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  2. Variable force solenoid - Wikipedia

    en.wikipedia.org/wiki/Variable_force_solenoid

    A variable force solenoid (VFS) is an electro-hydraulic device that controls pressure proportionally or inversely proportionally to a signal (voltage or current) obtained from the on-board controller of a powertrain. A low flow VFS is used as a signal level devices for transmission line pressure control or application of clutches.

  3. Solenoid (engineering) - Wikipedia

    en.wikipedia.org/wiki/Solenoid_(engineering)

    The solenoid can be useful for positioning, stopping mid-stroke, or for low velocity actuation; especially in a closed loop control system. A uni-directional solenoid would actuate against an opposing force or a dual solenoid system would be self cycling. The proportional concept is more fully described in SAE publication 860759 (1986).

  4. Category:Automotive transmission technologies - Wikipedia

    en.wikipedia.org/wiki/Category:Automotive...

    Variable force solenoid; Variomatic; Voith DIWA; Volkswagen 01M transmission This page was last edited on 6 February 2022, at 03:55 (UTC). Text is available under ...

  5. Solenoid - Wikipedia

    en.wikipedia.org/wiki/Solenoid

    This equation is valid for a solenoid in free space, which means the permeability of the magnetic path is the same as permeability of free space, μ 0. If the solenoid is immersed in a material with relative permeability μ r, then the field is increased by that amount: =.

  6. Transmission solenoid - Wikipedia

    en.wikipedia.org/wiki/Transmission_solenoid

    A transmission solenoid or cylinoid is an electro-hydraulic valve that controls fluid flow into and throughout an automatic transmission. Solenoids can be normally open or normally closed. They operate via a voltage or current supplied by the transmission computer or controller.

  7. Solenoid valve - Wikipedia

    en.wikipedia.org/wiki/Solenoid_valve

    A small solenoid can generate a limited force. An approximate relationship between the required solenoid force F s, the fluid pressure P, and the orifice area A for a direct acting solenoid valve is: [3] = = where d is the orifice diameter. A typical solenoid force might be 15 N (3.4 lb f).

  8. MultiAir - Wikipedia

    en.wikipedia.org/wiki/MultiAir

    The solenoid valve regulates the amount of oil pumped by the cam action to either the valve or a bypass reservoir. When pressurized, the hydraulic line behaves like a solid body and transmits the lift schedule imparted by the intake cam directly to the intake valve. When the solenoid is disengaged, a spring takes over valve actuation duties.

  9. Glossary of electrical and electronics engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_electrical_and...

    Variable resistor – a protective device that has a high resistance at low voltage but momentarily switches to lower resistance on exposure to a high voltage. vector control A strategy for control of variable-speed motor drives. vector group The classification of the connections of a polyphase transformer. vehicle-to-grid