IV. Working principle
1. Electronic Throttle and Fly-by-wire Throttle
Along with rapid development of auto industry, auto manufacturers in America,
Germany, Japan and other countries successively adopted electronic throttle control
system early in 1990s. Electronic throttle control system mainly consists of throttle
pedal, pedal displacement sensor, ECU (electronic control unit), data bus wire, servo
motor and choker executing mechanism. Electronic throttle is generally adopted in
fairly new models. Electronic throttle is named in comparison with fly-by-wire throttle which features direct connection between throttle pedal and choker with thin steel