Coats Alignment: Precision Driving Checks

Understanding how your vehicle's alignment is assessed is crucial for maintaining optimal performance, safety, and tyre longevity. Traditional alignment checks often involve clamping devices onto wheels and lengthy procedures. However, modern advancements, particularly with systems like Coats EVO and PLUS, have revolutionised this process. These sophisticated systems leverage cutting-edge technology to provide rapid, accurate, and non-intrusive alignment diagnostics. This article delves into the intricacies of how Coats alignment systems work, focusing on their innovative drive-through measurement capabilities.

The Evolution of Wheel Alignment

Wheel alignment refers to the adjustment of a vehicle's suspension components to meet OE (Original Equipment) specifications. Proper alignment ensures that your wheels are positioned correctly relative to the road surface and each other. Misalignment can lead to a host of problems, including uneven tyre wear, poor fuel economy, and compromised handling, making it a critical aspect of vehicle maintenance. Historically, alignment checks were a more manual and time-consuming affair. Technicians would manually measure various angles and distances, often requiring the vehicle to be lifted and wheels to be clamped. While effective, these methods could be prone to human error and were less efficient for high-volume workshops.

Introducing Coats EVO and PLUS Alignment Towers

Coats has been a pioneer in automotive service equipment, and their EVO and PLUS alignment systems represent a significant leap forward. The core of these systems lies in their innovative use of high precision lasers and advanced sensor technology. Unlike conventional methods, these systems are designed for a 'drive-through' operation. This means the vehicle is simply driven over a designated area where the alignment towers are positioned. There's no need for the vehicle to be lifted, and crucially, no need for wheel clamps to be attached. This not only speeds up the process but also eliminates potential inaccuracies that can arise from clamp placement.

How the Drive-Through Measurement Works

The magic behind the Coats drive-through alignment check lies in the sophisticated interplay between the alignment towers and the vehicle's wheels as it passes through. Here's a breakdown of the process:

Laser Projection and Detection

The alignment towers are equipped with precisely calibrated laser emitters and sensors. As the vehicle drives slowly through the measurement bay, the lasers project specific patterns or beams onto the tyres and wheels. These laser beams are designed to interact with the surfaces of the wheels and tyres in a predictable way. The sensors, also housed within the towers, are strategically positioned to detect these laser beams. By analysing how the laser beams are reflected, refracted, or interrupted by the wheels, the system can gather a wealth of data about their position and orientation.

Measuring Key Alignment Parameters

The data captured by the laser sensors allows the Coats EVO and PLUS systems to measure several critical alignment parameters with remarkable accuracy. These include:

• Total Toe: This is the sum of the toe-in or toe-out of both front wheels. It's a crucial indicator of how parallel the wheels are to each other.
• Side-Slip (or Scrub): This measures the amount of lateral deviation or 'scrubbing' of the tyres as the vehicle moves forward. Excessive side-slip indicates a misalignment issue, often caused by steering or suspension problems.
• Wheel Distortion: While not a direct alignment parameter in the traditional sense, the system's ability to detect subtle variations in laser reflection can help identify potential wheel distortion or damage that might not be immediately visible.

The Role of Advanced Software

The raw data collected by the laser sensors is processed by highly advanced software algorithms. This software translates the laser measurements into understandable alignment readings, comparing them against the vehicle's manufacturer specifications. The system can identify deviations from the ideal alignment, flagging potential issues within the steering and suspension systems. This diagnostic capability is a significant advantage over simpler measurement tools.

Benefits of Coats Drive-Through Alignment

The drive-through alignment technology offered by Coats provides numerous advantages for workshops and vehicle owners alike:

• Speed and Efficiency: The entire measurement process is significantly faster than traditional methods, allowing for quicker throughput in busy workshops.
• Accuracy: By eliminating the need for wheel clamps and reducing manual intervention, the precision of the measurements is greatly enhanced. The laser technology ensures a high degree of repeatability.
• Non-Intrusive: No physical contact is made with the wheels themselves during the measurement, meaning no risk of scratching or damaging alloys.
• Ease of Use: The 'drive-through' nature simplifies the operator's role, making it easier to integrate into daily operations.
• Fault Identification: The ability to accurately measure side-slip and detect subtle anomalies helps in identifying underlying steering and suspension faults that might otherwise be missed.

Comparison with Conventional Alignment Checks

To better understand the advantages, let's compare the Coats drive-through system with conventional alignment checks:

Identifying Steering and Suspension Faults

The detailed measurements provided by Coats alignment systems are instrumental in pinpointing issues within the steering and suspension. For instance, an excessive side-slip reading, even if the toe angle appears within specification, can strongly suggest a problem with the steering geometry or a bent suspension component. Similarly, inconsistencies detected by the laser system might indicate worn bushings, damaged control arms, or even a bent steering knuckle. The system's ability to provide detailed diagnostics empowers technicians to recommend the correct repairs, rather than just making theoretical alignment adjustments.

Frequently Asked Questions

Q1: Do I need to have my vehicle lifted for a Coats alignment check?

No, the Coats EVO and PLUS systems are designed for a drive-through measurement, meaning the vehicle does not need to be lifted. The lasers and sensors in the towers perform the measurements as the vehicle moves through the bay.

Q2: Can the laser system damage my wheels?

Absolutely not. The laser system is entirely non-contact. It projects light and sensors detect the reflections. There is no physical interaction with the wheels, so there is no risk of scratches or damage.

Q3: How accurate is a drive-through alignment compared to traditional methods?

The drive-through laser systems are generally considered to be highly accurate, often exceeding the precision of traditional methods due to the elimination of variables like clamp placement and potential movement during the process. The precision lasers are calibrated to a very high standard.

Q4: What specific alignment issues can Coats systems detect?

Coats systems can accurately measure total toe and side-slip. They are also capable of detecting anomalies that might indicate wheel distortion or other underlying issues within the steering and suspension components.

Q5: Is this system suitable for all types of vehicles?

These systems are designed to be versatile and are suitable for a wide range of passenger vehicles. Specific model compatibility should always be confirmed with the equipment manufacturer.

Conclusion

The Coats EVO and PLUS drive-through alignment systems represent a significant advancement in automotive service technology. By harnessing the power of high-precision lasers and sophisticated software, these systems offer a fast, accurate, and non-intrusive method for checking and diagnosing vehicle alignment. The ability to identify faults in steering, suspension, and even detect potential wheel distortion without the need for operator intervention or wheel clamps sets them apart from conventional methods. For workshops looking to improve efficiency and diagnostic capabilities, investing in such technology is a clear path to providing superior service and ensuring customer satisfaction through enhanced vehicle safety and performance.