24121 results about "Drive wheel" patented technology

A transmission for a working machine including a drive transmission mechanism and a working transmission mechanism operated by swinging a shift lever is provided. The drive transmission mechanism has a key-sliding transmission mechanism axially mounted on a drive shaft. The key-sliding transmission mechanism causes a selected one of a plurality of gears rotatably mounted on the drive shaft and the drive shaft to rotate together to transmit power to drive wheels.

A robotic vehicle capable of traveling over various terrain and traversing obstacles. In one embodiment, the vehicle includes a cylindrical body having two or more drive wheels coupled to the ends thereof. The wheels are selectively powered to propel the vehicle. The vehicle may further include a spring member which may be deflected to a first, stored position from a second, extended position. The spring member may be quickly released from the first, stored position such that it strikes the terrain with sufficient force to lift and propel the vehicle over or onto a proximate obstacle or object. Robotic vehicles of the present invention may also include one or more sensing devices operable to collect information. Electronics may further permit autonomous, semi-autonomous, and/or remote control of the vehicle. In still other embodiments, the robotic vehicle forms part of a multi-robot surveillance team. The robotic vehicles may be delivered to the desired location through the use of a deployment and communication apparatus which, in one embodiment, is a larger robotic vehicle. The deployment and communication apparatus may form part of the communication system between the robotic vehicles and a remote workstation.

An electric traction vehicle comprises a vehicle platform, a communication network, a power source mounted on the vehicle platform, a plurality of drive wheels rotatably mounted on the vehicle platform, a plurality of electric motors coupled to respective ones of the plurality of drive wheels, and a plurality of microprocessor-based interface modules coupled to the plurality of electric motors. The interface modules are configured to control the plurality of electric motors and are coupled to each other by way of the communication network.

An apparatus which extrudes flowable material from a liquifier includes a system for loading filament supplied in a cassette. The cassette is loaded into a loading bay of the apparatus. A strand of filament from the cassette is engaged and advanced along a path to the liquifier using a drive wheel or roller pair. A conduit having an entrance in the loading bay guides the filament as it is advanced. The filament loading system of the present invention provides a convenient manner of loading and unloading filament in a three-dimensional modeling machine, and can be implemented in a manner that protects the filament from environmental moisture.

The invention relates to: A portable medication delivery device (1) comprising a medication cartridge (11) having an outlet (111) and a movable piston (112), and a housing (12) for holding said cartridge, and a flexible piston rod (13) being operable to engage and displace said piston along an axis (113) of said cartridge, and guiding means (14) for bending said piston rod away from said axis, and actuating means (15), and driving means (16, 17) for transferring movement from said actuating means to said piston rod, said driving means including a driving wheel (17) for displacing the piston rod (13), said flexible piston rod comprising regularly spaced first members (330; 331; 332) adapted to mechanically cooperate with corresponding second members (171) on said driving wheel. The object of the present invention is to provide a medication delivery system that combines compactness with an improved accuracy. The problem is solved in that said flexible piston rod (13) exhibits a linear or approximately linear path between said driving wheel (17) and said piston (112). This has the advantage of yielding a compact, low-weight device with an improved dose accuracy. The invention may e.g. be used in injection or infusion devices for a person's self-treatment of a disease such as diabetes.

A railroad vehicle (1500) for carrying freight is described. The railroad vehicle (1500) comprises power regeneration capability through a traction motor (1530) linked to a driving wheel (1520D), an electrical energy storage system (1550), a controller (1570) that may selectively operate the traction motor (1530) in a motoring mode, a coasting mode, or a dynamic braking mode. In the dynamic braking mode electrical energy from the traction motor (1530) is transmitted to the electrical energy storage system (1550). The controller (1570) is in communication with a communication link (1580) that receives control commands from an external control source (1595), and those control commands indicate the operating mode for a particular period of time.

