DE102019005062A1 - Method for driving a motor vehicle - Google Patents

Abstract

The invention relates to a method for driving a motor vehicle (10), particularly preferably a utility vehicle, which is preferably driven electrically or with hydrogen. The method includes determining at least one route guidance suggestion from a starting point to a destination based on a time interval regulation, a current range and energy supply devices between the starting point and the destination point. The method includes outputting at least one route guidance suggestion. The method can be advantageous with regard to utility vehicle-specific needs.

Description

The invention relates to a method for driving a motor vehicle, preferably driven electrically or with hydrogen, particularly preferably a commercial vehicle. The invention also relates to a motor vehicle designed to carry out the method, preferably a utility vehicle.

Vehicles such as passenger cars and commercial vehicles with internal combustion engines can be refueled in a simple manner due to the good availability of petrol stations on long journeys, without relevant waiting times and without prior planning. In comparison, alternatively powered vehicles, in particular battery-powered vehicles or hydrogen vehicles, have a considerable disadvantage. The availability of charging points is lower, especially on motorways. In the case of battery electric vehicles, the charging process also takes significantly longer.

The DE 10 2010 039 075 A1 discloses an output system for information about an amount of electrical energy of a motor vehicle. According to the system, charging stations can be reserved temporarily or formally.

The previously known solutions for route planning are based predominantly on the needs of the car driver, who generally does not have to take anything into account apart from the planning of routes and possibly charging stops.

The invention is based on the object of creating an alternative and / or improved technology for driving a motor vehicle which preferably integrates utility vehicle-specific requirements.

The object is achieved by the features of independent claim 1. Advantageous developments are specified in the dependent claims and the description.

The invention provides a method (e.g. data processing method) for driving a motor vehicle, preferably (e.g. partially or fully) electrically or (e.g. partially or fully) powered by hydrogen, particularly preferably a commercial vehicle (e.g. Trucks or buses), in particular for route planning and / or for operating the motor vehicle. The method includes specifying a starting point and a destination point of a route. The method includes specifying a time interval regulation for a driver break for a driver of the motor vehicle. The method includes determining a current range of the motor vehicle. The method includes determining (e.g. stationary) energy supply devices, preferably electrical charging locations for charging the motor vehicle or (e.g. hydrogen) filling stations for refueling the motor vehicle, between the starting point and the destination point. The method includes determining at least one route guidance proposal from the starting point to the destination point based on the time interval regulation, the current range and the energy supply devices. The method includes outputting the at least one route guidance proposal (for example by means of a user interface of the motor vehicle).

The method can help to reduce the overall costs or the overall effort of the trip and at the same time relieve the stress of the driver. The method can expediently bring together commercial vehicle and driver-specific issues and thus plan a route proposal with regard to tour, route and break planning (driving and rest times, working hours, parking space availability, charging options) with the aim of minimizing overall costs. For commercial vehicles, the individual driving times and rest times of the drivers can be important boundary conditions, since the breaks can be used in a time-efficient manner, preferably when the vehicle is time-consuming to recharge or refuel. The technology can be used particularly advantageously in a motor vehicle driven electrically or by means of hydrogen. It is also possible to use the technology in a motor vehicle with a diesel, gasoline, natural gas or other internal combustion engine.

In one embodiment, the at least one suggested route is determined in such a way that the driver's break and charging or refueling of the motor vehicle at an energy supply device are coordinated with one another. The driver's break can preferably fall during a period in which charging or refueling of the motor vehicle is planned at an energy supply device, and / or charging or refueling of the motor vehicle at an energy supply device can occur in a period in which the driver's break is planned. At least part of the driver's break can thus be spent in a particularly time-efficient manner when charging or refueling the motor vehicle.

