Hydraulic Unit and Control Units for Hydraulic Brake Systems

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.

1 . A hydraulic unit for a hydraulic brake system, the hydraulic unit comprising:
 a hydraulic block; and   at least one valve apparatus comprising:
 a hydraulic cartridge with a valve seat and a displaceable closing body configured to block and release 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; and 
 a permanent magnet configured to assist the displacement of the closing body via the magnetic force. 
   
     
     
         2 . The hydraulic unit as claimed in  claim 1 , wherein the valve apparatus is integrated at least partially into the hydraulic block. 
     
     
         3 . The hydraulic unit as claimed in  claim 1 , wherein the magnet assembly is retained in the hydraulic block by a direct connection. 
     
     
         4 . The hydraulic unit as claimed in  claim 1 , wherein the hydraulic cartridge is retained in the hydraulic block by the magnet assembly. 
     
     
         5 . The hydraulic unit as claimed in  claim 1 , wherein the magnet assembly is integrated into the hydraulic block in such a manner that a laminar thermal transmission from the magnet assembly to the hydraulic block is enabled. 
     
     
         6 . The hydraulic unit as claimed in  claim 1 , wherein the magnet assembly bears substantially in a gap-free manner against the hydraulic block. 
     
     
         7 . The hydraulic unit as claimed in  claim 1 , wherein a thermal transition between the magnet assembly and the hydraulic block is formed by two defined, thermally conducting materials. 
     
     
         8 . The hydraulic unit as claimed in  claim 1 , wherein a thermal conductivity-optimizing medium is arranged between the magnet assembly and the hydraulic block. 
     
     
         9 . A valve apparatus for a hydraulic unit as claimed in  claim 1 , wherein the valve apparatus is configured as a premountable assembly. 
     
     
         10 . A control unit for a hydraulic unit of a hydraulic brake system, the hydraulic unit including a hydraulic block and 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, and (iii) a permanent magnet configured to assist the displacement of the closing body bia the magnetic force, the control unit comprising:
 a control configured to control the magnet assembly.   
     
     
         11 . The control unit as claimed in  claim 10 , wherein the control unit is connected directly to the hydraulic block. 
     
     
         12 . The control unit as claimed in  claim 11 , wherein a side of the control unit which bears against the hydraulic block is substantially flat. 
     
     
         13 . The control unit as claimed in  claim 11 , wherein the control unit is connected directly to the hydraulic block without spatially accommodating the magnet assembly or encompassing the magnet assembly. 
     
     
         14 . The control unit as claimed in  claim 12 , wherein the side of the control unit which bears against the hydraulic block has no recesses for accommodating the magnet assembly. 
     
     
         15 . The hydraulic unit as claimed in  claim 2 , wherein the valve apparatus is fully integrated into the hydraulic block. 
     
     
         16 . The hydraulic unit as claimed in  claim 3 , wherein the magnet assembly is retained in the hydraulic block by caulking. 
     
     
         17 . The hydraulic unit as claimed in  claim 7 , wherein the two defined, thermally conducting materials are metals.