Fuel Injection Control - SSANGYONG Actyon 2012.12 Manual

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(2) Fuel injection control

a. Multi injection
Fuel injection process consists of 3 steps: Main Injection, Pilot Injection, Post Injection
Injection Function
Pilot 1 Reduces PM by injecting before
main injection.
Reduces NOx and noise by
Pilot 2
shortening main injection delay
due to flammability
Controls NOx emission level,
Pre
Combustion noise and
Stable idle
▶
Pilot injection
Main Produces engine power
After PM control
Reduces PM by enabling fuel
Post 1
activation.
Activates CDPF by increasing
Post 2
exhaust gas temperature and
supplying reduction material
▶
Multi injection