Detection time

During the measurement process of the 3D positioning instrument, the car must be manually pushed forward and backward by 15-500px to compensate for the measurement error. (To compensate for the wheel runout, the wheel needs to rotate one circle and memorize the image data, but due to the limitation of the principle, the car can only be pushed in a small range.) The above is the detection time provided by the manufacturer.

There is no need to push the vehicle forward and backward manually for measurement. The vehicle stops at the designated position, the lifting device is lowered, and the roller group rotates. Because the wheel runout compensation is required, the wheel must rotate at least one circle. In fact, it rotates multiple circles, and the statistical data with the highest repetition frequency is extracted to obtain the toe and camber values. (If only the toe and camber are measured, there is no need to install a 3-claw bracket. If the optional detection of kingpin caster and inclination is selected, an external 3-claw bracket is required.)

Adjustment results

Theoretically, it can be adjusted to the design value, but it is unknown whether it is worn or deviated.

Knowing the adjustment results, you can adjust to minimize wear and prevent deviation in direction

Adjustment conditions

The parts are manufactured with high precision, with ideal settings as the benchmark. The angles that cannot be adjusted, such as (wheel camber, kingpin caster, kingpin inclination) must be absolutely accurate. The tires must be from the same batch of specifications. Each replacement of a tire or a new model must be calibrated through a wear test. The production situation must be completely consistent with the design value and accurate, and the tire rim is preferably machined.

The auto parts are basically qualified and in line with China's national conditions.

The errors of parts can be compensated. It has strong adaptability, and the deviation of design value has no effect on adjustment. The deviation of design can be corrected through long-term statistics. It is more suitable for large-scale production.

Repeatability

Poor repeatability, due to the poor actual processing accuracy of low-end wheel rims, mainly due to insufficient rim accuracy, some domestic wheel rims are stamped parts, poor tire outer edge accuracy and other factors. There are only 25% of the measurement points, which cannot 100% reflect the positioning of the wheel during driving.

The average value is calculated by sampling once every 5ms, and 64 sampling points are selected for one wheel. The actual repeatability can be more than 98%.

applicability

Any replacement of steering components of the vehicle must be re-tested on the road by the design department and provided to the static locator, which is more suitable for repair.

When any steering component of a vehicle is replaced, the summary data can be provided to the design department through batch adjustment to revise the positioning value, and no road wear test is required. It is suitable for automobile manufacturers with diverse products and many models.

Versatility

Each additional model must be recalibrated. When there are many tire manufacturers and models, the calibration work is very cumbersome, and the design department needs to do a lot of wear tests to determine the positioning data for production.

Applicable to any light vehicle, regardless of tire and model changes.

Side slip detection

40% excellent 90% qualified 510% out of tolerance

100% excellent 100% qualified Average side slip approaches zero

Tire deviation

Unable to detect deviation caused by tire structure

Can detect deviation caused by tire quality

Factors affecting adjustment

The static 4-wheel alignment is done manually. When the output reaches 200 units\/day, the loading and unloading of a vehicle tooling is done 8 times, 1,600 times a day, and it is difficult to ensure that there will be no mistakes if each time is completed within 15 seconds. Once a mistake is made, it is difficult to detect unless it is rechecked. The static aligner is based on the accuracy of the tooling fixture.

The dynamic 4-wheel alignment instrument does not require manual installation. The less manual involvement, the less the probability of error. It can effectively avoid human influence.

Cost

Low cost and suitable for repair

The cost is high and the output is low, so it is only suitable for automobile manufacturers.