Introduced sedan Series 7 BMW Active wheel steering or active the first time in a power steering course which helps the driver to the steering wheel can rotate more easily. However, the active steering is not it. Active steering even more powerful. When parking, drivers do not
difficult
turned the wheel until a couple of times to get a big turn angle.
For example, when parking, so that the front wheel to make the maximum bend angle, 32 degrees (low), the car without active steering, the steering ratio, 20: 1, circle the wheel must be rotated 640 degrees, or almost two laps. Driver trouble enough!
Well, compare with the active steering wheel that is used by BMW.
For maximum inflection point of maximum wheel, 32 degrees, the driver simply rotate 320 degrees or less than a lap. This is very helpful, especially on the street corners of many narrow or broken.
Comparison or ratio active steering wheel at BMW is always changing according to the speed of the car. The higher the speed, to turn the wheel slightly, the wheel must be rotated much more. At the speed of 60 km / hour, for example, so that the front wheels can turn 32-degree angle, the steering wheel must be rotated 406 degrees. More than a lap or a comparison to 12.6!
Furthermore, when the car drove at a speed of 120-140 km / hour, the driver must turn the wheel 520 degrees to the front wheels turn 32 degrees. Or comparison to 16.25. This is called the active condition! The latter condition is not possible and only a picture. Because, at high speeds is not possible to make the corner turn out. At most 8 degrees. But the driver turned the wheel to 130 degrees!
Increasingly large, comparative figures in high-speed steering aims to gain a comfort level is higher. Because, at high speed, the car is more sensitive to the influence of the movement. The slightest move the steering wheel, the car changed. In this way BMW does this, to get a small bend angle, wheel rotation required is greater.
Mechanism
The heart of the active steering system is a set of gear teeth on the planet who united steering column. Used to move the steering wheel electric motors mounted on the steering mechanism. This is where the power system. When receiving a signal cycle is driven by the driver's steering wheel, a direct system works, ruled an electric motor steering mechanisms which enable the wheels through membelokan planetary gears.
Active steering is also used to correct the direction of the car. For example if there is a phenomenon oversteering or braked on surfaces that could change, DSC (dynamic stability control) will identify the problem. Active wheel steering reduces the movement!
BMW claims, active steering response more rapidly than the ability of a highly experienced driver. One more thing, when there is disruption electronic systems, steering mechanisms can still be controlled by the driver or called security system. Meanwhile, to get "feel" the car remained in use, the choice is a brand steering system (rack) and pinion steering, the same used cars in general today!
difficult
turned the wheel until a couple of times to get a big turn angle.For example, when parking, so that the front wheel to make the maximum bend angle, 32 degrees (low), the car without active steering, the steering ratio, 20: 1, circle the wheel must be rotated 640 degrees, or almost two laps. Driver trouble enough!
Well, compare with the active steering wheel that is used by BMW.
For maximum inflection point of maximum wheel, 32 degrees, the driver simply rotate 320 degrees or less than a lap. This is very helpful, especially on the street corners of many narrow or broken.Comparison or ratio active steering wheel at BMW is always changing according to the speed of the car. The higher the speed, to turn the wheel slightly, the wheel must be rotated much more. At the speed of 60 km / hour, for example, so that the front wheels can turn 32-degree angle, the steering wheel must be rotated 406 degrees. More than a lap or a comparison to 12.6!
Furthermore, when the car drove at a speed of 120-140 km / hour, the driver must turn the wheel 520 degrees to the front wheels turn 32 degrees. Or comparison to 16.25. This is called the active condition! The latter condition is not possible and only a picture. Because, at high speeds is not possible to make the corner turn out. At most 8 degrees. But the driver turned the wheel to 130 degrees!
Increasingly large, comparative figures in high-speed steering aims to gain a comfort level is higher. Because, at high speed, the car is more sensitive to the influence of the movement. The slightest move the steering wheel, the car changed. In this way BMW does this, to get a small bend angle, wheel rotation required is greater.
Mechanism
The heart of the active steering system is a set of gear teeth on the planet who united steering column. Used to move the steering wheel electric motors mounted on the steering mechanism. This is where the power system. When receiving a signal cycle is driven by the driver's steering wheel, a direct system works, ruled an electric motor steering mechanisms which enable the wheels through membelokan planetary gears.
Active steering is also used to correct the direction of the car. For example if there is a phenomenon oversteering or braked on surfaces that could change, DSC (dynamic stability control) will identify the problem. Active wheel steering reduces the movement!
BMW claims, active steering response more rapidly than the ability of a highly experienced driver. One more thing, when there is disruption electronic systems, steering mechanisms can still be controlled by the driver or called security system. Meanwhile, to get "feel" the car remained in use, the choice is a brand steering system (rack) and pinion steering, the same used cars in general today!
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