A device and method control dispensing of adhesion-increasing agent of a rail vehicle. At least one wheel speed sensor and/or wheel acceleration sensor and/or wheel torque sensor measures the wheel speed or wheel rotational speed and/or the wheel acceleration of a particular wheel and/or the wheel torque acting on the wheel. A measuring unit determines the vehicle speed and/or the acceleration in the vehicle longitudinal direction of the entire rail vehicle. A calculation unit ascertains the ratio of the wheel speed or wheel rotational speed of the wheel and the speed of the rail vehicle and/or the ratio of the wheel acceleration and the acceleration in the longitudinal direction of the rail vehicle and/or the ratio between the target torque and the actual torque acting on the wheel; a change in ratio is used to control dispensing of the adhesion-increasing agent.

A liquid sprayer control method to induce drift driving for a vehicle, wherein the control apparatus includes a liquid sprayer attached to a tank of fluid, which in turn has two small hoses aiming towards the rear tires of a vehicle. With a simple push-button controller at the driver’s command, the driver sprays liquid onto the rear tires, coating them for an effective loss of traction of the rear tires, allowing the driver to induce a drift, or intentional loss of rear traction of the vehicle for closed-course exhibition or educational purposes.

Device to avoid the aquaplaning problem on a vehicle (10), the device being applicable at least on the drive wheels (28) of the vehicle and including a tank (12) of fluid under pressure that is connected to a plurality of fluid ejectors (26) associated with the respective wheels and suitable to shoot jets of pressurized fluid onto the road surface, and sensors (18) suitable to detect the conditions of the road surface to actuate the fluid ejectors. The fluid ejectors (26) are injector nozzles controlled by a central processing unit (CPU), which receives the signals from the sensors (18), and are operated in a manner coordinated with the physical position of the respective wheel so as to be continually oriented in the direction of travel of the same wheel.

Methods and systems for operating a vehicle are provided. In one example, a method for operating a vehicle may include flowing compressed gas selectively through distinct orifice sizes depending on an operating condition of the vehicle. In another example, the vehicle may be a rail vehicle. In one example, the compressed gas may include compressed ambient air, and where the compressed gas is selectively delivered toward an upstream of a vehicle wheel riding on a rail via a nozzle. In another example, the compressed gas may be selectively delivered through a first orifice and not a second orifice to the nozzle during a first condition, and delivered through the second orifice and not the first orifice during a second condition different from the first condition.

A system and method herein relate to vehicle control by adjusting a torque distribution of the vehicle. The system includes a first motor configured to provide a torque to a first wheel, and a delivery system configured to controllably apply a traction control compound to a route on which the first wheel is configured to travel. The system also includes a controller circuit having one or more processors. The controller circuit is configured to control the delivery system to apply the traction control compound to the route based on a monitored temperature of the first motor.

The invention relates to a screening element for screening and transporting grit material, for applying to a sanding device of a sanding apparatus for a vehicle. The screening element includes a plate element provided with a shaft-coupling mechanism, at least one through-opening, and at least one lug. The shaft-coupling mechanism is designed to couple the screening element to a shaft device of a rotary feeder of the sanding device. The through-opening is arranged in the plate element and is designed to guide grit material through the plate element. The lug extends transversely in relation to a main surface of the plate element, away from the plate element.

A metering device is configured for fitting into a sand-spreading system of a rail vehicle. The metering device has a housing block, in which a sand path extends from a sand-feeding funnel into a vertical sand blow-out channel via a sand-mixing channel, which rises at an inclination from a sand-holding space to a sand deflection space. A pushing air tube is provided for producing an air flow that conveys spreading sand. The pushing air tube protrudes into the sand-mixing channel coaxially from the bottom. A nozzle insert is detachable inserted into an inflow channel, which leads into the sand deflection space from above. The nozzle insert is provided for producing an air jet directed downward into the sand blow-out channel. The amount of scattering sand that is discharged can be metered more precisely and the susceptibility of the metering device to wear is improved.

A method for controlling a device for metering granular material and a metering device for metering granular material comprises a feed for the granular material from a container into a metering chamber. A metering piston can be actuated by a control device such that a gap between the feed and the metering chamber is opened by a predefined first distance and a second distance which is greater than the first distance. At least one sensor is arranged in a delivery line leading away from the metering chamber and is connected to the control device so that the metering piston can be actuated for a predefined duration such that the gap between the feed for the granular material and the metering chamber can be opened by the second distance if a blockage of the granular material is detected by the at least one sensor, so that the blockage is dispersed.

A method for operating a tractive vehicle and a vehicle combination are disclosed. A tractive vehicle includes a first friction brake device for generating a first stopping braking-force, a traction device for generating a tractive force and a control device for controlling at least the traction device. The method includes a step whereby the traction device is activated if a first undesired kinematic state is detected. Activation of the traction device would take place in such a way that a tractive force, counteracting the first undesired kinematic state, is generated and provided for deceleration to a standstill and/or for holding the tractive vehicle at a standstill.

A vehicle (100) comprising a plurality of wheels (106a, b) and an apparatus on a wheeled vehicle are disclosed. The vehicle, or apparatus, comprises a control system arranged to issue a signal in the event of determining that one or more wheels of the vehicle has lost, or is at risk of losing, frictional contact with a road surface (104). The vehicle, or apparatus, further comprises a gas source arranged to supply a burst of gas upon said signal being issued. At least one gas outlet (112) is connected to said gas source and is arranged to direct said burst of gas so as to clear water and/or debris from the road surface in front of at least one of the wheels.