The usage of CAN-Bus messages for engine power determination

Determination of the actual power of tractor's engine in the operation can be done by calculation which requires the use of a range of parameters such as coefficient of rolling resistance, mechanical efficiency, the moments of inertia, etc. Their values are usually tabulated and therefore the engine power cannot be determine without simplifying. Another solution is to use the actual engine torque message from the CAN-Bus, which brings a specific value of the actual torque. The aim is to use the current torque to calculate the engine power in the deployment of tractor's set in transport operation. The results show that at a uniform movement of the flat section the engine power reached 73 kW. When driving uphill, the value of the actual power reached from 130 to 150 kW depending on the selected gear. Using the actual parameters of torque makes possible to identify the known full speed characteristics of the current engine without the need for assembly demanding measurement techniques.

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Performance Investigation of an Eight Cylinder Gasoline Engine

Volume 12: Transportation Systems ◽

10.1115/imece2014-40417 ◽

2014 ◽

Author(s):

Ali Kilicarslan ◽

Mohamad S. Qatu

Keyword(s):

Experimental Work ◽

Engine Speed ◽

Gasoline Engine ◽

Mechanical Efficiency ◽

Effective Pressure ◽

Air Mass ◽

Engine Torque ◽

Gasoline Engines ◽

Temperature And Pressure ◽

Engine Power

Performance investigation of a Chevrolet 5.7, eight cylinder gasoline engine is experimentally carried out at laboratuary conditions by means of the special softwares called “NetDyn” and “WinDyn”. This experimental work is intended to make contribution to the researchers that experimentally analyze the parameters of gasoline engines with the engine speed in detail. During the experiments, the engine speed is changed from 2500 rpm to 5250 rpm with 250 rpm intervals and steptime for succesive speeds is kept constant as 10 s. Engine power, engine torque, fuel and air flowrates per kW, mechanical efficiency, oil temperature and pressure, break mean effective pressure and exhaust temperatures are measured as a function of engine speed. As the engine speed was increased, it was observed that the air mass flow rate, exhaust and oil temperatures increased while the break mean effective pressure, mechanical volumetric efficiency, and engine torque decreased. Engine power increased between the engine speeds of 2500 rpm and 3750, but it decreased between the speeds of 3750 rpm 5246 rpm.

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Determination of the Moments of Inertia of the Human Body and Its Limbs

10.1007/978-3-662-11236-6 ◽

1988 ◽

Cited By ~ 7

Author(s):

Wilhelm Braune ◽

Otto Fischer

Keyword(s):

Human Body ◽

Moments Of Inertia

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Raman Sensor for the Determination of Gas Solubility

Physchem ◽

10.3390/physchem1020012 ◽

2021 ◽

Vol 1 (2) ◽

pp. 176-188

Author(s):

Gregor Lipinski ◽

Markus Richter

Keyword(s):

Carbon Dioxide ◽

Gas Separation ◽

Accurate Determination ◽

Measurement Techniques ◽

Screening Tools ◽

Measuring System ◽

Separation Processes ◽

Use Of Resources ◽

Gas Solubilities

Efficient and environmentally responsible use of resources requires the development and optimization of gas separation processes. A promising approach is the use of liquids that are designed for specific tasks, e.g., the capture of carbon dioxide or other greenhouse gases. This requires an accurate determination of gas solubilities for a broad range of temperatures and pressures. However, state of the art measurement techniques are often very time consuming or exhibit other pitfalls that prevent their use as efficient screening tools. Here, we show that the application of Raman spectroscopy through a compact measuring system can simplify data acquisition for the determination of gas solubilities in liquids. To demonstrate that this approach is expedient, we determined gas solubilities of carbon dioxide in water for three isotherms T = (288.15, 293.15, 298.15) K over a pressure range from p = (0.5–5) MPa and in three imidazolium-based ionic liquids for one isotherm T = 298.15 K at pressures from p = (0.1–5) MPa. When compared to data in the literature, all results are within the reported uncertainties of the measurement techniques involved. The developed analysis method eliminates the need for a lengthy volume or mass calibration of the sample prior to the measurements and, therefore, allows for fast screening of samples, which can help to advance gas separation processes in scientific and industrial applications.

