75results about How to "Improve cornering ability" patented technology

A vehicle curve speed control system (10) adapted for use with a vehicle (12) having an operator (14), includes a map database (16) representing a current vehicle path, and a locator device (20) communicatively coupled to the database (16) and configured to determine the location of the vehicle (12) on the path. The system (10) further includes a controller (36) configured to identify approaching curve points of a curve (18a) in terms of curvature or radius, and determine a desired speed profile based on operator preference and/or vehicle characteristic input. An acceleration profile is determined, based on the current vehicle speed, and desired speed profile. An acceleration/deceleration command at the present control loop is modified towards achieving an optimal curve speed, and is delivered to either a brake or acceleration module (40,42) to automatically accelerate or decelerate the vehicle (12) accordingly.

The invention discloses a self-adaptive conduit robot, relating to the field of robot technology, particularly relating to the field of technology about a robot used to test, clean and maintain conduits. The invention comprises a machine body. At least three sets of drive units are evenly arranged along the periphery of the machine body; a slide shaft is arranged on the periphery of the machine body, and both ends of the slide shaft are connected with the machine body respectively; a securing fitting is welded at the middle part of the slide shaft; two slide blocks are coated on the slide shafts on both sides of the securing fitting respectively. Two pressure springs are coated on the periphery of the slide shaft arranged between the securing fitting and the slide block; two reset springs are coated on the periphery of the slide shaft arranged at the outer side of the securing fitting. Both ends of each first connecting rod are connected with a slide block and a roller respectively, and both ends of a second connecting rod are connected with the end part of the slide shaft and the first connecting rod respectively. A power control device is arranged on each group of machine bodies. The invention has sound bearing capacity, and is applicable to conduit work under various environments; and high use value and easy assembly and disassembly are achieved.

A drive power from an engine is transferred to front wheel drive systems and rear wheel drive systems via a central differential. A torque distribution ratio between front and rear wheels defined by the central differential is set to one for the front wheels being made too much thereof, with a motor generator being coupled to the rear wheel drive systems. In response to detection signals from various sensors for detecting the running conditions, a drive power control unit controls the additional torque from the motor generator toward the drive torque or regenerative braking torque side, thereby changing the torque distribution ratio between the front and rear wheels. Thus, a degree of flexibility in making a change in the torque distribution between front and rear wheels or between right and left wheels is increased, thereby realizing an all-wheel drivable hybrid vehicle which provides further improved running performance.

A tire tread comprising: a plurality of elements in relief (rib and/or block) comprising a contact face intended to come into contact with the roadway during travel and lateral faces, the intersection of each lateral face with the contact face forming a ridge, a plurality of cutouts in the form of grooves and/or incisions, said cutouts being defined by opposing main faces, each tread pattern element being formed with at least one rubber mix (referred to as “base mix”), and characterized in that, viewed in section in a plane containing the thickness of this tread, at least one face defining at least one cutout is formed at least in part with a rubber mix, referred to as “covering mix”, the base mix having a grip on wet ground which is lower than the grip of the covering mix on the same ground.

A pneumatic tire according to the present invention includes blocks on its tread which are segmented by plural circumferential grooves 3 extending along a tire circumferential direction and plural lateral grooves 5 extending along a tread width direction. Circumferential sipes extending along the tire circumferential direction are provided in the blocks. Inside circumferential sipes extend straight along a tire radial direction and outside circumferential sipes extend along the tire radial direction in zigzag patterns. According to the present invention, a handling performance, especially, a cornering performance can be improved regardless of road surface conditions.

In a non-pneumatic tire, central portions in an extension direction of first elastic connecting plates (21) and central portions in an extension direction of second elastic connecting plates (22) are spaced from each other in a tire width direction (H) by a distance of 0.25 to 0.9 times an outer tube width (W1) serving as a size in the tire width direction (H) of an outer tubular body (13), edges of a first side in the tire width direction (H) of first end portions (21a) of the first elastic connecting plates (21) are disposed at the same positions in the tire width direction (H) as edges of the first side in the tire width direction (H) of the outer tubular body (13) or disposed inside in the tire width direction (H) of the edge of the first side in the tire width direction (H) of the outer tubular body (13) within a distance of 0.1 times the outer tube width (W1) or less, and edges of a second side in the tire width direction (H) of first end portions (22a) of the second elastic connecting plates (22) are disposed at the same positions in the tire width direction (H) as an edge of the second side in the tire width direction (H) of the outer tubular body (13) or disposed inside in the tire width direction (H) of the edge of the second side in the tire width direction (H) of the outer tubular body (13) within a distance of 0.1 times the outer tube width (W1) or less.

