Showing papers on "Drive wheel published in 2003"

Regenerative braking system for an electric vehicle

Abstract: A regenerative braking system for an electric vehicle having front and rear wheels, and includes a drive wheel, an actuating device, a regenerative braking control circuit (64)includes a potentiometer or transducer (40) a process sensor (66), and a microprocessor (118). The system applies a regenerative braking torque to the drive wheel when the rider commands regenerative braking, and the process sensors (66) signal a drive wheel velocity greater than zero. The present invention also relates to a throttle (22) for actuating regenerative braking and reversing feature.

Device for controlled delivery of an injectable liquid

Abstract: A device for the controlled delivery of an injectable liquid from a liquid container, wherein a flexible force transferring means transfers the drive force of a drive wheel onto a piston which can be slid axially in the device, a preferably permanently acting restoring force of a spiral spring is applied to the drive wheel in order to advance the piston and expel the liquid, and a locking means locks the drive wheel against rotation and releases the drive wheel to expel the liquid. In one embodiment, the amount of liquid expelled can be indicated by audible clicks and, in one embodiment, the drive wheel moves only incrementally when the locking mechanism releases the drive wheel.

High performance tightener

Abstract: A self-blocking seat-belt retractor comprising a housing (10), at least one locking device (23) for the seat-belt shaft (12),consisting of a locking means (25) which can be controlled in a vehicle-sensitive and/or seat-belt-sensitive manner and which engages in a locking toothed gearing system on the side of the housing, also comprising a tightening device which acts upon the belt shaft (12) and consists of a drive wheel (13) which is placed in a rotating position by a drive device (51), said drive wheel being able to be coupled to the belt shaft (12) when the tightening device is released. The invention is characterised in that the drive wheel (13) of the tightening device can be connected to the belt shaft (12) in a force-transmitting manner by the locking device (23) for the belt shaft (12).

Rear wheel drive power wheelchair with ground-contacting anti-tip wheels

Abstract: A curb-climbing rear wheel drive power wheelchair is disclosed having a pair of drive wheels, at least one ground-engaging idler wheel connected to the frame forward of the drive wheels and at least one ground-contacting anti-tip caster wheel mounted to the wheelchair aft of the drive wheels. The drive wheels and anti-tip caster wheels are mounted on common suspension arms, pivoted to the frame of the wheelchair behind the drive wheels and resiliently suspended, so that the anti-tip caster wheels move up and down in response to movements of the drive wheel suspension.

Stationary exercise cycle

Abstract: An improved stationary exercise cycle comprised of a handlebar and a saddle respectively installed at two extremities of a swing rod, a base support rod to which the anterior extremity of the swing rod is hinged, a push arm extending downward from the posterior extremity of the swing rod, and a guide wheel disposed at the lower end of the push arm that contacts a polygonal drive wheel over the axle of the bottom bracket shell on the base. When a person treadles the pedals and thereby rotates the polygonal drive wheel, the guide wheel contacts the polygonal drive wheel and the support rod on the base serves as a fulcrum on which the swing rod pivots upward and downward in a seesaw fashion, with the handlebar and the saddle at the two extremities of the swing rod alternately rising and falling such that the user not only strengthens both legs, but also invigorates the arms and entire body, thereby providing for a massage-like yet effective and comprehensive physical exercise routine.

Hybrid drive assembly for a vehicle, in particular a scooter

Abstract: A hybrid drive assembly (1) for a vehicle having at least one drive wheel (2),the drive assembly including an internal combustion engine (3); a transmission unit (5) interposed between a drive shaft (4) of the internal combustion engine (3) and a propeller shaft (6) connected angularly to the drive wheel (2), and in turn including a continuously variable transmission (7) having a drive pulley (10) connected angularly to the drive shaft (4) and a driven pulley (11), and a centrifugal clutch (8) having a hub (20) connected to the driven pulley, and a driven bell (26) connected to the propeller shaft (6); and an electric machine (32) having a rotor (35) integral with the bell (26) of the centrifugal clutch (8) . The drive assembly (1) is controlled by a control unit (38), in response to a number of input signals (Ss, Sa, Sf), in a number of operating modes including an all-combustion propulsion mode, an all-electric propulsion mode, a first hybrid propulsion mode wherein the internal combustion engine (3) and the electric machine (32) are connected in series, and a second hybrid propulsion mode wherein the internal combustion engine (3) and the electric machine (32) are connected in parallel.

