light commercial vehicles (CLTC-C).
- China Heavy-Duty Commercial Vehicle Test Cycle (CHTC)
- Six chassis dynamometer test cycles for various categories of heavy-duty vehicles.
Speed points: CHTC-B | CHTC-C | CHTC-LT | CHTC-HT | CHTC-D | CHTC-TT
- China Engine Test Cycle (CETC)
- Two engine dynamometer test cycles, one steady-state and one transient, for heavy-duty engines.
Australia
- CUEDC (Diesel)
- CUEDC (Composite Urban Emissions Drive Cycles) includes a set of six chassis dynamometer driving schedules for light and heavy diesel vehicles.
- Petrol CUEDC & SPC240
- A CUEDC cycle (chassis dynamometer) for gasoline vehicles and the short SPC240 test derived from Petrol CUEDC.
Speed points: Petrol CUEDC | SPC240