ohjasapu

Ohjasapu is a Finnish term that translates to "steering assistance" or "power steering" in English. It refers to a system in a vehicle that reduces the effort required by the driver to turn the steering wheel. This makes maneuvering the vehicle, especially at low speeds or when parking, significantly easier and more comfortable.

There are several types of ohjasapu systems. The most common is hydraulic power steering, which uses a pump driven by the engine to pressurize hydraulic fluid. This fluid is then directed to a steering gear, which amplifies the driver's input to turn the wheels. Another prevalent type is electric power steering (EPS), which uses an electric motor to provide assistance. EPS systems are increasingly popular due to their energy efficiency and ability to offer variable assistance levels depending on speed. Some vehicles also utilize electro-hydraulic power steering, which combines elements of both hydraulic and electric systems.

The implementation of ohjasapu has greatly enhanced vehicle drivability and safety. It allows for precise control and reduces driver fatigue, particularly on longer journeys or in congested urban environments. Modern ohjasapu systems can also be integrated with other vehicle safety features, such as stability control, to provide more responsive and adaptive steering characteristics. The evolution of this technology continues to focus on improving efficiency, reducing weight, and enhancing the overall driving experience.