A multivariable feedback control approach to actively dampen magnitude of jerks in a powertrain system using multiple torque-control devices is offered. To manage jerks, a desired axle torque is restricted when a torque reversal occurs. When the vehicle operator or the system executes a command that requires change in direction of torque, the desired axle torque is limited to a low level until the lash estimate has changed accordingly. During this transition time, active damping controls driveline component speeds so that the effect of lash take-up is minimized. After lash take-up occurs, the desired axle torque proceeds without restriction. The invention includes determining a desired axle torque, an output speed of the transmission, and an output speed of a driven wheel of the driveline. One of the devices is controlled based upon a time-rate change in the desired axle torque.

An improved vehicle active brake control based on an estimate of vehicle yaw rate and slip angle, wherein the estimate is based on a weighted average of two yaw rate values developed with two different estimation techniques. In general, the first estimate of yaw rate is based on the relative velocity of the un-driven wheels, and the second estimate is based on a measure of lateral acceleration. Confidence levels in each estimate are determined and used to form a third or preliminary yaw rate estimate based on a weighted average of the first and second estimates, and the third estimate is supplied to a closed-loop nonlinear dynamic observer which develops the final estimate of yaw rate, along with estimates of lateral velocity and side-slip angle.

A reactive AGV system includes an AGV vision guidance system which places the camera system and controlled lighting sources between the drive wheels of the AGV to shield from ambient light and provide a constant lighting condition. The AGV guide path includes physical path properties for controlling AGV behavior. Visual Parameters of the guide path such as line thickness, line color, the presence and form of a secondary control line, or the presence of distinct a line elements may all be used as visual input control signals for the AGV. Additionally viewable icons are used for controlling AGV routing. These icons may, preferably, also be human readable to enhance the customer understanding and therefore usage of the system.

The invention provides a wheel driving robot finger device, belonging to a robot technical field which comprises a base, a motor, a reducer, a first gear, a second gear, a close joint shaft, a middle part finger, a far joint shaft and a terminal finger section as well as a driver, a transmission part, a driven wheel, a spring part. The middle part finger is sleeved on the close joint shaft. Two terminals of the spring part are respectively connected with the middle and the terminal finger sections. The device uses a pair of wheel mechanisms to sleeve a plurality of active middle part fingers with the decoupling effect of the spring part comprehensively to realize the special effect that the double joints drive the finger to bend so as to catch the objects. With simple structure, reliability, low cost, convenient installation and maintenance, small volume and light weight, the wheel driving robot finger device similar to human fingers is especially suitable for being used as a thumb of the hand of the humanoid robot or a part of other fingers that uses fewer drivers to drive more rotation joints to automatically adjust to catch the objects of different shapes and sizes.

A robotic vacuum cleaner includes a casing with a motor-driven wheel unit mounted on a lower major wall thereof, and a tactile sensor unit yieldable radially relative to the casing. An electrical control unit is operable to control the wheel unit to operate in a starting mode in which the casing is moved along a spiral path, and, upon receipt of a switching signal generated by the sensor unit in response to a contact of the sensor unit with an obstacle, controls the wheel unit to operate in an edge-cleaning mode in which the wheel unit is initially turned to a normal angle, is then driven to move forward a predetermined distance, is subsequently turned to an activating angle, and is moved towards the obstacle to permit contact of the sensor unit with the obstacle so as to result in generation of switch signal enabling the wheel unit to continue to operate in the edge-cleaning mode.

A hybrid drive arrangement for a motor vehicle including an internal combustion engine (1), which is connected or can be connected in a wheel-driving manner, via a first torque transmission path (11, 13), to a driving wheel (15) of the motor vehicle. An electric machine (19), which is operable at least as a motor, is fed from an electrical energy source (7, 29) of the motor vehicle and is connected or can be connected in a wheel-driving manner, via a second torque transmission path (21, 23, 13), to the driving wheel (15). Arranged in the first and/or the second torque transmission path are coupling elements (11, 23) which, in a first operating state, permit the driving of the motor vehicle by the wheel-driving torque of the electric machine (19), operated as a motor, without mechanical torque support from the internal combustion engine (1), and which, in a second operating state, permit the driving of the motor vehicle by the internal combustion engine (1), without mechanical torque support from the electric machine (19). Depending on the driving speed of the motor vehicle, an electronic driving control system (31) activates the first operating state, at least in a first range of driving speeds including standstill of the vehicle, if the driving speed is less than a predetermined speed limit, and activates the second operating state, at least in a second range including the maximum speed of the vehicle, if the driving speed is greater.

