ARRANGEMENT AT A VEHICLE WITH A DIFFERENTIAL LOCK

• Main Author: AHLGREN, THOMAS
• Format: Patent
• Language: English; French
• Published: 14.06.2001
• Edition: 7
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

On a shaft between two drove wheels (6, 7), a motor vehicle has a differential gear, which has a differential lock that can be used to lock the two drive wheels relative to each other. To reduce the stress that the differential lock can be subjected to, there is a device (10) that, when the differential lock is engaged, senses the relative angle of rotation between the drive wheels and when this reaches a predetermined marginal value, one of the wheels is braked with the help of a control unit (11) in order to limit the relative rotation between the wheels. The outer wheel is braked when moving in a curve. Sur l'axe situé entre deux roues motrices (6, 7), un véhicule à moteur possède un engrenage différentiel comprenant un système de blocage du différentiel, utile pour bloquer les deux roues motrices l'une par rapport à l'autre. Afin de diminuer les contraintes auxquelles peut être soumis le système de blocage du différentiel, l'invention concerne un dispositif (10) qui, lors de la mise en prise du système de blocage du différentiel, détecte l'angle relatif de rotation entre les roues motrices, et lorsque cet angle atteint une valeur marginale déterminée, une unité de commande (11) provoque le freinage de l'une des roues (11), de manière à limiter la rotation relative entre les roues, la roue extérieure étant ainsi freinée lors du passage dans une courbe.