Abstract:
A method and apparatus for detecting, for wheel assemblies on opposite ends of an axle during an alignment angle measurement or inspection process, relative movement or slip between the alignment angle sensor or optical target and the wheel assembly upon which it is mounted. Changes in measurements of invariant characteristics of the solid axle or an associated wheel assembly are observed by an alignment measurement or inspection system as indications of movement or slip between at least one of the alignment angle sensors or optical targets and the associated wheel assembly. Upon detection of a change a measurement of an invariant characteristic, an operator is alerted by the alignment measurement or inspection system to the presence of movement or slip of one or both of the alignment angle sensors or optical targets associated with the wheel assemblies of the axle.
Abstract:
A vehicle wheel service system including a plurality of sensors positioned in proximity to a heavy-duty multi-axle vehicle, to measure angles associated with three or more axles of the vehicle without repositioning the mounting of the sensors after initiating a measurement procedure. Additional sensors, associated with a vehicle reference, such as the vehicle frame axis, are disposed to provide vehicle reference measurement data which is communicated to a processing system. The processing system is configured with software instructions to evaluate the measurement data and to determine various vehicle wheel alignment angle measurements and/or necessary vehicle adjustments for each axle relative to the vehicle reference or to a fixed axle having a determined relationship to the vehicle reference.
Abstract:
A deflection resistant combination slip plate and turn plate assembly for support the steered wheels of a vehicle on a precision planar surface resistant to deflection and distortion. The slip plate and the turn plate are supported on an underlying surface by bearing assemblies, and establish a upper planar surface with the turn plate disposed in a cutout region of the slip plate. Each plate is configured for limited translational movement relative to the base plate surface on which it is supported, while the turn plate is further configured for rotational movement about a central axis. Translational movement of the plates is synchronized. Spacing between the slip plate and turn plate is minimized, and supporting means are provided to maintain the slip plate and turn plate in vertical alignment under load.
Abstract:
A vehicle service or inspection system including a load roller for applying a radial load to a vehicle wheel assembly consisting of a tire mounted to a rim, with at least one sensor for acquiring measurements of acoustical energy generated by the wheel assembly during loaded rotational movement. The vehicle service or inspection system is configured with a programmed processor to evaluate the acquired measurements to provide a measure of tire road noise, identification of tire defects, and/or identification of sources of noise, vibrations, or acoustical energy on the tire surface such as tire flat spots, cupping, bubbles, embedded foreign objects, or other defects. The processor is further configured with software instructions to utilize the acquired measurements to provide a consumer with a figure of merit associated with the acoustics of the tire undergoing testing
Abstract:
An improved vehicle service system having at least one pattern-projecting, machine-vision sensor for acquiring images of objects and surface during a vehicle service or inspection procedure, and which is configured to process acquired images to identify measurements and/or relative three-dimensional locations associated with the vehicle undergoing service or inspection, vehicle components, surface, or objects in the environment surrounding the vehicle. The improved vehicle service system is further configured to utilized the identified measurements and/or relative three-dimensional locations during a vehicle service or inspection procedure.
Abstract:
A method and apparatus for carrying out a set of vehicle inspections including, but not limited to, wheel alignment measurement, brake testing, tire tread depth measurement, tire pressure monitoring, vehicle battery testing, and a review of vehicle diagnostic trouble codes in an efficient manner using a multi-function vehicle service system and a single vehicle service bay or inspection lane. Results of the vehicle inspections are incorporated into customized reports generated for a customer or for a technician, and which may be utilized to obtain approval from the customer to conduct necessary repairs and/or provide beneficial vehicle services.
Abstract:
A method for efficiently operating a vehicle wheel balancing system having a wheel mounting structure upon which a vehicle wheel assembly is mounted for rotation during a measurement or service procedure, and a load roller assembly disposed in operative proximity to the wheel mounting structure for engaging a surface of the vehicle wheel assembly and applying a controlled load there to during rotation. After mounting a vehicle wheel assembly to the mounting structure, the wheel assembly is rotationally driven and a measurement of imbalance is initially acquired and the results displayed to an operator. Subsequently, the load roller assembly is engaged with the still rotating wheel, while measurements of radial forces and/or runout of the wheel are acquired, before the wheel rotation is stopped.