DE102019101782A1 - Systems and methods for controlling a driving mode - Google Patents

Abstract

The present disclosure relates to a method for controlling a driving mode of a vehicle. The driving mode can be selected from a large number of driving modes and each driving mode of the large number of driving modes characterizes one or more configuration parameters of the vehicle in regular driving mode. The method comprises acquiring a current value of a first operating parameter; Determine whether the current value of the first operating parameter is less than or equal to a first predetermined threshold value. If the current value of the first operating parameter is less than or equal to a first predetermined threshold value, a first subset of the plurality of driving modes is released for selection by a user of the vehicle; and restricting a second subset of the plurality of driving modes so that driving modes of the second subset cannot be selected by the user of the vehicle. The present disclosure further relates to a system that is configured to carry out the method according to the invention and a vehicle that includes the system.

Description

The disclosure relates to systems and methods for controlling a driving mode. The disclosure relates in particular to systems and methods for controlling a driving mode in vehicles, in particular in partially or completely electrically operated vehicles.

State of the art

In the prior art, vehicles are known that provide a selection of different driving modes that can be selected accordingly by a vehicle user. Typical driving modes include, for example, sporty settings or comfort-oriented settings. Driving modes are also offered that enable or support a particularly economical driving style.

Different driving modes usually contain specific maps for operating components of the vehicle. For example, the characteristic of an accelerator pedal can be set via a corresponding characteristic diagram, a setting that is optimized for comfort or consumption can have a linear or sublinear characteristic, while a sporty setting can have a superlinear characteristic. As a result, the engine control reacts in the first case with a linear or restrained power output, in the second case even a small actuation of the accelerator pedal results in a disproportionate power output.

Other operating components include steering wheel, chassis, transmission, shock absorber and the like. In some cases, an analysis of the driving style of a user can also be carried out, which allows an automatic adaptive setting of the driving modes. Here, the vehicle itself can select a suitable mode that comes closest to the user request based on the detected driving style. The techniques described above are also used in at least partially or completely electrically powered vehicles (eg “electric vehicle” or EV, “battery electric vehicle” or BEV, “hybrid electric vehicle” or HEV and “plug-in hybrid electric vehicle” or PHEV) to find, whose drive systems offer a particularly wide range of design options.

The publication US 2016/221570 describes a control system or method for a hybrid electric vehicle that can independently select a suitable driving mode based on certain parameters. The user can make a manual selection at any time and thus leave a driving mode specified by the system.

The manual setting of certain driving modes can have a disadvantageous effect, in particular in the case of at least partially or fully electrically operated vehicles, for example if the user does not take into account, or does not take sufficient account of, a state of charge (SoC) or existing power restrictions. As a result, situations can arise in which the vehicle surprisingly cannot meet a performance requirement for the user or the range must be unexpectedly limited.

This can occur, for example, if the user chooses a driving mode that is unsuitable for the current SoC and / or performance restrictions (e.g. "Sport"), but due to a specific driving situation in which no increased performance requirement is recorded over a period of time, no feedback about any receives necessary restrictions. In the event that the user signals an increased power requirement in accordance with the selected driving mode, this cannot be met due to the current SoC and / or the range of the vehicle has decreased disproportionately.

As a result, energy saving potential is wasted and the user gets a negative impression of the performance and / or range of the vehicle.

There is therefore a need for methods and systems for controlling a driving mode which determine a suitable driving mode based on a SoC and / or further parameters and / or prevent a selection of unsuitable driving modes by a user.

There is also a need for methods and systems for controlling a driving mode which, in particular, detect a performance degradation of one or more components of a vehicle and limit an output and / or a drive torque based on the detection.

In particular, there is still a need for methods and systems for controlling a driving mode, which regularly or continuously determine a performance degradation and regularly adjust the suitable driving mode / modes.

Disclosure of the invention

It is an object of the present disclosure to provide systems and for controlling a driving mode that avoid one or more of the disadvantages described and / or enable one or more of the advantages described.

