Study of energy consumption of a hybrid vehicle in real-world conditions

Mamala, Jarosław; Graba, Mariusz; Bieniek, Andrzej; Prażnowski, Krzysztof; Augustynowicz, A.; Śmieja, Michał

doi:10.17531/ein.2021.4.6

Cited by 11 publications

(12 citation statements)

References 35 publications

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“…It has been experimentally found that the range of a passenger car is consistent with the data provided in the vehicle homologation certificate but under the condition of an appropriate ambient temperature of 18 • C. In the conditions of a negative outside temperature of −15 • C, the range decreases by almost four times [3]. Additionally, supercapacitors have become one of the most promising energy-storage systems as they present multifold advantages of a high power density, fast charging-discharging, and long cyclic stability.…”

Section: Introductionsupporting

confidence: 75%

The Concept of Using an Expert System and Multi-Valued Logic Trees to Assess the Energy Consumption of an Electric Car in Selected Driving Cycles

et al. 2022

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This paper presents the concept of an expert system supporting the decision-making process of rational energy consumption by an electric car. The driving style and the average speed achieved are very important in terms of the driving range. In addition, the influence of ambient temperature on the efficiency of the electric vehicle and ultimately on energy consumption is very important. The proposed system, based on the method of multi-valued logic trees, allows minimizing the objective function, which is aimed at minimizing the energy consumption of an electric car at different ambient temperatures. The generated decisions, directed to the energy management system, can be processed in a variety of temporal and situational dimensions. The application of the system can also provide prompts to the driver on how to adjust the driving style by operating the accelerator and brake pedal. The expert system is an open system, allowing for further generalizations and modifications.

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Section: Introductionsupporting

confidence: 75%

The Concept of Using an Expert System and Multi-Valued Logic Trees to Assess the Energy Consumption of an Electric Car in Selected Driving Cycles

et al. 2022

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“…This parameter is not regulated by the rules, but the need to limit it should ensure the smoothness of transition processes and prevent a negative impact on the well-being of passengers. For example, for high-speed elevators, the comfort jerk value less than 1.0 m/s 3 , and according to research a jerk less than 0.2 m/s3 does not cause a person to feel acceleration or deceleration [22][23][24][25]. If the pneumatic part of the suspension control system provides significant dynamics of changing the position of the body, it becomes necessary to limit the dynamics of gas-dynamic processes in the drive.…”

Section: The Methods Of Controlling the Level Of The Vehicle Bodymentioning

confidence: 99%

Accuracy and durability increasing of the body level control systems in the immobile state of the vehicle

Savchenko¹,

Mykhalevych²,

Dróździel³

et al. 2022

Diagnostyka

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Pneumatic suspension is increasingly used in many cars. Control of a car body level is the main function of the pneumatic suspension. The experimental determination of the pneumatic spring characteristics suitable for the design and modeling of the car level control system is presented. The characteristics of the pneumatic spring are determined, that determine the quality of the control system. The effect of temperature changes inside the pneumatic spring is experimentally determined due to heat exchange on air pressure and vertical force during alignment of the car body. In addition, through modeling is evaluated by changing the level of the car body due to the impact of heat transfer. An original method of controlling the lifting and lowering of the vehicle body is proposed. The method is based on the energy balance and is the basis for reducing the number of strokes of the electropneumatic valve. The change in the level of the body due to the temperature effect is leveled due to the indirect consideration of this effect using the pressure sensor in the cylinder.

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“…In particular, in urban driving conditions, which often involve vehicle speed variations, the vehicle's dynamic and energy parameters vary to a large extent. In the work of Mamala et al [22], the authors have focused on the variation in the vehicle's energy demand, resulting from transient traffic conditions and the drivetrain type: hybrid, electric or internal combustion, demonstrating that the use of an internal combustion engine-based drivetrain generates approx. 3.7 times higher energy cost compared to an electric drivetrain, and approx.…”

Section: Introduction 1drivetrain Operating Conditions and Its Energy...mentioning

confidence: 99%

Analysis of energy efficiency and dynamics during car acceleration

Graba¹,

Bieniek²,

Prażnowski³

et al. 2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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In this work, the authors focused on analyzing the energy efficiency and dynamics during car acceleration, featuring investigation of acceleration dynamics under various acceleration intensities. The tests were performed in the speed range between 45 km/h and 120 km/h, at a constant gear ratio. This enabled obtaining variable dynamic parameters of the acceleration process, ranging from about 0.1 to 1.4 m/s2 , and recording variation in fuel consumption from 6.28 to 27.03 dm3 /100km. The study focused on determining the relation between fuel consumption, energy efficiency and vehicle acceleration depending on the available drivetrain power. The relation between fuel consumption and vehicle acceleration was described by using the dynamic index. The proposed dynamic index takes into account the energy (from burned fuel) and vehicle acceleration intensity to obtain an objective metric for characterizing the acceleration process. The aforementioned index takes the form of the passenger car movement energy quality index and can be related to widely known physical properties, thus ensuring its universality. The index expresses the energy expenditure within the time needed to accelerate a vehicle weighing 1kg by a 1m distance. As opposed to other criteria that are applied to the assessment of passenger cars dynamics, the index shows a high determination coefficient R2 in excess of 0.99, and can be used as a universal metric to test other vehicle types.

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Study of energy consumption of a hybrid vehicle in real-world conditions

Cited by 11 publications

References 35 publications

The Concept of Using an Expert System and Multi-Valued Logic Trees to Assess the Energy Consumption of an Electric Car in Selected Driving Cycles

The Concept of Using an Expert System and Multi-Valued Logic Trees to Assess the Energy Consumption of an Electric Car in Selected Driving Cycles

Accuracy and durability increasing of the body level control systems in the immobile state of the vehicle

Analysis of energy efficiency and dynamics during car acceleration

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