The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 1984
Filed:
Feb. 17, 1982
Jozsef Ivony, Budapest, HU;
Istvan Ratsko, Budapest, HU;
Gyorgy Karaszy, Budapest, HU;
Jeno Madi, Budapest, HU;
Other;
Abstract
A anti-jackknifing device for a motor vehicle having two articulated units with a friction brake therebetween has a hydraulic control means for controlling the torque applied by the brake. A hydraulic sensor activating cylinder with two working spaces senses the jackknifing angle between the two units. A three-position four-way reversible valve is connected to the hydraulic brake activating cylinder, between a third port and a check valve and the valve in its first position connects its first and third ports and its second and fourth ports and in its second position connects its first and fourth ports and its second and third ports. A steering angle sensor is provided which determines the desired jackknifing angle therefor. In response to the deviation of the actual jackknifing angle from the desired jackknifing angle, the valve is actuated into its first position when the actual jackknifing angle is overdriven in the clockwise direction and into its second position when the actual jackknifing angle is overdriven in the counter-clockwise direction.