What is the function of the four-wheel locator? What should we pay attention to when using?

2024-09-13 15:28:26

The automobile four-wheel positioning instrument is used to detect the automobile wheel positioning parameters, and compared with the original design parameters, and guide the user to adjust the wheel positioning parameters accordingly, so that it meets the original design requirements, in order to achieve the ideal automobile driving performance, that is, the operation of light, stable and reliable driving, reduce tire wear precision measuring instrument.

The automobile four-wheel locator is a data acquisition part consisting of four measurement probes. The sensor in the measurement probe respectively senses the light coordinates of the infrared transmitting tube on the measurement probe relative to it, which is transmitted to the wireless receiver in the cabinet through the wireless transmitter, and then transmitted to the computer host through the COM port in the industrial computer for calculation and processing. Because the sensor reflects the relationship between itself and the infrared emission tube on the corresponding measurement probe, and the measurement probe is connected to the car rim through four wheel clips, the relationship between the four rims can be measured through eight sensors, so as to determine the wheel positioning parameters; Eight sensors form a closed quadrangle, enabling four-wheel positioning measurement of the vehicle. In practical applications, eight sensors on four measurement probes are equipped with filters in front of the lens to eliminate the interference of visible light on the infrared emitting diode bright spot image.

The data processing part is a four-wheel locator host, which mainly includes a computer system, a power supply system and an interface system. Its function is to realize the user's command operation of the four-wheel positioning instrument, collect and process the image data of the sensor, and display it together with the original design parameters, and guide the user to adjust the car wheel, and finally print out the corresponding report.

The four-wheel positioning instrument diagnoses and treats the above discomfort symptoms of the vehicle by measuring the positioning Angle. It is divided into front wheel positioning and rear wheel positioning. The front wheel positioning includes four contents: kingpin rear inclination Angle, kingpin internal inclination Angle, front wheel camber Angle and front wheel front bundle, and the rear wheel positioning includes wheel camber Angle and front wheel bundle one by one. Under normal circumstances, after 3 months of driving, the new car should do four-wheel positioning, and then every 10,000 kilometers, the tire should be changed if there is a collision, the four-wheel positioning should be done in time.

What should you pay attention to when using the four-wheel locator?

In the choice of car maintenance shop, we must choose a special car maintenance shop, because experience, technology and technicians with four wheel locator, in order to provide perfect service for your car, with the evolution of the suspension system from simple to complex, its structure is becoming more complex, the corresponding requirements for four wheel positioning Angle is also becoming higher and higher, therefore, there is a certain type of designated four wheel locator, The four-wheel positioning instrument is not used to adjust and change the positioning Angle of the instrument, it is only used to measure the positioning Angle, and then, the technician takes this as a reference, compared with the Angle set by the original factory, the positioning Angle is adjusted and changed, so that it returns to the original design Angle.

In addition, the main factors affecting four-wheel positioning are: (1) driving at high speed on uneven road surface; (2) the front wheel is impacted by external force, and the sidewalk steps are taken; (3) Often beat the direction in place; (4) Tire pressure beyond the standard range. Therefore, the majority of motorists in the maintenance of your car, should pay attention to the following points: (1) through the obstacles, as slow as possible, around; (2) The front tire pattern must be consistent, so as to ensure driving performance and prevent the appearance of insufficient adhesion, noise, sideslip, partial wear and other phenomena; (3) After updating or repairing the tire, the tire dynamic balance test must be carried out.

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