Izvorni znanstveni članak
https://doi.org/10.1080/00051144.2017.1361612
An improved startup mode using clutch coupling for in-wheel electric vehicle drives
Ping Xiong
; School of Electrical and Electronic Engineering, Huazhong University of Science & Technology, Wuhan, Hubei, P.R. China
Chenglin Gu
; School of Electrical and Electronic Engineering, Huazhong University of Science & Technology, Wuhan, Hubei, P.R. China
Sažetak
By introducing a new type of clutch into the driveline system of an in-wheel drive electric vehicle, a flexible connection has been developed to replace the rigid one between the hub and the motor. The driving motor can realize variable idling, unlike the internal combustion
engine, which needs a minimum rotational speed. This paper proposes a new startup method that utilizes the initial kinetic energy of the motor to achieve a smooth and fast acceleration of the wheel speed from zero to the expected motor speed. First, the powertrain system, including the driving motor, the clutch and the vehicle resistance, is modelled. Second, factors influencing the starting current and the jerk level during the starting process are investigated.
In consequence, the idle speed can be interpreted as a tunable variable that determines the tradeoff between the torque capacity and the jerk level. Finally, simulation and experiments on a laboratory test rig are performed. The results validate that the proposed variable-idle speed control strategy has a lower jerk level and lower starting current when compared with those using a direct start under the same load condition.
Ključne riječi
Clutch coupling; startup mode; variable-idle speed; vehicle jerk
Hrčak ID:
203345
URI
Datum izdavanja:
19.9.2017.
Posjeta: 762 *