Abstract: A method for cutting to length a strip-shaped profiled member of unvulcanized rubber material by a cutting edge includes the step of providing a speed between the cutting edge and the profiled member to be cut of at least 2.5 m/s during the cutting action. The device for carrying out the method includes a carriage and a tool with a cutting edge fastened to the carriage. The carriage has an acceleration path, defined between a rest position of the carriage and a side of the profiled member facing the carriage, of between 0.2 and 1 m. The carriage has a deceleration path, defined between an oppositely arranged side of the profiled member and an end position of the carriage, of at least 0.1 m.

Abstract: The invention relates to an adhesive substance for improved adhesion between a vulcanizable polymer and a metallic reinforcing carrier.The use of an adhesive substance with the following structure is proposed in order to produce an improved adhesion between rubber and a metallic reinforcing carrier:X--(R).sub.n --(Ar).sub.i --(R).sub.m --Y,whereinX: --SH; --Si(Cl).sub.3 ; --Si(OR.sub.1).sub.3 ; --COOHwith R.sub.1 : alkyl remainder (branched and unbranched), particularly --CH.sub.3 ; --C.sub.2 H.sub.5 or --C.sub.3 H.sub.7 ;R: --CH.sub.2 --; --CF.sub.2 --; wherein 0.ltoreq.n,m.ltoreq.12, or--CH.sub.2 --CO--NH--CH.sub.2 --; --CF.sub.2 --CO--NH--CF.sub.2 --; --CH.sub.2 --CO--NH--CF.sub.2 --; --CF.sub.2 --CO--NH--CH.sub.2 --, wherein 0.ltoreq.n,m.ltoreq.4Ar: aromatic and/or heteroaromatic system, comprised of one or several of the following molecules:benzene, phenylene, aniline, thiophene, pyrrole, furane,with or without substituentswherein 0.ltoreq.i.ltoreq.

Abstract: A complete vehicle wheel assembly includes a wheel with wheel rim having two opposed circular rim flanges and a tire having beads secured at the circular rim flanges. Each one of the circular rim flanges has a tubular hollow chamber with an annular opening. The tubular hollow chamber has a square or rectangular cross-section, and the annular opening has a width such that the bead is insertable into the tubular hollow chamber only in a rotated or deformed state after insertion of the bead, a remaining free space in the tubular hollow chamber is filled with a liquid, hardenable material.

Abstract: A pneumatic vehicle tire has a carcass with at least one radial ply and beads having bead cores, whereby the carcass is anchored to the bead cores. A multi-ply belt is positioned radially outwardly on the carcass, and a tread is positioned radially outwardly on the belt. Sidewalls extend between the tread and the beads. The sidewalls have a first portion extending from the beads outwardly at an angle of 0% to 20% relative to the axial direction of the tire. The sidewalls have increased stiffness within the area of 50% to 90% of a tire height measured in a direction from the bead to the tread. The area of 50% to 90% prevents the sidewalls from touching the road surface when the tire is deflated and compressed.

Abstract: Device and process for constructing a carcass and for preshaping an unvulcanized rubber tire includes a preshaping device. An axially adjustable hollow, cylindrical body associated with the preshaping device has a radially outermost surface. An adjustment device capable of adjusting an axial position of the cylindrical body between an operating position and a rest position is provided. A second body having a radially outermost surface is adapted to form a substantially cylindrical, sealed construction surface with the radially outermost surface of the cylindrical body in the operating position. The preshaping device, in the operating position, is positioned axially inside the cylindrical body in a same axial position as the cylindrical body to enable positioning the carcass without the carcass being affected by the preshaping device.

Abstract: Vehicle tire and a metal sheet mold plate for forming the vehicle tire having at least one axial end section includes a tread that includes sipes running substantially axially in at least one of the axial end sections when viewed from the top (i.e., perpendicular to the tread surface). The sipes are corrugated to form corrugated ridges and valleys that are substantially straight lines diagonally inclined in an oblique plane parallel to the substantially axially running sipes. The substantially axially running sipes may include a first set of sipes and a second set of sipes. The corrugated ridges and valleys of the first set of sipes are oriented, with regard to a radially outward direction, to extend axially inwardly toward (i.e., toward a axial center of the tire). Conversely, the corrugated ridges and valleys of the second set of sipes are oriented, with regard to the radially outward direction, to extend axially outwardly (i.e., away from the axial center of the tire).

