Technology

This bevel differential gearset changes everything.

Driven builds on the last 20 years of hybrid vehicle innovations by putting a differential gearset at the mid-drive of an e-bike. This differential allows for two inputs (a rider and electric power), to combine into one output that drives the back wheel.

Gearing

Continuously variable, adjusting to rider input, providing more power when needed to maintain speed. This gearing can also be manually adjusted, mimicking the feel of traditional gears on a bicycle.

Motors

Two small motors, one for controlling the output gear ratio and a second for providing pedal assist. The assist motor can produce up to 90 Nm of torque when needed.

Power-to-wheel

Available in three configurations, our drive system can deliver power to the rear wheel through a direct drive (shaft) with a signature cog at the back wheel, a chain that leads to a single back-wheel cog, or a belt. These power delivery mechanisms can be partially or totally enclosed. 

Enclosure

All components are sealed and enclosed in a cast housing that attaches to the frame of the bike using a simple bolt pattern. Existing bolt patterns of motor-only drives (eg Bosch, Shimano, Yamaha) can be used. 

Rider Features

• Pedal assist e-bike.  
• Stepless variable transmission OR stepped transmission via software.   
• No more greasy chains.  
• A sleek and modern look as opposed to chains and belts.  
• Lighter weight than most of the cobbled-together drive systems on the market. 
• Near zero-maintenance for 10,000 miles (whoa!).  
• Durable – no derailleurs to damage, no chains to lubricate.  
• Up to 20% more battery range than existing e-bikes.  
• No exposed parts.  
• More aerodynamic than current drive systems.

Added Features for e-bike Manufacturers.

• Aggressive price point at wholesale.
• No more cobbling together a gearset, motors, and power-to-wheel components. Driven is a complete solution.
• Built-to-order. Driven can accommodate most bolt patterns for existing frames.
• Fewer parts. Driven’s bevel differential gearsets have half the number of parts of discrete gearing solutions.
• Our torque and cadence sensing is built into the motor controls (patented) – so bring your own user interface or use any off-the-shelf solution.
• Maintenance costs are a fraction of current costs.

Robust Patent Portfolio

Awarded Patents:

1. Gear comprised of bearings (instead of teeth) that is multispeed
2. Shifting mechanism within a shaft drive that uses a torque de-coupler

Provisional Patents:

(researched and written via Kilpatrick Townsend LLP – high probability of being awarded ):

1. The use of motor control logic algorithms to replace torque and cadence sensors.
2. A roller that is not constrained (floating) is pinched between two
   opposing gear teeth (limited to bicycles)
3. Variable, bevel planetary gear for electronic-assist drivetrain systems in mobility (‘Intent to Grant’ letter received from first European patent office)