(2). VVT Control Strategy
Driving
Conditions
Intake Valve
Timing
Cause
Low-Load
Lag
Steady
Combustion
High Load, High
Speed
Lag
Increased Output
Characteristics
High Load, Low
Speed
Advance
Increased Torque
Medium-Speed
Condition
Advance
Improved
Fuel
Consumption
(3). Advance Process
3
4
2
1
5
FE02-2066b
Legend
1. Lag Chamber
2. Locking Pin
3. Advance Chamber
4. Rotor Blade
5. Bracket
In normal operation condition, the oil pump generated engine
oil pressure applies on the VVT solenoid valves. ECM controls
the VVT solenoid valve by pulse-width modulation. When ECM
needs VVT to adjust the intake valve to the maximum advance
position, ECM controlled the VVT solenoid valve opening is
100%. At this point the engine oil pressure applies to the
advance chamber, VVT rotor blades move in the opposite
direction relative to the crank angle and eventually stay at the
maximum position.
idling without load VVT actuator position will generally remain
at the 8 ° or so, due to intake valve mechanical opening angle
is 5 °, so the intake valve opens at idle with actual angle of 13
°.
(4). Lag Process
1
FE02-2067b
Legend
1. Lag Chamber
In normal operation condition, the oil pump generated engine
oil pressure applies on the VVT solenoid valves. ECM controls
the VVT solenoid valve by pulse-width modulation. When ECM
needs VVT to adjust the intake valve to the maximum lag
position, ECM controlled the VVT solenoid valve opening is
0%. At this point the engine oil pressure applies to the lag
chamber, VVT rotor blades move in the same direction relative
to the crank angle and eventually stay at the maximum position.
2-308
Engine Mechanical System JL4G18-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Содержание EC715 2009
Страница 4: ......
Страница 312: ...2 3 4 5 Fuel Injectors FE02 2022b 2 230 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 516: ...2 7 4 3 Front Muffler Assembly FE02 2032b 2 434 Exhaust System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 517: ...2 7 4 4 Rear Muffler Assembly FE02 2033b Engine Exhaust System JL4G18 D 2 435 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 519: ...2 7 4 6 Front Muffler Heat Shield FE02 2034b Engine Exhaust System JL4G18 D 2 437 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1164: ......
Страница 1257: ...Next Step 9 System normal Brake System ABS TCS EBD ESP 6 93 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1278: ...6 7 8 Special Tools and Equipment 6 7 8 1 Trigger Tool FE06 1007b 6 114 TPMS Brake System EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1412: ...9 2 6 4 Warning lamp Always On Schematic 9 14 Airbag System Safety Protection Device EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1703: ...Rear Wiper Motor Hatchback FE11 2009c Body Electric Wipers Washers System 11 219 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1704: ...Washer Fluid Tank Sedan FE11 2010b 11 220 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1705: ...Washer Fluid Tank Hatchback FE11 2010c Body Electric Wipers Washers System 11 221 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1706: ...Rear Washer Nozzle Hatchback FE11 2011c 11 222 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1734: ...Next Step 13 System normal 11 250 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1860: ...BCM FE11 0803b 11 376 Remote Anti theft System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1951: ...Reverse Radar Control Module FE11 1207b Body Electric Reverse Radar 11 467 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1954: ...16 R Control Module Power Supply Gear In Reverse 12 V 11 470 Reverse Radar Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 2008: ......
Страница 2104: ...FE12 0085c 2 Install the hatchback seal 12 96 Interior Trim Body Sheet Metal and Painting EC718 EC718RV EC715 EC715RV 10 2009 ...