Tyre Pressure Sensors: Everything You Need to Know About Them

When you are driving, the performance and safety of your vehicle depend upon various factors. Tyre pressure is one of the most crucial factors among them. Maintaining the correct tyre pressure ensures better fuel efficiency and a longer lifespan for your tyres.

However, checking tyre pressure manually is inconvenient and often overlooked by drivers. This is where tyre pressure monitoring systems (TPMS) come into play. Tyre pressure sensors are an integral part of this system. They provide real-time data on tyre pressure levels and alert you to any deviations. 

These sensors help prevent accidents caused by under or overinflated tyres, reduce fuel consumption, and boost the overall performance of your vehicle. Leading tyre brands like Michelin and Pirelli integrate advanced tyre pressure monitoring technologies to improve safety standards in their premium tyre models.

Today, we will explore everything you need to know about tyre pressure sensors, including their types, functions and benefits.

What Are Tyre Pressure Sensors?

They are small electronic devices fitted inside a vehicle’s tyres to measure air pressure levels. They send real-time data to the vehicle’s dashboard display. They ensure that you are informed about any pressure abnormalities.

Modern vehicles come with factory-installed TPMS, which includes these sensors as a standard safety feature. Based on the type of sensor, they either measure the exact air pressure or estimate it based on wheel speed.

How Do Pressure Sensors Work?

They operate by detecting changes in air pressure within the tyre and transmitting signals to the car’s monitoring system. There are two primary ways they function:

Direct TPMS: These sensors are mounted inside the tyre and directly measure the air pressure using a pressure gauge. They send wireless signals to the car’s computer. You will get accurate readings by this mechanism.

Indirect TPMS: Instead of measuring pressure directly, this system relies on wheel speed sensors to detect differences in rotation. If a tyre is underinflated, it rotates faster than the others.

Many high-end tyres, like those from Goodyear and Bridgestone, are designed to work seamlessly with direct TPMS. This ensures accuracy and reliability.

Benefits of Tyre Pressure Sensors

The following are some top-listed benefits you can get by using these advanced sensors.

Improve Road Safety

Pressure sensors help prevent accidents by alerting you to under or overinflated tyres. Proper pressure ensures better grip, stability, and braking performance. By detecting changes early, you can take action before a tyre failure occurs. It reduces the risk of blowouts on the road.

Increase Fuel Efficiency

When tyres are underinflated, they create more rolling resistance. As a result, the engine works harder and consumes more fuel. Pressure sensors help maintain the correct pressure, which ultimately reduces fuel consumption. This not only saves money on fuel but also decreases carbon emissions.

Extend tyres Lifespan

Incorrect pressure leads to uneven wear that can damage tyres. By keeping them properly inflated, sensors help extend their lifespan. It reduces the need for frequent replacements and saves you money in the long run.

Reduce Maintenance Costs

Low pressure puts extra strain on the suspension, brakes, and engine, which leads to expensive repairs. These advanced sensors alert you to issues before they become major problems. By maintaining proper pressure, you can prevent your vehicle from excessive mechanical stress. It will reduce the frequency of costly repairs.

Improve Driving Comfort

Properly inflated tyres provide a smoother and more stable driving experience. Underinflated ones make handling difficult and overinflating them causes a rough ride. Pressure sensors help maintain the ideal pressure. This ensures better handling and a more comfortable journey for you.

Supports Emergency Handling

In emergencies, such as sudden braking, properly inflated tyres provide better control. Sensors ensure that they have the right pressure, improving stability and reducing the risks of skidding.

Ensure Compliance with Regulations

In some countries, it’s mandatory to have a Tyre Pressure Monitoring System (TPMS) installed in your vehicle as a safety feature. Sensors help you comply with these regulations. They ensure that your vehicle meets road safety standards, mitigating the risk of penalties.

Types of Tyre Pressure Sensors

Tyre pressure sensors come in different types, such as:

Valve-Stem Sensors: They are installed directly on the valve stem. These sensors are commonly used in direct TPMS.

Band Sensors: These are attached to the wheel rim with a metal band. They are often used for accurate pressure measurements.

External Sensors: As clear from their name, they are designed to be used externally on the valve cap. They are easy to install and replace.

Internal Sensors: These are specialized sensors that are fitted inside the tyre. They offer high accuracy and require professional installation.

Many premium tyres, such as those from Continental, Dunlop, and other reputable brands, are designed to accommodate advanced internal TPMS for accurate monitoring.

Pressure sensors play a critical role in vehicle safety, fuel efficiency, and tyre longevity. By continuously monitoring air pressure levels and providing real-time alerts, they help you maintain optimal tyre conditions and avoid accidents.