top of page

This is how we do it

From prototype to series -
we cover the entire development process

Functional Prototype

The 4QT technology comprises both physical components that are embedded into the vehicle as well as software that controls the operating modes. This functional prototype gives a glimpse of the inside of the "Magic Box" – the physical parts of the 4QT.

 White Paper

Please find out more about why the PARIS HYBRID Drivetrain technology has the potential of becoming the new industry standard for Accelerating the Decarbonization of Commercial Vehicles in the white paper below

How it works

4QT combines the design advantages of electric motors with the economics and time proven reliability of traditional engines. 

4 Quadrant transmission describes the operating capabilities of an ideal gearbox. It can inject and recuperate energy at just the right time so that mobility becomes both efficient and low emissions.
4QT works like an automatic gearbox. The optimal gear ratio is calculated by an onboard computer, based on the input from the driver.

Local emission targets can be adapted to on-the-fly. While excess and recuperated energy is stored in the battery so that it can be used later on in the journey.

Monitoring CO2 Reduction
and Energy Flow

The 4QT solution offers CO2 reduction monitoring and has a range of different operating modes to switch between. Depending on the situation, the 4QT always activates the appropriate mode to optimally use, generate or store the energy. The animation below shows the different modes Work Mode, Zero Emission Mode, Charge Mode, and Boost Mode.

Curious what we do?
Learn more about what projects we have done.

bottom of page