DE102017219049A1 - Apparatus and method for selecting a function of a transmission for a vehicle - Google Patents

Abstract

A device (120) for selecting a function of a transmission (110) for a vehicle (100) is presented, wherein the device (120) can be connected to the transmission (110) in a manner capable of transmitting signals. The device (120) has a first actuating device (132) for a parking function of the transmission (110). In this case, the first actuating device (132) is designed to provide a first switching signal (133) in response to an actuation of a first actuating element (122). The first switching signal (133) represents a requested state change between an activated and a deactivated state of the parking function. Also, the device (120) on a second actuator (134) for speed functions of the transmission (110). Here, the second actuating device (134) is designed to provide a second switching signal (135) in response to an actuation of a second actuating element (124) and in a deactivated state of the parking function. The second switching signal (135) represents a requested gear step function.

Description

The present invention relates to a device for selecting a function of a transmission for a vehicle and to a corresponding method.

Switching units can be used in particular for automatic transmissions in which a parking function or parking position of the transmission is integrated into a shift pattern and can be selected, for example, by means of a multi-stable actuating element.

Against this background, the present invention provides an improved apparatus for selecting a function of a transmission for a vehicle and an improved method for selecting a function of a transmission for a vehicle according to the main claims. Advantageous embodiments will become apparent from the dependent claims and the description below.

In particular, according to embodiments of the present invention, a functional separation between an operation for selecting and deselecting a parking function and an operation for selecting a driving stage of a transmission for a vehicle can be realized. In this case, for example, a signal that represents an activation and deactivation of the parking function, with regard to a signal processing for controlling the transmission priority over signals for the selection of driving levels are granted. Thus, a park position of the transmission can be selected in particular from each gear stage of the transmission by operating a specific for the parking function actuator.

Advantageously, according to embodiments of the present invention, for example, a function of a transmission can be selected while maintaining increased safety requirements, in particular the safety requirement ASIL-D (ASIL = Automotive Safety Integrity Level). Thus, already a design ago safety can be increased, so-called safety-by-design. Such a device, and thus also a transmission connected to such a device, can be operated safely even for users who, for example, read a user manual, know a transmission or vehicle and have little or no technical affinity. The parking function can be achieved, for example, safely and reliably from any drive level out. Thus, the vehicle can be secured against unintentional rolling away. The parking function can also be selected safely if, for example, a driver of the vehicle remains in the vehicle and thus does not resort to other security concepts. In some vehicles and additionally or alternatively in some regions, for example, an ignition key can only be removed in the parking position of the transmission, which can thus be facilitated. A user can rely in particular on the fact that activation of the parking function is reliably detected and implemented. Thus, according to embodiments of the present invention, advantageously, an operator's guide can be executed clearly, safely and intuitively correctly.

• eine erste Betätigungseinrichtung für eine Parkfunktion des Getriebes, wobei die erste Betätigungseinrichtung ausgebildet ist, um ansprechend auf eine Betätigung eines ersten Betätigungselements ein erstes Schaltsignal bereitzustellen, wobei das erste Schaltsignal einen angeforderten Zustandswechsel zwischen einem aktivierten und
• einem deaktivierten Zustand der Parkfunktion repräsentiert; und
• eine zweite Betätigungseinrichtung für Fahrstufenfunktionen des Getriebes, wobei die zweite Betätigungseinrichtung ausgebildet ist, um ansprechend auf eine Betätigung eines zweiten Betätigungselements und in einem deaktivierten Zustand der Parkfunktion ein zweites Schaltsignal bereitzustellen, wobei das zweite Schaltsignal eine angeforderte Fahrstufenfunktion repräsentiert.

A device for selecting a function of a transmission for a vehicle is presented, wherein the device can be connected to the transmission in a signal transmitting manner, the device having the following features:

• a first actuation device for a parking function of the transmission, wherein the first actuation device is designed to provide a first actuation signal in response to actuation of a first actuation element, the first actuation signal requesting a change of state between an activated actuation signal
• represents a deactivated state of the parking function; and
• a second actuator for speed functions of the transmission, wherein the second actuator is configured to provide a second switching signal in response to actuation of a second actuator and in a deactivated state of the parking function, wherein the second switching signal represents a requested speed step function.

