How to adjust the direction of Nissan's new converse electronic power if there is a virtual position?

Hello, this is the virtual position of the steering wheel, also called slack. All cars have the virtual position of the steering wheel, but the adjustment is different. Generally, the steering wheel of Japanese cars and Korean cars is empty. German and American systems are very small, which directly affects the handling of a car. The virtual position exists in all vehicles, which is designed during vehicle design and determined by adjustment. Passat's vacancy is already very small. Why do German and American cars have a particularly good steering feel, special spirit, very accurate steering and good directivity, that is to say, this virtual position can be within the control range of the vehicle, while Japanese and Korean cars generally have a large virtual position of the steering wheel, and the front end of the steering wheel always keeps the same direction when the steering wheel rotates greatly? This has caused some cars to have blurred steering and poor directionality. All cars must leave space to avoid accidents, rollover and out of control when driving at high speed. Think about it. If there is no room on the steering wheel at all, the wheels will react if they move a little. First of all, driving will be very tiring. You need to hold the steering wheel very carefully. If you move the car a little, you may deviate from your current lane. In one case, if the road is uneven, there are pits and bumps, and you will hit the steering wheel.