In one embodiment, the temporal break regulation can have a driver break with a predefined length and / or after a predefined travel duration. The temporal break regulation can, for example, have a statutory driving time, rest time, break time and / or working time for the driver of the motor vehicle. The temporal break regulation can have a driver break desired by the driver (for example entered via a user interface of the motor vehicle). The pause regulation can be particularly advantageous from a tachograph of the motor vehicle (z. B. automatically) are provided. The temporal break regulation can have regional driving bans, preferably including Sunday driving bans and / or holiday driving bans, and / or temporary driving bans. Frequently occurring requirements regarding the break planning of professional drivers can thus be taken into account directly when planning the route, in particular automatically or after manual input, and can be appropriately linked with the loading or tank planning.

In a further exemplary embodiment, when energy supply devices are determined, only those energy supply locations are determined whose charging technology is compatible with a charging technology of the motor vehicle. As an alternative or in addition, when determining energy supply devices, only those energy supply locations that are available and / or can be reserved for the planned arrival are determined. As an alternative or in addition, a respective charging power and / or a charging duration are additionally determined when determining energy supply devices. For example, the determination of the at least one route guidance suggestion can additionally be based on the charging power (= refueling output) and / or the charging time (= refueling time). In this way, route planning can be further optimized and specified in relation to the energy supply facilities. The corresponding data can, for example, be received via a communication interface of the motor vehicle and / or provided by a navigation system of the motor vehicle.

In one embodiment, the method further includes specifying a minimum state of charge or a minimum tank level of the motor vehicle, which must not be undershot during route guidance (specifying, for example, using a user interface of the motor vehicle). For example, the determination of the at least one route guidance suggestion and / or the current range can also be based on the minimum charge level or the minimum tank filling. Thus, for example, a desired safety buffer can be taken into account in order to prevent the motor vehicle from staying idle or to guarantee a remaining range for onward travel to a destination without charging or refueling facilities.

In a further embodiment, determining a current range comprises at least one of: determining a current vehicle mass and / or a current payload mass of the motor vehicle; Determining a state of wear of a traction battery or a fuel cell device of the motor vehicle; Determination of topography information (e.g. curves, uphill, downhill gradients, etc.), (e.g. current or forecast) traffic flow information (e.g. traffic density, congestion, congestion forecasts, construction sites, average speed, etc.) and / or (e.g. B. current or forecast) weather information (z. B. temperature, precipitation, visibility, etc.), preferably with respect to possible routes or route sections between the starting point and the destination point; Determining the energy consumption of at least one other, preferably comparable (e.g. same or comparable type, same or comparable mass, same or comparable motorization) motor vehicle on possible routes or route sections between the starting point and the destination point; Determining a current electrical charge level or a current tank filling of the motor vehicle. Depending on the number and type of parameters taken into account, the current range can be calculated (estimated) particularly precisely. Relevant parameters that can cause a significant change in consumption can be, for example, a planned loading or unloading at the starting point or at an intermediate destination, (strong) headwind, slow-moving traffic, many uphill and / or downhill slopes, outside temperature, etc.

According to an independent or combinable aspect of the present disclosure, the method furthermore has a specification of an intermediate destination with a planned change in a payload of the motor vehicle (for example, passenger and / or cargo payload). The determination of the at least one route guidance suggestion and / or the current range can preferably also be based on the intermediate destination and / or the planned change in the payload. This aspect can, for example, also take place without specifying a break regulation and determining the at least one suggested route based on the break regulation.

In one embodiment variant, the method also has a determination of parking spaces, rest stops and / or hotels between the starting point and the destination point. The determination of the at least one route guidance suggestion can preferably also be based on the determined parking spaces, rest stops and / or hotels.

In a further embodiment variant, the method also has a reservation or booking of at least one energy supply device, a parking lot and / or a hotel of a route guidance proposal selected by the driver, e.g. B. by means of a communication interface of the motor vehicle.

In a further embodiment variant, the method also has a determination of autonomously and / or automatically navigable route sections, which are preferably section-wise between the The starting point and the target point lie on. The determination of the at least one route guidance suggestion can preferably also be based on the autonomously and / or automatically navigable route sections. The route guidance can thus also be optimized with regard to automated or autonomous driving of the motor vehicle.