The vehicle may be a motor vehicle, for example a passenger car, truck or other commercial vehicle. The transmission may be an automatic transmission. A connection between the device and the transmission may be electronic. In this case, the device and the transmission can be functionally signal transmission capable of being connected to each other while avoiding mechanical connection parts. By actuating the first actuating element, a state change from the activated state to the deactivated state of the parking function or from the deactivated state to the activated state of the parking function can be requested. A first actuation of the first actuating element may represent a requested state change from the activated state to the deactivated state of the parking function. A subsequent, second actuation of the first actuating element can represent a requested state change from the deactivated state to the activated state of the parking function. The second actuator may be configured to to provide the second switching signal only in the deactivated state of the parking function.

The device may include a controller. In this case, the first actuating device and the second actuating device may be parts of the control device.

A controller may be an electrical device that processes electrical signals, such as sensor signals, and outputs control signals in response thereto. The control unit may have one or more suitable interfaces, which may be formed in hardware and / or software. For example, in a hardware configuration, the interfaces may be part of an integrated circuit in which functions of the device are implemented. The interfaces may also be their own integrated circuits or at least partially consist of discrete components. In a software training, the interfaces may be software modules that are present, for example, on a microcontroller in addition to other software modules.

According to one embodiment, the first actuating device may be configured to provide the first switching signal for activating the parking function independently of the second switching signal and additionally or alternatively with higher priority than the second switching signal. Such an embodiment has the advantage that the parking function can be reliably and safely selected independently of which gear speed was previously selected, if appropriate.

Also, the second actuator may be configured to block the second switching signal in an activated state of the parking function. Additionally or alternatively, the second actuating element may be disabled or deactivated in the activated state of the parking function. Such an embodiment offers the advantage that leaving the parking function can be initiated only by actuation of the first actuating element. Thus, an accidental leaving the parking position of the transmission can be prevented by accidental operation of the second actuating element.

Furthermore, the first actuating element and the second actuating element can structurally and additionally or alternatively be arranged spatially separated from one another. In this case, the actuating elements can be arranged so separated from each other that when operating an actuating element inadvertent actuation of the other actuating element can be excluded. Such an embodiment offers the advantage that a security against unintentional deactivation of the parking function can be further increased.

According to one embodiment, the first actuating element may be designed as a key. In this case, the first actuating element can be mechanically decoupled from an actuation of the second actuating element. Thus, a movement of the second actuating element upon actuation thereof can leave a moving state of the first actuating element untouched. Such an embodiment offers the advantage that a simple and reliable activation and deactivation of the parking function can be made possible.

In addition, the second actuating element can be designed as a monostable actuating element. In this case, the second actuating element can be designed in particular as a slide, lever or rotary switch. Such an embodiment offers the advantage that, with regard to a purely electronic connection between the device and the transmission, an uncertainty can be avoided in order to determine whether or not the transmission follows a selector lever position, for example.

The device can also have a lighting device for effecting illumination of at least one luminous element. In this case, the at least one luminous element may be assigned to the first actuating element and additionally or alternatively to the second actuating element. The lighting device may be part of the control unit. Such an embodiment offers the advantage that when operating or selecting transmission functions, visual user guidance can be facilitated.

In this case, the illumination device can be designed to effect illumination by means of the at least one luminous element, which represents a selected function of the transmission based on the selected function possible selectable functions and additionally or alternatively a backlight for the actuators. Such an embodiment offers the advantage that an understanding of a user for a selection of transmission functions can be simplified. In addition, visibility and safety in operating the device can be increased.

Furthermore, the second actuating element may have an unlocking unit. In this case, the unlocking unit can be designed to release an actuation of the second actuating element in response to an unlocking by a user. The unlocking unit may have at least one mechanical component. Such an embodiment offers the advantage that a Safety against an accidental change of driving levels can be increased.

• Einlesen eines ersten Betätigungszustands oder eines zweiten Betätigungszustands von einer Eingangsschnittstelle zu dem ersten Betätigungselement und dem zweiten Betätigungselement, wobei der erste Betätigungszustand ein erstes Betätigungssignal zum Aktivieren der Parkfunktion repräsentiert, wobei der zweite Betätigungszustand ein erstes Betätigungssignal zum Deaktivieren der Parkfunktion und ein zweites Betätigungssignal zum Anfordern einer Fahrstufenfunktion repräsentiert;
• Erzeugen zumindest eines der Schaltsignale ansprechend auf einen der Betätigungszustände, wobei das erste Schaltsignal ansprechend auf den ersten Betätigungszustand erzeugt wird, wobei das erste Schaltsignal und das zweite Schaltsignal ansprechend auf den zweiten Betätigungszustand erzeugt werden; und
• Bereitstellen des ersten Schaltsignals und/oder des zweiten Schaltsignals an eine Ausgangsschnittstelle zu dem Getriebe, um die Funktion des Getriebes auszuwählen.

