A vehicle includes a frame including a lower frame portion made from a first material and an upper frame portion made from a second material different from the first material, a center of gravity of the upper frame portion being above a center of gravity of the lower frame portion, at least one front suspension system connected to the lower frame portion, at least one front ground engaging member connected to the front suspension systems, at least one rear suspension system connected to the lower frame portion, at least one rear ground engaging member operatively connected to the rear suspension system, a power pack connected to and supported by the lower frame portion, a seat connected to and supported by at least one of the upper frame portion and the lower frame portion, and at least one body panel connected to and supported by the upper frame portion.

A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

Tri-Power Exercising device allows a rider to simultaneously, or on demand, exercise virtually all muscle groups in his lower and upper body. The device includes a bicycle frame, pedals, forearm bars, sliding seat, computer and electronic display recommending energy modulation amounts from various muscle groups to optimize physical performance on any given trek. Because riders can exercise virtually all muscle groups at once, they reduce their exercising time, continuously builds muscle tissue throughout their whole body, and exercises their cardiovascular and respiratory systems completely. Riders operate the device by rotating legs on the pedals, rotationally oscillating the forearm bars up and down with their arms and shoulders, and then use core muscles to pull and push the seat back and forth on the slider. Inverted racks, pinion gears, and one-way bearings turn this linear power from the oscillating forearm bars and sliding seat into torque that rotates the crank axle.

Tri-Power Exercising device allows a rider to simultaneously, or on demand, exercise virtually all muscle groups in his lower and upper body. The device includes a bicycle frame, pedals, forearm bars, sliding seat, computer and electronic display recommending energy modulation amounts from various muscle groups to optimize physical performance on any given trek. Because riders can exercise virtually all muscle groups at once, they reduce their exercising time, continuously builds muscle tissue throughout their whole body, and exercises their cardiovascular and respiratory systems completely. Riders operate the device by rotating legs on the pedals, rotationally oscillating the forearm bars up and down with their arms and shoulders, and then use core muscles to pull and push the seat back and forth on the slider. Inverted racks, pinion gears, and one-way bearings turn this linear power from the oscillating forearm bars and sliding seat into torque that rotates the crank axle.

The invention relates to a drive system for a vehicle, having a drive or electromotor, a crankshaft and a transmission, in particular a hub transmission. It is provided according to the invention that the transmission (10) is arranged in the central region of the vehicle, in particular the region of the crankshaft (1) and in particular is integrated and the crankshaft rotational speed is transmitted.

The invention relates to a drive system for a vehicle, having a drive or electromotor, a crankshaft and a transmission, in particular a hub transmission. It is provided according to the invention that the transmission (10) is arranged in the central region of the vehicle, in particular the region of the crankshaft (1) and in particular is integrated and the crankshaft rotational speed is transmitted.

A drive assembly for a human-powered machine may include a front crankset spaced from a rear crankset, each rotatably coupled to a frame. Crank arms of the rear crankset are longer than crank arms of the front crankset. A left foot platform and a right foot platform each have a rear portion rotatably coupled to a distal end portion of the corresponding rear crank arm, and a front portion in sliding and rotating engagement with a distal end portion of the corresponding front crank arm. The front crankset and the rear crankset may be mechanically coupled to each other, such that the two cranksets turn together at the same rotational speed in terms of RPM. The two cranksets may also be operatively connected to the hub of a wheel.

An electrically assisted bicycle includes a crank shaft, pedals, an electric motor, a pedal effort sensor that detects a pedal effort exerted on the pedals, a propelling detection sensor that detects that the electrically assisted bicycle is starting to be propelled, and a controller that executes a first control in which a command value provided to the electric motor is obtained based on the output of the pedal effort sensor and a second control in which a command value provided to the electric motor is obtained based on the output of the pedal effort sensor and the output of the propelling detection sensor. The controller is configured or programmed to select the first control or the second control as a calculation method of a command value provided to the electric motor during a period of time from a state in which the electrically assisted bicycle is stopped until a detection of the rotation of the crank shaft.

An electrically assisted bicycle includes a crank shaft, pedals, an electric motor, a pedal effort sensor that detects a pedal effort exerted on the pedals, a propelling detection sensor that detects that the electrically assisted bicycle is starting to be propelled, and a controller that executes a first control in which a command value provided to the electric motor is obtained based on the output of the pedal effort sensor and a second control in which a command value provided to the electric motor is obtained based on the output of the pedal effort sensor and the output of the propelling detection sensor. The controller is configured or programmed to select the first control or the second control as a calculation method of a command value provided to the electric motor during a period of time from a state in which the electrically assisted bicycle is stopped until a detection of the rotation of the crank shaft.

A cycle (10) having a drive mechanism (20) comprising input and output assemblies (22, 24), and a transmission system functionally connecting therebetween for transmitting motion from the input to the output assembly is disclosed. The input assembly (22) defines a drive axis (32) via which an input force is provided, and first and second drive points (30) spaced from the drive axis (32), and is configured to harness the input force to produce an angular motion of the drive points about the drive axis (32). The output assembly (24) defines a wheel axis (38) and first and second wheel points (36A, 36B) spaced therefrom, and is configured for being driven by the angular motion of the drive points to rotate the wheel points (36A, 36B) about the wheel axis (38). The transmission system comprises first and second transmission members (40A, 40B) pivotally articulated, at first ends, with respect to the first and second drive points and, at second ends, with respect to the first and second wheel points (36A, 36B).