TY - JOUR
T1 - Development of Alternative Steering Models for Ev Bus
T2 - A Preliminary Study on the Conversion of Hydraulic to Electric Power Steering
AU - Nazaruddin, N.
AU - Sumarsono, Danardono A.
AU - Adhitya, Mohammad
AU - Heryana, Ghany
AU - Siregar, Rolan
AU - Prasetya, Sonki
AU - Zainuri, Fuad
N1 - Funding Information:
The authors are grateful to the University of Indonesia through the «PUTI Doktor UI 2020» scheme with contract number NKB-678/UN2.RST/HKP.05.00/2020 and the Indonesian government through the Indonesian Endowment Fund for Education (LPDP) for funding this research.
Publisher Copyright:
Copyright © 2021, Authors. This is an open access article under the Creative Commons CC BY license
PY - 2021
Y1 - 2021
N2 - This study aims to develop alternative steering models for the EV bus. The EV bus uses its energy source from the main 384 VDC 300 Ah battery and the secondary battery with a capacity of 25.8 VDC 100 Ah. The use of energy in this electric bus is divided into the main components, namely the BLDC motor as the main drive of 200 kW, 15 kW of air conditioning, 7.5 kW of hydraulic power steering, a compressor for the air braking system of 4 kW, and accessory components. The other is 2.4 kW. It is expected that this 7.5 kW electric power can be reduced by an electric system by up to 20 %. This research will study the steering system with an electric power system (EPS) to convert the hydraulic steering system (HPS). With this EPS system, it is hoped that controlling the vehicle’s motion towards the steer by wire will be easier. Initially, data were collected from the types of large vehicles from various well-known brands about the steering system used. A large commercial vehicle that purely uses EPS is not yet found. The model developed for EPS on this electric bus is through the reverse engineering method by redrawing all the components involved in the previous steering system. Because this type of EV bus is included in the upper mid-size class, this paper proposes two new EPS models, namely the addition of an assist motor on the drag link and on the steering rack. The links involved in this system are wheel drive, steering column, lower steering column, rack and pinion gear, assist motor, drop link, drag link, drop link extension, drag link extension, tie rod, knuckle, kingpin, tire, axle beam and several others. The values of stiffness, inertia, and damping of each link will affect the driver’s torque and the assist motor as a wheel speed function on this electric bus. The steering structure of the EV bus consists of a truss structure and a frame structure with a kinematic structure consisting of two four-bar linkages joined together.
AB - This study aims to develop alternative steering models for the EV bus. The EV bus uses its energy source from the main 384 VDC 300 Ah battery and the secondary battery with a capacity of 25.8 VDC 100 Ah. The use of energy in this electric bus is divided into the main components, namely the BLDC motor as the main drive of 200 kW, 15 kW of air conditioning, 7.5 kW of hydraulic power steering, a compressor for the air braking system of 4 kW, and accessory components. The other is 2.4 kW. It is expected that this 7.5 kW electric power can be reduced by an electric system by up to 20 %. This research will study the steering system with an electric power system (EPS) to convert the hydraulic steering system (HPS). With this EPS system, it is hoped that controlling the vehicle’s motion towards the steer by wire will be easier. Initially, data were collected from the types of large vehicles from various well-known brands about the steering system used. A large commercial vehicle that purely uses EPS is not yet found. The model developed for EPS on this electric bus is through the reverse engineering method by redrawing all the components involved in the previous steering system. Because this type of EV bus is included in the upper mid-size class, this paper proposes two new EPS models, namely the addition of an assist motor on the drag link and on the steering rack. The links involved in this system are wheel drive, steering column, lower steering column, rack and pinion gear, assist motor, drop link, drag link, drop link extension, drag link extension, tie rod, knuckle, kingpin, tire, axle beam and several others. The values of stiffness, inertia, and damping of each link will affect the driver’s torque and the assist motor as a wheel speed function on this electric bus. The steering structure of the EV bus consists of a truss structure and a frame structure with a kinematic structure consisting of two four-bar linkages joined together.
KW - assist motor
KW - four-bar linkage
KW - frame structure
KW - pinion
KW - rack
KW - steering column
KW - torsion motor
KW - truss structure
KW - vehicle speed
KW - wheel drive
UR - http://www.scopus.com/inward/record.url?scp=85108619521&partnerID=8YFLogxK
U2 - 10.15587/1729-4061.2021.227329
DO - 10.15587/1729-4061.2021.227329
M3 - Article
AN - SCOPUS:85108619521
SN - 1729-3774
VL - 3
SP - 37
EP - 46
JO - Eastern-European Journal of Enterprise Technologies
JF - Eastern-European Journal of Enterprise Technologies
ER -
