A tire (10, 10′) for rotation about an axis of rotation (12) has a first wall portion (14) having a partially conical form, and a second wall portion (16) integrally formed and interconnected with the first wall portion at a transition region (18) so as to define an annular recess. A closure-limiting configuration includes a number of tubular reinforcing elements (20) arrayed around the annular recess. Each tubular reinforcing element has a wall with a closed cross-section. The tubular reinforcing elements (20) are spaced around the annular recess such that deformation of a compressed region of the tire under a load causes a change in shape of the tubular reinforcing elements in the compressed region.

A tire for a vehicle includes a tire body having a circumferentially extending tread portion with an outer surface and an inner surface. First and second sidewalls are joined to the tread portion, and the first and second sidewalls terminate in first and second edges, respectively, and are configured to be secured within a flange of a rim of a wheel. In addition, the tire includes a tire insert comprising a circumferential hoop of resilient material and positioned adjacent to the inner surface of the tread portion. The tire insert may have an arcuate cross section and a width that extends across from the first sidewall to the second sidewall. The resilient material of the tire insert may comprise spring steel of a steel alloy and be in a state of compression.

It is an object of the present invention is to smoothen air flow at the time of vibrations of the diaphragm, and to suppress variations in acoustic characteristics. Since the inclined surface 37c of the washer 37, which forms the air flow channel 50, is an inclined surface having a diameter gradually reduced with distance from the diaphragm 35 in the axial direction of the movable iron core 36, compared with the conventional step-shaped air flow channel having vertical surfaces, air flow in the air flow channel 50 can be smoothened. Therefore, disturbance in air flow is not easily generated in the air flow channel 50, and variations in acoustic characteristics of the horn apparatus 10 can be suppressed.

A tire for an agricultural vehicle, and in particular its tread, which aims to increase its traction capability in the field on loose ground. The tire having a nominal section width L, a central tread portion (211), centred on an equatorial plane (E) of the tire and having an axial width L1 at least equal to 0.15*L and at most equal to 0.35*L, has circumferentially distributed tread pattern elements (221), which are separated in pairs by transverse voids (231) forming an angle at least equal to 30° with the circumferential direction (XX′), and the central tread portion (211) has a local volumetric void ratio TEVL1, defined as being the ratio between the volume VC1 of the transverse voids (231) and the total volume V1 of the central tread portion (21), between the bearing surface (24) and the tread surface (25), is at most equal to 15%.

Systems and methods implemented in algorithms, software, firmware, logic, or circuitry may be configured to process data to determine whether an object external to an autonomous vehicle is a person (e.g., such as a pedestrian) or other classification (e.g., such as a vehicle), and may be further configured to determine a position of the person relative to the autonomous vehicle. Logic may be configured to direct acoustic energy (e.g., via vehicular acoustic beam-forming) to an object external to the autonomous vehicle as an audible acoustic alert. The vehicle-related acoustic beam may be directed to a driver in another vehicle. Logic may be configured to track the motion of external objects, such as a pedestrian crossing from one side of the street to the other, and may correspondingly steer the direction of the vehicle-related acoustic beam(s) to track the person's movement.

An EV driving sound control system may include a sound output device of generating a driving sound of an EV vehicle; a torque measurement sensor of measuring a torque of a motor in the EV vehicle; an indoor noise measurement sensor of detecting a noise of the EV vehicle; and a signal processing controller for controlling the sound output device to reach a target tone by receiving signals from the torque measurement sensor and the indoor noise measurement sensor, wherein the signal processing controller extracts and outputs only the acceleration feeling sound component from an engine sound upon acceleration, and masks high-frequency noise upon deceleration by the sound output device, by use of the traveling information related to the EV vehicle inputted from the CAN communication in real time and the signals inputted from the indoor noise measurement sensor and the torque measurement sensor.

A tire for positioning a vehicle on a surface includes a first sidewall, a second sidewall and a tread extending between the first sidewall and the second sidewall. The tread includes a first pavement bar and a first plurality of lugs disposed between the first sidewall and the first pavement bar and a second plurality of lugs disposed between the second sidewall and the first pavement bar. The tread includes a first lateral shape at a first inflation pressure so that the first pavement bar touches the surface without the first plurality of lugs or the second plurality of lugs contacting the surface. The tread comprises a second lateral shape at a second pressure less than the first pressure so that the first plurality of lugs, the first pavement bar and the second pavement bar contact the surface.

An EV driving sound control system may include a sound output device of generating a driving sound of an EV vehicle; a torque measurement sensor of measuring a torque of a motor in the EV vehicle; an indoor noise measurement sensor of detecting a noise of the EV vehicle; and a signal processing controller for controlling the sound output device to reach a target tone by receiving signals from the torque measurement sensor and the indoor noise measurement sensor, wherein the signal processing controller extracts and outputs only the acceleration feeling sound component from an engine sound upon acceleration, and masks high-frequency noise upon deceleration by the sound output device, by use of the traveling information related to the EV vehicle inputted from the CAN communication in real time and the signals inputted from the indoor noise measurement sensor and the torque measurement sensor.

In at least one embodiment, an apparatus for generating a simulated vehicle sound is provided. At least one parameter module receives a first driver throttle signal and to transmit a first input signal indicative of a first simulated vehicle sound. An engine sound generator block audibly generates a first simulated vehicle sound in response to the first input signal. An engine sound removal block is operably coupled to a microphone that receives a first microphone input signal. The first microphone input signal includes first environmental noise associated with a vehicle exterior environment and the first simulated vehicle sound. The engine sound removal block is configured to filter the first simulated vehicle sound from the first microphone input signal to determine the first environmental noise. The engine sound generator generates a second simulated vehicle sound that is louder than the first environmental noise.

An agricultural tool used to form furrows includes a generally cylindrical support and a plurality of tires. Each tire includes a sole by way of which the tire is mounted on the support, a tread opposite the sole (3) and two sidewalls that connect the tread to the sole. The sole, the tread (5) and the sidewalls jointly form a deformable casing. The tread of at least one of the plurality of tires has a generally domed shape. The sidewalls of this tire are generally inclined radially. The domed shape of the tread and the inclination of the sidewalls are such that the deformation of the casing urges the sole axially outward.