Vehicle Braking System
AssigneeHaldex Brake Products AB
InventorsDudley John Harrison, Carl Mellings, Mark Pleczko, Neil Brightman
Life of this patent
Estimating the term…
Abstract
A vehicle braking system comprising a spring brake actuator having a spring brake chamber, a spring brake control assembly and an immobiliser valve which is movable between brake release position in which the spring brake control assembly is operable to cause the flow of pressurised fluid into the spring brake chamber or to vent the spring brake chamber to a low pressure region, and an immobilise position in which the spring brake control assembly is operable to connect the spring brake chamber to a low pressure region but cannot be operated to cause the flow of pressurised fluid into the spring brake chamber.
Claims34
A vehicle braking system, comprising:
- a spring brake actuator having a spring brake chamber, a spring brake control assembly, and an immobiliser valve which is movable between a brake release position, in which the spring brake control assembly is operable to cause at least one of the flow of pressurised fluid into the spring brake chamber or to-vent the spring brake chamber to a low pressure region, and an immobilise position, in which the spring brake control assembly is operable to move to connect the spring brake chamber to a low pressure region and not cause the flow of pressurised fluid into the spring brake chamber.
(canceled)
Dependencies are inferred from the claim text.