This object is achieved by the subject matter of the independent claims. Advantageous refinements are specified in the subclaims.

In a first aspect according to embodiments of the present disclosure, a method for controlling a driving mode is specified. The driving mode can be selected from a plurality of driving modes and each driving mode of the plurality of driving modes characterizes one or more configuration parameters of the vehicle 80 in regular driving. The method comprises acquiring a current value of a first operating parameter; Determining whether the current value of the first operating parameter is less than or equal to a first predetermined threshold value; and if the current value of the first operating parameter is less than or equal to a first predetermined threshold value: releasing a first subset of the plurality of driving modes for selection by a user of the vehicle; and restricting a second subset of the plurality of driving modes so that driving modes of the second subset cannot be selected by the user of the vehicle. The regular driving mode preferably indicates a driving mode of the vehicle in a predetermined driving direction, in particular while maintaining a selected driving level (for example “D” or “R”) and / or while maintaining the predetermined driving direction.

In a second aspect according to aspect 1, the method further comprises if the current value of the first operating parameter is less than or equal to the first predetermined threshold value: determining whether a currently selected driving mode is contained in the second subset; and if the currently selected driving mode is contained in the second subset, selecting the current driving mode from the first subset.

In a third aspect according to aspect 2, the first operating parameter includes a state of charge (SoC) of an energy store of the vehicle.

In a fourth aspect according to one of aspects 1 to 3, the method further comprises determining an energy forecast for a distance still to be covered from the vehicle to a destination, the energy forecast including an energy value which is required for the distance still to be covered. The first predetermined threshold value is determined based on the consumption forecast.

In a fifth aspect according to one of the aspects 3 or 4, the first predetermined threshold value is further determined based on the state of charge. The state of charge is greater than or equal to the energy value.

In a sixth aspect according to one of the aspects 4 or 5, the energy forecast is further determined based on a remaining range that the vehicle should still have at the destination. The energy value also includes a residual energy value that is sufficiently dimensioned to cover an additional distance the length of the remaining range.

In a seventh aspect according to one of aspects 1 to 6, the method further comprises determining whether the current value of the first operating parameter is less than or equal to a second predetermined threshold value that is less than the first predetermined threshold value; and, if the current value of the first operating parameter is less than or equal to a second predetermined threshold value: releasing a third subset of the plurality of driving modes for selection by a user of the vehicle, the third subset representing a subset of the first subset; and restricting a fourth subset of the plurality of driving modes so that driving modes of the fourth subset cannot be selected by the user of the vehicle. The method preferably further comprises if the current value of the first operating parameter is less than or equal to the second predetermined threshold value: determining whether a currently selected driving mode is contained in the fourth subset; and, if the currently selected driving mode is contained in the fourth subset, selecting the current driving mode from the third subset.

In an eighth aspect according to one of the aspects 1 to 7, a first intersection of the first and second subsets is empty, and, if appropriate, a second intersection of the third and fourth subsets is empty.

In a ninth aspect, a system for controlling a driving mode of a vehicle is specified. The system comprises a control unit configured to carry out the method according to embodiments of the present disclosure, preferably according to one of the aspects 1 to 8.

A vehicle is specified in a tenth aspect. The vehicle includes a system in accordance with embodiments of the present disclosure, preferably in accordance with aspect 9.

The methods and systems disclosed herein offer one or more of the advantages listed below.

Methods and systems for reproducing media data according to the present disclosure allow a suitable driving mode based on a SoC and / or further parameters to determine and / or to prevent a selection of unsuitable driving modes by a user.

Methods and systems for reproducing media data according to the present disclosure in particular allow a performance degradation of one or more components of a vehicle to be detected and a power and / or a drive torque to be limited based on the detection.

Methods and systems for reproducing media data in accordance with the present disclosure furthermore allow a performance degradation to be determined regularly or continuously and a regular adaptation of the suitable driving mode (s) to be carried out.

