Tayota Kamri's repair since 2001
1. Operation manual and to maintenance of the car
2. Engine
2.1. Petrol engines models 1AZ-FE and 2AZ-FE
2.2. Mechanical part of engines of models 1AZ-FE and 2AZ-FE
2.3. Petrol engine of model 1MZ-FE
2.3.1. General information
2.3.2. Mechanism of the drive of valves
2.3.3. Lubrication system
2.3.4. Cooling system
2.3.5. System of an admission and vyspusk
2.3.6. Fuel system
2.3.7. System of ignition
2.3.8. Control system of the engine
2.3.9. Basic elements of a control system of the engine
2.3.9.1. Sensor of an angle of rotation of a bent shaft
2.3.9.2. Sensor of provision of a cam-shaft
2.3.9.3. Sensor of provision of a pedal of management of fuel supply
2.3.9.4. EFI system (Electronic system of injection of fuel)
2.3.9.5. The ETCS-i system (An intellectual control system of a butterfly valve with the electric drive)
2.3.9.6. ACIS (Acoustic management of system of an admission)
2.3.9.7. The operating admission air valve
2.3.9.8. VSV (Vacuum valve)
2.3.9.9. Vacuum tank
2.3.9.10. The operating valve of an admission is closed (VSV is included)
2.3.9.11. The operating valve of an admission is open (VSV is switched off)
2.3.9.12. Air inlet control system
2.3.9.13. Diagnostics of a control system of the engine
2.3.9.14. Changes (in comparison with the previous Camry model)
2.3.9.15. Management of reliability
2.3.9.16. Compensation of failures of the sensor of provision of a pedal of management of fuel supply
2.3.9.17. Compensation of failures of the sensor of provision of a butterfly valve
2.4. Mechanical part of the engine of model 1MZ-FE
2.5. Appendix
2.6. Tables
3. Transmission
4. Running gear
5. Steering
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment




80e768f8

2-3-9-10-upravlyayushhijj-klapan-vpuska-zakryt-vsv-vklyuchen.html

2.3.9.10. The operating valve of an admission is closed (VSV is included)

Fig. 2.215. The scheme of operation of the operating admission valve in situation "is closed"


The electronic control unit of the engine activates VSV for increase in duration of a cycle of a pulsation, at the same time vacuum affects a diaphragm of the executive mechanism. The operating valve is closed. As a result the effective length of an inlet collector increases, and efficiency of an admission in the range of low and average turns improves owing to influence of dynamics of an air stream on an admission, thus increasing engine capacity.


"previous page
2.3.9.9. Vacuum tank
following page"
2.3.9.11. The operating valve of an admission is open (VSV is switched off)