scholarly journals Experimental Determination of the Performances during the Cold Start-Up of an Air Compressor Unit for Electric and Electrified Heavy-Duty Vehicles

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3664
Author(s):  
Gianluca Valenti ◽  
Stefano Murgia ◽  
Ida Costanzo ◽  
Matteo Scarnera ◽  
Francesco Battistella
Keyword(s):  
Volume Flow Rate ◽  
Cold Start ◽  
Input Power ◽  
Compressed Air ◽  
Compressor Unit ◽  
Heavy Duty ◽  
Air Compressor ◽  
Start Up ◽  
Heavy Duty Vehicle ◽  
Heavy Duty Vehicles

Compressed air is crucial on an electric or electrified heavy-duty vehicle. The objective of this work was to experimentally determine the performance parameters of the first prototype of an electric-driven sliding-vane air compressor, specifically designed for electric and electrified heavy-duty vehicles, during the transient conditions of cold start-ups. The transient was analyzed for different thermostatic temperatures: 0 °C, −10 °C, −20 °C, and −30 °C. The air compressor unit was placed in a climatic chamber and connected to the electric grid, the water-cooling loop, and the compressed air measuring and controlling rig. The required start-up time was greater the lower the thermostatic temperature, ranging from 30 min at 0 °C to 221 min at −30 °C and depending largely on the volume of the lubricant oil filled initially. The volume flow rate of the compressed air was lower than nominal at the beginning, but it showed a step increase well beyond nominal when the oil reached 50 °C and then decreased gently towards nominal, while the input power kept steady at nominal after a short initial peak. These facts must be considered when estimating the time and the energy required by the air compressor unit to fill up the compressed air tanks of the vehicles.

scholarly journals Experimental investigation on the extreme cold start-up of an air compressor for electric heavy vehicles

2019 ◽  
Vol 604 ◽  
pp. 012065
Author(s):  
Gianluca Valenti ◽  
Stefano Murgia ◽  
Ida Costanzo ◽  
Antonino Ravidà ◽  
Giovanni Pio Piscopiello
Keyword(s):  
Experimental Investigation ◽  
Cold Start ◽  
Heavy Vehicles ◽  
Air Compressor ◽  
Start Up ◽  
Extreme Cold

Cold start emissions of Heavy Duty Vehicles

2001 ◽  
Author(s):  
D. Engler ◽  
S. Hausberger ◽  
J. Blassnegger
Keyword(s):  
Cold Start ◽  
Heavy Duty ◽  
Heavy Duty Vehicles

Economic Incentives to Mitigate Impacts of State Low-Emission Vehicle Standard for Heavy-Duty Vehicles

1996 ◽  
Vol 1520 (1) ◽  
pp. 63-70
Author(s):  
Thomas Kornfield ◽  
Jonathan Skolnik
Keyword(s):  
Economic Incentive ◽  
Economic Incentives ◽  
The State ◽  
Heavy Duty ◽  
Emission Standards ◽  
Heavy Duty Vehicle ◽  
Low Emission ◽  
Heavy Duty Vehicles

Economic incentive concepts that might reduce the likelihood that heavy-duty vehicle (HDV) operators will move their base operations out of California as a result of potential low-emission standards for HDVs based in the state are examined. In particular, 11 economic incentives that fall into the categories of rebates, taxes and fees, loans, and trading measures are examined. The results support the adoption of a fee-bate system under which registration fees would be based on the emission contributions of HDVs. Such a system could be applied to instate and out-of-state HDVs, thereby eliminating the incentive for operators to relocate outside California while encouraging the purchase and use of low-emission HDVs.

Modelling the longitudinal braking dynamics for heavy-duty vehicles

2021 ◽  
pp. 095440702110045
Author(s):  
İbrahim Can Güleryüz ◽  
Özgün Başer
Keyword(s):  
Response Time ◽  
System Model ◽  
Pneumatic System ◽  
Brake System ◽  
System Response ◽  
Heavy Duty ◽  
Matlab Simulink ◽  
Time Prediction ◽  
Heavy Duty Vehicle ◽  
Heavy Duty Vehicles

This paper establishes a reliable heavy-duty braking system model that can be used for response time prediction and for vehicle braking calculations regarding the legislative requirements. For the response time prediction, a pneumatic system model of a heavy-duty vehicle is constructed by Matlab Simulink in consideration of service brake layout. To ensure the accuracy of system parameters related with pneumatic system response time experiments are conducted on two different 4 × 4 heavy-duty vehicles. The numerically calculated response time results are validated with experimental data. To improve the response time of the vehicle, design modifications are conducted on the pneumatic brake system properties. To check the compliance of the pneumatic brake system design with legislative requirements of UN Regulation 13, heavy-duty vehicle brake system (HVBS) model is developed by using Matlab Simulink. HVBS model is composed of longitudinal vehicle and wheel dynamics, Magic Formula tyre model, wheel slip and the experimentally verified heavy-duty pneumatic system model. The braking performance analyses are conducted by using HVBS model to compare the design alternatives in accordance with the legal requirements in terms of service braking and secondary braking conditions.

scholarly journals A Novel Mechatronics Approach to Measure The Payload of Heavy Duty Vehicle

2018 ◽  
Vol 15 (1) ◽  
pp. 16-19 ◽  
Author(s):  
◽  
A.Y. Patil ◽  
R. Savadi ◽  
C.N. Shet ◽  
B. B. Kotturshettar ◽  
...  
Keyword(s):  
Physical Parameter ◽  
Paradigm Shift ◽  
Future Market ◽  
Simulation Approach ◽  
Heavy Duty ◽  
Heavy Duty Vehicle ◽  
The Future ◽  
Heavy Duty Vehicles

Abstract We are in an era of MEMS and NEMS, to be precise a product with lean and an integral of ‘n’ number of electromechanical elements. For example, nearly 80% of components are electrical/electronics in an automobile unit. This leads to think on the future market, that would witness a paradigm shift from Mechanical centric systems to Mechatronics systems. An approach was implemented in this paper to see through how a measurement of physical parameter can be dealt with principles of Mechatronics. Measurement of heavy duty vehicles payload is a concern, as there exists a difficulty in identifying the location and capacity of weigh bridge units. To address this issue an experimental and simulation approach was adopted to quantify/correlate the results.

scholarly journals Accelerating to zero: speeding up the decarbonization of heavy-duty vehicles in the EU

2021 ◽  
Author(s):  
Maria Xylia ◽  
◽  
Jindan Gong ◽  
Olle Olsson ◽  
Frances X. Johnson
Keyword(s):  
Energy Efficiency ◽  
Current Status ◽  
Heavy Duty ◽  
Heavy Duty Vehicle ◽  
The Eu ◽  
Heavy Duty Vehicles

The objective of this report is to analyse the current status and outlook for decarbonization of the heavy-duty vehicle sector in the EU. The authors focus on developments over the coming 10 years, and how much the sector’s emissions could be reduced through energy efficiency improvements, electrification, and increased biofuel deployment.

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