APAX has developed a new suspension technology for its leanable 3-wheeled HPV. During the early development stage, conventional suspension resulted in an unacceptably low riding height. Very few riders were willing to adopt this vulnerable position, particularly in traffic. Therefore, a new suspension solution was required.
There are many ways to implement a suspension system for a narrow, leanable, 3-wheeled HPV (cables, levers, etc.). APAX selected hydro-pneumatic as the most compact and high-performance technique. The HPV also required a lockable suspension, so that riders could remain upright at a stop. This allowed rider convenience, and enabled them to use their feet to pump up the propulsion system on certain models. A hydro-pneumatic suspension strut with an internal locking mechanism was patented to provide this functionality.
Prototype vehicles have been built and tested, and they demonstrate the desired performance. The 2-wheel independent rear suspension also provides a phenomenally smooth and supple ride. These prototypes glide over curbs and down staircases. They float over gravel roads and wilderness trails like an air-cushion vehicle.
This technology can be used in a number of other applications:
The patented APAX suspension technology is highly versatile and scalable. It provides an exceptionally smooth ride, and a great deal of controllability.
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