Figure list

• 1 zeigt eine schematische Darstellung eines Systems zur Steuerung eines Fahrmodus gemäß Ausführungsformen der vorliegenden Offenbarung; und
• 2 zeigt ein Flussdiagramm eines Verfahrens zur Wiedergabe von Mediendaten gemäß Ausführungsformen der vorliegenden Offenbarung.

Exemplary embodiments of the disclosure are shown in the figures and are described in more detail below. Unless otherwise noted, the same reference numerals are used below for the same and equivalent elements.

• 1 FIG. 1 shows a schematic representation of a system for controlling a driving mode according to embodiments of the present disclosure; and
• 2nd FIG. 4 shows a flow diagram of a method for playing media data in accordance with embodiments of the present disclosure.

Embodiments of the disclosure

Unless otherwise noted, the same reference numbers are used below for the same and equivalent elements.

1 shows a schematic representation of a system 100 for controlling a driving mode according to embodiments of the present disclosure for use in a vehicle 80 . The system 100 can essentially be on a control unit 120 of the vehicle 80 be carried out. The vehicle 80 can next to the control unit 120 further a communication unit 130 include data communication with the vehicle 80 external components (e.g. mobile devices 125 and / or one or more backend components 150 , e.g. server or services) is configured. The vehicle 80 can further be a user interface 110 include, for example, as a touchscreen in the vehicle 80 can be implemented (eg as a central information display CID on or in the dashboard area of the vehicle 80 ).

The term "vehicle" with the reference symbol " 80 “Includes vehicles of all kinds, for example cars, trucks, buses, campers, motorcycles, etc., which serve to transport people, goods, etc. In particular, the term includes motor vehicles for the transportation of people. The vehicle 80 can have one or more different drive types, for example based on gasoline engines, diesel engines, hydrogen technology, fuel cells, electric motors, or combinations thereof. vehicles 80 with an electric drive (in particular hybrid or electric vehicles) are driven by an electric motor and comprise electrical energy stores (for example batteries, high-voltage batteries) which can be connected to a charging station and charged via a charging device of the vehicle. Various charging technologies can be used to charge the electrical storage of such hybrid or electric vehicles. On the state of charge of the electrical energy storage of a vehicle 80 is usually referred to under the term "SoC" (English "state of charge").

The system 100 can be one or more to the vehicle 80 external backend components 150 or have an appropriate infrastructure that provides one or more resources (eg servers, services). The backend component 150 can be temporary or permanent with the control unit 120 of the vehicle 80 and / or with the mobile device 125 in data communication 140 stand. Resource-intensive processing steps (for example processing of natural language and / or of image or video data, speech recognition, processing of large amounts of external data) can preferably be sent to the external back-end component 150 outsourced by the control unit 120 in the vehicle 80 and / or by the mobile device 125 could be done only with difficulty or not at all. In this case, any requirements regarding computing power, storage capacity, available bandwidth, connection to external data sources and the like can also be taken into account. The backend components 150 can in particular provide services provided by the control unit 120 and / or from the mobile terminal 125 be used. One on the control unit 120 or software component executed on the mobile terminal can establish a data connection 140 to one or more services 150 produce.

The application examples described below relate, by way of example, to at least partially electrically powered vehicles 80 . However, it is expressly intended to apply the concepts described below to vehicles of any drive type, ie also to those without an electric drive. Analogous to a vehicle 80 with electric drive and a SoC of the associated electrical energy store, the methods and systems described can also be used, for example, on a vehicle operated with fuel (for example gasoline, diesel, methane, kerosene, hydrogen, fuel) 80 be applied. An existing tank content (eg full, half full, etc.) or other amounts of fuel (s) then essentially correspond to the SoC in the case of an electrically operated vehicle 80 .

