Antilocking system

Claim 2

An antilocking system for motor vehicles with a first and second sensor, which are coupled with the right and left-hand front wheel of the motor vehicle respectively and which supply a signal which corresponds to the speed of rotation of the respective wheel, and with a braking force control device, which reduces the braking force acting on a given front wheel when the relevant sensor provides a signal which indicates that the given front wheel is inclined to lock, wherein the braking force control device comprises an arrangement in the form of a pair of hydraulic circuits connected to respective ones of said sensors and a corresponding one of the rear wheels of the motor vehicle and means for generating a braking force, said hydraulic circuits being arranged independently of one another so that on the occurrence of a signal, which indicates that a given front wheel is inclined to lock, the braking force acting on the given front wheel is reduced and also the braking force acting only on the rear wheel located on the same side of the motor vehicle as the given front wheel.

Claim 3

An antilocking system for motor vehicles with a first and a second sensor, which are coupled with the right and left-hand front wheel of the motor vehicle respectively and which supply a signal which corresponds to the speed of rotation of the respective wheel, and with a braking force control device which reduces the braking force acting on a given front wheel when the relevant sensor provides a signal which indicates that the given front wheel is inclined to lock, wherein the braking force control device comprises an arrangement which on the occurrence of a signal, which indicates that a given front wheel is inclined to lock, reduces not only the braking force acting on the given front wheel but also the braking force acting only on the rear wheel located on the same side of the motor vehicle as the given front wheel, said arrangement including: a. a main braking cylinder which comprises a first and second pressure medium outlet for the braking of the front wheels and of the rear wheels respectively; b. a first and second pressure medium line which respectively comprise a blocking valve and are respectively connected with pressure medium lines for the braking of the front wheels and the rear wheels respectively; c. a first check valve which is arranged between the first pressure medium line and the pressure medium line of the brake of the right-hand front wheel; d. a second check valve which is connected between the second pressure medium line and the pressure medium line for the brake of the left-hand rear wheel; e. a first equalizing valve which is arranged between the pressure medium lines leading to the brake of the left-hand front wheel and the left-hand rear wheel respectively; f. a second equalizing valve which is connected between the pressure medium lines leading to the brake of the right-hand front wheel and the right-hand rear wheel; g. A device which opens the first equalizing valve when the first blocking valve closes; h. a device opens the second equalizing valve when the second blocking valve closes; and i. a device for actuating the blocking valves in accordance with the inclination to lock of the right-hand and/ or the left-hand front wheel.

Claim 4

An antilocking system for motor vehicles with a first and a second sensor, which are coupled with the right and left-hand front wheel of the motor vehicle respectively and which supply a signal which corresponds to the speed of rotation of the respective wheel, and with a braking force control device which reduces the braking force acting on a given front wheel when the relevant sensor provides a signal which indicates that the given front wheel is inclined to lock, wherein the braking force control device comprises an arrangement which on the occurrence of a signal, which indicates that a given front wheel is inclined to lock, reduces not only the braking force acting on the given front wheel but also the braking force acting only on the rear wheel located on the same side of the motor vehicle as the given front wheel, said arrangement including: a. a main braking cylinder which comprises a first and second pressure medium outlet for the braking of the front wheels and of the rear wheels respectively; b. a first and second pressure medium line which respectively comprise a blocking valve and are respectively connected with pressure medium lines for the braking of the front wheels and the rear wheels respectively; c. a first check valve which is arranged between the first pressure medium line and the pressure medium line of the brake of the right-hand front wheel; d. a second check valve which is connected between the second pressure medium line and the pressure medium line for the brake of the left-hand rear wheel; e. a first equalizing valve which is arranged between the pressure medium lines leading to the brake of the left-hand front wheel and the left-hand rear wheel respectively; f. a second equalizing valve which is connected between the pressure medium lines leading to the brake of the right-hand front wheel and the right-hand rear wheel; g. A device which opens the first equalizing valve when the first blocking valve closes; h. a device opens the second equalizing valve when the second blocking valve closes; and i. a device for actuating the blocking valves in accordance with the inclination to lock of the right-hand and/ or the left-hand front wheel.

Claim 5

An antilocking system in accordance with claim 2, wherein said arrangement further includes a delay arrangement which ensures that each equalizing valve opens a certain time after the closing of the associated blocking valve.