CONTROL OF CHANGES BETWEEN FORWARD AND REVERSE GEARS IN A VEHICLE WITH AN AUTOMATED TRANSMISSION

FR3156102A1Inactive Publication Date: 2025-06-06STELLANTIS AUTO SAS
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Patent Information

Application Number
FR2023013422
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-01
Publication Date
2025-06-06
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

A method is implemented in a vehicle comprising an automated gearbox and comprising at least one primary shaft associated with a clutch and capable of being selectively coupled to a forward idler gear or a reverse idler gear, and a non-thermal prime mover capable of being coupled to this clutch to provide it with a torque depending on a machine speed. This method comprises a step (10-30) in which, when the primary shaft is coupled to one of the idler gears and a request for coupling to the other of these idler gears is received, the machine speed is reduced in order to reduce the difference between the speeds of the primary shaft and the other idler gear to be coupled, then a zero prime mover torque is imposed, to finalize the requested coupling to this other idler gear. Figure 3
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Citation Information

Patent Citations

  • Transmission control method at the time of straight transmission during backward drive of hybrid vehicle

    KR1020130011066A

  • A method for shifting to a reverse gear in a hybrid vehicle,a hybrid vehicle, a computer program for shifting to a reverse gear and a computer program product comprising program code.

    SE1550551A1