The application examples described below can also expressly refer to applications that are not primarily focused on energy consumption (e.g. SoC, tank content), but on other target parameters, e.g. on emission or exhaust gas issues or torque limits due to gearbox protection (e.g. at cold temperatures) or for Protection of one or more components of the vehicle (e.g. engine, transmission, brakes). Analogously to the use cases described below, it is conceivable, for example, to use the methods and systems in order at least temporarily (for example when driving through an environmental zone or a restricted area) to emit pollutants from the vehicle 80 (or other emission-related parameters). This could trigger a change of driving mode (e.g. from "Sport" or "Comfort" to "ECO") and a manual selection of certain driving modes (e.g. "Sport" or "before or when entering a special area (e.g. downtown, environmental zone)). Comfort ”) can be prevented within the special area. After or when leaving the area, appropriate driving modes could be released again and / or a previously selected mode could be selected again automatically (eg from “ECO” back to “Sport” or “Comfort”).

In a first application example, a user drives 60 (not in 1 shown) with the vehicle 80 a route which is not predetermined (for example by a navigation system). The SoC of the vehicle's energy storage decreases during the journey 80 . The user 60 selected a sporty driving mode (eg "Sport") in the first application example, ie in particular no driving mode (eg "Comfort" or "ECO") geared towards economy or range optimization. The sporty driving mode enables appropriate driving performance (e.g. acceleration, top speed), but brings a correspondingly shorter range and / or, possibly with continuously higher loads, a performance restriction. As a result, there may be a limitation in vehicle performance at some point 80 result, for example due to a very low SoC or a condition (eg overheating) of the power electronics of the vehicle 80 .

The term “driving mode” denotes one or more configuration parameters of the vehicle 80 in regular driving, preferably if or while the vehicle is operated in driving position "D" (ie in particular the term does not mean a simple change of driving speed, for example from "R" to "D" or the like). Each “driving mode” of a multitude of driving modes identifies one or more configuration parameters of the vehicle 80 in regular driving mode, wherein at least one of the one or more configuration parameters differs from a first driving mode to a second driving mode, preferably for any pair of first and second driving modes of the plurality of driving modes.

For example, one or more drive configuration parameters can differ between two different driving modes, for example an accelerator pedal interpretation, a maximum available or made available torque, a torque build-up gradient, and the like. Further configuration parameters can relate to corresponding parameters relating to chassis settings such as steering, suspension and / or damping. Further configuration parameters can relate to displays.

The one or more configuration parameters of the vehicle 80 include, for example, a first configuration parameter that detects an accelerator pedal position and controls the drive of the vehicle based thereon 80 indicates. For example, various characteristic curves (eg linear, progressive, degressive) are conceivable for converting an accelerator pedal position into propulsion (eg acceleration) or deceleration (eg drag torque). The first configuration parameter can be used, for example, to set a "throttle response" (use of the term also for electric drives in the known sense of the term) to "sporty" (e.g. spontaneous, agile and / or fast throttle response or to "economical" (e.g. damped, less agile and / or maximum throttle response) The one or more configuration parameters of the vehicle are set based on a selected driving mode and are configured to have a driving operation character that is perceived or objectively ascertainable by the user (eg "sporty", "comfortable", "economical") of the vehicle 80 to change.

In particular, a situation can arise in which the user 60 if necessary, within a limited range, not or not immediately noticed a possible limitation of performance or range. This can lead to a possibly higher or full performance requirement of the user 60 (e.g. Overtaking, uphill) is suddenly limited, in particular that there is a sudden free travel with which the user 60 didn't count.

This can lead to critical driving situations, inadvertently stopping the vehicle 80 cause on the open road or bring other adverse effects. Such and other situations or effects can cause user dissatisfaction 60 and / or a general distrust of the user 60 against technology.

According to the present disclosure, it is provided that in the first application example, the SoC is monitored while driving and the selection of an unsuitable driving mode, which may or probably contribute to the disadvantageous effects described above, is prevented.

