TS 4599

TS 4599 is a terminology standard that defines the terms used for braking systems in motor road vehicles, trailers, and vehicle combinations. In braking technology, the subject is not only stopping a vehicle, but also controlling deceleration, holding the vehicle at rest, and naming the interacting subsystems in a consistent way. This standard helps establish a common technical language for engineering, maintenance, testing, and documentation.

Why braking terminology matters

AS GENERAL TECHNICAL CONTEXT, vehicle braking systems typically include different functions such as service braking, parking braking, and auxiliary braking. The way braking force is generated, transmitted, and distributed can vary between passenger vehicles, heavy vehicles, and trailers, so precise terminology is essential for clear communication. Based on ISO 611, TS 4599 serves as a vocabulary reference for the core concepts of braking equipment rather than a performance or design specification.

What this standard covers

• Terms used for braking systems in motor road vehicles
• Basic naming for trailer braking arrangements
• Common concepts for vehicle combinations and braking
• Principal expressions related to braking and braking equipment

The focus of this standard is the definition of terms, not the prescription of construction details or test procedures. In other words, it explains how the concepts are to be understood and named, rather than how braking systems must be built. Although it is listed as a withdrawn TSE standard, it remains useful as a structured reference for the vocabulary of braking technology.