[논문]농작업 부하데이터를 활용한 44 kW급 전기구동 트랙터의 E-driving 시스템 설계 검증

백승윤; 백승민; 전현호; 이준호; 김완수; 김용주

doi:10.7839/ksfc.2022.19.4.036

농작업 부하데이터를 활용한 44 kW급 전기구동 트랙터의 E-driving 시스템 설계 검증
Design Verification of an E-driving System of a 44 kW-class Electric Tractor using Agricultural Workload Data 원문보기

드라이브ㆍ컨트롤 = Journal of drive and control, v.19 no.4, 2022년, pp.36 - 45

백승윤 (Department of Smart Agriculture Systems, Chungnam National University) , 백승민 (Department of Smart Agriculture Systems, Chungnam National University) , 전현호 (Department of Smart Agriculture Systems, Chungnam National University) , 이준호 (Department of Smart Agriculture Systems, Chungnam National University) , 김완수 (Department of Bio-industrial Machinery Engineering, Kyungpook National University) , 김용주 (Department of Smart Agriculture Systems, Chungnam National University)

Abstract ▼ AI-Helper

The aim of this study was to verify an E-driving system of a 44 kW-class electric tractor using agricultural workload data. Workload data were acquired during field test (plow tillage, rotary tillage, loader operation, field driving, asphalt driving) using a conventional tractor with a load measurement system. These workload data were converted to data of a 44 kW-class tractor based on the load factor of the engine. These data were used to verify the design of the E-driving system of an electric tractor. High-load operations such as plow tillage, rotary tillage, and loader operation could be performed at stage L and stage M. High-speed operation (asphalt driving) could be effectively performed at stage H using a rated rotational speed of the motor. As a result, the E-driving system of the electric tractor was possible to perform all major agricultural operations according to gear stages of range shift. Based on results of this research, we plan to develop an electric tractor equipped with an E-driving system and conduct research on actual vehicle verification in the future.

주제어

표/그림 (15)

그림 Fig. 1 Power transmission system of the electric tractor
그림 Fig. 2 T-N curve of the electric motor used in this study
그림 Fig. 3 Measurement system of the conventional tractor used in this study
그림 Fig. 4 Photos of field test using conventional tractor (a) plow tillage; (b) rotary tillage; (c) loader operation; (d) asphalt and field driving operation
그림 Fig. 5 Engine load factor and torque according to rotational speed of the agricultural operations (a) plow tillage; (b) rotary tillage
그림 Fig. 6 Torque of front and rear wheel of the 44 kW class tractor according to working time during plow tillage
그림 Fig. 7 Torque of front and rear wheel and PTO of the 44 kW class tractor according to working time during rotary tillage
표 Table 1 Engine load factor of the tractor according to the agricultural operations
그림 Fig. 8 Torque of front and rear wheel of the 44 kW class tractor according to working time during loader operation
그림 Fig. 9 Torque of front and rear wheel of the 44 kW class tractor according to working time during filed driving
그림 Fig. 10 Torque of front and rear wheel of the 44 kW class tractor according to working time during asphalt driving
그림 Fig. 11 T-N curve of the motor and load data of 44 kW tractor with gear ratio (stage L) applied
그림 Fig. 12 T-N curve of the motor and load data of 44 kW tractor with gear ratio (stage M) applied
그림 Fig. 13 T-N curve of the motor and load data of 44 kW tractor with gear ratio (stage H) applied
표 Table 2 Workability of agricultural operations according to the gear ratio of the range shift of the electric tractor

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