BREMSKRAFTVERSTÄRKER MIT ZUSÄTZLICHER HYDRAULIK-HILFSKRAFT
A pneumatic-hydraulic hybrid pneumatic brake booster is improved. Additional hydraulic boosting ( 19, 20 ) provided by a hydraulic circuit is provided beyond a saturation point (Psat) in the operation of the pneumatic circuit. Hysteresis-induced instabilities in the pneumatic part of the booster are...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | German |
Published |
23.04.2009
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | A pneumatic-hydraulic hybrid pneumatic brake booster is improved. Additional hydraulic boosting ( 19, 20 ) provided by a hydraulic circuit is provided beyond a saturation point (Psat) in the operation of the pneumatic circuit. Hysteresis-induced instabilities in the pneumatic part of the booster are taken into consideration ( 50 ). A choice is made to compensate (A) for the shortfall in operation of the pneumatic circuit using the hydraulic circuit. In one example, this correction is afforded via a microprocessor which imposes a corrected process signal. Using this signal, pressure shifts in the pneumatic system are neutralized. |
---|---|
Bibliography: | Application Number: DE20016033413T |