Joint Tmc/SAE Fuel Consumption In-Service Test Procedure Type Iii

1987 ◽  
Author(s):  
Keyword(s):  
Fuel Consumption ◽  
Test Procedure ◽  
Service Test ◽  
Type Iii ◽  
Procedure Type

An adaptive equivalent consumption minimization strategy considering catalyst temperature for plug-in hybrid electric vehicle

2021 ◽  
pp. 095440702110434
Author(s):  
Tao Deng ◽  
Ke Zhao ◽  
Haoyuan Yu
Keyword(s):  
Fuel Consumption ◽  
Electric Vehicle ◽  
Fuel Economy ◽  
Hybrid Electric Vehicle ◽  
Test Procedure ◽  
Catalyst Temperature ◽  
Equivalent Factor ◽  
Simulation Results ◽  
Hybrid Electric ◽  
Equivalent Consumption Minimization Strategy

In the process of sufficiently considering fuel economy of plug-in hybrid electric vehicle (PHEV), the working time of engine will be reduced accordingly. The increased frequency that the three-way catalytic converter (TWCC) works in abnormal operating temperature will lead to the increasing of emissions. This paper proposes the equivalent consumption minimization strategy (ECMS) to ensure the catalyst temperature of PHEV can work in highly efficient areas, and the influence of catalyst temperature on fuel economy and emissions is considered. The simulation results show that the fixed equivalent factor of ECMS has great limitations for the underutilized battery power and the poor fuel economy. In order to further reduce fuel consumption and keep the emission unchanged, an equivalent factor map based on initial state of charge (SOC) and vehicle mileage is established by the genetic algorithm. Furthermore, an Adaptive changing equivalent factor is achieved by using the following strategy of SOC trajectory. Ultimately, adaptive equivalent consumption minimization strategy (A-ECMS) considering catalyst temperature is proposed. The simulation results show that compared with ordinary ECMS, HC, CO, and NOX are reduced by 14.6%, 20.3%, and 25.8%, respectively, which effectively reduces emissions. But the fuel consumption is increased by only 2.3%. To show that the proposed method can be used in actual driving conditions, it is tested on the World Light Vehicle Test Procedure (WLTC).

scholarly journals Production Forecast of China’s New Energy Passenger Vehicles in 2021–2023 under the Compliance of Dual-Credit Policy

2021 ◽  
Vol 12 (3) ◽  
pp. 119
Author(s):  
Li Lv ◽  
Xi Li
Keyword(s):  
Fuel Consumption ◽  
Dual Credit ◽  
Test Procedure ◽  
Credit Policy ◽  
Production Forecast ◽  
New Energy ◽  
Vehicle Test ◽  
Production Requirement ◽  
New Energy Vehicle ◽  
New Energy Vehicles

The corporate average fuel consumption (CAFC) and new energy vehicle (NEV) credit policy (2021–2023) was officially released in June 2020. As a mandatory regulation for automobile manufacturers to produce new energy vehicles, its impact on the output of new energy vehicles needs to be systematically evaluated. In this study, we build an enterprise policy compliance model to simulate the dual-credit policy requirements for the production of new energy vehicles from 2021 to 2023 under different scenarios. The results show that the production of new energy vehicles from 2021 to 2023 is required to reach 1.78 to 3.97 million under different scenarios. Three factors, i.e., switching from New Europe Driving Cycle (NEDC) to World Light Vehicle Test Procedure (WLTP) fuel consumption improvement of conventional vehicles, and credit per new energy vehicle, have a more significant impact on the new energy vehicle production than others. Under the minimum guarantee scenario, a 10% change in the above three factors will lead to a 2.5%, 1.5%, and 0.5% reduction in the production requirement for new energy vehicles.

The Analysis of Fuel Consumption and Exhaust Emissions From Forklifts Fueled by Diesel Fuel and Liquefied Petroleum Gas (LPG) Obtained Under Real Driving Conditions

2017 ◽  
Author(s):  
Pawel Fuc ◽  
Piotr Lijewski ◽  
Przemyslaw Kurczewski ◽  
Andrzej Ziolkowski ◽  
Michal Dobrzynski
Keyword(s):  
Energy Consumption ◽  
Fuel Consumption ◽  
Test Procedure ◽  
Exhaust Emissions ◽  
Spark Ignition Engine ◽  
Emission Measurement ◽  
Liquefied Petroleum Gas ◽  
Load Transport ◽  
Driving Conditions ◽  
Identical Type

The paper presents an analysis of gaseous exhaust emissions and fuel consumption obtained from two forklifts based on the measurements performed under actual driving conditions. The first of the investigated objects was fitted with a diesel engine and the second with a spark ignition engine fueled with LPG. In order to carry out the research, the authors developed a proprietary methodology because the VDI 2198 test procedure (developed by VDI - Association of German Engineers) for the determination of forklift energy consumption, did not fully reflect the actual conditions of operation of these vehicles. The VDI procedure only determines the energy consumption according to predetermined sequences (collecting load, load transport, load-dropping) performed only in indoor areas. The authors developed a test route composed of similar sequences i.e. collecting load, load transport, load-dropping and driving without a load. The measurements were carried out in a warehouse and outdoors, which better reflected the actual forklift driving conditions. During the trials, the exhaust emissions were measured (Semtech - Portable Emission Measurement System) along with the driving parameters such as speed, acceleration and distance covered. Based on the obtained parameters, on-road exhaust emissions and fuel consumption were obtained. The obtained data allowed a comparison of the measurement conditions and the type of fuel used for the forklifts. Both tested vehicles were loaded with identical type of load of the same weight.

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