The present invention provides a wheel set for robot cleaner, which is installed under the main body of a robot cleaner for supporting the main body to move on a floor. The wheel set comprises two driving wheels. Each of the driving wheels includes a power source, two transmission mechanisms and two wheels. Each of the two transmission mechanisms is linked correspondingly with one of the two wheels and the power source so that the wheels are driven by the power source to traverse obstacles on the floor and do not scrape the floor.

A vehicle information display (56) for a hybrid electric vehicle is provided. The display (56) includes an engine icon (60), a motor icon (62), a battery icon (64) and a vehicle drive wheels icon (66). To provide information to the vehicle operator regarding the operating state of the vehicle, power flow indicators (68, 70, 72) between the various icons are used to indicate the direction and magnitude of power flow between corresponding components of the vehicle.

A device is disclosed for passing a flexible elongated element through a portion of a subject. In an embodiment, the device includes structure for retaining said flexible elongated element; and advancement structure for longitudinally advancing the flexible elongated element from a proximal end of the device toward a distal end of the device with sufficient force to pass the flexible elongated element through the portion of the subject. The advancement structure includes at least one drive wheel for contacting the flexible elongated element, and further wherein the at least one drive wheel contains a peripheral groove therein for receiving the flexible elongated element so as to provide increased contact area between the at least one drive wheel and the flexible elongated element.

An embodiment of a high-mobility vehicle comprises a vehicle body, a track assembly attached to the vehicle body, arms pivotally attached to the vehicle body, and trackless drive wheels mounted on distal ends of the arms. Another embodiment of a high-mobility vehicle comprises a vehicle chassis, right and left drive motors attached to the vehicle chassis, right and left power transmission mechanisms having high torque and low torque sets of gears, track assemblies coupled to the high torque sets of gears, and trackless drive wheels coupled to the low torque sets of gears.

A wheelchair has a base and a plurality of wheels supporting the base on a supporting surface. At least one of the wheels is a driven wheel. One of the wheels may be a non-driven wheel. One or more of the wheels, driven or non-driven, is adapted to be steered. In a preferred embodiment of the invention, all of the wheels are driven and steered independently of one another. The wheelchair also has a seat that is mounted for movement relative to the base. Movement of the seat is preferably controlled independently of the steering direction of the wheels. The wheelchair may further include one or more sensors for controlling the stability of the wheelchair. These sensors may include wheel position sensors, speed sensors, rate-of-turn sensors, accelerometers, and proximity detectors. Such sensors would be useful in controlling the tracking of the wheelchair, avoiding the occurrence of tipping and tilting, and avoiding impact with obstacles.

A drive train for a hybrid vehicle having first, second and third motors includes a first variable transmission, having an input shaft, and an output shaft coupled to a drive wheel of the vehicle, and first, second, and third clutched rotational drive connections. The rotational drive connections selectively interconnect an output shaft of the first, second and third motors, respectively, with the input shaft of the first transmission, whereby torque from each of the three motors can be selectively combined through the variable transmission to drive the drive wheel.

Disclosed is a sterile adapter. The sterile adapter is interposed between an instrument holder formed at a surgical robot arm and a surgical instrument mounted on the instrument holder, wherein the sterile adapter comprises: a body portion comprising a first surface facing the instrument holder, and a second surface facing the surgical instrument; a first wheel which is elastically supported in the body portion, is exposed to the first surface, and is fitted to a first drive wheel formed at the instrument holder; and a second wheel which is elastically supported in the body portion, is exposed to the second surface, and is fitted to a second drive wheel formed at the instrument.; An elastic structure is applied to the sterile adapter to allow the wheels formed in the sterile adapter to be pushed in both directions, thereby enabling the easy and convenient mounting of a surgical instrument on a robot arm without applying a separate elastic structure to the instrument holder or the instrument.