A pneumatic tire comprises at least one carcass ply of textile cords and a belt comprised of two cross belt layers containing textile cords arranged at a cord inclination angle of 10-45° with respect to the equatorial plane, in which a difference of cord inclination angle between the two cross belt layers with respect to the equatorial plane of the tire is within a range of 5-35° in the widthwise direction, and is mounted onto at least either left-side or right-side front wheel of a four-wheeled vehicle.

The invention relates to a tire having at least one component (e.g. tread) of a rubber composition comprised of a functionalized styrene/butadiene elastomer containing internal silanol and/or siloxy group(s) therein with pendent silanol and/or alkoxy groups of a polymodal (e.g. bimodal) molecular weight distribution and a dispersion therein of a synthetic amorphous silica (e.g. aggregates of precipitated silica) and styrene/alpha methylstyrene resin. In one aspect, said rubber composition may contain at least one additional diene-based elastomer. In another aspect, at least a portion of said synthetic amorphous silica may be in a form of pre-treated precipitated silica aggregates which have been pre-treated to reduce hydroxyl groups on their surface prior to blending with said functionalized styrene/butadiene elastomer.

Performance on snowy roads is improved. Provided is a pneumatic tire, of which the mounting orientation on a vehicle is indicated. An outer middle land part is formed between a first major groove and a second major groove. The first major groove has first portions and second portions alternately formed in the tire circumferential direction, the second portions being wider than the first portions. The outer middle land part is provided with a plurality of middle inclined grooves not directly interconnected with either the first major groove or the second major groove, a plurality of outer middle lug grooves connecting the second portions of the first major groove and the middle inclined grooves, and inner middle lug grooves connecting the middle inclined grooves and the second major groove. The outer middle lug grooves are provided to different positions in the tire circumferential direction than the inner middle lug grooves.

The invention discloses a system and method for improving bend performance of a self-adaptive cruise system. The system for improving the bend performance of the self-adaptive cruise system comprisesan information sensing unit, an information decision unit and an information executing unit; the information sensing unit comprises a target detection module, a vehicle information monitoring module and a steering control monitoring module; the target detection module obtains motion state information of a vehicle and a preceding vehicle and road information; the vehicle information monitoring module obtains vehicle motion related information of the vehicle; the steering control monitoring module is used for obtaining whether a steering wheel of the vehicle has steering angle information; the information decision unit determines an expected accelerated speed, an expected speed and torque information of the vehicle according to information obtained by the information sensing unit; and the information executing unit comprises a vehicle speed control executing module and a steering control executing module and executes cornering longitudinal and cornering transverse control on the basis ofthe expected accelerated speed, the expected speed and the torque information which are output by the information decision unit. According to the system and method for improving the bend performanceof the self-adaptive cruise system, the safety, comfort and rapidness of the self-adaptive cruise system in the cornering process can be enhanced.

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.

The invention discloses a cornering longitudinal vehicle speed control method and device of an adaptive cruise system and a computer-readable storage medium. The method includes the steps that in response to the fact that a front vehicle tracked by a current vehicle is always kept in the field of view of the current vehicle, the cornering speed of the current vehicle is controlled to meet the formula V=Min (the speed of the tracked front vehicle, the corner speed limit value, and the set cruising speed of the current vehicle); in response to the fact that the front vehicle tracked by the current vehicle disappears and no new tracking target is recognized, the cornering speed of the current vehicle is controlled to meet the formula V=Min (the instant speed of the current vehicle when the front vehicle disappears, the corner speed limit value, the maximum cornering speed value of the current vehicle, and the set cruising speed of the current vehicle); in response to the fact that the front vehicle tracked by the current vehicle disappears and a new tracking target is recognized, the cornering speed of the current vehicle is controlled to meet the formula V=Min (the instant speed of the current vehicle when the front vehicle disappears, the corner speed limit value, the speed of the newly recognized tracking target, the maximum cornering speed value of the current vehicle, and theset cruising speed of the current vehicle). The method can improve the safety, comfort and rapidity of the adaptive cruise system in the cornering process.