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Precise determination of the power transmission coefficient of low-loss passive linear two-ports by RF noise power and RF attenuation measurement techniques

Proceedings of Conference on Precision Electromagnetic Measurements Digest ◽

10.1109/cpem.1994.333207 ◽

2002 ◽

Author(s):

F.-I. Buchholz ◽

D. Schubert ◽

D. Stumpe

Keyword(s):

Transmission Coefficient ◽

Power Transmission ◽

Measurement Techniques ◽

Precise Determination ◽

Noise Power ◽

Low Loss ◽

Attenuation Measurement ◽

Power Transmission Coefficient ◽

Rf Noise

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The Study of Fuel-Saving Technology of GSI

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1070-1072.392 ◽

2014 ◽

Vol 1070-1072 ◽

pp. 392-397

Author(s):

Jun Hui Xu ◽

Ming Qiu Gao ◽

Ji Qiang Gao ◽

Xiang Bao

Keyword(s):

Fuel Consumption ◽

Fuel Economy ◽

Rolling Resistance ◽

Fuel Saving ◽

Pressure Monitoring ◽

Tire Pressure ◽

Engine Efficiency ◽

Tire Pressure Monitoring System ◽

The Eu

In the background of the main technologies of fuel economy in automobiles developed to a certain stage, it is necessary to reduce fuel consumption and increase the engine efficiency by developing other auxiliary technologies such as improving the ratio of pure energy drive, low rolling resistance tires, tire pressure monitoring system and gear shift indicators (GSI). This article introduces the principle of GSI, analyses how GSI works in improving engine efficiency, and then evaluates the method for determination of the relative saving rate of fuel consumption, which method was introduced in the EU regulation EC No. 65/2012.

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Bias in the Determination of Dialysate Sodium Concentration Set According to Conductivity Relative to Indirect Ion-Selective Measurement Techniques

Kidney International Reports ◽

10.1016/j.ekir.2020.03.001 ◽

2020 ◽

Vol 5 (6) ◽

pp. 931-934

Author(s):

Rayees Sheikh ◽

Swapnil Hiremath ◽

Edward G. Clark ◽

Ayub Akbari ◽

Christopher McCudden ◽

...

Keyword(s):

Measurement Techniques ◽

Sodium Concentration ◽

Dialysate Sodium

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Analytical determination of application point and normal reaction arm when rolling a wheel on a drum

MATEC Web of Conferences ◽

10.1051/matecconf/202134100039 ◽

2021 ◽

Vol 341 ◽

pp. 00039

Author(s):

Maria Karelina ◽

Tatyana Balabina ◽

Alexey Mamaev

Keyword(s):

Rolling Resistance ◽

Analytical Determination ◽

Support Surface ◽

Rigid Support ◽

Normal Reaction ◽

Normal Forces ◽

Elastic Wheel ◽

Wheel Rolling ◽

Force Equilibrium

Evaluation of the rolling resistance of car tires is now often performed on drum stands like car tests. This necessitates the study of the mechanics of interaction between the wheel and the drum in order to determine its force and kinematic characteristics, including the values and points of application of tangential and normal forces in contact with the drum. These problems can be solved taking into account that the mechanics of elastic wheel rolling on a drum is the same as when rolling on a flat rigid support surface. In this paper, from consideration of the mechanics of interaction between an elastic wheel and a drum, using the equations of power balance and force equilibrium of the wheel, the equations for determining the point of normal reaction in contact and its arm relative to the wheel axis during its rolling along one and two drums have been derived.. These dependencies have a simple form and can be applied when considering the rolling of both a single wheel and the car as a whole on a drum stand.

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Effect of the load of drive axles and high of the curtain on stress-strain properties of the tractor

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun200755040077 ◽

2007 ◽

Vol 55 (4) ◽

pp. 77-88 ◽

Cited By ~ 1

Author(s):

Tomáš Šmerda ◽

František Bauer

Keyword(s):

Experimental Measurement ◽

Rolling Resistance ◽

Front Axle ◽

Load Reduction ◽

Chassis Dynamometer ◽

Stress Strain

The goal of the experimental measurement was determination of relation among weight load of the tractor together, hitch height changes and drawbar characteristic. The measurement was realized on chassis dynamometer at MUAF in Brno. The first step consisted of rated speed characteristics measurement in conformity with OECD demands. The drawbar characteristic was measured under two selected gears. Adding 980 kg to the nominal wight of the tractor brought increasing maximal drawbar power and drawbar force together with decreasing of slip. The highest differences were observed during the mesurement of fifth gear shifted. The drawbar force grew up to 18.9% as well as the maximal drawbar power (15.2%). The maximal drawbar power at ninth gear gave 62.8 kW. The hitch height was setting to 0.54 m; 0.64 m and 0.74 m. When the hitch height was set from 0.54 m to 0.74 m the drawbar force an power on front axle was lower by reason of load reduction. As can be noticed from the final drawbar characteristics, both curves are identical up to border of maximal drawbar power. Small differences in the area of the highest slips can be ascribed to the rolling resistance.

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