The first electric motor axle operation for electric buses
Maximized efficiency with know-how
HYUNDAI TRANSYS developed driving systems for hybrid and electric cars with the preparation of commercial-vehicle electrification. In-wheel motor system is the powertrain for electric buses by integrating motor and axle. The in-wheel motor system combined with HYUNDAI TRANSYS distinctive technology is the priceless output of years of experience in commercial vehicles.
HYUNDAI TRANSYS maximized driving performance efficiency with optimal gear ratio calculation, which is eco-friendly regarding electric motor power source. There are full line-up models from large-size buses to sedan and commercial-vehicle.
Key Feature 1
Electric motor system
Low emission and noise with the eco-friendly electric motor power source.
Key Feature 2
Optimal efficiency
Optimal efficiency by replacing the second reduction parts with simple planetary gears for reducing pressure from the opposite direction.
Key Feature 3
Durability
Securing reliability in safety by enhancing the solidity of the frame body with high-firmness materials and thicker blades.
Banjo – Heavy (R178HT)
01020304
01
Motor
Water cooling type PMSM
Motor and axles are positioned in the left and right in-wheel houses. With a high reduction single gear ratio installed in a confined place, the input shaft (motor output shaft) and output shaft (wheel) of reduction gears are arranged in an offset sequence. It provides less-noise and vibration while driving with better space utilization in commercial-vehicle. In-wheel motor with axles controls wheels directly and minimizes power loss while driving force transmission.
02
Gear
The 2-speed single reduction gear ratio divided into the first and second reduction parts provides a high reduction gear ratio at 23:1. · The first parallel type reduction gear (helical gear application) · The second planetary reduction gear (helical gear application)
Motor and axles are positioned in the left and right in-wheel houses. With a high reduction single gear ratio installed in a confined place, the input shaft (motor output shaft) and output shaft (wheel) of reduction gears are arranged in an offset sequence. It provides less-noise and vibration while driving with better space utilization in commercial-vehicle. In-wheel motor with axles controls wheels directly and minimizes power loss while driving force transmission.
03
Reduction gear housing
Reduction gear durability improvement with the application of robust case designs for vibration and impact support, in-housing oil passage for gear and bearing lubrication, force-feed lubrication system and optimal lubricant churning.
Motor and axles are positioned in the left and right in-wheel houses. With a high reduction single gear ratio installed in a confined place, the input shaft (motor output shaft) and output shaft (wheel) of reduction gears are arranged in an offset sequence. It provides less-noise and vibration while driving with better space utilization in commercial-vehicle. In-wheel motor with axles controls wheels directly and minimizes power loss while driving force transmission.
04
Hub assembly
The second hub reduction gear composed with a body and carrier part rotate the wheels.
Motor and axles are positioned in the left and right in-wheel houses. With a high reduction single gear ratio installed in a confined place, the input shaft (motor output shaft) and output shaft (wheel) of reduction gears are arranged in an offset sequence. It provides less-noise and vibration while driving with better space utilization in commercial-vehicle. In-wheel motor with axles controls wheels directly and minimizes power loss while driving force transmission.
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Applicable specification
Application model : Electric Bus (Elec City), Refractive Bus, Double-decker Bus