Abstract: Device and process for detecting defects in an arrangement of reinforcing members in casing plies in a sidewall region of at least one of an unvulcanized tire blank or a vulcanized pneumatic vehicle tire to be tested. The reinforcing members may include a magnetizable material and the device may include a support device that rotatably supports the at least one of the unvulcanized tire blank or the vulcanized pneumatic vehicle tire in rotation around a rotational axis and at least one sensor that measures magnetic field intensities in a heterogeneous magnetic field resulting from inductions generated by the defects in the arrangement of the reinforcing members moving through the heterogeneous magnetic field. The at least one sensor may be positioned in a radial measuring position in a radial region of the sidewall.

Abstract: A vibration damper comprises an attachment member and a damping mass connected by an elastomer spring with a plurality of elastic coupling elements. The coupling elements are inclined relative to the direction of the spacing between the damping mass and the attachment member. The inclination angle of the coupling elements is adjusted so that the natural vibrational frequency of the vibration damper in the spacing direction can be tuned largely independently from that in a direction perpendicular to the spacing direction.

Abstract: The invention relates to an air spring having a composite flexible member 4 in which cords 22 are embedded as a reinforcement. The cords 22 have cord angles to the peripheral direction of the flexible member 4 over the longitudinal length of the flexible member. The flexible member 4 comprises two flexible-member components (12a, 12b). The cord angle a in the first flexible-member component 12a is different from the cord angle .beta. in the second flexible-member component 12b. A method for making such an air spring is also disclosed.

Abstract: The invention pertains to a sulfur cross-linkable unvulcanized rubber mixture for the manufacture of treads, in particular for winter tires. The rubber mixture contains polyisoprene, polybutadiene and styrene-butadiene copolymer as well as further fillers and additives. In order to prepare vehicle pneumatic tires which exhibit excellent traction on ice and snow while at least maintaining their wet-gripping ability, the rubber mixture preferably contains, relative to 100 parts of total rubber, 20-100 parts by weight cis-1,4 polyisoprene; 0-65 parts by weight polybutadiene with a cis content of greater than about 90 mole %; and 0-65 parts by weight solution-polymerized styrene-butadiene copolymer; as well as 65-120 parts by weight silicic acid.

Abstract: A vehicle tire for a motor vehicle has a carcass, a belt, and tire tread. A device for generating data for determining tire-road adhesion or friction between the footprint of the vehicle tire and the road surface is provided. The device includes at least one magnetic sensor connected to a evaluation device. The at least one magnetic sensor has individual magnetic sensor elements forming cooperating sensor element pairs. The device also includes a magnetic field arranged in the belt and generated during tire manufacture by partial magnetization of the belt. The at least one magnetic sensor is arranged in at least one lug of the tire tread.

Abstract: The invention relates to an electric brake system for a motor vehicle and a method for operating the same. In conventional electric brake systems, the energy consumers (6, 8a, 10a, 14b, 16b, 30a, 30b) are connected to the voltage source (24a, 24b) when a switch-on signal is applied. This has the problem associated therewith that, when the switch-on signal is absent for any particular reason, the energy consumers (6, 8a, 10a, 14b, 16b, 30a, 30b) can be disconnected from the voltage source (24a, 24b) during operation of the motor vehicle. This problem is avoided in that the energy consumers (6, 8a, 10a, 14b, 16b, 30a, 30b) remain connected to the voltage source independently of the presence of the switch-on signal. A disconnection of the voltage source from the energy consumers (6, 8a, 10a, 14b, 16b, 30a, 30b) is only triggered by the computer unit (6, 30a, 30b) by driving an ignition-switch device 28.

Abstract: A process and device for starting a motor vehicle having a braking system in which a brake force is at least partially supplied by at least brake energy storage devices. Prior to starting a motor vehicle, the vehicle is initially switched into a non-drivable state in which the vehicle is disabled from movement. A charging state of each brake energy storage device may be checked to ensure an adequate charging state. If the charging state of at least one of the brake energy storage devices is greater than or equal to a predetermined minimum charging state, the vehicle may be switched into a drivable state and, thus, operable by the driver.

