Parallel Hybrid: Creep Drive with Energy Storage

With this parallel hybrid system, the vehicle is driven mechanically; the primary power source is a diesel engine.


High Voltage

Data / Command Signals

System Overview

  • Parallel hybrid using diesel and electric power
  • Electric power boosts diesel power in high demand periods or is used independently during low-demand periods (e.g. creep mode)
  • During low-power operation, the e-motor can use excess diesel power to generate electricity
  • Power regeneration is possible through vehicle braking

Transfer Case

  • Mechanical interface to direct mount e-motor/generator to input

Hybrid Controller

  • Manages power distribution, interfacing with customer’s vehicle/machine controller and high voltage equipment


  • Selection based on application characteristics (torque, installation)

Inverter, High Voltage Equipment

  • Controlled and monitored by hybrid controller

Energy Storage & BMS

  • Selection based on application characteristics

Profitable. Sustainable. Powerful.

These innovative hybrid and electric systems support greener power transmission while delivering the reliability you expect from Twin Disc. Explore some of Twin Disc’s hybrid and electrification options, then contact our team of experts to learn about the endless custom solutions available to create the optimal system. With more than a hundred years of experience in the design of innovative power transmission products, Twin Disc understands your needs and delivers the solutions that earn your confidence.

Land-Based / Off-Highway / Mobile Equipment

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Twin Disc specialists are available to work with your technical experts to select the optimal configuration and components for your specific application.

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