Serial Hybrid: Power Shift Transmissions – Single Electric Motor with Energy Storage

This serial hybrid system for power shift transmissions uses a single electric motor with energy storage. Transmission operation is managed by a state-of-the-art microprocessor.


High Voltage

Data / Command Signals

System Overview

  • Serial hybrid using electric power
  • Power regeneration through braking (vehicle)

Transmission and Controller

  • Twin Disc power shift transmissions
  • 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

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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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