In one embodiment, the method includes adapting a route proposal selected by the driver while driving the motor vehicle along the selected route proposal based on the time interval regulation, a current range, energy supply devices between a current location and the destination point and / or real-time data, preferably with respect to a current one Range of the motor vehicle, traffic flow information, weather information and / or consumption information. This means that the planned route can be updated, checked for plausibility and / or further optimized while driving.

In a further exemplary embodiment, the method also has an adaptation of an operation of the motor vehicle in order to reduce consumption. The operation can preferably be adapted if it is determined that a current range of the motor vehicle is not sufficient to reach the next or next planned energy supply device or the next planned energy supply device is occupied on arrival.

In a further development, the adaptation of the operation includes at least one of: reducing a speed in an automated or autonomous operating mode of the motor vehicle; Reducing a power consumption of at least one secondary consumer of the motor vehicle, preferably a heater, a cooling system, an air conditioning system and / or a user interface of the motor vehicle; and limiting a maximum drive power output of the motor vehicle.

In a further exemplary embodiment, the method further comprises monitoring a driver's condition, preferably a tiredness, of the driver of the motor vehicle while driving the motor vehicle along a selected suggested route (e.g. by monitoring a steering activity, glancing the eyes and / or keeping a lane). For example, the method can additionally include an adaptation of the selected route proposal based on the monitored driver's state, preferably such that charging or refueling of the motor vehicle at an energy supply device and / or the driver's break is brought forward or delayed.

The invention also relates to a motor vehicle, preferably a commercial vehicle (for example a truck or bus), having a control unit which is preferably permanently installed in the motor vehicle or is included in a mobile terminal. The control unit is designed to carry out a method as disclosed herein.

The term “control unit” can preferably refer to electronics (e.g. with microprocessor (s) and data memory) which, depending on the design, can take on control tasks and / or regulation tasks. Even if the term “control” is used here, it can also expediently include “regulation” or “control with feedback”.

• 1 eine schematische Darstellung eines Kraftfahrzeugs gemäß einem Ausführungsbeispiel der vorliegenden Offenbarung; und
• 2 eine schematische Darstellung eines Verfahrens zum Planen einer Route gemäß einem Ausführungsbeispiel der vorliegenden Offenbarung.

The preferred embodiments and features of the invention described above can be combined with one another as desired. Further details and advantages of the invention are described below with reference to the accompanying drawings. Show it:

• 1 a schematic representation of a motor vehicle according to an embodiment of the present disclosure; and
• 2 a schematic illustration of a method for planning a route according to an embodiment of the present disclosure.

The 1 shows, purely schematically, an exemplary motor vehicle 10 , with which the techniques disclosed herein can be used for driving or operating a motor vehicle. The car 10 can in particular be a utility vehicle, preferably a truck or an omnibus.

The car 10 expediently has one or more electric motors as the drive unit. The electric motors can be supplied with electrical energy from a rechargeable traction battery or a fuel cell device. The traction battery can be charged at electric charging stations, for example. The fuel cell device can generate electrical energy with hydrogen from a hydrogen tank of the motor vehicle 10 are supplied. The hydrogen tank can be refueled at hydrogen filling stations, for example. It is also possible that the motor vehicle 10 has, for example, an internal combustion engine that can be driven with hydrogen as the drive unit. It is also possible that the motor vehicle 10 has at least one further drive unit and / or the motor vehicle 10 is a hybrid motor vehicle.

The car 10 instructs a navigation system 12 on. The car 10 can also an autonomous driving system 14th , a positioning device 16 , an environment detection sensor system 18th , a communication interface 20th , a user interface 22nd and / or a tachograph 24 exhibit. The components 12 to 24 can be in communication with each other. The navigation system 12 and / or the autonomous driving system 14th can for example be part of a control unit of the motor vehicle 10 be or be in combination with one of these.

