# Triple-hybrid

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Triple-hybrid
> Markdown URL: https://mediated.wiki/source/Triple-hybrid.md
> Source: https://en.wikipedia.org/wiki/Triple-hybrid
> Source revision: 1320839262
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Triple-hybrid" – news · newspapers · books · scholar · JSTOR (May 2021) (Learn how and when to remove this message)

The topic of this article may not meet Wikipedia's general notability guideline. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted. Find sources: "Triple-hybrid" – news · newspapers · books · scholar · JSTOR (November 2025) (Learn how and when to remove this message)

**Triple-hybrid** is a registered trademark (German Trademark DE 307 68 078, European Community trademark application CTM 010704237) of the [German company](/source/German_company) Proton Motor Fuel Cell GmbH which is used to designate a special drive system that has been developed and patented by Proton Motor Fuel Cell GmbH (European Patent EP 1 868 837 B1). Other than conventional [hybrid](/source/Hybrid_vehicle) drive systems comprising only two sources of energy, namely a combustion engine and an electric motor, Proton Motor Fuel Cell's **Triple-hybrid** drive system comprises three sources of energy, namely [hydrogen](/source/Hydrogen) [fuel cells](/source/Fuel_Cell), [batteries](/source/Battery_(electricity)), and [ultracapacitors](/source/Ultracapacitor) to power, store and capture energy during [braking](/source/Brake) of vehicle.

## Main Components

In the special drive system developed by the captioned [joint-venture](/source/Joint_venture) project, the basic power source is a liquid-cooled [proton exchange membrane fuel cell](/source/Proton_exchange_membrane_fuel_cell) (Proton’s “PM Basic A 50” fuel-cell system). Lead-gel [batteries](/source/Battery_(electricity)) and [ultracapacitors](/source/Ultracapacitor) are the additional power sources.

## Modes of Operation

Like other [fuel cell](/source/Fuel_Cell) powered vehicle, the [proton exchange membrane fuel cell](/source/Proton_exchange_membrane_fuel_cell) in this drive system uses [hydrogen](/source/Hydrogen) to produce electric power to [motor](/source/Electric_motor). When the vehicle is stationary, the [proton exchange membrane fuel cell](/source/Proton_exchange_membrane_fuel_cell) recharges both the lead-gel [batteries](/source/Battery_(electricity)) and the [ultracapacitors](/source/Ultracapacitor).

During peak energy requirements the lead-gel [batteries](/source/Battery_(electricity)) and [ultracapacitors](/source/Ultracapacitor) provide additional electric power, in parallel to the [proton exchange membrane fuel cell](/source/Proton_exchange_membrane_fuel_cell), to the [motor](/source/Electric_motor).

During [braking](/source/Brake), energy, the [regenerative braking](/source/Regenerative_brake) energy, is captured in the lead-gel [batteries](/source/Battery_(electricity)) and the [ultracapacitors](/source/Ultracapacitor).

## References

## External links

- [First 'triple-hybrid' fuel-cell bus goes into service](http://www.sae.org/mags/TBE/6474), Society of Automotive Engineers, retrieved on 10-06-2009

- [Proton Motor, Skoda Electric, UJV Collaborate on Fuel Cell Bus](http://www.hybridmile.com/news/proton-motor-skoda/), HybridMile.com, 21-05-2009, Retrieved on 10-06-2009

- [Proton Motor Fuel Cell GmbH](http://www.proton-motor.de/)

---
Adapted from the Wikipedia article [Triple-hybrid](https://en.wikipedia.org/wiki/Triple-hybrid) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Triple-hybrid?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.