Vehicle with electric motors

Abstract: A first link mechanism of a suspension is provided at a rear end portion of a vehicle for connecting a drive wheel to a vehicle body, so that the drive wheel performs vertical movements relative to the vehicle body via the first link mechanism. In addition, a shock absorber is attached to a lower arm of the first link mechanism for resiliently supporting the drive wheel relative to the vehicle body. Furthermore, a second link mechanism is provided on the upper arm and the lower arm of the first link mechanism which performs symmetrically vertical movements relative to the vertical movements of the first link mechanism, and a motor is integrally attached to the second link mechanism, whereby inertia energy resulting from the vertical movements of the drive wheel and inertia energy resulting from the vertical movements of the motor are made to be offset against each other.

Hub drive and method of using same

Abstract: A hub drive includes an in-hub motor and a shifting in-hub transmission coupled with the motor. A hub drive wheel assembly includes a wheel comprising a hub, an in-hub motor, and a shifting in-hub transmission having an input attached to the motor and an output attached to the wheel. A vehicle includes a chassis, a wheel comprising a hub, an in-hub motor, and a shifting in-hub transmission having an input attached to the motor and an output attached to the wheel for rotating the wheel with respect to the chassis. A method includes providing a shifting transmission and a motor coupled with the transmission in a hub of a wheel, providing electrical power to the motor, and rotating the motor with the electrical power. The method further includes rotating the transmission with the motor and rotating the wheel with the transmission.

Rear wheel drive power wheelchair

Abstract: A curb-climbing rear wheel drive power wheelchair is disclosed having a pair of drive wheels, at least one ground-engaging idler wheel connected to the frame forward of the drive wheels and at least one anti-tip wheel mounted above ground aft of the drive wheels. Each drive wheel and an associated drive assembly are mounted to a motor support bracket that is pivoted to the frame of the wheelchair. The drive assembly is mounted such that its motor is angled upward and rearward from the bracket. The anti-tip wheel is attached to one motor support bracket such that pivoting of the motor support bracket causes vertical displacement of the anti-tip wheel.

Drive wheel for track apparatus

Abstract: A drive wheel (212) engaged with flexible track (15) of track apparatus (220) mountable on a vehicle axle, the drive wheel including a peripheral portion which, between radially-extending drive members (230), has outwardly-facing lug-engagement surfaces (223s) in position for engagement with the distal surfaces (32a) of the track lugs (32), to extend the useful life of flexible track. Preferred embodiments have spaces facilitating removal of debris. Certain preferred lug-engaging surfaces are provided by peripherally-spaced cross-members (223). The drive wheel is preferably free of side structure, allowing track lugs to adjust precise positions of engagement with lug-engagement surfaces.

Device for driving a coolant pump

Abstract: The invention relates to a device for driving a coolant pump (2) for the coolant circuit of an internal combustion engine in a motor vehicle comprising a drive train that encompasses a drive wheel (7), a viscous coupling (11), and a drive shaft (3). The inventive driving device is provided with a second coupling (15) which is embodied as a clutch and can be connected to the drive train parallel to the viscous coupling (11), resulting in increased redundancy and two-step rev control.

Method and device for controlling device

Abstract: A car control apparatus comprising a wheel sensor 13, wheel torque calculating means 23 for calculating wheel torque from the wheel speed, drive force detecting means 12 for detecting drive force generated by an electric motor 3, car body drive force calculating means 24 for calculating car body drive force from the above drive force and wheel torque, car body drive force fluctuating component extracting means 25 for extracting multiple frequency band fluctuating components of the car body drive force, and drive or braking force control unit 22 for controlling the running state of a car, wherein drive or braking force to be applied to each wheel is obtained from main drive force, slip ratio control drive force and tire disturbance compensation drive force calculated based on the extracted fluctuating components of the car body drive force and supplied to a motor controller 11 to drive or brake the drive wheel 2 and apply micro-vibration to the tire in order to suppress micro-vibration generated between the tire and the road surface, thereby making it possible to improve the road holding properties of the tire and the driving stability of the car by compensating for disturbance applied to the tire.

Driver of electric automobile

Abstract: A driver of electric automobile in which the drive wheel of the electric automobile can be selected accurately depending on the road conditions. In an electric automobile having four or more wheels, all wheels (1-4) are fixed with drive motors (5-8) capable of driving and regenerative braking, and a plurality of the wheels are selected out of the wheels (1-4) as drive wheels or regenerative brake wheels depending on the traveling conditions.

Traction control system including individual slip threshold reduction of the drive wheel on the outside of the curve

Abstract: A vehicle traction control system having capabilities for braking intervention and coefficient of friction detection is provided, a slipping wheel being braked by braking intervention if a slip threshold is exceeded. In order to improve the lateral stability of the vehicle when cornering on road surfaces having a low coefficient of friction, the slip threshold for the drive wheel on the outside of the curve is reduced independently of that of the drive wheel on the inside of the curve and is set to a lower value than that for the wheel on the inside of the curve.

