Abstract: A system that stiffens the rear suspension of the three-wheeled vehicle in coordination with the operator turning the front wheel to prevent leaning in turns and thus improve handling, performance and safety. The suspension system is controlled by the suspension control computer that receives input from a variety of sensors including a sensor in the steering neck that measures the angular rotation as the handlebars are turned by the operator. Based on these inputs, using proprietary programming, the suspension control computer calculates the timing, degree and appropriate side rear shock absorbing unit to stiffen. Active suspension offers significant advantages over non-active independent rear suspension in that it minimizes adverse handling characteristics caused by suspension leaning in turns while still allowing the comfort and handling of an independent rear suspension, as opposed to a non-independent rear suspension which provides a poor quality ride.

Abstract: A system that steers the rear wheels of the three wheeled vehicle in coordination with the operator turning the front wheel that improves handling, performance and safety. The rear wheels are steered by a rear end mounted powered steering rack that is controlled by a steering control computer that receives input from a variety of sensors including a sensor for vehicle speed and a sensor in the steering neck that measures the angular rotation of the handlebars as they are turned by the operator. Based on these inputs, using proprietary programming the steering control computer calculates the rate, timing and direction to turn the rear wheels. Rear steering offers advantages over front wheel only steering including being easier for the operator to turn the vehicle, a smaller turning radius, better straight line stability, better high speed handling, improved corning performance, improved steering response and improved safety.

Abstract: A traction control system for two and three wheeled motorcycles that prevents or limits the rear wheel(s) from slipping when the operator accelerates the vehicle. If the torque supplied by the motor exceeds the tractive force developed between the rear tire(s) and the road surface the rear tire(s) will slip creating a dangerous condition. The operator engages the system and selects the degree of desired traction control. The system detects rear (driven) and front (non-driven) wheel rotational speeds. If the rear wheel(s) begins rotating faster than the front wheel(s) the traction control computer will send a signal to the motor control unit to reduce the motor's power output. Additionally, as the operator applies the throttle the traction control computer sends a signal is sent to the rear suspension to stiffen for the purpose of more efficiently transmitting power to the rear wheel(s) and road surface.