| 摘要 |
<p>An air supply system for supplying a primary set of consumers and a secondary consumer in the form of a tyre pressure control system. Both sets of consumers are supplied with pressurised air from a compressor, the system also including an air drier and a protection means to ensure that the primary set of consumers takes priority over the tyre pressure control system and that the tyre pressure control system is activated when the air pressure in the supply system exceeds a predetermined level. The pressurised air is supplied to the tyre pressure control system without passage through the air drier and the compressor is switched to its idle mode when the air pressure available in the supply system exceeds said predetermined level.
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