Brake Components
It's not a kind of magic. Between the brake pedal and the brakes of the trailers, there are multiple braking system design possibilities.
Even if the Electronic Braking Systems strongly reduce the number of valves in the chassis, and until the air braking system is installed, there will be a need for pneumatic valves. Find here technical descriptions and variants of the most common ones.
Always check product compatibilities before buiding your braking system, with your Haldex technical contact.
Provide clean air to the trailer
Ensure a clean and reliable pneumatic connection between truck and trailer.
Coupling heads provide the pneumatic connection between truck and trailer and are available with or without integrated filters. When the trailer is parked, dummy couplings help keep the connections clean and protected from contamination. For demanding operating conditions, separate line filters provide easier access for inspection and cleaning.
Automatic emergency braking function
In case of critical air supply failure, an automatic emergency braking function must be activated.
Different products are complient with R13 requirements for emergency braking function as REV? TrCM? TrCM+, TEM and EB+4 .0
Adapt the brake force according to the axle load
Adjust braking performance according to the actual trailer load.
Different load sensing solutions are available depending on the vehicle design. Light Laden valves allow manual adjustment. Load Sensing Valves adapt braking performance automatically. EB+ 4.0 integrates an electronic load sensing function that reduces installation and setup time.
Park brake control
Safely immobilise the trailer when parked.
Park & Shunt valves, TrCM, TrCM+, TEM and TEM+ provide dedicated parking brake control solutions. These valves integrate even more security with the well-known Safe Parking option.
Anti-lock function
Prevent wheel lock-up and maintain vehicle control during braking.
ABS 4.0 provides an R13-compliant anti-lock braking solution. EB+ 4.0 also fulfils ABS requirements while offering additional functionalities.
Stability function
Improve trailer stability in critical driving situations.
EB+ 4.0 includes Roll Over Control functionality and is approved according to R13 requirements.
Speed up the braking signal
Reduce braking response time throughout the pneumatic system.
Relay valves can accelerate the braking signal and increase airflow. EB+ 4.0 improves responsiveness through electronic signal processing.
Provide air to the auxiliary systems
Feed the auxiliary and suspension systems.
Protect the braking system and ensure safe operation even in case of suspension failure.
Protection valves help secure the pneumatic installation and maintain safe operation. This function is realised by separate PPV and also integrated into TrCM, TrCM+, TEM and TEM+ solutions.
Control and secure trailer operations
Manage trailer brake operation during manoeuvring and daily use.
Park & Shunt valves, TrCM, TrCM+, TEM and TEM+ are designed to control trailer brake functions during operation.