Abstract: Device and method for attaching the electronic module to a vehicle tire rim. The device may include a spring element having a fastening wing and a clamping wing. A valve body may be coupled to the fastening wing and the clamping wing may be coupled to the electronic module to clamp the electronic module against the vehicle tire rim. The method may include coupling a spring element to a drop base of the vehicle wheel rim and clamping the electronic module between the spring element and the drop base.

Abstract: The invention relates to an electric motor having a locking device and a brake actuator for an electric system which includes such an electric motor. The locking brake has a simple configuration and includes a conical ring which is mounted so as to be axially displaceable on the motor shaft of the electric motor of the brake actuator. In a first axial position, the conical ring (26) permits a rotation of the motor shaft (12) in both directions and, in a second axial position, the conical ring is in engagement with the motor shaft (12) and rotates with the latter. In the second axial position of the conical ring (26), a rotation of the motor shaft (12) in one rotational direction leads to the situation that the conical ring (26) is in engagement with the lock ring (24) of the brake actuator (2). The lock ring (24) is fixed so that it cannot rotate relative to the motor shaft (12).

Abstract: A method for manufacturing a tire carcass includes the step of providing a liner of an air-impermeable material. A carcass ply material is prepared by heating and stretching plastic cords and embedding the stretched plastic cords in rubber. A ply of the carcass ply material is placed onto the liner with overlapping leading and trailing ply ends. The overlapping ply ends are heated for returning the stretched plastic cords into an unstretched state. Bead cores are then positioned onto the ply. The lateral edges of the ply are folded over the bead cores. The folded lateral edges and the bead cores are then enveloped by lateral strips.

Abstract: A device for measuring a rotary frequency of a rotating vehicle tire includes a number of first poles uniformly arranged on a circle with a radius R1 on or within a vehicle tire. A first sensor, for sensing the first poles, is stationarily arranged at a distance R2 from a rotational axis of the vehicle wheel. The radii have the following relationship: 0.9 R1<R2<1.1 R1. A computing unit is connected to the first sensor. The first sensor sends first signals to the computing unit when the first poles pass the first sensor. The computing unit determines a first time period between passing of sequential ones of the first poles. The computing unit multiplies a reciprocal value of the first time period by a reciprocal value of the number of the first poles to a multiplication product and supplies the multiplication product as a measure of a first rotary frequency to a user device.

Abstract: A method for determining a longitudinal force acting during tire rotation on a tire mounted on a wheel rim includes the step of determining the torsional deformation of the tire, which is a function of the location of measurement, between a radially inner area of the wheel or the hub and a radially outer area of the tire in at least one non-rotating position. At least two marks are positioned at the wheel on different radii relative to an axis of rotation of the wheel, wherein a radially outer mark is positioned on a radially outer area of the tire. At least two sensors are non-rotatingly arranged in the vicinity of the wheel so as to be positioned on the different radii, wherein a radially inwardly arranged sensor is connected to a steering knuckle and a radially outwardly arranged sensor is connected to a transverse suspension arm of the wheel suspension. For the rotating wheel at least one time period between passing of the at least two marks at the at least two sensors is recorded.

Abstract: Unvulcanized rubber mixture that can be cross linked with sulfur, including: (A) 100 weight parts of total mass of unvulcanized rubber including: about 40 to 100 weight parts of styrene-butadiene-copolymer (S-SBR) that is produced in solution; and (B) relative to the 100 weight parts of total mass of unvulcanized rubber: about 50 to 80 pphr silicic acid, about 3 to 7 pphr silanization agent, about 0.1 to 0.5 pphr tetrabenzylthiuramdisulfide (TBzTD), and about 1 to 3 pphr benzothiazyl-2-cyclohexylsulfenamide (CBS). A vulcanization process, including vulcanizing the unvulcanized rubber mixture. A tire including a tread that is produced from the unvulcanized rubber mixture.

Abstract: The invention relates to a method for providing controlled braking of a motor vehicle and a brake system for carrying out the method. The brake system includes a central unit and brake actuators for each wheel of the motor vehicle. The brake actuators are connected to the central unit. In the central unit, a relative braking-force distribution key is computed at time intervals and is transmitted to the brake actuators. With a braking operation, the absolute braking force for the braking operation is computed in each brake actuator from the corresponding component of the relative braking-force distribution key.