Abstract:
A procedure for calibrating a vehicle onboard sensor 202 by facilitating the placement of a calibration fixture 1 10 on a floor relative to a stationary vehicle 100 using a laser emitter 102 secured to a front steerable wheel 104 of the vehicle on the same lateral side as the vehicle onboard sensor. A beam projection axis X of the laser projector is aligned at a known orientation relative to a geometric characteristic of the vehicle 100, such that the beam projection axis X is directed over a placement location P of the calibration fixture on the floor, either inherently or by guided steering of the supporting steerable wheel. A distance between the calibration fixture 110 and a reference point associated with the vehicle 100 is measured, and a current position of the calibration fixture on the floor along the beam projection axis X is adjusted as required to position the calibration fixture for calibration of the vehicle sensor 202 at a selected distance from the reference point along the beam projection axis X,
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 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 turn plate assembly for support of the steered wheels of a vehicle on a precision planar surface. The assembly includes an approach plate (102) establishing a planar surface to within an established measurement tolerance. The approach plate is coupled to a base plate (108) underlying a bearing assembly consisting of a plurality of ball bearings retained between the base plate and an underside of a rotating support disc (112). An upper surface of the rotating support disc is coplanar with an upper surface of the approach plate. Resting on the upper surface of the rotating support surface, a translational surface or mat (120) is temporarily secured in place by magnetic adhesion. During use, translational forces exerted on the translation surface or mat by a vehicle wheel assembly may overcome the magnetic adhesion, enabling the translational surface or mat to translate relative to the underlying rotating support disc.
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 process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view, with a common overlapping region associated with each respective side of the vehicle support structure. Optical targets disposed within each of the overlapping field of view regions are observed by the imaging components to establish performance ratings for the system as a whole, for groups of components within the system, and for individual components within the system.
Abstract:
A turn plate assembly for support of the steered wheels of a vehicle on a precision planar surface. The assembly includes an approach plate establishing a planar surface to within an established measurement tolerance. The approach plate is coupled to a base plate underlying a bearing assembly consisting of a plurality of ball bearings retained between the base plate and an underside of a rotating support disc. An upper surface of the rotating support disc is coplanar with an upper surface of the approach plate. Resting on the upper surface of the rotating support surface, a translational surface or mat is temporarily secured in place by magnetic adhesion. During use, translational forces exerted on the translation surface or mat by a vehicle wheel assembly may overcome the magnetic adhesion, enabling the translational surface or mat to translate relative to the underlying rotating support disc.
Abstract:
A turn plate assembly for support of the steered wheels of a vehicle on a precision planar surface. The assembly includes an approach plate establishing a planar surface to within an established measurement tolerance. The approach plate is coupled to a base plate underlying a bearing assembly consisting of a plurality of ball bearings retained between the base plate and an underside of a rotating support disc. An upper surface of the rotating support disc is coplanar with an upper surface of the approach plate. Resting on the upper surface of the rotating support surface, a translational surface or mat is temporarily secured in place by magnetic adhesion. During use, translational forces exerted on the translation surface or mat by a vehicle wheel assembly may overcome the magnetic adhesion, enabling the translational surface or mat to translate relative to the underlying rotating support disc.
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.