The invention discloses a robot which comprises a robot body and a remote interactive platform. The remote interactive platform is communicated with the robot body through a wireless communication network platform, the robot body comprises a moving device and a function module which is arranged above the moving device, the moving device comprises mechanical legs, a base plate, direct current brushless motors, direct current brushless motor drivers, driving wheels and universal wheels, the base plate is arranged at lower ends of the mechanical legs, the direct current brushless motors are arranged in the base plate, the driving wheels are connected with the direct current brushless motors, and the function module comprises a multiple-degree-of-freedom mechanical waist, a mechanical neck, a mechanical head, mechanical arms and mechanical hands. The robot is exquisite in structure, flexible in movement and high in simulation degree, portions of the robot can perform multiple-degree-of-degree movement, and the robot supports wireless remote control and information transmission and is capable of well achieving various functions of route planning, autonomous navigation, face recognition, man-machine conversation, guests receiving and the like.

A floor cleaning machine having a body in which the body cover assembly is hollow and serves as the recovery solution reservoir; while the lower body assembly, which is also hollow, serves as the cleaning solution tank or reservoir. In addition, the lower body has a recessed area proportioned to receive and secure the batteries required for driving the motors involved in the floor cleaning machine. A trans-axle drive supports the lower body and has a drive wheel at each end powered by a motor differential engaging the axles coupled to the wheels. Together the body and trans-axle drive comprise a modular power unit. Mounting means are provided on the forward portion of the lower body of the power unit for lift arms to be secured to various power floor scrubbers for use on hard floors or a carpet extractor for cleaning carpeted floors. The linkage for the floor scrubber mode and carpet cleaning mode is the same. Such linkage also uses a maximum number of resiliently mounted bushings which, along with the monocoque body and retained fluid movement, cushion against damage by impact under power.

There is provided a power transmission mechanism which is capable of employing one electric motor as a drive source for driving drive wheels and as a drive source for cranking an engine, thereby making it possible to reduce manufacturing costs of the hybrid vehicle, and preventing the motor from offering an extra rotational resistance to the engine when the drive wheels are being driven by the engine, thereby making it possible to enhance fuel economy. In the power transmission mechanism for transmitting the driving force from the engine and/or the electric motor to the drive wheels, when a synchro-clutch for the electric motor, driven by a switching actuator, connects the drive shaft of the electric motor and a driving drive shaft gear to each other, the electric motor is connected to the drive wheels via a meshing gear pair (driving drive shaft gear and driving output shaft gear), whereas when the synchro-clutch connects the drive shaft of the electric motor and a cranking drive shaft gear to each other, the electric motor is connected to the engine via a meshing gear pair (cranking drive shaft gear and cranking input shaft gear), the input shaft of the transmission, and a clutch.

The present invention relates to a zero turning radius vehicle having at least one steerable front wheel and a multistage steering input system separately capable of steering the at least one front wheel and selectively driving the drive wheels. A front wheel steering system comprises at least one oblongated sprocket meshingly connected to a steering shaft. An engagement cam system provides the ability to selectively, independently couple the steering wheel to pump arms driving a first and second drive wheel. A steering cam shaft comprises at least one steering cam that acts on at least one bearing. Once the engagement cam system rotates the at least one bearing into place to receive the at least one steering cam, rotation of the steering cam independently alters the speed of one drive wheel in relation to the other drive wheel in response to steering input provided by the operator.

The present invention discloses small compact motor systems which may be located inside a vehicle drive wheel, and which allow a drive motor to provide the necessary torque with reasonable system mass. The motor systems of the invention utilize polyphase electric motors, and are preferably connected to appropriate drive systems via mesh connections, to provide variable V/Hz ratios. In one embodiment the stator coils are wound around the inside and outside of the stator. In a further embodiment, the machine contains a high number of phases, greater than three. In a further embodiment, the phases are connected in a mesh connection. In a further embodiment, each half-phase is independently driven to enable second harmonic drive for an impedance effect. Improvements are apparent in efficiency and packing density.