In the first application example, the system 100 Enable one or more driving modes (eg "Comfort", "ECO") based on a current SoC, while the selection of one or more (other) driving modes (eg "Sport") is restricted (ie prevented). In particular, when the first threshold value of the SoC (or the tank content, fuel reserves, etc.) is undershot, such a release or restriction is carried out. If the value falls below a second threshold value, which is lower than the first threshold value, a further restriction is carried out (ie fewer driving modes are released while additional driving modes are restricted).

In the first application example, the system prevents 100 accordingly, according to the present disclosure, a selection of the “sport” driving mode as soon as the SoC reaches a first threshold value or falls below this. The user 60 As soon as the SoC reaches a first threshold value or falls below this, there is no longer any possibility to select the "Sport" driving mode, since corresponding performance requirements or driving performance would lead to a rapid exhaustion of the SoC. If the "Sport" driving mode has already been selected at this point, it will be downgraded to the next economical "Comfort" driving mode. The driving modes "Sport" and "Comfort" preferably differ only in drive-related parameters (e.g. accelerator pedal curve, max. Torque, torque build-up gradient), while other parameters (e.g. in relation to chassis settings) do not differ. In this way, drive-related restrictions can be made (eg a switch from "Sport" to "Comfort") without a sporty setting or configuration of the chassis, steering and / or displays in the vehicle 80 would also have to be abandoned. It is expressly intended to adapt the different driving modes individually to the respective situation without imposing unnecessary restrictions on the user. In some embodiments, global restrictions can nevertheless optionally be provided, so that there is an overall change in the tuning of the vehicle. With a more comfortable setting of the steering and / or suspension / damping, for example, this can also contribute to an energy-saving driving style, and thus to an overarching goal.

A further restriction is preferably made when a second threshold value of the SoC is reached or fallen below, the second threshold value being lower than the first threshold value. The user 60 As soon as the SoC reaches or falls below the second threshold, it is no longer possible to select the "Comfort" driving mode, since corresponding performance requirements or driving performance would also quickly lead to exhaustion of the SoC. If the "Comfort" driving mode is already selected at this point, the vehicle is downgraded to the next economical "ECO" driving mode. In the case of other existing gradations (e.g. modes 1, 2, 3, 4, ...), a corresponding further restriction can be made. The modes "Sport," Comfort "," ECO "described above are only to be understood as examples and designate different driving modes, which are subject to different requirements for the SoC and the power electronics, whereby the first-mentioned driving modes place higher demands (eg" Sport "places high demands) SoC and power electronics requirements).

In a second application example, a user drives 60 with the vehicle 80 a route predetermined by a navigation system. The SoC of the vehicle's energy storage decreases during the journey 80 , at the same time an energy demand forecast is available, which can be determined based on the route profile and other parameters of the route. For example, based on the route traveled (e.g. partial routes on motorways, country roads, city traffic) and / or based on the route profile (e.g. altitude profile, uphill or downhill sections) and possibly other parameters (e.g. loading, trailer operation, weather conditions, temperature, power consumption of the Vehicle 80 ) an expected energy requirement can be determined. Based on this, it can also be determined whether the remaining range (based on the SoC) is sufficient for driving the route or reaching a charging station on the way.

The user 60 also has a sporty match in the second application example Driving mode (eg "Sport") selected, ie in particular no driving mode geared towards economy or range optimization (eg "Comfort" or "ECO").

The system 100 can now determine whether the vehicle is based on the route data and the SoC 80 can reach the route destination or an intermediate destination (eg charging) in the selected “Sport” driving mode. If necessary, a safety buffer can be taken into account that covers unpredictable effects (e.g. traffic jam, returnable by diversion, change in weather conditions).

In the second application example, the system prevents 100 accordingly, according to the present disclosure, a selection of the “sport” driving mode in the event that the SoC reaches or falls below a first threshold value, the first threshold value allowing the route destination or intermediate destination to be reached. The user 60 in this case it is no longer possible to select the "Sport" driving mode if corresponding performance requirements or driving performance would lead to the vehicle 80 the route destination or stopover would no longer be reached based on the current SoC. If the "Sport" driving mode has already been selected at this point, it will be downgraded to the next economical "Comfort" driving mode.