The navigation system 12 serves to determine suggested routes for the motor vehicle 10 . Based on a predefinable starting point and a predefinable destination point, the navigation system can 12 one or more suggested routes for driving the motor vehicle 10 Submit from the starting point to the destination point. The navigation system 12 can be used for route planning and, if necessary, route updates while the vehicle is in motion 10 Data from the components 14-24 receive. The navigation system 12 is adapted in such a way that a wide variety of parameters, in particular relevant for commercial vehicles, can be taken into account for the determination of route suggestions, as herein for example with reference to the 2 is described in more detail.

The autonomous or automated driving system 14th is used for automated or autonomous driving of the motor vehicle 10 . The autonomous driving system 14th can the motor vehicle 10 operate partially or fully autonomously (automated) in different degrees of automation, depending on the version. The autonomous driving system 14th can for driving the motor vehicle 10 e.g. data from the components 12 and 16-24 receive. In addition to fully manual operation of the motor vehicle 10 can the motor vehicle 10 for example in several, e.g. B. five different degrees of automation can be operated automatically, namely assisted driving (level 1), partially automated driving (level 2), highly automated driving (level 3), fully automated driving (level 4) and / or autonomous driving (level 5).

The positioning device 16 is designed to provide a current location of the motor vehicle 10 to investigate. For example, the location determination device 16 a satellite and / or global positioning device, e.g. B. a GPS positioning device, a Galileo positioning device, a GLON-ASS positioning device and / or a Beidou positioning device.

The environment detection sensors 18th is designed to be an environment of the motor vehicle 10 to detect sensor-based, z. B. an environment in front of, next to and / or behind the motor vehicle 10 . The environment detection sensors 18th can, for example, a camera device, a radar device, a lidar device, a laser scanning device and / or close-range sensors, e.g. B. ultrasonic sensors have.

The communication interface 20th is designed to send and / or receive data, preferably wirelessly. For example, the communication interface 20th enable communication with other motor vehicles, with infrastructure facilities, with the Internet and / or with a central control center.

The user interface 22nd is designed to provide information to a driver of the motor vehicle 10 output and inputs from the driver of the motor vehicle 10 to recieve. For example, the user interface 22nd Output information acoustically, visually and / or haptically. Preferably the user interface 22nd a touch-sensitive display device, a loudspeaker and / or one or more input devices, such as B. buttons or switches. The user interface 22nd can be fixed in the motor vehicle 10 be integrated and / or as a mobile one, expediently also outside the motor vehicle 10 usable terminal, e.g. B. a smartphone, a tablet computer or a notebook.

The tachograph or tachograph 24 is designed to record the driving times, rest times and break times driver-specifically (e.g. identification via a driver card and / or reading out the driver card) directly or indirectly. The recorded data can be from the tachograph 24 can be accessed, in particular by the navigation system 12 .

The 2 shows a method for route planning purely by way of example. It is possible that the method is carried out at least partially in a different sequence, additional steps are added and / or alternative steps are carried out, provided that no contradictions arise. To carry out the method, the components 12-24 can be used individually or in any combination.

In one process step S10 boundary conditions for route planning can first be specified. The specification can, for example, by user input using the user interface 22nd take place or automatically z. B. by means of the communication interface 20th be received. For example, a starting point and a destination point can be specified. The starting point can, for example, be the current location or whereabouts of the motor vehicle 10 be useful with the location determination device 16 is determinable. In addition, for example, a start time, an arrival time and / or at least one stopover or intermediate destination can be specified. It is possible to specify optimization goals for route planning, e.g. B. minimum travel time, minimum charge level at the destination, etc. Appropriately, in the process step S10 specifications relevant to route planning, in particular for commercial vehicles, can also be made, as explained below. The individual aspects can be used individually or in any combination with one another as a specification (s) for route planning.

