摘要:
A vehicle wheel alignment method and system is provided. A three-dimensional target is attached to a vehicle wheel known to be in alignment. The three-dimensional target has multiple target elements thereon, each of which has known geometric characteristics and 3D spatial relationship with one another.
摘要:
A vehicle wheel alignment method and system is provided. A three-dimensional target is attached to a vehicle wheel known to be in alignment. The three-dimensional target has multiple target elements thereon, each of which has known geometric characteristics and 3D spatial relationship with one another.
摘要:
Apparatus for measuring vehicle wheel alignment comprising a yoke having a pair of aligned center pins engageable with a transverse axis in the vehicle; a collimated beam projector connectable to the yoke and adapted to project its beam at right angles to the axis of the center pins, and longitudinally of the vehicle with reference to the transverse axis and a target for the beam so attachable to a wheel of the vehicle that alignment of the wheel can be measured. In one embodiment the target is a mirror and the projector is provided with a transverse scale for measuring the reflected beam. In the other embodiment the target comprises a set of scales hung or clamped to the wheel.
摘要:
Proposed in accordance with the invention is a method of measuring the camber, KPI and caster wheel alignment angles in the front axle and suspension assembly of a motor vehicle without the need for recourse to a levelled surface or to any gravitation-sensing instruments for the purpose of the measurements. One front wheel at a time is measured, for which purpose the wheel is fitted with a projecting pin parallel to the wheel axle intended to support a laser beam machine which emits a beam perpendicular to the wheel axle. A screen marked with reference lines is positioned at a certain distance away from the wheel, initially in front of, and then alongside the wheel, with the direction of the reference lines corresponding to the direction of the reference plane of the vehicle. By causing the laser to rotate about the pin, and by causing the wheel to execute steering movements with the laser fixed to the pin, the laser beam can be made to "draw" lines on the screen, which lines produce angles with the reference lines of the screen in accordance with the camber, KPI and caster angles of the wheel. In order to be able to carry out the measurements rapidly and accurately, and at the same time to have the results of measurement recorded, the use of a special design of the aforementioned screen is proposed, more specifically in the form of a measurement panel (60) equipped with a pointer (80), to which panel a sheet of paper bearing a scale (90) can be secured. The results of measurement are recorded on this automatically by the operator making a mark with a pen in an opening (81) in the pointer (82) after every measurement adjustment.
摘要:
An apparatus for measuring caster and camber in a motor vehicle including a mirror which is mountable on the respective hubs of the vehicle wheels and the normal to which is directed parallel to the wheel axles of the vehicles. A projector is disposed opposite the mirror and a projection surface is provided including a plurality of light-sensitive detectors for detecting images of horizontally-vertically oriented shutters disposed in the ray path of the projector reflected by the mirror. The improvement of the invention comprises the shutters comprising measuring edges of rotatable arms disposed in an object plane of the projector. The angles or rotation of the arms between a reference position and a position of the arms at which an image of one of the measuring edges reflected by the mirror onto at least one detector are used to measure the caster and camber angles of the wheels of the vehicle.
摘要:
Wheel alignment apparatus for electrically indicating the alignment condition of a vehicle wheel in which there is sensing means, including an element adapted to be detachably secured to the wheel, for producing an electrical output dependent upon the extent of inclination of the wheel and an electrical display device having a movable member positioned in accordance with the electrical output of the sensing means. The sensing means is designed to selectively detect toe-in, camber, and caster.
摘要:
An automobile body 2 with a wheel mount 5 vertically movably mounted thereon is supported, and the wheel mount 5 is lifted to an adjusting position which is set so as to be lower than the position that the wheel mount 5 takes when the automobile is running. The position of the wheel mount 5 as it is lifted and toe and camber angles thereof are measured, and estimated values of the toe and camber angles at the position that the wheel mount 5 takes when the automobile is running are calculated based on the measured values. Thereafter, adjustment quantities for the toe and camber angles at the adjusting position are calculated, and wheel alignment is adjusted at the adjusting position based on the adjustment quantities. Wheel alignment of the automobile can be measured and adjusted quickly and accurately for increased productivity without applying the same load to the automobile body as the load that is applied when the automobile is running.
摘要:
The present invention relates to a wheel alignment measuring apparatus which measures the toe-in length or angle and camber angle of each tire (17) of a car.The wheel alignment measuring apparatus can be used to measure the distances to various points on the surface of the tire (17) by means of the light of a predetermined wavelength emitted from the light-emitting means (4) and to determine the toe-in angle or length and camber angle of the tire (17) based on the measured distances. In other words, such measurement can be done without any contact with the tire (17) under inspection, thus it is possible to prevent any trouble which would occur when such measurement is done in contact with the tire, such as error caused by the oscillation or the like of the tire (17).Also, with the wheel alignment measuring apparatus according to the present invention, it is possible to effectively correct any error of measurement caused by any irregularities on the tire (17), thereby attaining a higher accuracy of measurement since the calculating means (6) incorporated appropriately calculates the distances to various points on the tire surface from the data obtained based on the time taken for the light emitted toward various points on the entire circumference of each tire (17) at many short time intervals to return, as reflected, to the light-emitting means (photo-detecting means).
摘要:
A wheel alignment system includes either four wheel mountable alignment heads or two alignment heads and two retroreflectors or two alignment heads alone together with a control console and display. A main process unit is included in the console for performing calculations and for controlling systems function control components communications sequences. Each console function control component includes its own controller. The control console further includes a CRT display module and optional voice instruction and printer output modules. A bar code reader is available for quick specifications entry. Communications and decision making instructions are downloaded from the controller in each console function control component to the main processing unit at initialization. Communication between the heads and the console is accomplished either through the use of conducting cords or infrared transmission and reception. Each alignment head also includes a controller which controls collection of alignment data in parallel at each head as well as serial transmission from each head to the console during discrete transmission periods as required by the main processing unit.
摘要:
Apparatus for aligning vehicle front and rear wheels and a method of applying such apparatus in which projectors of light beams on the front wheels direct beams forwardly to a cooperating alignment stand and direct beams rearwardly to cooperate with devices on the rear wheels which include scales and reflective surfaces used in aligning the front wheels and determining the positions of the rear wheels relative to the vehicle longitudinal axis or geometric center line. The projectors on the front wheels support screens in positions to cooperate with the light beams when reflected back from the stand and from the rear wheels.