A method is also presented for selecting a function of a transmission for a vehicle, the method being executable in connection with an embodiment of the aforementioned device, the method comprising the following steps:

• Reading in a first actuation state or a second actuation state from an input interface to the first actuation element and the second actuation element, the first actuation state representing a first actuation signal for activating the parking function, the second actuation state including a first actuation signal for deactivating the parking function and a second actuation signal for requesting represents a speed step function;
• Generating at least one of the switching signals in response to one of the operating conditions, wherein the first switching signal is generated in response to the first operating state, wherein the first switching signal and the second switching signal are generated in response to the second operating state; and
• Providing the first switching signal and / or the second switching signal to an output interface to the transmission to select the function of the transmission.

In this case, at least a third operating state can be read in the step of reading. The third actuation state may represent a second actuation signal for requesting a drive step function when the parking function is deactivated. In response to the third operation state, the second switching signal may be generated in the step of generating.

Also of advantage is a computer program product with program code which can be stored on a machine-readable carrier such as a semiconductor memory, a hard disk memory or an optical memory and is used to carry out the method according to one of the embodiments described above, when the program is on a computer or a control unit is performed.

• 1 eine schematische Darstellung eines Fahrzeugs mit einem Getriebe und einer Vorrichtung gemäß einem Ausführungsbeispiel;
• 2 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel;
• 3 eine schematische Darstellung des zweiten Betätigungselements aus 2;
• 4 ein Markov-Diagramm möglicher Zustandswechsel zwischen Funktionen eines Getriebes in Verbindung mit einer Vorrichtung gemäß einem Ausführungsbeispiel;
• 5 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel in einem ersten Zustand eines Betätigungszyklus;
• 6 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel in einem zweiten Zustand eines Betätigungszyklus;
• 7 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel in einem dritten Zustand eines Betätigungszyklus;
• 8 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel in einem vierten Zustand eines Betätigungszyklus;
• 9 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel in einem fünften Zustand eines Betätigungszyklus;
• 10 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel in einem sechsten Zustand eines Betätigungszyklus;
• 11 eine schematische Darstellung von Betätigungselementen einer Vorrichtung gemäß einem Ausführungsbeispiel;
• 12 eine schematische Darstellung der Betätigungselemente aus 11; und
• 13 ein Ablaufdiagramm eines Verfahrens zum Auswählen gemäß einem Ausführungsbeispiel.

The invention will be described by way of example with reference to the accompanying drawings. Show it:

• 1 a schematic representation of a vehicle with a transmission and a device according to an embodiment;
• 2 a schematic representation of actuators of a device according to an embodiment;
• 3 a schematic representation of the second actuating element 2 ;
• 4 a Markov diagram of possible state changes between functions of a transmission in connection with a device according to an embodiment;
• 5 a schematic representation of actuators of a device according to an embodiment in a first state of an actuation cycle;
• 6 a schematic representation of actuators of a device according to an embodiment in a second state of an actuation cycle;
• 7 a schematic representation of actuators of a device according to an embodiment in a third state of an actuation cycle;
• 8th a schematic representation of actuators of a device according to an embodiment in a fourth state of an actuation cycle;
• 9 a schematic representation of actuators of a device according to an embodiment in a fifth state of an actuation cycle;
• 10 a schematic representation of actuators of a device according to an embodiment in a sixth state of an actuation cycle;
• 11 a schematic representation of actuators of a device according to an embodiment;
• 12 a schematic representation of the actuators 11 ; and
• 13 a flowchart of a method for selecting according to an embodiment.

Before embodiments of the present invention will be described in more detail below, first background and principles of embodiments will be briefly explained.

