Ultrasound Height & Pressure Sensor

Growing traffic volumes, an increased risk of accidents, rising emission levels and increased noise levels: We are developing technologies that will enable the transport industry to overcome these challenges in urban agglomerations – and to make the leap into digitization. Air springs can now be controlled electronically and automatically by our UHP sensors – in the case of city buses, this means fewer energy losses and improvements to efficiency and safety.

Pioneers in the field

The electronic air spring: Our Ultrasound Height and Pressure Sensor (UHPS) makes it possible to adjust the height of vehicles. The ultrasound technology measures the height and the pressure of the air springs and continuously sends the exact values to the electronic control unit. This electronic monitoring process prevents unnecessary energy losses from the air springs by automatically keeping the ride height at the target value – a technology that opens up a range of new possibilities for the sector.

Ultrasound Height Pressure Sensor

A glimpse into the future

We’re already thinking one step ahead: In the future, not only will UHP sensors be used to precisely measure the height and air pressure of the spring, but also to detect and transmit signals in the event of overload and disruption. These signals will reduce unexpected defects and therefore vehicle downtime, as well as the risk of accidents. In a nutshell, we use anticipatory maintenance to ensure greater safety on the roads.

Technical data

  • The sensor transmits the active pressure and, using ultrasound, the precise height of the air spring
  • Values are sent to the electronic control unit. The ECU’s algorithms check whether a control intervention is necessary, and, if so, send signals to the electrically actuated valves that regulate the air supply as needed
  • Ride height target values for city and highway driving are saved in the electronic control unit


  • Drivers have a permanent overview of the active air pressure of the springs
  • Electronically controlling the air springs with sensors is more efficient than doing so mechanically
  • In the future, the technology will enable anticipatory maintenance, which will reduce downtime and accidents and make road travel safer