Serial Hybrid: Power Shift Transmissions – Dual Electric Motor with Energy Storage & Generator Power

This serial hybrid system for power shift transmissions uses electric motors and can both generate power and store energy. Transmission operation is managed by a state-of-the-art microprocessor.


High Voltage

Data / Command Signals

System Overview

  • Serial hybrid using energy storage and generator
  • Vehicle drive train uses power from diesel and electric sources; auxiliaries are diesel-driven
  • Power regeneration through braking (vehicle)

Transmission and Controller

  • Mechanical interface to direct mount e-motor/generator to pump drive pads
  • State-of-the-art microprocessor control manages transmission operation

Hybrid Controller

  • Manages power distribution, interfacing with power shift transmission 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


  • Not supplied by Twin Disc

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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