First, it can be shown on the basis of experience from driving schools on the example of full braking that learner drivers basically braking to slow down a vehicle and a Learn execution and effect of full braking. In everyday experience, it turns out that the reaction that leads to an emergency stop is not an act of conscious decision (cognition) as a result of learned knowledge, as is known, for example, from the basic operations that can be performed with arbitrary numbers, but only after a process of reflection. In fact, a frantic panic is a practiced reflexive behavior that leads to the right action without conscious thought. Similar patterns of behavior attack the sense of balance or eyelid reflex. They are firmly anchored as patterns of behavior and function reliably. From sports in which a direct duel with the opponent takes place, eg. As ball games, martial arts, etc., such automated reactions or reflexive action by regular practice and achieved after some time. The example of emergency braking mentioned at the beginning shows a simple alternative to lengthy learning: when a brake is often used to slow down a vehicle, this behavior changes from a consciously controlled behavior to a reflexive behavior. It does not matter that the brake in most everyday situations, moderate or not at all, z. B. at braking readiness, is operated. A learning effect can still arise. An aim of embodiments of the present invention is therefore to provide a concept which can exclude inexperienced by inexperienced drivers or first-time users a misuse and with frequent use can establish reliable reflex reflexes and train by inevitability of the control concept.

In the following description of preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various figures and similarly acting, wherein a repeated description of these elements is omitted.

1 shows a schematic representation of a vehicle 100 with a gear 110 and a device 120 according to an embodiment. In the vehicle 100 it is a motor vehicle, such as a passenger car or a commercial vehicle. The gear 110 is designed as an automatic transmission. The gear 110 is electronic or signal transmission capable with the device 120 connected. The device 120 is designed to be a function of the transmission 110 select or a selection of a function of the transmission 110 in response to user action.

The device 120 has a first actuating device 132 and a second actuator 134 on. Here are the first actuator 132 and the second actuator 134 Part of a control unit 130 the device 120 , The first actuating device 132 and the second actuator 134 are connected to each other so that they can communicate. Also, the device has 120 a first actuating element 122 and a second actuator 124 on. The actuators 122 and 124 are signal transmitting with the control unit 130 or the actuating devices 132 and 134 connected. According to the embodiment shown here is the control unit 130 or are at least the actuators 132 and 134 via an input interface 138 signal transmission capability with the actuators 122 and 124 connected. Further, the controller 130 or are at least the actuators 132 and 134 via an output interface 139 signal transmission capable with the transmission 110 connected.

The first actuator 122 is operable to a parking function of the transmission 110 to activate and deactivate or to request a state change between an activated and a deactivated state of the parking function. In this case, the first actuating element 122 configured to receive a first actuation signal in response to an actuation 123 issue.

The second actuator 124 is operable to one of several gear functions of the transmission 110 to request. Here is the second actuator 124 configured to receive a second actuation signal in response to an actuation 125 issue.

The first actuating device 132 is for the parking function of the transmission 110 intended. The first actuating device 132 is configured to be responsive to the actuation of the first actuator 122 a first switching signal 133 provide. The first switching signal 133 represents the by user-side actuation of the first actuating element 122 requested state change between the activated and deactivated state of the parking function. The state change is by repeated actuation of the first actuator 122 bidirectionally possible. The first actuating device 132 is configured to the first actuation signal 123 from the input interface 138 and, depending on a processing instruction, generate the first switching signal and at the output interface 139 provide.

The second actuator 134 is for gear functions of the gearbox 110 intended. The second actuator 134 is adapted to be responsive to the actuation of the second actuating element 124 and in a deactivated state of the parking function, a second switching signal 135 provide. The second switching signal 135 represents the user-side actuation of the second actuator 124 requested gear function of the gearbox 110 , The second actuator 134 is configured to the second actuation signal 125 from the input interface 138 read and dependent on a processing instruction and the first actuation signal 123 the second switching signal 135 to generate and at the output interface 139 provide.

According to one embodiment, the first actuating device 132 trained to the first switching signal 133 for activating the parking function independently of the second switching signal 135 and / or higher priority than the second switching signal 135 provide. Also, according to one embodiment, the second actuator 134 configured to be in an activated state of the parking function, the second actuation signal 125 to ignore or the second switching signal 135 to block. Additionally or alternatively, in this case, the second actuating element 124 locked or deactivated in the activated state of the parking function. Furthermore, the first actuating element 122 and the second actuating element according to an embodiment 124 structurally and / or spatially separated.

