Method and system for controlling change of gear ratio in a vehicle during a detected reduced grip

The present invention relates to a method for controlling change of gear ratio in a gearbox (103) of a vehicle (100), said gearbox (103) being arranged for transmitting power from a power source (101) to at least one drive wheel (113, 114) of said vehicle (100), said gearbox (103) comprising a plura...

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Bibliographische Detailangaben
Hauptverfasser:	BACKLUND, Tomas, KOURIE, Afram
Format:	Patent
Sprache:	eng
Schlagworte:	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 BLASTING CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a method for controlling change of gear ratio in a gearbox (103) of a vehicle (100), said gearbox (103) being arranged for transmitting power from a power source (101) to at least one drive wheel (113, 114) of said vehicle (100), said gearbox (103) comprising a plurality of selectable gear ratios, change of gear ratio being controlled by a vehicle control system, the vehicle further including a driver manoeuvrable means for requesting power from said power source. The method comprises the steps of: - detecting a reduced grip of at least one drive wheel of said vehicle, - determining whether driver manoeuvring of said driver manoeuvrable means for requesting power indicates a reduced grip, and - influencing a gear ratio changing operation in said gearbox (103) if driver manoeuvring of said driver manoeuvrable means for requesting power indicates a reduced grip.