Characteristics of the pedal-travel sensor
Features of the new sensor include contactless and thus entirely wear-free travel measurement using a magnetic field sensor as well as redundant signal recording. The compact design of the two sensor components (magnetic field sensor and magnetic circuit) means the sensor can be integrated cost-effectively into existing vehicle environments.
Customers are able to choose between two mounting locations — either integrating the sensor into the brake actuator in the engine compartment, or mounting it directly on the brake pedal in the passenger compartment. There are two designs which support a wide variety of configurations between them:
The PWG12 has the sensor and the magnetic circuit fitted separately. When using the PWG12, the magnetic circuit is mounted onto the moving part and the sensor housing onto the static part of the brake-operating unit. Therefore, no additional mechanics are required. This variant offers the greatest flexibility during installation and can be used, for instance, to measure the stroke of the brake rod.
The PWG13 includes a PWG12 as well as an additional operating unit, which contains the magnetic circuit and its own mechanics. Therefore, only one component must be integrated into the brake-pedal box. This variant can simply be applied mechanically, for instance for measuring the pedal angle.