Improving fuel efficiency for heavy-duty vehicles of 3.5–12 tonnes in India: Benefits, costs, and environmental impacts

A wide range of strategies for reducing energy consumption from heavy-duty vehicles have been explored from vehicle electrification to real-time vehicle energy management based on vehicle-to-vehicle and vehicle-to-infrastructure communication. Full electrification of heavy-duty vehicles can be challenging due to current limitations on battery energy density. However, hybridization and the implementation of high efficiency engines present other potential near-term solutions. In contrast to many prior studies that have explored the use of one or two of these techniques, this work discusses the combined influence of hybridization level, engine combustion mode, and connected energy management on fuel efficiency in heavy-duty applications. The impact of hybridization in different driving conditions is quantified and the effectiveness of hybrid powertrain structures with different engine combustion strategies is also explored. Utilizing an alternative combustion strategy can improve fuel efficiency by 5% in conventional and mild hybrids but was found to have a more minimal impact in full hybrids. An additional layer of complexity is also introduced when vehicles have some degree of connectivity and this influence on the energy management method is investigated by comparing control approaches which leverage current and future vehicle speed information. Connectivity and the ability to optimize energy production in real-time was found to be essential in uncertain cases and enable improvements in fuel consumption of up to 12% over baseline cases.

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Enhancement of fuel efficiency in heavy duty vehicles through integrated module of TEG, piezoelectric and regenerative braking solutions

Materials Today Proceedings ◽

10.1016/j.matpr.2021.10.372 ◽

2021 ◽

Author(s):

Dharmesh Yadav ◽

Rakesh Kumar ◽

Upendra Kulshrestha ◽

Anamika Jain ◽

Seema Rani

Keyword(s):

Fuel Efficiency ◽

Regenerative Braking ◽

Heavy Duty ◽

Heavy Duty Vehicles

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Fuel Efficiency Technology Potential for On-Road Heavy-Duty Vehicles in India

10.4271/2017-26-0145 ◽

2017 ◽

Author(s):

Benjamin Rodriguez Sharpe ◽

Oscar Delgado ◽

Mehul Garg

Keyword(s):

Fuel Efficiency ◽

Heavy Duty ◽

Heavy Duty Vehicles

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Safe and Ecological Speed Control for Heavy-Duty Vehicles on Long–Steep Downhill and Sharp-Curved Roads

Sustainability ◽

10.3390/su12176813 ◽

2020 ◽

Vol 12 (17) ◽

pp. 6813

Author(s):

Huifu Jiang ◽

Wei Zhou ◽

Chang Liu ◽

Guosheng Zhang ◽

Meng Hu

Keyword(s):

Traffic Congestion ◽

Load Transfer ◽

Fuel Efficiency ◽

Speed Control ◽

Vehicle Body ◽

Slip Angle ◽

Heavy Duty ◽

Speed Optimization ◽

Near Future ◽

Heavy Duty Vehicles

To contribute to the development of sustainable transport that is safe, eco-friendly, and efficient, this research proposed a safe and ecological speed control system for heavy-duty vehicles on long–steep downhill and sharp-curved roads under a partially connected vehicles environment consisting of connected heavy-duty vehicles (CHDVs) and conventional human-driven vehicles. This system prioritizes braking and lateral motion safety before improving fuel efficiency and ensuring traffic mobility at optimal status, and optimizes the speed trajectories of CHDVs to control the entire traffic. Speed optimization is modelled as an optimal control problem and solved by the iterative Pontryagin’s maximum principle algorithm. The simulation-based evaluation shows that the proposed system effectively reduces the peak temperature of the brake drums, the lateral slip angle of the vehicle wheels, and the lateral load transfer rate of the vehicle body; all these measurements of effectiveness are limited to safe ranges. A detailed investigation reveals that the proposed system reduces fuel consumption by up to 15.49% and inhibits the adverse effects on throughput. All benefits increase with the market penetration rate (MPR) of CHDVs and the traffic congestion level and reach significant levels under low MPRs of CHDVs. This indicates that the proposed system has good robustness for the impedance from conventional vehicles and could be implemented in the near future.

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Improved heavy-duty vehicle fuel efficiency in India, benefits, costs and environmental impacts

10.2172/1398495 ◽

2017 ◽

Cited By ~ 1

Author(s):

Anand R. Gopal ◽

Nihan Karali ◽

Ben Sharpe ◽

Oscar Delgado ◽

Anup Bandivadekar ◽

...

Keyword(s):

Environmental Impacts ◽

Fuel Efficiency ◽

Heavy Duty ◽

Heavy Duty Vehicle ◽

Vehicle Fuel Efficiency

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Regional and environmental impacts of expanding the heavy duty vehicle charge to the secondary road network in Austria

Empirica ◽

10.1007/s10663-012-9184-9 ◽

2012 ◽

Vol 39 (2) ◽

pp. 261-278 ◽

Cited By ~ 1

Author(s):

Karl W. Steininger ◽

Christoph Schmid ◽

Alexandra Tobin

Keyword(s):

Environmental Impacts ◽

Road Network ◽

Heavy Duty ◽

Heavy Duty Vehicle

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Driver Evaluation in Heavy Duty Vehicles Based on Acceleration and Braking Behaviors

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society ◽

10.1109/iecon43393.2020.9255274 ◽

2020 ◽

Author(s):

Mehmet Emin Mumcuoglu ◽

Gokhan Alcan ◽

Mustafa Unel ◽

Onur Cicek ◽

Mehmet Mutluergil ◽

...

Keyword(s):

Heavy Duty ◽

Heavy Duty Vehicles

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Dual Stage Multilevel Control for Heavy Duty Vehicles under Different Traffic Conditions

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2020.12.896 ◽

2020 ◽

Vol 53 (2) ◽

pp. 13850-13854

Author(s):

P. Polverino ◽

I. Arsie ◽

C. Pianese

Keyword(s):

Heavy Duty ◽

Traffic Conditions ◽

Dual Stage ◽

Heavy Duty Vehicles

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Parameter Estimation of a Countershaft Brake for Heavy-Duty Vehicles with Automated Mechanical Transmission

Processes ◽

10.3390/pr9061036 ◽

2021 ◽

Vol 9 (6) ◽

pp. 1036

Author(s):

Yunxia Li ◽

Lei Li

Keyword(s):

Parameter Identification ◽

Least Squares ◽

Dynamic Model ◽

Control Flow ◽

Mechanical Transmission ◽

Equivalent Resistance ◽

Heavy Duty ◽

Characteristic Parameters ◽

Resistance Torque ◽

Heavy Duty Vehicles

A countershaft brake is used as a transmission brake (TB) to realize synchronous shifting by reducing the automated mechanical transmission (AMT) input shaft’s speed rapidly. This process is performed to reduce shifting time and improve shifting quality for heavy-duty vehicles equipped with AMT without synchronizer. To improve controlled synchronous shifting, the AMT input shaft’s equivalent resistance torque and the TB’s characteristic parameters are studied. An AMT dynamic model under neutral gear position is analyzed during the synchronous control interval. A dynamic model of the countershaft brake is discussed, and its control flow is given. The parameter identification method of the AMT input shaft’s equivalent resistance torque is given on the basis of the least squares algorithm. The parameter identification of the TB’s characteristic parameters is proposed on the basis of the recursive least squares method (RLSM). Experimental results show that the recursive estimations of the TB’s characteristic parameters under different duty cycles of the TB solenoid valve, including brake torque estimation, estimation accuracy, and braking intensity estimation, can be effectively estimated. The research provides some reliable evidence to further study the synchronous shifting control schedule for heavy-duty vehicles with AMT.

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