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US 6,318,815 B1Granted
Braking force boosting device, in particular for automotive vehicles
AssigneeContinental Teves AG & Co. oHG
InventorsKarlheinz Haupt, Hans Jörg Feigel, Horst Krämer
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Abstract
A braking pressure boosting device is suggested, in particular for automotive vehicles, which includes a boost sensor for sensing or identifying the point of maximum boosting of the braking pressure boosting device. By using the boost sensor, ad signal is generated reporting the point of maximum boosting. This invention permits the manufacture of high-performance braking force boosting devices requiring minimal space and opens up new potential for economizing.
Claims6
A braking force boosting device, comprising:
- an actuatable input member,
- an output member for applying a master brake cylinder,
- a control valve, actuatable by a valve piston and arranged in a control housing, for controlling the boosting energy generated as a result of a pressure difference between a chamber of variable pressure and a vacuum chamber,
- a boost sensor for sensing a point of maximum boost generated by the braking force boosting device, wherein said boost sensor generates a signal proportional to boost force, wherein said boost sensor senses a pressure difference between the chamber of variable pressure and the ambient pressure and further determines a change of the time derivative of the pressure in the chamber of variable pressure and wherein the boost sensor generates a signal reporting the point of maximum boosting whenever the pressure difference and the derivative of the pressure difference approaches zero.
1 more element
Dependencies are inferred from the claim text.