The invention relates to a powered wheel system for an aircraft, comprising at least one undercarriage with several rotatably held wheels, with the powered wheel system comprising two or more motors of which in each case at least one motor is coupled to at least one of the wheels, and comprising at least one control device that is coupled to the motors. A control device is equipped to control operation of the motors independently of each other as far as their respective rotary speeds and direction of rotation are concerned, so that the system is able, among other things, to effect taxiing; by means of rotary speed differentials on different motors to be able to steer the aircraft; prior to landing to bring the wheel circumference speeds to landing speed; and to boost the undercarriage brakes of the aircraft. Furthermore, by means of an improvement of the system according to the invention, the rotary speeds of the wheels may be determined with precision. The invention furthermore relates to a method for driving wheels of an aircraft.

In a power transmission system for transmitting power of an engine to a load, a planetary gear mechanism provided in parallel to a speed variator combines torque conveyed from the engine with torque conveyed from a motor generator in a state such that their torque ratio equals a predetermined ratio, and transmits the combined torque to a driven wheel. When performing power transmission between the engine and the driven wheel via both the speed variator and the planetary gear mechanism, power distribution between the power conveyed to the speed variator and the power conveyed to the planetary gear mechanism can be actively controlled by adjusting the torque of the motor generator. As a result, the speed variator capacity can be reduced while enhancing power transmission efficiency.

The invention discloses a range extended electric vehicle control system, and relates to a whole vehicle control system. The range extended electric vehicle control system comprises an engine controlled by the conventional throttling valve, a generator which is integrally connected with a crank shaft of the engine and has functions of generating power and driving, a vehicle-mounted power battery, a whole vehicle controller, a range extender controller, a battery management system, a battery direct current sensor, an engine controller unit, a generator controller unit, a generator end direct current sensor and a permanent magnet synchronous driving motor, wherein the permanent magnet synchronous driving motor, the power battery and the generator are connected to a power line and used for driving wheels, a motor controller, a motor direct current sensor, the throttling valve and a crank shaft position sensor; the range extender controller communicates with the engine controller unit and the generator controller unit and sends a control instruction; and the range extender controller manages power generation energy and controls an auxiliary system according to a demand of a driver and a state of a range extender system. The invention also discloses a range extended electric vehicle control method. The range extended electric vehicle control system and the range extended electric vehicle control method can be used for electric automobiles.

A battery-operated two-speed salad spinner. The bowl receives one of two differently sized baskets. A cover includes a driving mechanism that rotates a selected bowl through a driving wheel.

A base for receiving a seat has a longitudinally extending chassis having a front end, a rear end, a central portion positioned therebetween and opposed sides extending longitudinally between the front and rear ends; at least one drive wheel mounted below the central portion; a plurality of rotatably mounted wheels positioned around the chassis and mounted at a fixed distance below the chassis; and a biasing member associated with the at least one drive wheel to bias the at least one drive wheel to engage the surface on which the base is situated and reduce the weight supported by the rotatably mounted wheels whereby the rotatably mounted wheels support sufficient weight of the base and the unoccupied seat to define a stable platform.

The present invention provides an electric-driven vehicle, which comprises a supporting platform and an upright tube, wherein the supporting platform has first and second ends and a longitudinal axis perpendicular to the first and second ends, the upright tube is fitted at the first end of the supporting platform and operatively connected with the supporting platform, a handle frame is provided on a top end of the upright tube. The electric-driven vehicle further includes two driving wheels operatively mounted at opposite sides of the first end of the supporting platform, at least one steering wheel operatively mounted on a bottom of the second end of the supporting platform, a driving means for the driving wheels, and a power supply means mounted on the bottom of the supporting platform and electrically connected with the driving means. The present invention also provides a support platform structure for an electric-driven vehicle, which comprises a first portion and a second portion, wherein the first portion having sleeves for operatively mounting the driving wheels, and a first side; the second portion having a steering knuckle for operatively mounting the steering wheels, and a second side corresponding to the first side; the first side and the second side are connected via a connecting member, and at least one of the first side and the second side can rotate about the bond-linkage element.