The invention relates to a multi-cavity pipe for hole opening in a partition wall for flexible transmission. The multi-cavity pipe comprises a pipe body and is characterized in that at least two channel cavities distributed along the axis of the pipe body are formed in the pipe body, the channel cavities are separated from each other through the partition wall. Each channel cavity comprises a transmission cavity and at least one perfusion cavity, wherein the at least one perfusion cavity is communicated with the transmission cavity through at least one hole formed in the partition wall, a connecting driving flexible shaft which is used for transmitting the torque generated by a power source to a rotating functional piece penetrates through the transmission cavity, the power source is located at the near end of the connecting driving flexible shaft, and the rotating functional piece is located at the far end of the driving flexible shaft. The temperature rise inside a catheter can be effectively controlled, and the risk that particles and excessive perfusion fluid enter the human body and increase the burden of organs is reduced, so that the safe and effective long-term operation ofthe catheter is achieved.

A motorcycle tire for running on rough terrain has a block pattern that includes major groups arranged circumferentially of the tire at intervals, and minor groups arranged between the major groups. The major group consists of four blocks arranged axially of the tire and each connected to the next with a tie bar, wherein each is defined as having the centroid of its top surface within a tread center region having a developed width of 60% of a developed tread width, and angles (θ1a) of straight lines drawn between axially adjacent centroids are not more than 10 degrees with respect to the tire axial direction. The minor group consists of two or three blocks connected with a tie bar, and angles of straight lines drawn between axially adjacent centroids of top surfaces of the blocks are 15 to 80 degrees with respect to the tire axial direction.

A vehicle adaptive steering control apparatus includes a front wheel steering mechanism having a right wheel steering portion and a left wheel steering portion. A left front wheel rotatably is coupled to the left wheel steering portion. A right front wheel rotatably coupled to the right wheel steering portion. A controller in electronic communication with a steer-by-wire steering wheel assembly and the front wheel steering mechanism operates the front wheel steering mechanism to turn the left front wheel and the right front wheel in accordance with Ackerman steering geometry. The controller is also configured to calculate toe angle adjustments for the right wheel steering portion relative to the left wheel steering portion and make the toe angle adjustments to right wheel steering portion and the left wheel steering portion during turning and steering movements effected by the right wheel steering portion and the left wheel steering portion.

A pneumatic tire 1 is provided in a tread portion 2 with a circumferential land region 6 provided with transverse sipes 15 extending across the entire width of the circumferential land region. Each of the transverse sipes 15 comprises an arc-shaped first portion 18 convexed toward one side in the tire circumferential direction and an arc-shaped second portion 19 convexed toward the other side in the tire circumferential direction and connected with the first portion 18 so as to have a wavy configuration. The transverse sipes 15 include a first transverse sipe 16 of which first portion 18 is deeper than the second portion 19 thereof, and a second transverse sipe 17 of which second portion 19 is deeper than the first portion 18 thereof.

The invention provides a double-cylinder active shock absorber. The other end of a compression valve component (9) at the tail of a round cylinder is communicated with a one-way valve (11) by virtue of an oil pipe; the one-way valve (11) is connected with an oil passage (5) in the round cylinder by virtue of a connecting oil pipe (12) which penetrates through an electromagnetic valve component (13); the periphery in the round cylinder is provided with a piston rod II (3); the middle of the periphery of the piston rod II (3) is provided with a dust-proof component (6); the lower part of the periphery of the piston rod II (3) is provided with a spring (7); the tail of the periphery of the piston rod II (3) is provided with a movable piston (10); the piston rod II (3) is connected to a movable piston (10); the spring (7) is arranged between the dust-proof component (6) and the movable piston (10). The double-cylinder active shock absorber is good in creation comfortability and good in turning performance.

A hot and cold composite formed square and rectangular steel tube and a production method for the same are provided. The radius of an outer corner of the square and rectangular steel tube meets the following conditions: when t is less than or equal to 6 mm, R is greater than 0 and less than 2.0 t; when t is greater than 6 mm and less than or equal to 10 mm, R is greater than 0 and less than 2.5 t; when t is greater than 10 mm, R is greater than 0 and less than 3.0 t, wherein t is the wall thickness of a straight tube part of the square and rectangular steel tube; R is the radius of each of the outer corners of the four corners of the square and rectangular steel tube; and the wall thickness of each corner of the square and rectangular steel tube is between 1.0 t and 1.8 t.