RETROFIT SYSTEM TO CONVERT A SEQUENTIAL MANUAL TRANSMISSION INTO A SEMIAUTOMATIC TRANSMISSION

摘要

A retrofit system detachably attached to a two-wheeler vehicle to convert a sequential manual transmission into a semi-automatic transmission. The retrofit system comprises two input units, a microcontroller, and gear shift actuator. The two input units are mounted at a distal end of a handlebar to receive a pressing gesture from a user and transmits a signal pertaining to gearshift. The first input unit and second input unit receives pressing gesture from user to upshift and downshift a gear through a prebuilt gearbox. The microcontroller receives the signal to initiate a first command to a clutch control microcontroller to actuate pneumatic piston-cylinder to disengage a clutch. The gear shift actuator receives the second command from microcontroller to rotate a shaft either in clockwise or anti-clockwise direction. The microcontroller then initiates third command to the clutch control microcontroller to operate the pneumatic piston-cylinder in opposite direction to re-engage the clutch.