According to the in 1 illustrated embodiment of the present invention comprises the device 120 also a lighting device 136 on. The lighting device 136 is part of the control unit 130 , The lighting device 136 is designed to illuminate at least one luminous element 126 to effect. Thus, the device 120 also at least one light element 126 on. The at least one luminous element 126 is the first actuator 122 and / or the second actuating element 124 assigned. In the presentation of 1 is merely an example of a lighting element 126 shown. The lighting device 136 is formed to by means of the at least one luminous element 126 to cause a lighting, which is a selected function of the transmission 110 , based on the selected function possible selectable functions and / or a backlight for the actuators 122 and 124 represents. This is the lighting device 136 trained to receive a lighting signal 137 to the light element 126 issue.

2 shows a schematic representation of actuators 122 and 124 a device according to an embodiment. The actuators 122 and 124 correspond or resemble the actuators of the device 1 , According to the in 2 illustrated embodiment of the present invention is the first actuator 122 as a key. In this case, the first actuating element 122 from an actuation of the second actuating element 124 mechanically decoupled. The second actuator 124 is designed as a monostable actuator. In this case, the second actuating element 124 designed as a selector lever, slider or the like with a knob.

Further, according to the embodiment of the present invention shown here, a plurality of lighting elements 126 shown. Each of the lighting elements 126 corresponds or resembles the light element 1 , The second actuator 124 is in an area of a cover 224a movable along a movement axis. The cover 224a is elongated. The first actuator 122 is adjacent to a narrow side of the cover 224a arranged. Further, adjacent to a long side of the cover 224a a circuit diagram 224b arranged for speed levels or speed functions. On the knob of the second actuator 124 are two lighting elements 126 arranged to illuminate arrowhead symbols for directions of movement along the axis of motion. On the first actuator 122 is a lighting element 126 to illuminate a symbol P arranged for the parking function. In the circuit diagram 224b are merely exemplary five light element 126 to illuminate symbols R . N . D . 2 and 1 arranged for driving steps.

3 shows a schematic representation of the second actuating element 124 out 2 , Here is the second actuator 124 presented from a different perspective. On the knob of the second actuator 124 are the lighting elements 126 shown. Furthermore, an unlocking unit of the second actuating element 124 shown. The unlocking unit 324c is configured to actuate the second actuating element in response to unlocking by a user 124 release. In this case, the unlocking unit 324c realize a so-called unlock function.

With particular reference to 2 and 3 is summarized below and in other words an actuation of the actuators 122 and 124 briefly explained.

When pressed, this is a key and a P symbol with a light element 126 having first actuating element 122 to activate and deactivate the parking function. In the area of the cover 224a is that as Lever or slider with knob executed second actuator 124 movable, for example, in the circuit diagram 224b insert illustrated driving levels. The by light elements 126 illuminated arrowheads or triangles in the knob of the second actuator 124 each shine in the direction in which the second actuator 124 can be moved to select a different gear. The second actuator 124 has at its knob the unlocking unit 324c or a switch for the unlock function. The unlocking unit 324c is here transverse to an actuating axis or axis of movement of the second actuating element 124 operable, for example, by pulling in the direction away from the cover 224a , The group of speed steps or speed functions in the circuit diagram 224b may according to another embodiment, for example, have other or further symbols. A user is illuminated by the lighting elements 126 guided. Along with a sequence of speed steps in the circuit diagram 224b and the lighting elements 126 for example, on the knob of the second actuating element 124 is visible to the user in which direction can be switched or which functions of the transmission are selectable.

In other words, a separate P button is the first actuator 122 and another option, in which at least driving levels R . N and D , as well as other optional functions such as M, M +, M-, slow driving for downhill or sport modes may be included, as a second actuator 124 intended. The parking function can only by pressing the first actuator 122 and according to the embodiment shown here by subsequent actuation of the unlocking unit 324c be deactivated or left. In order to deactivate the parking function and select a driving step, according to one embodiment the user may be required to perform three actions: pressing the first actuating element 122 or the key P , Embracing the knob of the executed as a lever second actuating element 124 and pulling or actuating the unlocking unit 324c , A simple pressure on the first actuator 122 or the P key is enough to leave any other gear and select the parking function reliably. The symbols of the other speed levels remain dimmed until the parking function is properly deactivated as described above. Only then is a speed control on the second actuator 124 transfer.

