Voimanohjausjärjestelmä

Voimanohjausjärjestelmä is a Finnish term that translates to "power steering system." It refers to the mechanical or hydraulic system that assists the driver in steering a vehicle, reducing the effort required to turn the wheels. This assistance makes it easier to maneuver the vehicle, especially at low speeds or when parking.

There are two primary types of power steering systems: hydraulic and electric. Hydraulic systems use a pump driven by the engine to circulate hydraulic fluid, which then pressurizes a steering rack or gearbox. This pressurized fluid pushes on internal components, providing the steering assistance. Electric power steering (EPS) systems, on the other hand, use an electric motor to provide the assistance. An electronic control unit (ECU) monitors steering input and vehicle speed, and the motor provides the appropriate level of support.

The benefits of power steering include improved driver comfort and reduced fatigue, as well as enhanced maneuverability and safety. Modern vehicles are increasingly equipped with EPS due to its energy efficiency and ability to provide variable assistance based on driving conditions. This allows for lighter steering at low speeds and firmer steering at higher speeds for better stability.