Hydraulic unit and control units for hydraulic brake systems
AssigneeRobert Bosch GmbH
InventorsHarald Speer, Edgar Kurz, Wolfgang Schuller
Life of this patent
Estimating the term…
Abstract
In a hydraulic unit, which is for a hydraulic brake system, that has a hydraulic block and at least one valve device, the valve device includes a hydraulic cartridge with a valve seat and with a movable closing body for blocking and opening the valve seat, and a magnet assembly with a magnet coil for generating a magnetic force for moving the closing body. The magnet assembly is integrated into the hydraulic block, and the valve device has a permanent magnet in order to assist the movement of the closing body by means of magnetic force.
Claims16
A hydraulic unit for a hydraulic brake system, the hydraulic unit comprising:
- a hydraulic block;
- and
- at least one valve apparatus including;
- a hydraulic cartridge with a valve seat and a displaceable closing body configured to block and unblock the valve seat;
- a magnet assembly with a magnet coil configured to generate a magnetic force that displaces the closing body, the magnet assembly being integrated into the hydraulic block;
- a movable magnetic armature carrying the closing body and configured to move in response to the magnetic force;
- a spring arranged to exert a pressure force on the movable magnetic armature toward the valve seat;
- and
- a permanent magnet configured to assist the displacement of the closing body via the magnetic force, said permanent magnet defining a perforation in which the spring is disposed, and said permanent magnet disposed within a magnet receiver defined in said movable magnetic armature.
A combination comprising:
- a hydraulic unit of a hydraulic brake system, the hydraulic unit including;
- a hydraulic block;
- at least one valve apparatus that includes;
- (i) a hydraulic cartridge with a valve seat and a displaceable closing body,
- (ii) a magnet assembly with a magnet coil configured to generate a magnetic force that displaces the closing body, the magnet assembly being integrated into the hydraulic block,
- (iii) a movable magnetic armature carrying the closing body and configured to move in response to the magnetic force;
- (iv) a spring arranged to exert a pressure force on the movable magnetic armature toward the valve seat;
- and
- (v) a permanent magnet configured to assist the displacement of the closing body via the magnetic force, said permanent magnet defining a perforation in which the spring is disposed, and said permanent magnet disposed within a magnet receiver defined in said movable magnetic armature;
- and
- a control unit including a control configured to control the magnet assembly.
Dependencies are inferred from the claim text.