Pedals


This idea is a variation of „Wheel Brake

 

Conventional pedals plus rest position for left foot
Conventional pedals plus rest position for left foot
Pressure-sensitive sensors, central bar, rest position
Pressure-sensitive sensors, central bar, rest position

Release Date

11/12/2015

Idea and Description

Kurt Andro

Brief Description, Objective

The objective is the same as "Wheel Brake"

  • Novel way of actuation of the service brake for cars, trucks, etc., which should lead to a reduction in the overall stopping distance with emergency braking
    • to avoid collisions
    • or (where a collision is unavoidable) to enable a lower collision velocity.

Benefits of "Pedals" opposite "Wheel Brake"

  • Technically significantly easier to implement
  • Easier familiarization for driver
  • Reduced risk of foot injuries in accidents
  • Probably much easiler approvable as "Wheel Brake"

Problem

In an emergency stop you lose valuable time by taking the foot from the accelerator and put it on the brake pedal, which leads to an unnecessarily long stopping distance.

In addition, there is a danger that the driver in the hustle and bustle of an emergency (shock) catches their foot behind the brake pedal and so there is no braking at all.

Solution

Conventional designed pedals are completely eliminated. In their place, a tread surface is used, which is interrupted of a slight elevation (center bar) in the middle.

  • To the right of this elevation, there are two smaller areas, each equipped with pressure sensitive sensors (eg piezoelectric elements). Depending on how much you step on it, a more or less strong electric current is sent to a control unit, which ensures by means of suitable actuators for the corresponding acceleration or deceleration.
  • To the left of the central elevation the pressure on the clutch surface is detected and reacted in the same way.
  • On the extreme left there is, as usual, a passive surface which serves the left foot as a rest position.

In an emergency, the right foot can be put to the left to the brake surface at lightning speed. More secure and much faster than with conventional pedals, since the leg must not be drawn back first.

  • The elevation is used to stop the side movement of the foot
  • Unlike conventional pedals there is no risk of getting stuck behind the brake pedal

References

Under "Wheel Brake" you will find more information on the piezoelectric films, implementation, testing, control logic, redundancy and links to other websites.