dynamic steering system is a technical steering system called Audi used mdash; mdash; Audi DynAMIc Steering, In principle still apply the principle of superposition, but the use of the structure, but with BMW and Toyota’s system has a big difference , the core member is set to a harmonic gear mechanism is a core of the electrical control system. For all ldquo; harmonic gear rdquo; may all be unfamiliar concept, it is the use of the flexspline, and the relative movement of the wheel just wave generator, in particular a controlled elastic deformation (shape change) of the flexspline to effect movement and power transmission (defined from the network).
“dynamic steering system -Audi DynAMIc Steering structure map”
principle to change the steering ratio is wrong tooth harmonic movement of traditional systems. An input shaft attached to a steering wheel with a flexspline (thin ring gear) is connected to a flexible inner ball, ellipse center rotor motor drive, the output shaft is spline connected to the outer surface configuration, the rotor is locked when the stopper (the motor is not energized or fails), the steering ratio of the steering system remains constant. A motor driven central rotor while rotating, will lead to rotation of the flexspline, and the rotor when the flexspline co-rotating, since the teeth of the flexspline is smaller than the number of teeth of the outer spline, the angle of rotation of the wheel will be just greater than the flexspline, the steering angle is enlarged, and when the rotor is reversed, it is possible to reduce the steering angle acts.
compared to the planetary gear system, harmonic gear Audi dynamic steering system of the transmission structure has many advantages, the first is a relatively simple structure, not too complicated gear structure , small number of parts for easy maintenance. Second, this structure is high load carrying capacity, not squeamish, transmission ratio; the same time, its smooth operation, low noise, this value for quiet luxury model is very suitable; In addition, the structure of high transmission efficiency, and fast response and high precision operation.
Further Reading “mystery (2) of the steering wheel: Detailed steering system variable”