Abstract: A machine-vision vehicle wheel alignment measurement system configured with at least one optical sensor to acquire images of optical targets disposed within an operative field of view. The system further includes a processing system configured with software instructions to determine relative spatial positions and orientations of one or more optical targets visible within images acquired by the optical sensor. The processing system is further configured with software instructions to automatically identify an axle count and axle configuration for a vehicle undergoing an alignment inspection or service using the determined relative spatial positions and orientations of the visible optical targets.

Abstract: A wheel adaptor for placement against a rim edge of a wheel having a recessed central hub. The adaptor comprises a base supporting, on an inboard side, a framework for synchronous radial adjustment of at least three contact surfaces. An axially adjustable target mount is secured to the base on an outboard side. A spring-biased clamp is coupled to the base, positioned axially inboard of the target mount. Extending radially outward from the clamp, a pair of wheel clamp arms are adjustably configured to engage the tread surface of a tire when placed against the wheel. Engagement of the clamp applies a grips the tire tread surface, holding the contact surfaces against the wheel. A radially outward position of the contact surfaces along the base is controlled by a rotating selection element and a set of linkages coupling each contract surface to the selection element.

Abstract: A vehicle service system including a set of cameras and a processing system configured to access a database of vehicle-specific information, which includes data identifying vehicle-specific targets and/or service fixtures. The processing system is configured with a user interface to convey instructions to an operator, including the identification of vehicle-specific targets and/or service fixtures required to carry out a selected vehicle service. The processing system subsequently evaluates images acquired from the set of cameras to identify features present within the images, including placed vehicle-specific targets, from which identification of, and verification of correctly selected, vehicle-specific targets is made.

Abstract: A vehicle wheel imbalance measurement system having a rotationally driven spindle for receiving a vehicle wheel assembly, a motor drive for rotating the spindle and wheel assembly about an axis of rotation, and a set of force transducers for measuring imbalance forces generated by the rotating wheel assembly, and in particular, to a structure within the vehicle wheel imbalance measurement system for conveying a portion of the generated imbalance forces to be measured from the wheel assembly to a fixed ground.

Abstract: A drive-through vehicle inspection system with a method for acquiring information from markings on tire sidewall surfaces of a moving vehicle. As the vehicle passes through the inspection system, sets of colored light sources, disposed at different relative orientations on opposite lateral sides of the vehicle, illuminate each passing wheel, enabling optical imaging systems associated with the opposite lateral sides of the inspection lane to acquire color images of the illuminated tire sidewall surfaces. Acquired color images are passed to a processing system and separated into individual red, green, and blue color channels for image processing. The processed output from each color channel is recombined by the processing system into a synthesized grayscale image highlighting and emphasizing markings present on the tire sidewall surfaces for evaluated by an OCR algorithm to retrieve tire identifying information.

Abstract: A machine-vision vehicle service system, and methods of operation, incorporating at least one displacement sensor to acquire measurements associated with physical floor surfaces in proximity to a vehicle undergoing service or inspection. The acquired measurements are utilized to guiding placement of ADAS target components on a floor surface accounting for deviations from an established vehicle reference plane.

Abstract: A support structure having a vertical element supporting a set of cameras associated with a vehicle measurement or inspection system together with at least one target structure required for realignment or recalibration of onboard vehicle safety system sensors. A camera crossbeam carried by the support structure locates the set of cameras as required to view a vehicle undergoing measurement or inspection. The target structure is affixed to the vertical element of the support structure, at an elevation suitable for observation by at least one vehicle onboard sensors during a realignment or recalibration procedure. A set of rollers facilitates positioning of the target structure on a supporting floor surface during a realignment or recalibration procedure.

Abstract: A vehicle measurement and ADAS inspection and/or calibration system incorporating dual support columns arranged in a front-to-back configuration on a rolling base to achieve a low center of gravity. A vertically adjustable instrumentation and target support lateral crossbeam is mounted to a front column and is linked to a counterweight supported on a rear column by a driven cable and pulley assembly. A storage cabinet is additionally located on the wheeled base, partially enclosing a lower portion of the rear column, and extending forward towards the front column. Brake releases are operatively coupled to associated friction brake pads located below the base. The friction brake pads are biased into engagement with a supporting floor surface to prevent unintended movement of the base, and temporarily disengaged by operation of the associated brake releases.

Abstract: A heavy-duty vehicle measurement system utilizing displacement sensor modules disposed in housings on opposite sides of a vehicle inspection lane to acquire a set of displacement measurements associated with a moving heavy-duty vehicle. Displacement data along one or more measurement axes is acquired independently by each of the displacement sensor module to measure corresponding distances between the sensor module and points on a surface of the passing heavy-duty. A processing system is configured to receive and evaluate the set of displacement measurements, together with known parameters of the measurement system, to identify heavy-duty vehicle features, such as configuration, body panels, wheel assemblies, and tire surfaces, and to calculate heavy-duty vehicle parameters such as velocity, wheel rim or tire dimensions, axle relative orientations (scrub angles) and wheel assembly spatial orientations.

Abstract: A system for temporarily mounting an observable target on a vehicle service system during a vehicle service or inspection process. The system includes at least one target backing plate affixed at a known or determinable position on the vehicle service system facing a vehicle undergoing service or inspection. The target backing plate provides a forward facing planar surface receiving a removable optical target, with at least one target guide element to provide a fixed reference for indexed alignment of the removable optical target on the target backing plate.

Abstract: A vehicle service system incorporating a pair of gimbal-mounted optical projection systems enables an operator to selectively orient each optical emitter of the optical projection system to illuminate a location on a vehicle surface in proximity to the system. Signals indicative of an orientation of each optical emitter about three-axes of rotation are received at a controller programmed with software instructions to utilize the received signals, together with known locations for the systems, to calculate a three-dimensional coordinate for the illuminated location within an established frame of reference. The controller is further programmed to utilize the calculated three-dimensional coordinate of the illuminated location as an origin point for determining one or more placement locations within the established frame of reference for ADAS sensor calibration or alignment targets.

Abstract: A vehicle ADAS target or fixture is configured with an Inertial Measurement Unit (IMU) consisting of a combination of accelerometers and gyroscopes capable of estimating a relative position and orientation within the spatial volume of the vehicle service area by tracking changes in acceleration and rotation. A controller monitors movement of the IMU relative to an established reference location, generating output utilized by a vehicle service system to guide a technician to position and orient the vehicle ADAS target or fixture at a selected location within the vehicle service area required to conduct a vehicle ADAS service procedure.

Abstract: A machine-vision vehicle service system, and methods of operation, incorporating at least one gimbaled sensor module configured with at least an optical range finder to acquire measurements associated with physical floor surfaces in proximity to a vehicle undergoing service for guiding corrected placement of ADAS target components relative to an established vehicle floor plane.