DEF0013198MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration date: November 10, 1953. Advertised on November 24, 1955

GERMAN PATENT OFFICE

The invention relates to the arrangement of a clutch assembly with a cooperating with this Disengagement unit and aims to automatically control the engagement and disengagement process in motor vehicles, both for starting and for changing from Manual switching of the gear reduction. The arrangement achieves this effect through a novel combination of ίο well-known facilities.

It is known, on the one hand, to start off without operating the clutch pedal by using speed-dependent clutches, e.g. B. centrifugal clutches to effect. These clutches are simple and robust in construction and result in a very safe and smooth start-up process. Loosening such clutches at higher speeds, e.g. for the purpose of switching of the transmission to a different translation, but is only possible through a special actuation direction, that is z. B. possible by a foot lever via a release linkage.

On the other hand, it is known. Couplings of the usual design by auxiliary devices, such as z. B. by associated with the intake line of the engine vacuum apparatus by with oil pressure, air pressure, electromagnetic or electric motor-driven auxiliary equipment auto-

509 596/235

Claims (1)

F 13198 II / 63 c press malisch / ti. The control of such executions to automate the clutch process is carried out in different ways, / .. B. by connecting the control organs with the accelerator pedal or with a centrifugal force governing, by using the voltage change of the alternator, by actuating a gear shift lever] connected contact during the shifting process, etc. These well-known (en kinriclitiiiigen have proven to be quite useful for the automatic actuation of the clutch during the shifting process. This is the reason why the executions could not establish themselves in> \ vv practice. Hs is also known, an automatically operated centrifugal clutch with a suction air of the engine actuated release unit so unite. The actuation of the necessary in this case Valves are made by electrical current and appropriately arranged switches. This application however, has the disadvantage that the idling of the engine by arbitrary operation a switch can be influenced and thus disturbed. According to the invention, these difficulties are overcome by the combination of a centrifugal clutch assembly with an outside force betricbciK'ii Ausrüekaggix'gat eliminated. The start-up takes place through the fin coupling with centrifugal force, i.e. depending on the increase in speed of the motor, while the clutch is being disengaged for the purpose of shifting gears from the disengaging unit or by an electric motor. So it will be a fully automatic way of working The entire arrangement is achieved, which is safe and completely jolt-free during the start-up process. When the gearbox is switched, it is switched off very quickly and delayed to the desired extent Backward movement of the clutch at higher speeds. The. Control of the release unit can be carried out in a known manner by electrical means 4!) By actuating the gear shift lever the circuit belonging to the control unit for the release device is closed and so that the release process is triggered. In order to avoid that the So number of the centrifugal clutch lying speeds the .Ausrüekapparat is also operated, is the one needed to operate the controls Current at the changeover switch of the alternator is removed in such a way that under a certain rotational speed number · ■ preferably a little below the clutch speed the centrifugal clutch - the control element of the release device remains de-energized, so not appeals to. Instead of using the alternator regulator, you can separate the electrical circuit also by another apparatus that responds to the speed, e.g. B. a centrifugal governor, respectively. The movement of the Elichgcwichtc of the centrifugal clutch itself can lead to separation or closing the circuit. An exemplary embodiment of the subject matter of the invention is shown schematically in the drawing. The alternator 1 is connected by a line 2 connected to the gear shift lever 3. Another line 4 leads from the gear shift lever 3 to an electromagnetically operated control valve 5. The control valve 5 regulates the on and The air flows out into the cylinder 10 and thus the position of the piston 6 in the cylinder 10. The Piston 6 actuates clutch lever 7. In housing 8 there is a centrifugal clutch. The cylinder 10 is connected to the intake pipe of the engine by a pipe p. The mode of operation is as follows: The line 2 is at speeds of the engine, for example, below 600 rpm without current. This means that the clutch is only engaged and disengaged using the centrifugal clutch. If the speed of 600 rpm is exceeded, line 2 is energized. When actuated of the shift lever 3, the circuit 2, 4 (return line through the ground) is now closed. The cylinder ro is thus connected to the suction line of the engine through the pipe 9, and the clutch is disengaged; when releasing the shift lever 3 after switching over the control valve 5 is closed by the interruption of the circuit 2, 4, resulting in a separation of the cylinder 10 from the pipe 9 and connection with the atmosphere. 13 cylinder 10 is connected to the atmosphere at the same time, so that through the. Effect of the clutch springs the clutch is engaged. The desired delay in the coupling process is carried out in a known manner by throttling the inflow of atmospheric air. Pa τ ε ν τ α ν s ρ ρ. υ c π: Speed-dependent clutch, especially for motor vehicles, with an external force actuated, manually switchable release unit, the starting process being carried out by the speed-dependent clutch, while the release unit is actuated when changing gears, characterized in that the Switch for the release unit only responds from a certain speed upwards. Referred publications:
French Patent No. 779727;
U.S. Patent No. 2634839. 1 sheet of drawings © 509 596/235 11.55