47results about How to "Reduce tire wear" patented technology

The present invention is a compound planetary gear system which has a moveable sun gear and a lockable sun gear to change the gear ratio between a high gear ratio and a pseudo 1:1 slipping ratio. The system makes use of a ratchet and pawl mechanism to provide a safety backup for when the lockable sun gear is locked. The invention may be used to move the aircraft from a stationary position, for taxiing, and for pre-rotating the wheels prior to landing.

The present invention is directed to an apparatus for driving an aircraft having an undercarriage wheel, comprising aircraft drive means for driving an undercarriage wheel, and a clutch disposed between said driven means and said wheel, wherein said drive means and said clutch are directly connected to the undercarriage apparatus. Said apparatus may have gears disposed between said drive means clutch, or between said clutch and said wheel. In a most preferred arrangement, the apparatus of the invention fits inside the hub of said wheel. When the invention is applied to an aircraft undercarriage wheel, the clutch allows the wheel to be disengaged for takeoff and landing.

A roadway upon which a vehicle travels is provided in which the vehicle is decelerated. The roadway includes: a movable surface extending in a direction of the vehicle's travel; and a potential energy storage mechanism operatively connected to the movable surface for converting a kinetic energy of the vehicle into potential energy upon movement of the movable surface thereby slowing the vehicle. Also provided is a roadway upon which a wheeled vehicle travels in which the vehicle is accelerated. The roadway includes: a movable surface extending in a direction of the vehicle's travel; and a potential energy transfer mechanism operatively connected to the movable surface for transferring a stored potential energy associated with the movable surface into kinetic energy upon movement of the movable surface thereby propelling the vehicle.

The present invention is directed to self-healing materials and use thereof for extending the lifespan of a tire. The self-healing material includes a rubber healing agent, e.g., sulfur, encapsulated by a coating material, e.g., polypropylene, defining a microcapsule. The self-healing materials are processed with rubbery polymers to provide a rubber compound suitable for use in a tire. The microcapsule coating material is selected to prevent release of the healing agent during the processing steps of the rubber compound, such as can occur through melting or softening of the coating material, and to release the healing agent, e.g., via melting or softening, at a desired temperature greater than a tire's running temperature. Release of the healing agent can help repair damage to local polymeric structure, such as broken cross-links, by reacting with the surrounding rubber. In this way, that area of the rubber compound can be reinforced, thereby prolonging the life of the tire.

Disclosed herein is a turning motion assistance device for an electric vehicle, adapted to effectively reduce tire wear of the vehicle while at the same time ensuring appropriate turning response.A turning motion assistance device for an electric vehicle including steered wheels 101 and 102, driving wheels 103 and 104, motors 105 and 106, and a steering wheel 108 for controlling a steering angle of the steered wheels 101 and 102, includes a target wheel slip angle calculating unit 151 for calculating a target wheel slip angle from the steering angle, a vehicle state quantity detector for detecting vehicle state quantities, an actual vehicle-body slip angle calculating unit 152 for calculating an actual vehicle-body slip angle from the vehicle state quantities, an actual wheel slip angle calculating unit 153 for calculating an actual wheel slip angle from the actual vehicle-body slip angle and the steering angle, a yawing moment requirement calculating unit 154 for calculating a yawing moment requirement from a difference between the target wheel slip angle and the actual wheel slip angle, and a torque correction data calculating unit 155 for calculating an amount of torque correction for generating the yawing moment required; in this assistance device, a torque that has been corrected in accordance with the amount of torque correction is applied from the motors 105 and 106 to the driving wheels 103 and 104, respectively.

An aviation tire including, a pair of side walls, the side walls having an outer surface, a tread portion spanning a radial outer extremity of the side walls, and a rotating assembly formed on the side wall or the tread portion, the rotating assembly having an increased resistance to wind when located at a lowermost portion of the tire.