A temporal break regulation for a driver break of a driver of the motor vehicle can be advantageous 10 can be specified. The break regulation has a specification for the length of a driver break and / or for taking a driver break after a certain driving time. The specification can expediently correspond to statutory provisions, e.g. B. legally required or permitted driving times, rest periods, break times, working hours th for the driver of the motor vehicle. In this context, current data relating to the time interval regulation can preferably be obtained from the tachograph 24 of the motor vehicle 10 to be provided. The temporal break regulation can also include regional driving bans, preferably including Sunday driving bans and / or public holiday driving bans, and / or temporary driving bans, in particular for commercial vehicles such as trucks. It is possible that the time interval regulation is one of the driver of the motor vehicle 10 Has desired driver break, which can be entered manually, for example. So can the driver of the motor vehicle 10 for example, pretend that he would like to take a rest break with a predefinable or variable break length after a certain driving time. The pause regulation can for example be done manually by means of the user interface 22nd and / or automatically by means of the communication interface 20th be received.

Appropriately, in process step S10 one or more intermediate destinations can also be specified for the route. Preferably, with regard to the at least one interim destination, it can also be specified how a payload changes at the respective interim destination. The payload can relate to a passenger payload, in particular if it is the motor vehicle 10 is an omnibus, such as a coach. The payload mass can alternatively or additionally relate to a (transport) freight payload mass, in particular if it is a motor vehicle 10 is a transport truck. It is possible that the payload and / or the at least one intermediate destination can be set manually using the user interface 22nd and / or automatically by means of the communication interface 20th Will be received. The payload can be specified, for example, directly in kilograms and / or indirectly, for example in the form of a number of people, a number of piece goods, etc.

In addition, there may be the option in the process step S10 for example, to specify a minimum charge level of the traction battery that is not to be fallen below or a minimum level of the hydrogen tank to be filled. This minimum state of charge or the minimum tank filling must not be undercut with a predefinable or predetermined degree of certainty while driving along the route to be planned.

In the process step S12 a (preliminary) route planning can be carried out in which one or more candidates for route proposals that connect the starting point with the destination point are determined. It is possible to take into account desired intermediate destinations for the candidates for route suggestions. The route planning can also be based on data, for example D10 To fall back on. The data D10 can, for example, from the navigation system 12 provided by yourself or by means of the communication interface 20th be received. The data D10 can have topography (e.g. curves, inclines, slopes, etc.) and climate data, such as map data, navigation data, congestion data (current and / or forecast), weather data (e.g. temperature forecast and precipitation forecast, headwind or tailwind forecast ) etc.

In the process step S14 vehicle data or parameters (data D12 ) can be called up and evaluated. For example, the data can be transmitted by sensors in the motor vehicle 10 recorded, calculated based on sensor measurements and / or model-based using appropriate simulation models e.g. B. be determined in the control units involved. The data D12 For example, an engine power, efficiency, a capacity, aging conditions (e.g. the traction battery or the fuel cell device), a charge level or a tank filling, a quick charge option, a range of an optionally available range extender , a total mass or a payload mass, a temperature of the traction battery, loss maps, etc. of the motor vehicle 10 affect. Thus, in process step S14 for example a current range of the motor vehicle 10 be determined.

The determination of the current range can take additional parameters into account, such as the data D10 on topography, traffic flow and / or weather in relation to candidates for possible routes. For example, have slopes, inclines, traffic jam (s) and / or the Need the air conditioning or certain headlights of the vehicle 10 to use, an influence on the consumption of the motor vehicle 10 .

Additionally or alternatively, for example, a planned change in the payload (for example specified in the method step S10 ) of the motor vehicle 10 be included. For example, the payload can be planned at an intermediate destination by loading or unloading the motor vehicle 10 change significantly, which results in a significant change in consumption and thus in range from this intermediate goal.

It is also possible, for example, by means of the communication interface 20th Energy consumption data from comparable motor vehicles (e.g. comparable type, comparable total mass and / or comparable motorization) that the candidates for possible routes have already driven or have driven on, at least in part, are received and taken into account when determining the current range.

In the process step S16 can optimize and / or adapt the candidates for possible routes with regard to charging and / or refueling options for the motor vehicle 10 taking into account the current range (and future ranges). For this purpose, for example, stationary energy supply devices which are located between the starting point and the destination point can initially be determined. Depending on the design of the motor vehicle, energy supply locations can be, for example, electric charging stations or hydrogen filling stations. The determined energy supply devices are included in the route planning so that the motor vehicle 10 can be charged or refueled at the energy supply devices when driving to the destination, if necessary.