4 shows a Markov diagram 400 possible state change between functions of a transmission in connection with a device according to an embodiment. Here is the Markov diagram 400 in particular with regard to state change in connection with the device of one of the above-described figures or a similar device in combination with the actuating elements 2 or. 3 valid.

In the Markov diagram 400 are the parking functions as states P , the driving steps R and N and others, other or additional driving steps 405 as placeholder for possible driving steps D , M, 2, 1 and / or the like drawn. Further, in the Markov diagram 400 also illustrates the possible state changes or permissible transitions between the functions of the transmission. Here the symbol represents P an actuation of the first actuating element, U represents an actuation of the unlocking unit or unlock function and S represents an operation by pushing or displacing the second actuating element.

From all driving levels R . N and 405 is towards the parking function P the state change simply P. Thus, from all driving steps R . N and 405 by actuating the first actuating element, the parking function P to be selected. From the parking function P is towards one of the driving steps R or N the state change in each case P & U. Thus, the parking function P for a selection of driving levels R or N be left by actuating the first actuating element and the unlocking unit. For a change between the driving levels R . N and 405 in each case at least a sliding of the second actuating element is required as a state change S, wherein for some of these speed level change is required as state change U & S, as shown in 4 is shown.

5 to 10 show states in the context of an actuation cycle in conjunction with actuators of a device according to an embodiment. The actuation cycle is in this case in conjunction with the actuators 122 and 124 out 3 or the device 1 executable.

5 shows a schematic representation of the actuators 122 and 124 out 3 in a first state of the actuation cycle. Here, the representation corresponds to 5 the presentation 3 with the exception that only active or glowing copies of the lighting elements 126 are explicitly designated, here only the light element 126 which is the first actuating element 122 assigned.

In the first state of the actuation cycle, the parking function is activated, which is the case for example after a start of the vehicle. Lighting elements for the speed steps in the circuit diagram 224b and for the directional indicators on the knob of the second actuator 124 are dimmed or switched off. In the first state, each movement or actuation of the second actuating element 124 ignored. This also represents a simple parental control.

6 shows a schematic representation of the actuators 122 and 124 out 3 in a second state of the actuation cycle. Here, the representation corresponds to 6 the presentation 5 with the exception that after actuation of the first actuating element 122 and the unlocking unit only the drive level N and the direction indicators by means of the lighting elements 126 are lit up. N is according to the embodiment shown here, the first drive level, after the parking function P was deactivated or left.

7 shows a schematic representation of the actuators 122 and 124 out 3 in a third state of the actuation cycle. The representation in 7 corresponds to the illustration 6 with the exception that after an actuation of the second actuating element 124 to select the gear level R now in the circuit diagram 224b only this gear R by means of a luminous element 126 is lit. The direction indicators on the second actuator 124 stay illuminated during the operation.

8th shows a schematic representation of the actuators 122 and 124 out 3 in a fourth state of the actuation cycle. The illustration corresponds to 8th the presentation 7 with the exception that only one of the direction indicators on the second actuator 124 is lit, as with valid selected gear R in the light of the wiring diagram 224b only a movement of the second actuating element 124 leading in one direction to a valid selection of another gear.

9 shows a schematic representation of the actuators 122 and 124 out 3 in a fifth state of the actuation cycle. The representation in 9 corresponds to the illustration 8th except that after a change of gear of R to D in the circuit diagram 224b only the symbol for the driving level D is lit and now again both direction indicators on the knob of the second actuator 124 are lit up. For such a change, the second actuator 124 actuated in a suitable manner, for example, when actuated unlocking unit shifted by a distance corresponding to two speed steps.

10 shows a schematic representation of the actuators 122 and 124 out 3 in a sixth state of the actuation cycle. The representation in 10 corresponds to the illustration 5 , From the in 9 starting from the fifth state, the in 10 shown sixth state reached in which the first actuating element 122 is pressed. Optionally, for this purpose, the first actuating element 122 and the unlocking unit are operated. Thus, the parking function is easy and reliable reachable.

Regular training or passing through at least parts of the actuation cycle, wherein the first actuator 122 Always be used for activating and deactivating the parking function, brings the user or driver to a proper or correct use.