An embedded Tire Pressure Monitoring sensor is incorporated into vehicular wheels and a secured central server is used to track the unique identification code of each sensor. The TPMS is installed by the vehicular manufacturer in accordance with the federally mandated TREAD Act of 2000. When a vehicle enters the radius of a first encrypted TPM sensor detection transceiver, its TPM sensor identification codes are recorded and time-stamped via an encrypted TPM sensor detection transceiver. If the vehicle enters the area of a second encrypted TPM sensor detection transceiver, the sensor codes will be recorded and time-stamped a second time, encrypted and sent to the secured central server. Using the two encrypted, time-stamped signals, the secured central server calculates traffic flow data.

Small air pumping devices are mounted directly in the conventional tire valves to keep the vehicle's tires properly inflated without requiring the user's attention. If a tire is beginning to become under-inflated, a pumping piston having a single check valve is moved reciprocally in the tire valve stem by the cyclical deformation of the tire during the vehicle's travelling. The ambient air is pumped into the tires through the tire valves. The tire valves incorporating the pumping devices are kept using in a regular manner for reliably preventing air escaping from the tires and for inflating the tires from the external sources. Such “self-inflating” tire valves may be mounted as the regular tire valves both in new manufactured vehicles or in used vehicles without any modifications in the vehicle's axes, wheels or tires and without the necessity to make additional openings in the wheel.

A wheel suspension for a motor vehicle is described, in which at least a first and at least a second control arm (1, 2) are coupled in an articulated manner to a wheel carrier (4) carrying a vehicle wheel (3). The wheel suspension has a compensating device (5, 6) for correcting wheel positions, and each control arm (1, 2) has a portion of the compensating device (5, 6) or is connected to a portion of the compensating device (5, 6). The compensating device portions (5, 6) of one wheel are connected to one another by at least one coupling member (7, 8).

The invention provides a motor torque control method and a wheel rim motor distributed drive system. The method is applied to a vehicle control unit in the system. The system further comprises two motor systems. The motor systems comprise motors. By means of the method, the following motor torque control process is executed to the motor systems at the same time. Based on current accelerator pedalsignals and the current rotating speeds of the motors in the motor systems, torque basic values of the motors in the motor systems are calculated; the torque basic values of the motors are corrected,and torque corrected values of the motors are obtained; the torque corrected values of the motors are limited through the current vehicle speed of a vehicle and the motor torque recently sent to the other motor system by the vehicle control unit historically, and torque limited values of the motors are obtained; the motor torque is determined from the torque limited values and the torque correctedvalues of the motors and input in the motor systems to which the motors belong, and therefore the motor systems are controlled to respond to the motor torque to control the motors in the motor systems to drive driving wheels, used for being driven by the motor systems, on the vehicle.

A wheel end assembly having a dual wheel configuration includes independently rotating wheel hubs to reduce tire wear. Each wheel hub is supported on an axle spindle via a bearing member. Another bearing member is mounted between the wheel hubs to allow each wheel hub to rotate independently from the other. A fastening assembly retains the hubs on the spindle to prevent linear movement along the spindle.

Disclosed is an airplane tire, and more particularly, is an airplane tire having air pockets, which can allow a tire wheel to rotate using the resistance of air depending on the speed of an airplane upon landing. The airplane tire can alleviate the landing shock of the tire and preventing wear and deformation of the tire by friction. In particular, the airplane tire can shorten a damping distance by virtue of an increased frictional force thereof when an airplane body stops using a tire wheel brake and achieve generation of a sufficient centrifugal force by rotation, thereby contributing to the safe flying of an airplane and the elimination of environmental pollution.

A vehicle adaptive steering control apparatus includes a front wheel steering mechanism having a right wheel steering portion and a left wheel steering portion that are independently operable relative to one another. A load detection device measures a condition indicative of vehicle loads at one of the following: the left and right suspension structures and the front wheel steering mechanism. A controller in electronic communication with a steer-by-wire steering wheel assembly, the front wheel steering mechanism and the load detection device, calculates toe angle adjustments for each of the right wheel steering portion and the left wheel steering portion in response to determining a load on each of a left front wheel and a right front wheel based on signals from the load detection device. The controller further makes the toe angle adjustments via changes in turning and steering movements effected by the front wheel steering mechanism.