Trolley with tractor drive for use in curved enclosed tracks and system including the same

Abstract: An enclosed track system comprising an enclosed track having at least one curved portion and a trolley including a rolling section having first and second roller portions located within the track and spaced from each other and an externally located drive section. The second roller portion comprises a drive wheel arranged to roll on an inner surface of the track. The drive section has an articulated joint coupling the first and second roller portions to each other. The drive section includes a motor to cause the drive wheel to rotate, whereupon the trolley rolls along the track, with the articulated joint enabling the first and second roller portions to pivot longitudinally with respect to each other so that the trolley can negotiate curves in the track.

Drive mechanism for trailer

Abstract: The present invention discloses a drive wheel for placement on the front end of a boat trailer or the like which wheel both drives and steers a trailer into a position where the trailer tong can be connected to the rear end of the towing vehicle. The concept of the present invention may also be applied to other similar vehicles, such as trailers for hauling snowmobiles, woodcutters or water crafts and other heavy objects and possibly for travel trailers.

Dual-purpose exerciser operable in pedaling and rowing modes

Abstract: A dual-purpose exerciser includes an axle mounted on a frame section, a pair of pedal units coupled to the axle, and a drive wheel connected to the axle through a first one-way clutch such that the drive wheel is rotatable with the axle in a certain direction. A drive belt is trained on the drive wheel and a resistance wheel. A pull wheel on the axle is connected to the drive wheel through a second one-way clutch such that the pull wheel can drive rotation of the drive wheel. A pull rope is secured to the pull wheel.

Control unit and control method for controlling vibration of an electric vehicle

Abstract: A control unit of the present invention for an electric vehicle capable of being driven using torque from an electric motor generated in response to a torque instruction, comprising an electric motor rotation speed detection and estimation unit for detecting or estimating rotation speed of the electric motor, a drive wheel rotation speed detection and estimation unit for detecting or estimating rotation speed of drive wheels, and a torque instruction compensation unit. The torque instruction compensation unit compensates the torque instruction so as to control vibration of the vehicle based on rotational speed of the electric motor detected or estimated by the electric motor rotation speed detection and estimation unit and drive wheel rotation speed detected or estimated by the drive wheel rotation speed detection and estimation unit.

Freestanding self-propelled device for moving objects

Abstract: A freestanding self-propelled device for moving objects. The device includes a chassis having lower frame portions and upright frame portions. A single motor-driven drive wheel is centrally located between the lateral ends of the chassis and coupled to the chassis so as to be pivotable about a substantially vertical axis. The drive wheel is located between sets of support wheels coupled to the lower frame portion of the chassis. In combination, the drive wheel and the support wheels result in the device being freestanding. The drive wheel projects below the sets of support wheels so that the device is supported by the drive wheel and by only one of each set of support wheels at any given time, thereby establishing a three-point contact with the surface supporting the device. A tiller equipped with controls is pivotably coupled to the drive wheel for pivoting the drive wheel about its vertical axis.

Motor vehicle powertrain control method for low traction conditions

Abstract: A driver-initiated low traction control method limits the drive torque of a motor vehicle during operation on low traction road surfaces. The low traction control mode is initiated by actuation of a switch or by moving a transmission range selector to a Low range while the vehicle is substantially stopped, and terminated by further actuation of the switch or by returning the range selector back to the Drive setting. The low traction control mode limits the engine torque as required to limit the drive wheel torque and its rate of change, so long as cruise control is inactive, the accelerator pedal setting is less than a reference level, and the transmission is operating in a gear other than its top gear. When the low traction control mode is terminated, the engine torque limits are progressively removed in a way that does not produce perceptible acceleration or deceleration of the vehicle.

Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters

Abstract: The invention relates to a drive for valve operating control systems in motor vehicles, preferably for camshaft adjusters, comprising at least one drive wheel (2) and functional parts, such as a cover (3), a stator (6), a closing ring (4) and a sealing ring (28), in addition to at least one rotor (7). According to the invention, the drive wheel (2) and at least one of the functional parts (3-6) are produced in a single part from a high-resistant, non-metallic material.

Worm gear driven variable cam phaser

Abstract: A phaser for adjusting the timing between a camshaft and a crankshaft. The phaser consists of an outer housing having internal and external teeth and an inner housing connected to the camshaft. The outer teeth couple to the cam drive—the timing chain, timing belt or timing gears. A worm mounted on the inner housing is meshed with the internal teeth of the outer housing. The worm gear is connected to one or two drive wheels, which are rotated by contact with stationary plates. The plates are moved by electromagnetic coils to contact the drive wheel or wheels, and turn them in one direction or the other. The actuators are activated by an engine control unit. The plates can be mounted concentrically on one side of the phaser, or on opposite sides.

