The main function of a high quality trailer control valve is to provide compressed air to the trailer's braking system and to control the trailer's braking system through the tractor's service brake system and the parking and auxiliary brake valves. The specific description is as follows:
Provide compressed air: Trailer braking systems require a steady, sufficient supply of compressed air to function properly. As the core component of this system, the high quality trailer control valve's first task is to ensure that the trailer braking system receives sufficient compressed air. During the operation of the tractor, the engine compresses the outside air by driving the air compressor and stores it in the air storage tank. The trailer control valve precisely controls the opening and closing of the air circuit to ensure that compressed air can flow smoothly to the trailer braking system when needed. This process not only requires the trailer control valve to have excellent sealing performance and durability, but also requires it to be able to quickly and accurately adjust the opening and closing of the air path according to different road conditions and braking needs, thereby ensuring the stability of the trailer braking system. performance and reliability.
Controlling Trailer Braking: Another important function of the trailer control valve is to control the trailer’s braking. During driving, the driver needs to depress the brake pedal in a timely manner according to different road conditions and driving needs to decelerate or stop the tractor and trailer at the same time. The trailer control valve receives the pressure signal generated by the tractor's braking system and converts it into a control command for the trailer's braking system to achieve synchronous braking of the tractor and trailer. This process requires the trailer control valve to be highly responsive and precise, capable of quickly receiving and analyzing pressure signals and accurately converting them into control instructions for the trailer braking system. At the same time, the trailer control valve also needs to have strong processing capabilities, capable of processing multiple signals from the tractor braking system at the same time, and making quick and accurate judgments and responses based on the different priorities and importance of these signals.
Trailer Emergency Braking: The trailer emergency braking feature is one of the key safety features of the trailer control valve. When the trailer and the tractor are traveling, various unexpected situations may be encountered, such as the trailer and the tractor being accidentally separated or the trailer braking system failing. In these emergency situations, the trailer control valve can respond quickly to ensure that the trailer can stop moving promptly and effectively to avoid potential accidents. When the trailer accidentally separates from the towing vehicle, the trailer control valve immediately detects this anomaly. At this time, it will quickly cut off the air connection with the trailer braking system to prevent the trailer from losing its braking ability due to air pressure leakage. At the same time, the trailer control valve activates the trailer emergency brake, an independent braking system capable of operating without an external air pressure supply. The emergency brake quickly locks the trailer's wheels, bringing it to a stop in the shortest possible time. The trailer control valve also plays an important role in the event of a trailer brake system failure. It will detect the signal of braking system failure through the internal safety detection mechanism.
Integrated Parking and Auxiliary Brake Control: Some advanced trailer control valves also feature integrated parking and auxiliary brake control. These features allow the trailer control valve to receive signals from the tractor's parking and auxiliary braking systems and adjust trailer brake system pressure accordingly, allowing for more refined brake control. Parking brake systems are typically used to lock a trailer's wheels when parked, preventing them from sliding or moving. The trailer control valve can receive the signal from the tractor parking brake system and automatically adjust the pressure of the trailer brake system so that the trailer and the tractor enter the parking state at the same time. This integrated control function not only improves safety when parking, but also simplifies the driver's operation process. The auxiliary braking system is designed to provide additional braking capacity in certain special situations. For example, when driving downhill or with a heavy load, a trailer requires additional braking power to maintain stability. The trailer control valve receives signals from the tractor's auxiliary braking system and increases trailer braking system pressure as needed to enhance the trailer's braking performance. This integrated control function can flexibly adjust the trailer's braking force according to different driving conditions and needs, improving driving safety and stability.