A wheel suspension assembly with a two-part wheel carrier (2) that supports a vehicle wheel (1). A first part (3) of the wheel carrier (2) is articulated to a second part (4) of the wheel carrier (2). Pivoting links (5, 6, 7) connect the first part (3) of the wheel carrier (2) to the second part (4) of the wheel carrier (2) and provide camber and / or tracking adjustment of the vehicle wheel (1).

The invention relates to a lane guidance method for a vehicle, in particular for a commercial vehicle. The vehicle is equipped with a direction control system which actively performs direction control. The vehicle moves inside a lane of a predetermined track which is predetermined on the basis of detected lane parameters. According to the invention, the direction control system respectively summates the predetermined track or detects at least one specified track parameter as a track real value and compares the track real value with at least one predetermined track reference value. When there is a deviation between the track real value and the track reference value, the predetermined track is changed to make the wheels of the vehicle basically travel inside the tracks (2,3) of the lane. An independent claim is also included for a tracking system for executing the method.

The invention discloses a novel motor-based electric car four-wheel independent steering system, and aims at improving maneuverability and handling stability of an electric car. The four-wheel independent steering system has the advantages that when an electric car turns at low speed, front and rear wheels perform antiphase steering, a turning radius of the car can be reduced, and the mobility of the electric car is improved; when the electric car turns at high speed, the front and rear wheels mainly perform in-phase steering, a side slip angle of the car can be reduced, the steady-state overshoot amount of a yaw rate of the car and the like are lowered, and vehicle handling stability is further improved. The steering system comprises novel motors, a connecting mechanism and a transmission mechanism, wherein each novel motor adopts a linear transmission motor; the connecting mechanism is used for connecting the linear transmission motors with the transmission mechanism, and comprises a cylindrical connecting sleeve; the transmission mechanism comprises a steering knuckle arm. Four wheels are all steering wheels and respectively correspond to one linear transmission motor; the four linear transmission motors are mutually independent and directly drive the steering of the respectively corresponding wheel.

A tire (T) for measurement, having applied thereto a required camber angle (CA) and slip angle (SA), is contacted against a rotatably driven rotating drum (1) having embedded therein a three-component force sensor (measurement unit 3) capable of measuring ground contact pressure (P), width direction shear stress (τx), and circumferential shear stress (τy) (properties) of the tire (T). The rotating drum (1) and tire (T) are rotated and the tire (T) is passed over the three-component force sensor (3) multiple times. The tire (T) properties are measured multiple times, and the tire circumferential direction position of each measurement point is identified. A ground contact pressure distribution, width direction shear stress distribution, and circumferential shear stress distribution in a contact region of the tire (T) with the rotating drum (1) are obtained by repeating measurement and identification while displacing the tire (T) along the rotation axis of the rotating drum (1).

The invention relates to container carriers that are used in ports and terminals. The invention comprises a method, an apparatus and a computer program product for moving a container carrier. The method comprises the steps of lowering the container, causing to disengage the weight of the container and the spreader off the wheels, tuning the wheels to an orientation suitable for a carousel or skew maneuver, lifting the container and starting a carousel or skew maneuver.

A wheel assembly for a vehicle. The wheel assembly including: a rim; a tire operatively connected to the rim; one or more movable assemblies extending in a radial direction from the rim towards an outer portion of the tire; and potential energy storage device operatively connected to the one or more movable assemblies for converting a kinetic energy of the vehicle into potential energy upon movement of the one or more movable assemblies thereby slowing a rotation of the wheel assembly.

