Double pedal system for an industrial truck
A double pedal system for an industrial truck, comprising a first spring-reset pedal, a second spring-reset pedal. The first and the second spring-reset pedals are provided so as to be mechanically independent of one another, and are each provided with a device for electronically capturing the current actuation path of the corresponding pedal. A control unit is operatively coupled to the devices for electronically capturing the actuation paths of the two pedals, and is designed to determine a travel target value from the current actuation paths of the two pedals. The invention furthermore relates to an industrial truck comprising a double pedal system of this kind, and to a method for operating the double pedal system.
1. A method for operating a double pedal system of an industrial truck, the double pedal system comprising a first spring-reset pedal and a second spring-reset pedal, the method comprising the steps of:
capturing a current actuation path of the first spring-reset pedal;
capturing a current actuation path of the second spring-reset pedal; and
determining a travel target value from the current actuation path of the first spring-reset pedal and the current actuation path of the second spring-reset pedal, wherein determining the travel target value comprises calculating a difference between the current actuation path of the first spring-reset pedal and the current actuation path of the second spring-reset pedal and scaling the calculated difference with respect to a maximally available drive power of the industrial truck.
2. The method of claim 1 , wherein the determination of the travel target value comprises determining a travel target direction.
3. The method of claim 1 , wherein a first optical sensor is used for capturing the current actuation path of the first spring-reset pedal; and
a second optical sensor is used for capturing the current actuation path of the second spring-reset pedal.
4. The method of claim 1 , wherein a first rotary potentiometer is used for capturing the current actuation path of the first spring-reset pedal; and
a second rotary potentiometer is used for capturing the current actuation path of the second spring-reset pedal.
5. The method of claim 1 , wherein determining the travel target value comprises calculating a difference between the current actuation path of the first spring-reset pedal and the current actuation path of the second spring-reset pedal.
6. The method of claim 2 , wherein the travel target direction is determined based on the current actuation path of the first spring-reset pedal and the current actuation path of the second spring-reset pedal.
7. The method of claim 1 , further comprising ordering a process for reducing a speed value of the industrial truck in an event of both the first spring-reset pedal and the second spring-reset pedal being deflected simultaneously.
8. The method of claim 1 , wherein the first spring-reset pedal is provided on a right-hand side with respect to a longitudinal central axis of a driver's seat of the industrial truck, and the second spring-reset pedal is provided on a left-hand side with respect to the longitudinal central axis of the driver's seat.
9. The method of claim 8 , wherein the first spring-reset pedal and the second spring-reset pedal are each arranged obliquely with respect to the longitudinal central axis of the driver's seat, such that the first spring-reset pedal and the second spring-reset pedal each extends away from the longitudinal central axis, in a direction away from the driver's seat.
10. The method of claim 1 , further comprising, in an event of both the first spring-reset pedal and the second spring-reset pedal being deflected simultaneously, actuating a device for inductive braking.