11 shows a schematic representation of actuators 122 and 124 a device according to an embodiment. The actuators 122 and 124 correspond or resemble the actuators of the device 1 , Furthermore, the actuators resemble each other 122 and 124 the actuators 3 , In other words, the actuators correspond 122 and 124 the actuators 3 except that the first actuator 122 is executed as a round button, which is executed by the second operating element designed as a rotary ring 124 is surrounded. Further, the circuit diagram 224b to the round actuators 122 and 124 adapted and adjacent to a periphery of the second actuating element 124 arranged. In the presentation of 11 is the symbol P for the parking function on the first actuating element 122 by means of a luminous element 126 illuminated. Thus it can be seen that the parking function P is activated.

12 shows a schematic representation of the actuators 122 and 124 out 11 , Here, the representation corresponds to 12 the presentation 11 except that the parking function P is disabled and the gear level N is selected. Here is the icon for the gear N by means of a luminous element 126 illuminated. Further, one is on the icon for the gear N in the circuit diagram 224b pointing arrow symbol of a plurality of arrow symbols on the second actuating element 124 by means of a luminous element 126 illuminated.

With reference to the 11 and 12 is briefly below an actuation of the actuators 122 and 124 summarized again explained. The first actuator 122 is operated by pressing to the parking function P to use, ie as needed activate and deactivate. The second actuator 124 is operated by turning to the exemplary driving steps R . N . D . 2 and 1 to choose. The first actuator 122 is within the second actuator 124 arranged and executed as a button. The driving steps R . N . D . 2 and 1 are by rotation of the running as a wheel or rotary ring second actuator 124 selectable or adjustable, wherein by means of an arrow symbol, which is illuminated or can be designed as an embossed mark on the rotatable knob or second actuator 124 can be displayed, which gear is selected.

13 shows a flowchart of a method 1300 for selecting according to an embodiment. The procedure 1300 is executable to select a function of a transmission for a vehicle. Here is the procedure 1300 for selecting in conjunction with a device which corresponds or resembles the device of any of the above-described figures.

In one step 1310 the reading is in the process 1300 a first operating state or a second operating state of an input interface to the first actuating element and the second actuating element is read. The first actuation state represents a first actuation signal for activating the parking function. The second actuation state represents a first actuation signal for deactivating the parking function and a second actuation signal for requesting a drive step function.

The following will be in one step 1320 generating generates in response to one of the operating states of at least one of the switching signals. In this case, the first switching signal is generated in response to the first operating state. In response to the second operating state, the first switching signal and the second switching signal are generated.

Again, following will be in one step 1330 providing the first switching signal and / or the second switching signal to an output interface to the transmission. The first switching signal and / or the second switching signal are suitable for effecting a selection of the function of the transmission.

With reference to the above-described figures, embodiments and characteristic features thereof will be briefly summarized and in other words briefly explained in the following.

The device 120 has according to one embodiment, a monostable selector lever as the second actuating element 124 for selecting a driving level by the driver or operator. The second actuator 124 is configured to the selected gear as a second actuation signal 125 or message or information to be issued electronically. Furthermore, the device 120 the first actuating element 122 as a separate actuating mechanism for the parking function, for example in the form of a button. Thus, the second actuating element 124 as another, separately executed operating mechanism for the driving steps, for example R . N . D . M . S . 2 . 1 and / or the like, realized and executed for example as a turntable or slider.

An actuation of the first actuating element 122 is required both to exit or deactivate the parking function as well as to achieve or activate the parking function. Each actuation of the second actuating element 124 to select a gear is ignored, as long as the parking function not by pressing a button or pressing the first actuator 122 was left or deactivated, or in other words as long as the parking function is activated.

According to one embodiment, the device 120 also the lighting device 136 and that at least one luminous element 126 for lighting, in particular only currently available or permissible choices are highlighted. The light guidance is in its brightness of a possibly existing backlight. The illumination can be made distinguishable, for example, three levels of color and / or brightness for light guidance: the active or selected function of the transmission 110 at the next actuation of the second actuator 124 selectable driving levels and a backlight for night driving and / or orientation.

The embodiments described and shown in the figures are chosen only by way of example. Different embodiments may be combined together or in relation to individual features. Also, an embodiment can be supplemented by features of another embodiment.

Furthermore, method steps according to the invention can be repeated as well as carried out in a sequence other than that described.

If an exemplary embodiment comprises a "and / or" link between a first feature and a second feature, this can be read so that the embodiment according to one embodiment, both the first feature and the second feature and according to another embodiment, either only the first Feature or only the second feature.

