Vehicle braking system and procedures

The hydraulic pressure generator with a reciprocating piston and actuating unit addresses inefficiencies in conventional braking systems by enabling efficient hydraulic pressure generation and driver-independent braking, ensuring continuous pressure build-up and improved system responsiveness.

DE102010064759B4Undetermined Publication Date: 2026-06-25ZF ACTIVE SAFETY GMBH
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Patent Information

Application Number
DE102010064759P0
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2010-06-15
Publication Date
2026-06-25
Estimated Expiration
2030-06-15

AI Technical Summary

Technical Problem

Conventional vehicle braking systems face inefficiencies in hydraulic pressure build-up, particularly in regenerative and electro-hydraulic systems, where multi-piston pumps require numerous strokes and are not optimized for driver-independent braking interventions.

Method used

A hydraulic pressure generator with a piston and actuating unit, capable of reciprocating motion, is used to generate hydraulic pressure in both single-circuit and multi-circuit braking systems, allowing central or individual pressure adjustment, and can operate during service and system braking, incorporating an electric motor, gearbox, and check valves for efficient pressure control.

Benefits of technology

Enables efficient hydraulic pressure generation with reduced strokes, supports driver-independent braking functions, and ensures continuous pressure build-up without dead times, enhancing system responsiveness and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

Vehicle brake system (100) with multiple brake circuits, a master cylinder (114) and a hydraulic pressure generator (116) comprising a piston (136); a cylinder (134) slidably receiving the piston (136), wherein the piston (136) defines a first hydraulic chamber (142) and a second hydraulic chamber (144) in the cylinder (134) on opposite piston sides (138; 140), and wherein each hydraulic chamber (142, 144) has a hydraulic inlet (156, 158) and a hydraulic outlet (152, 154); an actuating unit (146;148), which is able to set the piston (136) into a reciprocating motion, such that an intake stroke with respect to the first hydraulic chamber (142) corresponds to an exhaust stroke with respect to the second hydraulic chamber (144) and vice versa, characterized by a switching valve device (118) which is configured to selectively couple either the hydraulic pressure generator (116) or the master cylinder (114) fluidically with a set of wheel brakes (106, 108, 110, 112), wherein the hydraulic pressure generator centrally generates a common hydraulic pressure for the brake circuits.;
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Citation Information

Patent Citations

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    DE102007047208A1

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    DE19638102C1

  • Damping controller for vehicles moving on steep path

    DE19851271A1

  • Operating device for electronically-controlled automobile hydraulic braking system has hydraulic chamber of master braking cylinder coupled to device for simulating brake pedal characteristics

    DE19950862C1

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    WO1998006612A1