Method and device for controlling a vacuum apparatus
A negative pressure device and negative pressure technology, applied in the direction of pump control, mechanical equipment, pump/compressor arrangement, etc., can solve problems such as failure of negative pressure supply, and achieve simple design, best effect and strong effect Effect
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[0034] figure 1 A device 1 for controlling a vacuum device 2 of a pneumatic servo unit such as, for example, a vacuum brake booster 3 of a motor vehicle is shown. The vacuum device 2 has a vacuum accumulator 4 which is fluidically connected to a brake booster 3 which is activated by a brake pedal 5 . The negative pressure accumulator 4 is also fluidly connected to the intake manifold (not shown) of the motor vehicle engine. A line branches off from this connecting line to a pump 6, for example an electric suction pump. Usually a check valve is provided in the above connection line and only allows flow from said negative pressure accumulator 4 to said intake line. The pump 6 can apply negative pressure to the negative pressure accumulator 4 .
[0035] Airflow and its direction are indicated by arrows in the fluid lines. The negative pressure device 2 includes the negative pressure accumulator 4, the pump 6 and the fluid pipeline.
[0036] A controller 7 , such as for examp...
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