A further restriction preferably occurs when a second threshold value of the SoC is reached or fallen below if there is a change in the remaining range, the energy forecast or other parameters (for example due to traffic jam, complete blockage and therefore necessary detour). The user 60 then once again, as soon as the SoC reaches or falls below the second threshold value, it is no longer possible to select the “Comfort” driving mode, since corresponding performance requirements or driving performance would likewise lead to rapid exhaustion of the SoC. If the "Comfort" driving mode is already selected at this point, the vehicle is downgraded to the next economical "ECO" driving mode.

The system preferably determines 100 continuously or at regular intervals, whether the current route or stopover can be reached based on the current SoC (possibly plus buffer) and, based on these and possibly other parameters, releases one or more driving modes or limits one or more driving modes .

2nd shows a flow diagram of a method 200 for controlling a driving mode according to embodiments of the present disclosure. The driving mode can basically be selected from a large number of driving modes. The procedure 200 starts at step 201 .

In step 202 the current value of a first operating parameter is recorded, the first operating parameter preferably a state of charge (SoC) of an energy store in the vehicle 80 includes. The system can thus enable or restrict the selection of the possible driving modes based on the SoC (as described above).

In step 204 it is determined whether the current value of the first operating parameter is less than or equal to a first predetermined threshold value. The first predetermined threshold value is determined dynamically, for example based on a route still to be traveled and / or based on empirical values or preset (minimum) values. The first predetermined threshold value can, for example, indicate a minimum state of charge, possibly with a buffer for a desired remaining range, which is necessary to reach a destination. For this purpose, an energy consumption forecast can be carried out which, for example, provides an expected energy value based on the route.

If the current value of the first operating parameter is less than or equal to a first predetermined threshold value, then in step 206 a first subset of the plurality of driving modes for selection by a user 60 of the vehicle 80 Approved. That means the user 60 can now only select the driving modes contained in the first subset (eg "Comfort" or "ECO"). Next step 208 restricts a second subset of the plurality of driving modes, so that driving modes of the second subset (eg “sport”) are no longer (by the user) 60 of the vehicle 80 can be selected. The intersection of the first and second subsets is preferably empty, ie there are no driving modes that are contained in both subsets.

The procedure 200 is preferably repeated regularly or continuously, after step 208 (or step 212 step as described below) 202 follows. Alternatively, the process at step 224 completed. The method preferably starts after the vehicle has been started 80 or a partial or full recharge at step 201 , wherein the first subset contains all driving modes of the plurality of driving modes (ie all driving modes can be selected) and the second subset is empty (ie no driving mode is locked or restricted).

The method preferably comprises 200 further (optional) steps 210 and 212 . If the current value of the first operating parameter is smaller or is equal to the first predetermined threshold, in step 210 determines whether a currently selected driving mode is contained in the second subset. If the currently selected driving mode is contained in the second subset, in step 212 the current driving mode selected from the first subset. This means that the system 100 a formerly from the user 60 can deactivate the selected driving mode if this is classified as unsuitable based on the first threshold value (see above). The system can accordingly 100 select a suitable driving mode from the second subset. After step 212 can the procedure 200 be finished (step 224 ) or regularly or continuously (from step 202 ) be repeated.

There is preferably a ranking between the driving modes of the plurality of driving modes (i.e. in all possible subsets). In the first or second application example (see above), for example, the "Sport" driving mode is first deactivated and "Comfort" activated. Later, with further degradation of the SoC, "Comfort" can be deactivated and "ECO" activated (i.e. ranking "Sport"> "Comfort"> "ECO"). Other rankings are conceivable, as well as a larger (or smaller number) of possible driving modes.

