Abstract:
The invention relates to a method and device for determining the contact point of an automatic clutch of a vehicle having a driving engine, during which the contact point to be determined is established based on the torque difference between the established engine torque at the previous contact point and the engine idling torque.
Abstract:
The invention relates to a method and device for determining the contact point of an automatic clutch of a vehicle having a driving engine, during which the contact point to be determined is established based on the torque difference between the established engine torque at the previous contact point and the engine idling torque.
Abstract:
The invention relates to a method for adjusting the rotational angle position of the camshaft (3) of a reciprocating piston of an internal combustion engine in relation to the crankshaft (5). The crankshaft (5) is drivingly connected to the camshaft by means of an adjusting drive (1), which is embodied as a triple-shaft gear comprising a drive shaft which is fixed to the crankshaft, a drive shaft which is fixed to the camshaft and an adjusting shaft which is drivingly connected to an electromotor (4). A stop element is connected to the drive shaft and a counter-stop element is connected to the camshaft (3). The crankshaft rotational angle measuring signal and a position measuring signal for the rotational angle of the adjusting shaft are detected during the starting step of the internal combustion engine. A phase angle signal for the position of the rotational angle of the camshaft (3), based on the initial position, in relation to the camshaft (3) is determined with the aid of the rotational angle measuring signal, the position measuring signal and a gear variable of the triple-shaft gear . After the immobilisation of the crankshaft (5) and the camshaft (3) in a reference position in relation to each other and after the detection of the reference position, the phase angle in relation to the reference position is measured and is controlled to a target-value signal
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.