摘要:
The invention relates to a method for improving the drivability of a motor vehicle (100; 110) with a driveline. The method comprises the step of comparing a first signal (S3; S3*) with a second signal (S4), where the first signal (S3; S3*) contains information about a torque (TQ-max; TQ-maxmod ) which can be generated by an engine (230) of the vehicle (100; 110) at a prevailing speed (RPMmom ) of the engine (230), and the second signal (S4) contains information about a torque (TQ-req ) requested from the engine. The method comprises also the step of selecting an engagement speed (RPMin) of the engine (230) for an automated clutch (235) in the driveline of the vehicle (100; 110) on the basis of said comparison between the first signal (S3; S3*) and the second signal (S4). The invention relates also to a system for improving the drivability of a motor vehicle and a computer programme product comprising programme code (P) for a computer (200; 210) for implementing a method according to the invention. The invention relates also to a device and a motor vehicle equipped with the system.
摘要:
An illustrative example vehicle torque control system includes a clutch that is at least partially automatically controllable. A manual clutch control means allows a driver to control engagement of the clutch. A clutch control means automatically controls a characteristic of clutch engagement based on a selected drive mode.
摘要:
A transmission control system includes an up-shifting operation device, a clutch actuator (4), a shift actuator (7) and a CPU (52). The CPU (52) controls the clutch actuator (4) to start a disconnection operation of a clutch (3) at a time point when movement of an operation lever of the up-shifting operation device is started. Moreover, the CPU (52) controls the clutch actuator (4) to complete the disconnection operation of the clutch (3) at a time point when the movement of the operation lever is finished. Then, the CPU (52) shifts a gear position of a transmission (5) by controlling the shift actuator (7).
摘要:
The invention relates to a method and to a device for closing a clutch (102) having at least one previously known sensing point position. The clutch is closed in accordance with a speed profile, the course of which depends on at least one of the previously known sensing point positions.
摘要:
To supply a clutch control system for a transmission capable of appropriately performing preparations for driving of a plurality of hydraulic clutches, at an engine starting time. Upon detection of an engine starting operation, the AMT control unit (18) performs an initial preparatory operation in which the oil pressures are supplied into the oil passages (52 and 53) at different timings so as to fill up the oil passages with a working oil, thereby completing the preparations for driving of the clutches. When such a setting is made, the period of time taken for a first speed gear to become usable is shortened, whereby a swift vehicle starting after the starting of the engine can be achieved.
摘要:
The present invention relates to a method of changing gears in an automated manual transmission unit of a vehicle, said transmission including a friction clutch (54) and a dog-clutch-type transmission (80), said method comprising a gear change assist control of the friction clutch, in that, while the vehicle is stopped, the friction clutch (54) is connected at a first speed, and upon reaching a reference clutch position, the friction clutch is further connected at a second speed lower that the first speed to establish a dog-contact condition to apply a rotational driving force to a follower side of the friction clutch so that a first gear (57a) and a second gear (57b) of a dog-clutch-type transmission (80) can rotate relative to each other, wherein after the gear change is detected by a main shaft revolution sensor during the low-speed connection of the friction clutch (54), the disconnection of the friction of the clutch is started.
摘要:
Verfahren zur Plausibilisierung eines Referenzpunktes (9) eines Aktors (1) zur Betätigung einer Kupplung, umfassend mindestens einen, von einem Referenzpunkt (9) verschiedenen, Anschlag (10) zur Begrenzung der Bewegung des Aktors (1) in einer Bewegungsrichtung, mit den Verfahrensschritten: Referenzierung des Referenzpunktes (9), Verfahren des Aktors (1) in Richtung des Anschlags (10) um eine vorbestimmte Strecke, die geringer ist als die Strecke zwischen dem Referenzpunkt (9) und dem Anschlag (10), oder falls der Anschlag (10) vorher erreicht wird bis zum Anschlag (10), nochmaliges Referenzieren des Referenzpunktes (9).
摘要:
Es wird ein Verfahren zum Ansteuern des Kupplungsmomentes einer Kupplung eines automatisierten Getriebes in einem Antriebsstrang eines Fahrzeuges bei aktivierter Kriechfunktion vorgeschlagen, bei dem das Kupplungsmoment in Abhängigkeit des Schlupfes an der Kupplung und/oder in Abhängigkeit der Geschwindigkeit des Fahrzeuges angesteuert wird. Ferner wird eine Vorrichtung zum Ansteuern des Kupplungsmomentes einer Kupplung eines automatisierten Getriebes, insbesondere zum Durchführen des vorgenannten Verfahrens, vorgeschlagen, bei dem zumindest eine Steuereinrichtung vorgesehen ist, welche das Kupplungsmoment in Abhängigkeit des Schlupfes an der Kupplung und/oder in Abhängigkeit der Geschwindigkeit des Fahrzeuges ansteuert.