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Kiepe Traction Control KTC

The Kiepe Traction Control KTC software was developed to optimize the drive control in electric trolleybuses and offers the following advantages:

  • Fast torque control in every operating situation.
  • Active damping of drivetrain oscillations even during passing a line-insulator with high traction torque effort (international patent).
  • Gentle driving characteristics due to highly dynamic damping of torsional drivetrain oscillations.
  • Reduction of wear on mechanical drive train components by active damping of mechanical oscillations.
  • Optimized wheel slide and slip protection.
  • Improved efficiency by using synchronous pulse patterns in the upper speed range. This increases the overall efficiency of the traction machine and traction converter.
  • Reduction of noise and energy consumption with optimized machine flux control.
  • Reduction of acoustic resonances in drivetrain and in braking resistor by optimized switching frequency modulation.
  • Optimized driving characteristics in condition of icy overhead line.
  • Reliable and stable start on very high inclines (tested on slopes up to 23 %)
  • Highest priority on electrical braking capability, even in case of the overhead line voltage failure.
  • High recuperation level and protection against consumption of the external energy.
  • Controlled acceleration and deceleration at different loads and road profiles.

Drive control features of KTC

  • Active damping of torsional oscillations in a drivetrain of electric buses (Patent pending) 
  • Very dynamic electronic ASR (inside of inverter control) 
  • Variable switching frequency (frequency band modulation) 
  • Reduction of subjective and objective acoustic noise perception 
  • Optimized system noise 
  • Special control algorithm for acceleration at very high inclines (up to 22 %) 
  • HighPriority on electrical Brake capability (until zero speed) 
  • Overmodulation with synchronous pulses (+15 % machine voltage), lower energy 
  • Energy optimized drive mode (optimal machine flux at lower torque) 
  • Acceleration Control

Traction Control Innovations - Energy-saving potential

ISR Diagram

Contact person

Our sales team is happy to answer any questions.

Our sales team is happy to answer any questions.

+49 211 74 97 - 0
info.KDUknorr-bremse.com

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