Although the invention has been illustrated and explained in more detail by means of preferred exemplary embodiments, the invention is not restricted by the disclosed examples and other variations can be derived therefrom by a person skilled in the art without departing from the scope of protection of the invention. It is therefore clear that there are a variety of possible variations. It is also clear that exemplary embodiments really only represent examples that are not to be interpreted in any way as a limitation of the scope, the possible applications or the configuration of the invention. Rather, the preceding description and the description of the figures enable the person skilled in the art to specifically implement the exemplary embodiments, the person skilled in the art having knowledge of the disclosed inventive concept being able to make numerous changes, for example with regard to the function or the arrangement of individual elements mentioned in an exemplary embodiment, without the To leave the scope of protection, which is defined by the claims and their legal equivalents, such as further explanations in the description.

QUOTES INCLUDE IN THE DESCRIPTION

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Patent literature cited

• US 2016221570 [0005]

Claims (10)

Method (200) for controlling a driving mode of a vehicle (80), wherein the driving mode can be selected from a plurality of driving modes and each driving mode of the plurality of driving modes characterizes one or more configuration parameters of the vehicle (80) in regular driving, the method comprising: Detecting (202) a current value of a first operating parameter; Determining (204) whether the current value of the first operating parameter is less than or equal to a first predetermined threshold value; and if the current value of the first operating parameter is less than or equal to a first predetermined threshold value: - releasing (206) a first subset of the plurality of driving modes for selection by a user (60) of the vehicle (80); and - Limiting (208) a second subset of the plurality of driving modes so that driving modes of the second subset cannot be selected by the user (60) of the vehicle (80). Method (200) according to the previous one Claim 1 , further comprising if the current value of the first operating parameter is less than or equal to the first predetermined threshold value: - determining (210) whether a currently selected driving mode is included in the second subset; and - if the currently selected driving mode is contained in the second subset, selecting (212) the current driving mode from the first subset. Method (200) according to the previous one Claim 2 wherein the first operating parameter includes a state of charge (SoC) of an energy store of the vehicle (80). Method (200) according to one of the preceding Claims 1 to 3rd , further comprising determining an energy forecast for a distance still to be traveled from the vehicle (80) to a destination, the energy forecast including an energy value that is required for the distance still to be traveled, the first predetermined threshold value being determined based on the consumption forecast. Method (200) according to the previous ones Claims 3 and 4th , wherein the first predetermined threshold value is further determined based on the state of charge, the state of charge being greater than or equal to the energy value. Method (200) according to one of the preceding Claims 4 or 5 , wherein the energy forecast is further based on a remaining range that the vehicle (80) should still have at the destination, the energy value additionally including a residual energy value that is sufficiently dimensioned to cover an additional distance of the length of the remaining range. Method (200) according to one of the preceding Claims 1 to 6 , further comprising determining (210) whether the current value of the first operating parameter is less than or equal to a second predetermined threshold value that is less than the first predetermined threshold value; and if the current value of the first operating parameter is less than or equal to a second predetermined threshold value: - enabling (214) a third subset of the plurality of driving modes for selection by a user (60) of the vehicle (80), the third subset being a subset of the represents first subset; and - restricting (216) a fourth subset of the plurality of driving modes so that driving modes of the fourth subset cannot be selected by the user (60) of the vehicle (80); preferably further comprising the method (218) if the current value of the first operating parameter is less than or equal to the second predetermined threshold value: - determining (220) whether a currently selected driving mode is included in the fourth subset; and - if the currently selected driving mode is contained in the fourth subset, selecting (222) the current driving mode from the third subset. Method (200) according to one of the preceding Claims 1 to 7 , wherein a first intersection of the first and second subsets is empty, and, optionally, a second intersection of the third and fourth subsets is empty. System (100) for controlling a driving mode of a vehicle (80), the system comprising a control unit (120) which is configured to execute the method (200) according to one of the preceding Claims 1 to 8th . Vehicle (80) comprising a system (100) according to the preceding Claim 9 .

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