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Anti-skid brake system for a vehicle

  • US 5,125,721 A
  • Filed: 02/14/1991
  • Issued: 06/30/1992
  • Est. Priority Date: 02/17/1990
  • Status: Expired due to Fees
First Claim
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1. A vehicle anti-skid control brake system having at least one first brake pressure line and at least one second brake pressure line via which a master brake cylinder communicates with wheel brake cylinders, at least one first directional control valve is incorporated into said at least one first brake pressure line for closing the at least one first brake pressure line in the event of an anti-skid control, at least one second directional control valve is incorporated into said at least one second brake pressure line for closing the at least one second brake pressure line in the event of an anti-skid control, said at least one first brake pressure line is assigned a first return pump which bypasses the at least one first directional control valve, said at least one second brake pressure line is assigned a second return pump which bypasses the at least one second directional control valve, said at least one first directional control valve is an at least one first magnetic controlled valve (9), which in a currentless state as well as if pressure is absent in said at least one first brake pressure line (4), blocks said at least one first brake pressure line (4) and communicates with a control unit (S) which triggers said at least one first magnetic controlled valve in pulsed fashion for opening said at least one first magnetic controlled valve, and said at least one second directional control valve is an at least one second magnetic control valve (10, 11), which in a currentless state as well as if pressure is absent in said at least one second brake pressure line (6a, 6b), blocks said at least one second brake pressure line (6a, 6b) and communicates with said control unit S which triggers said at least one second magnetic control valve in pulsed fashion for opening said at least one second magnetic valve.

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