The utility model discloses a communication formula combination switch for
electric motor car, it is designed to solve traditional
electric motor car switch wire harness is numerous,
layout is in disorder, controller volume big and the problem of low reliability. This combination switch includes integrated switch casing, set up in the switch
signal acquisition module of casing, microcontrol unit and
communication interface module. The switch
signal acquisition module is used for detecting user operation and generates original
electric signal, the microcontrol unit is used for encoding original
electric signal as standard
digital signal package, the
communication interface module is used for sending
digital signal package through a communication
bus to the main controller of vehicle. The utility model replaces traditional multichannel
analog signal transmission through digital communication mode, integrates power line, ground wire and communication
bus in single wire harness, greatly simplifies the wire harness quantity, optimizes handlebar head
layout, improves the reliability, expansibility and compactness of
system.