Dynamic Steering
The dynamic steering is designed not only to steer handy, because it fulfills important requirements for safety and dynamics. So a correction of a driving failuregewell is therefore not only possible via braking by ESP,
but also by steering with less effect on the dynamics.
| Strain Wave Gear: Drive 100 teeth, driven 102 teeth |
The electric motor is connected to the inner grey oval wave generator. The ball bearing ensures smooth running of the red flex spline with thin walls so that it can adapt to the oval shape respectively. It is directly
connected to the steering wheel and by teeth to the grey round circular spline giving movement further to the steering gear
| Heart Oval (grey) causes circumferential deformation (red). |
Without engaging the electric motor the inner wave generator remains as according to the left figure. Top and bottom ensure the external teeth of the red wave generator and the inner teeth of the grey circular spline for
a stable transfer 1:1. Only when the inner grey wave generator is rotated by the electric motor and the red flex spline entrains by its oval shape, there is a rotation between the steering wheel and the input shaft to the
steering gear.
| E-motor: per impulse a sixth revolution |
Imagine, you place two racks with their teeth and matching tooth spaces together. This is perfect for the same tooth shapes and tooth numbers of the two. If one of them has the same length and one tooth less, you
can try putting them together from one end to the other. The rack with more teeth will be shifted by one tooth.
| 25 revolutions electric motor yield about 90° steering offset. |
In case of faults the peripheral deformation by a spring loaded solenoid is blocked. 02/16
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