Operating device with gate shafts

Abstract

The invention relates to an operating device for a gearbox. Said operating device comprises a selector lever (1) with stable selector lever positions and a ratchet device with a ratchet element (9) and index gate (8). Said ratchet element (9) is connected to the selector lever (1). According to the invention, the actuation device is characterised in that the index gate (8) is arranged on a gate shaft (4) that can be rotated by an actuator. Said gate shaft (4) comprises at least one return groove (10) for the ratchet element (9) that is wound in a screw-like manner. Said ratchet element (9) can be guided into the target position from a start position by rotating (7) the gate shaft (4) along the return groove (10). Said selector lever positions can reflect the current shift state of the gear box, also in shift-by-wire-controlled gearboxes. A reliable optical and also tactile signal of the shifting state of the gearbox is obtained for the driver. Said operating device is constructively reliable, has a low energy consumption and minimal noise and is also compact.

Description

Technical field [0001] The present invention relates to a gear shift transmission (Gangwechselgetriebe) according to the preamble of claim 1, for example for a shift-by-wire operation Control device of automatic transmission Background technique [0002] The gear changing transmission of a motor vehicle is usually controlled or shifted by means of an operating device arranged in the driver's operating area (Griffbereich). Control elements such as gear lever or shift lever are usually used for this purpose The operating element is arranged, for example, between the front seats of the motor vehicle. [0003] The structural and especially ergonomic requirements for such operating devices for gear changing transmissions are diverse. For example, for safety and ergonomic reasons, in order to enable the driver to obtain (vermitteln) the true feeling of transmission operation, this type of control device is required to enable the driver to obtain the current information about the tran...

AI Technical Summary

Problems solved by technology

In addition, implementing the mechanical shift logic and the necessary shift locks—such as so-called keylock and shift locks, for example—is often expensive in the case of monostable selector levers. and requires a complex transmission for selectively blocking impermissible shift commands depending on the driving state of the motor vehicle, which is structurally complex and entails corresponding costs

[0012] In addition, the known operating devices designed in a monostable manner have the disadvantage that the driver has to get used to the new operating concept (with the lever always moved back to the neutral position), wherein this operating concept Obviously with a plurality of stable shift lever states (mitstabilen ) Traditional transmission manipulations are differentiated

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