Method for determining the characteristics of engines of a car equipped with a hybrid power unit control system during road tests
Abstract
The paper examines the problems and corresponding limitations of using known methods for determining the characteristics of engines using the braking method when testing vehicles equipped with hybrid power units (HPU). The main goal of the article is to develop and justify an appropriate method for studying the characteristics of series-parallel type HPU units.
The proposed method is computational and experimental and is based on the sequential organization of the road-testing process. The technique is based on the use of diagnostic equipment to obtain on-board telemetry data, as well as a dynamometer device that allows you to determine the torque on the drive wheel - an appropriate design is proposed and the working process is considered.
On the first, changes are made when the car is moving in various modes exclusively on electric traction. The second stage of testing, with comprehensive consideration of the data from the first stage, makes it possible to determine the characteristics of the remaining HPU units. As an example, the article considers the Toyota Prius 2015 model year.
The developed method is intended to determine the mechanical characteristics of electric machines and their efficiency characteristics in motor and generator modes, as well as the partial speed characteristics of internal combustion engines in terms of effective power and specific effective fuel consumption.
About the Authors
Nikita V. Savenkov
DonNACEA
Russian Federation
Russian Federation
Candidate of Sciences (Technical), associate professor
Oleg O. Zolotarev
DonNACEA
Russian Federation
Russian Federation
assistant
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Review
Рецензент: П.В. Душкин, канд. техн. наук, доц., МАДИ
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