Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly.

Abstract: A computer-based vehicle service system, such as a wheel alignment system, is configured with a tire pressure monitoring system interface to acquire measurements of the air pressure directly from tire pressure monitoring system sensors installed in the tires of a vehicle undergoing a service procedure. The vehicle service system is further configured to utilize the acquired air pressure measurements to complete at least one vehicle diagnostic 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.

Abstract: Methods and apparatus for a vehicle wheel alignment service procedure and an for acquisition of vehicle measurements, which imparts a gravity-induced rolling movement to a vehicle on a vehicle support structure to transition the vehicle from a first vehicle support surface over a descending roll ramp to a resting position on a second vehicle support surface.

Abstract: A method and apparatus for utilizing a vehicle wheel alignment system to guide the placement and orientation of a vehicle service apparatus or alignment fixture relative to the thrust line of a vehicle. A laser adapter for projecting a reference line is mounted to a steerable wheel of the vehicle, and is aligned relative to both a line of the vehicle and to the supporting surface on which the vehicle is disposed. The vehicle line is determined by the vehicle wheel alignment system, and the steerable wheel, together with the adapter, are steered relative to the determined vehicle line, such that a projected reference line defined by the position and orientation of the adapter is established parallel to both the supporting surface and the vehicle line. The placement and orientation of the vehicle service apparatus or alignment fixture is subsequently adjusted relative to the projected reference line.

Abstract: A vehicle wheel service system configured with a load roller assembly to apply a generally radial load to a vehicle wheel assembly during rotation, and which is configured with sensors to obtain one or more measurements of lateral forces associated with the vehicle wheel assembly during the loaded rotation, from which a quantified representation of lateral force for the tire of the vehicle wheel assembly is determined.