Control circuitry for enabling drive system for vacuum cleaner

Abstract: A self-propelled appliance comprises a base, electric motor mounting the base, a handle moveably depending from the base and a drive wheel mounted in the base and operatively connected to the motor. The control circuits comprising an enable switch and a base switch control the communication of power from the power supply to the motor relative to a gripping of the handle by a user of the appliance and a selective positioning of the handle relative to the base.

Wheel securing device

Abstract: A wheel securing device is utilized with a wheel cradle of a automobile dolly for securing an automobile wheel towing an automobile. The wheel securing device includes a frame, a shaft mounted to rotate in the frame. The shaft extends beyond the frame and the shaft has a slot through it within the frame. A ratchet gear is mounted on the shaft outside and adjacent to the frame. A latch is mounted to rotate on the frame to engage the ratchet gear to permit rotation of the ratchet gear and the shaft in only one direction. A web assembly is utilized for mounting on the automobile wheel. The web assembly is connected to the shaft at the slot. A drive pulley is mounted on the shaft and the drive pulley has a nut extending from it on the side of the drive pulley opposite from the side facing the ratchet gear for tightening the web assembly on the automobile wheel. By placing the ratchet gear and latch on the outside of the frame and extending the shaft, the drive wheel can be placed outside the cradle for easy operation.

Semi tracked-type working vehicle

Abstract: A semicrawler-type working vehicle is provided having a vehicle body ( 3 ), a front steering control wheel ( 7 ) arranged at a front side of the vehicle body, a drive shaft ( 26 ) and a pivot shaft ( 22 ) arranged at a rear side of the vehicle body, and a semicrawler unit ( 2 ) driven by the drive shaft. The semicrawler-type working vehicle comprises: a track frame ( 16 ) by which the semicrawler unit ( 2 ) is supported via the pivot shaft ( 22 ) so as to be pivotable relative to the vehicle body ( 3 ); a drive wheel ( 11 ) arranged on the drive shaft ( 26 ); a front driven wheel ( 12 ) and a rear driven wheel ( 13 ) that are supported by the track frame ( 16 ) such that a horizontal distance from the drive wheel ( 11 ) to the front driven wheel ( 12 ) is longer than a horizontal distance from the drive wheel ( 11 ) to the rear driven wheel ( 13 ); and a crawler belt ( 15 ) that is wound around the drive wheel ( 11 ), the front driven wheel ( 12 ), and the rear driven wheel ( 13 ). The pivot shaft ( 22 ) is displaced forward than a vertical line that runs through a center of the drive wheel ( 11 ).

Drive assembly for driving a rotary member, in particular a combustion engine water pump shaft

Abstract: In a drive assembly for driving a pulley of a water pump of a combustion engine, a movable supporting arm is fitted idly with a drive wheel, and is loaded by a torsion spring to bring the drive wheel into angular engagement with the pulley fitted to the shaft of the pump, and with a drive belt of the engine; an actuating device being activatable to exert a force in opposition to that exerted by the torsion spring, and detach the drive wheel from the pulley.

Traction chain comprising a gear mechanism integrated in a wheel

Abstract: Traction chain for an automobile vehicle including a wheel support (K) which supports a rotating hub designed to receive a drive wheel (W), and a rotating toothed wheel having the same rotation axis as that of the drive wheel, the toothed wheel meshing directly with the hub. At least two gear-wheels are permanently engaged with the toothed wheel and are rotated by an input shaft that is driven by an electric motor. A gear ratio change shifter mechanism is shiftable between first and second driving positions and a neutral non-driving position. In the first driving position the shifter mechanism directly connects the input shaft with one of the gear-wheels. In the second driving position the shifter mechanism indirectly connects the input shaft with the other gear-wheel through a transmission path which establishes a gear reduction ratio different from the gear ratio established by the direct connection.

Power-control method of composite power motorcycle

Abstract: The power control method of composite power motorcycle includes: detection, starting, running and actuating. The detection step utilizes car speed detection unit, rotating speed detection unit and accelerator opening extent detection unit to respectively detect car speed, rotating speed of crankshaft of motorcycle and opening extent of accelerator handle to respectively produce detection signals and simultaneously start control unit to receive detection signals, then the control unit can be used for controlling starting and stopping of driving motor and controlling starting system of engine, and in the actuating step, according to the car speed, rotating speed of engine crankshaft and opening extent of accelerator handle it can change its driving mode which utilizes the driving motor or/and engine to drive wheel of motorcycle to make it rotate.