A wheel suspension for a motor vehicle is described, in which at least a first and at least a second control arm (1, 2) are coupled in an articulated manner to a wheel carrier (4) carrying a vehicle wheel (3). The wheel suspension has a compensating device (5, 6) for correcting wheel positions, and each control arm (1, 2) has a portion of the compensating device (5, 6) or is connected to a portion of the compensating device (5, 6). The compensating device portions (5, 6) of one wheel are connected to one another by at least one coupling member (7, 8).

A brake mechanism for a caster wheel(s) on an offset rotary mower apparatus wherein a hydraulic line or electric cable is connected at one end to the brake mechanism and at the other end to the tractor for remote control operation of the brake mechanism. The brake mechanism which is attached about the vertical caster axis of the caster wheel allows the caster wheel(s) to temporarily become a fixed wheel(s) when needed, assisting in reducing side draft load on the towing vehicle when the offset rotary mower apparatus is on steep slopes and enabling the offset rotary mower apparatus to be backed-up on the side slope of a ditch.

The invention discloses a stone remover for a mining dump vehicle, and relates to the technical field of manufacturing mining dump vehicles. The remover comprises rear wheel sets consisting of two tires which are arranged at intervals and fixed supporting seats which are positioned above the rear wheel sets and mounted at the bottom of a vehicle hopper, wherein the fixed supporting seats are hinged with a stone removing rod of which one end is naturally drooped and stretched between the two tires through a first pin roll, the middle part of the stone removing rod is connected with a flexible limiting rope, and the other end of the flexible limiting rope is connected to the fixed supporting seats and a hinge joint is positioned behind the first pin roll. Compared with the prior art, the stone remover disclosed by the invention can solve the problems that the stone removing effect of the stone remover of an existing mining dump vehicle is poor, and because tires are easy to extrude, the abrasion is large.

A steering system control apparatus having a centering unit for resisting off-center movement of the steer wheels of a vehicle and returning them to a selected center position after each such movement. A centering shaft is connected to the steering shaft of a vehicle steering gear for rotational reciprocation therewith and an intermediate rotational position thereof defines a neutral position that is remotely adjustable by a trimming unit to vary the selected center position of the steering system during vehicle operation. A holding force and a return force are applied to the centering shaft by a pressurized cylinder arranged for reciprocal movement relative to a stationary piston.

The invention discloses a tri-axle load distribution control system, and relates to the technical field of automobile control systems. According to the tri-axle load distribution control system, when a limit axle load of a drive axle needs to be enlarged, the pressure of an air bag of an auxiliary axle is decreased to a specified value, the axle load of the auxiliary axle is transferred to the drive axle, the relative pressure in the air bag of the auxiliary axle is controlled, the axle load of the auxiliary load is limited, the problem that a large number of loads of the drive axle are transferred to the auxiliary axle due to a height valve or an ECAS is solved, the service life of the auxiliary axle is prolonged, and tire wear of the auxiliary axle is reduced; the tri-axle load distribution control system has the advantages of being simple in structure, easy and convenient to install, low in production cost and high in production efficiency.

An agricultural work machine having a chassis with an operating direction and a transport system coupled to the chassis. The transport system includes a plurality of wheels including a first wheel and a wheel repositioning system. The wheel repositioning system is operatively connected to the first wheel. The wheel repositioning system is configured to adjust a position of the first wheel in a direction substantially normal to the operating direction while the chassis is moving in the operating direction.

The invention relates to a local auxiliary component for a vehicle, in particular to a vehicle double-tire pressure balancer. The vehicle double-tire pressure balancer is characterized by comprising air guide hoses connected with double-tire inflation nozzles, and the air guide hoses are connected with a pressure safety valve. The vehicle double-tire pressure balancer has the beneficial effects that it can be maintained that double tires of the vehicle are at the working pressure for a long time, the pressure of the double tires can be balanced, safe running of the vehicle is guaranteed, fuel oil is saved, tire abrasion is small, the service life is longer, the structure is simple, installation is convenient, and the vehicle double-tire pressure balancer is a small integrated vehicle double-tire pressure balancing device.