Abstract:
A vehicle tire changing system is configured with sensors to acquire dimensional information associated with tire service tools and a vehicle wheel assembly. The sensors acquire dimensional information associated with at least one feature of the vehicle wheel assembly or a tire service tool. The vehicle tire changing system is configured to utilize the acquired dimensional information to automate and monitor the movement of an associated tire service tool and optionally, to store or convey the acquired dimensional information for use by other vehicle service systems.
Abstract:
A method and system for a wheel assembly service system are provided. The system includes a rotatable spindle configured to receive a wheel assembly wherein the wheel assembly includes at least a rim and a tire. The system further includes a load device configured to apply a load to the tire during a rotation of the wheel assembly on the spindle, and a controller configured to determine a first force variation vector of the wheel assembly, initiating rotation of the tire with respect to the rim, determine a second force variation vector of the wheel assembly with the tire rotated with respect to the rim, and determine a force variation of at least one of the tire and the wheel using the first and second force variation vectors. The system also outputs at least one of the determined force variation vector values.
Abstract:
A method for reducing imbalance correction weight usage during a balancing operation of a vehicle wheel assembly. An imbalance of the vehicle wheel assembly is initially determined and utilized together with an established acceptable threshold of imbalance for the vehicle wheel assembly to compute a reduced imbalance value having a magnitude less than the determined imbalance. Using the reduced imbalance value, correction weight amounts and placement locations for application to the vehicle wheel assembly are identified.
Abstract:
A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed on a plurality of target surfaces. Images of the optical target elements are acquired by an imaging system, together with target identifying indicia, and utilized together with previously stored target characterization data to determine a spatial orientation of the optical target assembly and an alignment of the vehicle wheel onto which it is secured.
Abstract:
A machine vision vehicle wheel alignment system optical target assembly which incorporates an adaptor for attachment of an optical target to a vehicle wheel assembly. The adaptor includes a circular sinusoidal edge for seating in a non-determined position against surfaces of a vehicle wheel assembly, and a pair of pivoting arm assemblies capable of independent movement which are configured to position tire hooks for gripping the tread surfaces of a tire mounted to the wheel rim. Forces exerted between the pivoting arms are transferred to the tire hooks to hold the optical target assembly in contact with the wheel assembly surface. The optical target is integrated into the adaptor, and maintained in a stationary relationship to the wheel assembly thereby during a vehicle wheel alignment procedure.
Abstract:
A machine vision vehicle wheel alignment system optical target assembly incorporating an adaptor for attachment of an optical target to a vehicle wheel assembly. The adaptor includes at least three contact points for abutment against surfaces of a vehicle wheel assembly, and an attachment mechanism configured to grip surfaces of a tire mounted to the wheel rim to hold the optical target assembly in contact with the wheel assembly surface. The optical target is secured to the adaptor, and maintained in a fixed relationship to the wheel assembly thereby during a vehicle wheel alignment measurement procedure.
Abstract:
A machine vision vehicle wheel alignment system configured to measure non-traditional vehicle wheel alignment angles and to determine dynamic behavior of a vehicle suspension system by observing optical targets or visible features, attached to points of interest on the vehicle body or vehicle wheels. The vehicle wheel alignment system characterizes the suspension geometry with respect to the body of the vehicle and to a rolling surface by measuring, in three-dimensions, points and/or angles on the vehicle body as well as the vehicle wheels, enabling measurement of specific non-traditional vehicle parameters, including wheel assembly braking force and lateral force moment arms.
Abstract:
A method for measuring the imbalance characteristics of a rotating body, and for determining if an application of at least one imbalance correction weight in only one of two identified imbalance correction weight planes is sufficient to reduce the measured imbalance characteristics of the rotating body to an acceptable residual imbalance level.
Abstract:
The present invention relates to on-car brake lathes configured for resurfacing brake rotor components, and in particular, to improved on-car brake lathes configured with a controlled variable speed drive system.
Abstract:
A method for providing a centering check for a rotating body mounted on a wheel balancer which is based on measuring at least one imbalance parameter or tire runout of the rotating body. The rotating body is mounted on a spindle of the wheel balancer and an imbalance parameter or tire runout measurement taken. The mounting of the rotating body on the spindle is then altered, and a second measurement of the imbalance parameter or tire runout is taken. A processor in the wheel balancer utilizes the first and second measurements together with a threshold to provide an indication of off-center mounting of the rotating body one the spindle.