LIST OF REFERENCE NUMBERS

100

vehicle

110

transmission

120

device

122

first actuating element

123

first actuation signal

124

second actuator

125

second actuation signal

126

light element

130

control unit

132

first actuating device

133

first switching signal

134

second actuating device

135

second switching signal

136

lighting device

137

illumination signal

138

Input interface

139

Output interface

224a

cover

224b

switching scheme

P

Park function

R, N, D

Speed steps functions

1, 2

Speed steps functions

324c

unlocking

405

other speed functions

1300

Method for selecting

1310

Step of reading in

1320

Step of creating

1330

Step of providing

Claims (12)

Means (120) for selecting a function (P, D, N, R, 1, 2) of a transmission (110) for a vehicle (100), said apparatus (120) signal capable of transmission to the transmission (110) is connected, characterized characterized in that the device (120) comprises: a first actuator (132) for a parking function (P) of the transmission (110), the first actuator (132) being adapted to actuate in response to actuation of a first actuator (122 ) to provide a first switching signal (133), the first switching signal (133) representing a requested state change between an activated and a deactivated state of the parking function (P); and a second actuator (134) for speed functions (D, N, R, 1, 2) of the transmission (110), wherein the second actuator (134) is adapted to operate in response to actuation of a second actuator (124) deactivated state of the parking function (P) to provide a second switching signal (135), wherein the second switching signal (135) represents a requested speed step function (D, N, R, 1, 2). Device (120) according to Claim 1 characterized in that the first actuator (132) is adapted to provide the first switch signal (133) for activating the parking function (P) independently of the second switch signal (135) and / or with higher priority than the second switch signal (135) , Device (120) according to one of the preceding claims, characterized in that the second actuating device (134) is designed to block the second switching signal (135) in an activated state of the parking function (P), and / or wherein the second actuating element (14) 134) is disabled or deactivated in the activated state of the parking function (P). Device (120) according to one of the preceding claims, characterized in that the first actuating element (122) and the second actuating element (124) structurally and / or spatially separated from each other. Device (120) according to one of the preceding claims, characterized in that the first actuating element (122) is designed as a key, wherein the first actuating element (122) is mechanically decoupled from an actuation of the second actuating element (124). Device (120) according to one of the preceding claims, characterized in that the second actuating element (124) is designed as a monostable actuating element, in particular wherein the second actuating element (124) is designed as a slide, lever or rotary switch. Device (120) according to one of the preceding claims, characterized by illuminating means (136) for effecting illumination of at least one luminous element (126), wherein the at least one luminous element (126) is associated with the first actuating element (122) and / or the second actuating element (124) ) assigned. Device (120) according to Claim 7 characterized in that the illumination means (136) is adapted to effect illumination by means of the at least one lighting element (126) having a selected function (P, D, N, R, 1, 2) of the transmission (110), starting from the selected function (P, D, N, R, 1, 2) represents possible selectable functions (P, D, N, R, 1, 2) and / or a backlight for the actuating elements (122, 124). Device (120) according to one of the preceding claims, characterized in that the second actuating element (124) has an unlocking unit (324c), wherein the unlocking unit (324c) is designed to actuate the second actuating element (324c) in response to unlocking by a user. 124). A method (1300) for selecting a function (P, D, N, R, 1, 2) of a transmission (110) for a vehicle (100), the method (1300) in conjunction with a device (120) according to any one of preceding claims, characterized in that the method (1300) comprises the steps of: reading (1310) a first actuation state or a second actuation state from an input interface (138) to the first actuation element (122) and the second actuation element (124), wherein the first actuation state represents a first actuation signal (123) for activating the parking function (P), wherein the second actuation state comprises a first actuation signal (123) for deactivating the parking function (P) and a second actuation signal (125) for requesting a drive step function (D, N, R, 1, 2); Generating (1320) at least one of the switching signals (133, 135) in response to one of the operating conditions, wherein the first switching signal (133) is generated in response to the first operating state, the first switching signal (133) and the second switching signal (135) responsive to the second operating state are generated; and providing (1330) the first switching signal (133) and / or the second switching signal (135) to an output interface (139) to the transmission (110) to perform the function (P, D, N, R, 1, 2) of Select gearbox (110). A computer program configured to execute the method (1300) in accordance with Claim 10 execute and / or control. Machine-readable storage medium on which the computer program is based Claim 11 is stored.

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