Realization of automobile wheel positioning system

This system is mainly used for the detection of the amount of side slip of automobile wheels. In order to ensure steering straight line without lateral slip of the wheel rolling is required camber and the toe proper fit of the front wheel, when the outer wheel toe-in and camber angles match is not the time, the wheels may not be pure rolling in the straight running, The side slip phenomenon occurs. When this slippage phenomenon is too severe, it will destroy the attachment conditions of the wheels, lose the ability to orientate, cause traffic accidents and cause abnormal wear of the tires. The magnitude and direction of the amount of lateral slip can be detected with a vehicle wheel slip test stand.

Structure of side sliding table:

System hardware configuration:

2 displacement sensors

2 groups of photoelectric switches

Analog input module

Switch input module

Working principle of the system:

When the wheels step on the side slide, the first group of photoelectric switches are turned off (the photoelectric switch is normally open when not blocked), and when leaving the side slide, the second group of photoelectric switches are turned off, and the side slip of the wheel is recorded at this time. The test of a group of wheels is completed. The wheels step on the side skateboards in sequence and record the amount of side slip as described above to complete the side slip test of the entire vehicle.

Functional structure diagram:

System functions:

Automobile positioning: The system provides three different automobile positioning systems, which are single-axle positioning, double-axle positioning and multi-axle positioning. Among them, multi-axle positioning needs to detect the amount of side slip of 6 groups of wheels.

System settings: You can set the upper and lower limit alarm values ​​for the amount of side slip, the length of the skateboard, and the current trademark of the vehicle under test.

Customer management: able to record and modify information of detected vehicles and support printing.

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