Separated into control groups (48,49), consumer circuits (I-V) with partly varied pressure levels link to a compressed air acquisition unit. A compressor (4) is connected according to each air consumption in single consumer circuits by a signal generated b...

The compressor arrangement has a compressor unit (3) driven by an internal combustion engine (1) and an auxiliary compressor unit (8) fluidically in parallel with the engine-driven compressor unit and driven by an electric motor (7) with a control unit (6)...

The method involves generating low pressure compressed air from ambient air for low pressure loads (7a,7b) with a compressor unit (3) driven by an internal combustion engine (1) controlled by a control unit (14). Compressed air at a higher pressure for hig...

A control method of a hydraulic pressure source-driven type vehicle hydraulic pressure brake system in which no irritating noises or vibrations are produced during stoppage of the vehicle and which does not consume electric power in waste. When the vehicle...

A direct injection engine is coupled to a vacuum brake booster(130) wherein vacuum created from engine pumping is used to supplement driver braking force. The brake booster (130) is coupled through a check valve (134) to the engine intake manifold (44). A ...

A method is described for monitoring the performance of a sensor used to measure a vehicle or engine operating parameter in an automotive vehicle having an internal combustion engine (10) with an intake manifold (44) coupled through a check valve (34) to a...