power steering, by definition, to resist force by increasing the steering resistance, so that the driver requires less force will be able to complete the turn, also known as power steering, English as power steering, originally intended to allow some of the heavier weight large vehicle easier operation, but is now very popular, which makes driving easier and easier, and make the vehicle more agile response to improved security to some extent.
The most common type of power have mechanical hydraulic power , Electronic hydraulic power , Electric Power three.
Further Reading car – “power steering”