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BYGEN History
Business Opportunities
BYGEN History
2012
August
Bygen incorporated, focusing on research and development of transmission
December
ISO acquired, and venture approved by IBK
2013
November
Patent submitted for wheel with spokes to be able to manage tension
Patent registered for fordable handle with stem
2014
January
Patent registered for ball bearing
June
Patent registered for Direct Multi-speed Transmission Hub (“Direct Hub”)
2015
March
Complete development of Direct Hub
2016
February
Tech development launched for Multi-speed Transmission for motor based on Direct
    Hub tech
December
Multi-speed transmission (In-Wheel type) developed for 250W motor
3-speed Manual, Gear ratio 400%
In-house test in own-built prototype electric motorcycle with motor and transmission
    in front wheel
2017
August
Multi-speed transmission (In-Wheel type) developed for 1KW motor
4-speed Auto, Gear ratio 400%
In-house test in electric motorcycle with motor and transmission in rear wheel
2018
January
Multi-speed transmission (In-Wheel type) developed for 3KW motor
4-speed Auto, Gear ratio 426%
In-house test in electric motorcycle with motor and transmission in rear wheel
July
Multi-speed transmission (In-Wheel type) developed for 750W motor
4-speed Auto, Gear ratio 300%
In-house test in own-built prototype electric motorcycle with motor and transmission
    in both front and rear wheel
World-first two wheel driven electric motorcycle with total output power of 1.5KW
    (750W x 2)
September
Authorized third-party test run by Seoul National University of Science & Technology
    for EV2W with transmission
December
Under developing 5-speed auto transmission (In-Wheel) with gear ratio of 352%
    (difference of gear ratio between gears is under 40%)
※ Can-be-installed in wheel or any place of axles
2019
March
In-Wheel 5 gears auto transmission developed for 2kW(1kW × 2)
   Prototype EV2W with In-Wheel 5 gears auto transmission in both front and rear wheel
July
In-house PCU(Powertrain Controll Unit) development
   MCU(Motor Controll Unit) + TCU(Transmission Controll Unit)
   Independent and core powertrain (PCU+Motor+Transmission) system is constructed.
   * Sophisticated and state-of-the-art TCU is developed by in-house technology
November
In-Wheel 6 gears auto transmission developed for 3kW(in rear wheel)
   Because initial torque of electric motor is greater than ICE, shift shock in EV is stronger than ICE’s.
   That requires EV to have 6 gears at least for seamless shift and minimum gear ratio of 400%.
   Bygen decided 6 gears transmission with 400% gear ratio as a mass product

December
Zero Shift Time-lag
   First tech overcoming 0.2 second time lag.
   Shock absorbing tech precedes “Zero Sift Time-lag”.
   Synthesizing tech with hardware (transmission) and software (TCU).
   
Hard to duplicate
2020
February
Own-built EV2W with In-Wheel 6 gears auto transmission for 3kW(in rear wheel)
※ EV4W test is scheduled in 2020.