Abstract:
Die Erfindung betrifft ein Verfahren zum Steuern eines automatisierten Schaltgetriebes (5), das in einem Kraftfahrzeug (1) eingebaut ist, mehrere Vorwärtsgänge (G1, ..., G6) und wenigstens einen Rückwärtsgang (G_Rück) umfasst und für das durch einen Wählhebel unterschiedliche Fahrstufen (P, R, N, D) auswählbar sind. Das Verfahren zeichnet sich dadurch aus, dass in einer Parkstufe (P) bei einer bergauf gerichteten Orientierung des Kraftfahrzeugs (1) ein Vorwärtsgang (G1) eingelegt gehalten wird und bei einer bergab gerichteten Orientierung des Kraftfahrzeugs (1) anstelle des Vorwärtsgangs (G1) ein Rückwärtsgang (G_Rück) eingelegt gehalten wird.
Abstract:
The invention relates to a method and device for securely and comfortably operating a drive train of a motor vehicle, especially for operating a drive train with several clutches. An actuator of a clutch or an actuation part of a standard gear box is thus referred to; the neutral gear of the gear box is detected, actuation of the selected lever is controlled and clutches and gears of a twin-clutch transmission are controlled according to the state of the vehicle. The invention also relates to a method for examining and altering a circuit of a preselection gear of a compound coupling transmission.
Abstract:
The method for controlling the operation of a motor vehicle automatic transmission uses an additional gearbox (12) positioned between the main gearbox (8) and the vehicle wheels and actuates a parking brake lock using a selector which operates below a set speed or is switched in an operating position (N) in which the shaft can turn freely. Retraction of the key is prevented when the main gearbox is operative and the secondary gearbox is not operative.
Abstract:
During a period wherein a manual shift valve moves to a P gear range position after issuance of a D-to-P instruction instructing that a vehicle be stopped, an interior of an automatic transmission is interlocked. Specifically, the interior of the automatic transmission is interlocked by, in addition to engagement of a first clutch serving as a friction engagement element of a first gear range of the automatic transmission, by engaging a second brake causing an engine brake to act and a third brake forming a reverse gear range, and therefore, motion of the vehicle is prevented in a period between issuance of the P instruction instructing a vehicle stop operation, and actual shifting to the P gear range.
Abstract:
Die vorliegende Erfindung betrifft ein Kraftfahrzeug mit einem Automatikgetriebe mit über einen Wählhebel, der mit einem getriebeseitigen Positionssteller mechanisch gekoppelt ist erfolgenden manuellen Schaltbetätigung, wobei Mittel zum automatischen Schalten des Automatikgetriebes (1) in eine Parksperrenstellung in Abhängigkeit wenigstens eines Betriebsparameters (S 1 , S 2 ) vorgesehen sind.
Abstract:
The invention relates to measures for controlling or reducing drag torque occurring in a multi-plate clutch device (202) due to temperature-related increased viscosity of an operating fluid which is supplied to the plates in operation. The aim of the invention is to enable a motor vehicle to be started or operated even at low temperatures. According to one aspect of the invention, a motor vehicle comprising a drive train is especially provided. Said drive train comprises a drive unit (238), a gearbox (330) having a first gearbox input shaft and a second gearbox input shaft, and a clutch (202) having a first clutch device which is associated with the first gearbox input shaft, and a second clutch device which is associated with the second gearbox input shaft, for transferring torque between the drive unit and the gearbox. Said clutch devices are embodied in the form of plate clutches to which an operating fluid can be supplied, especially a cooling oil, in order to operate the same. Said gearbox (330) is associated with an actuator device and a control device (316) for controlling the actuator device, the arrangement of which enables the gears associated with the first and second gearbox input shafts to be engaged and disengaged. According to the invention, the control device (316) is designed in such a way that at least one gear is automatically engaged by means of the actuator device (236), as a result of the clutch release of the vehicle.
Abstract:
When detecting based on detected information from a selected range detecting sensor 31 that a shift lever 17 is operated to shift to a parking range from any of the other ranges an electronic control unit 30 controls the operation of mechanical clutch mechanisms (first to fourth electric motors M1, M2, M3, M4) such that an input shaft 11 and an output shaft 12 are first connected to each other by way of a gear wheel pair corresponding to a gear ratio of a plurality of gear wheel pairs (first to sixth gear wheel pairs GP1 to GP6 and a reverse gear wheel train GRT) having different gear ratios which are provided between the two shafts 11, 12, and the two shafts 11, 12 are then connected to each other by way of another gear wheel pair corresponding to another gear ratio of the plurality of gear wheel pairs.