In the process step S18 A check can be made with regard to the availability of parking lots, rest stops, hotels and / or energy supply facilities planned in the candidates for routes. Corresponding data can be used for this D14 from the communication interface 20th sent and received. The data D14 can in particular have current and / or planned infrastructure information. These include, for example, a fast charging capability with regard to the energy supply facilities, a parking space availability, a commercial vehicle charging facility, a capacity utilization, an energy supply facility availability, a charging power, a charging time, a charging technology, a reservation facility, etc. Energy supply devices are determined, their charging technology with the charging technology of the motor vehicle 10 is compatible and / or is (likely) available and / or can be reserved for the planned arrival.

If desired, in process step S18 the determined available energy supply devices are coordinated with the specified break regulation. Thus, for example, those, in particular available, energy supply devices can be selected for the routes which, when they are reached in a planned / precalculated manner, a driver break according to the break regulation is necessary or would be shortly. The required driver break or driving time interruption can expediently at least partially when charging or refueling the motor vehicle 10 be spent. For route planning, parking spaces, rest stops and / or hotels can also be taken into account, if necessary, where the driver's break (s) can also be taken in accordance with the break regulations.

The route planning can be done in the process step S18 be specified in such a way that, for example, by selecting, adapting or optimizing the candidates for routes, suitable route suggestions are determined. An optimization method can optimize a number, a duration and / or a location for required charging or refueling stops, taking into account the criteria mentioned. The suggested routes can be determined, as described above, in particular taking into account the energy supply devices determined, the range of the motor vehicle, the break regulation and / or the change in the payload specified with regard to possible intermediate destinations. At least one suggested route can thus preferably be made visually via the user interface 22nd are issued. The suggested routes can have one or more stops at energy supply devices, which are preferably coordinated with one or more driver breaks in accordance with the break regulation.

The driver of the motor vehicle 10 or the operator of the user interface 22nd can choose one of the suggested routes via the user interface 22nd confirm directly (procedural step S20 ). The process can then be carried out in one process step S24 Continue. It is also possible to make manual adjustments to a desired route proposal using the user interface 22nd be carried out (process step S22 ). The method can then, if desired, for example again with the method step S16 continue, or, if necessary according to the adaptations, with an even earlier process step, for example process step S10 , S12 , S14 Continue.

If possible and / or desired, in process step S24 For example, reservations and / or bookings can be requested for the energy supply facilities, parking spaces or hotels contained in the selected route proposal. The communication interface 20th for example data with a server-based booking system D16 change. The booking system can for example be implemented as a web service and / or have an accounting system.

In the process step S26 the reservations and / or bookings are confirmed binding or non-binding. This means that the suggested route can be implemented as required. The car 10 can now in process step S30 Departure and while driving from the navigation system 12 be guided along the selected route proposal. During the journey, the selected route proposal can be continuously updated and checked for plausibility, especially if, for example, unforeseen or unplanned changes in the data D10-D16 occur. In particular, real-time or current data can be taken into account here, in particular with regard to the current range of the motor vehicle 10 , Traffic flow information, weather information, consumption information, etc.

However, it is also possible that in process step S28 at least one of the reservations and / or bookings is not confirmed or declined. The method can then for example again with the method step S16 be continued.

It is possible that when the motor vehicle 10 the automated or autonomous driving system 14th has, additional autonomous drivable route sections are determined for the route proposals. These route sections can, for example, via the user interface 22nd are displayed, for example when the route suggestions are output and / or while the motor vehicle 10 is guided along the selected route. The driver can see which part of the route the motor vehicle is 10 can probably drive automatically or autonomously. The driver can thus see how much time he can plan for professional or private secondary activities and in what period of time during the journey (e.g. beginning, middle or end of the journey) the secondary activities can be carried out.

While the vehicle is in motion 10 The operation of the motor vehicle can, if desired and / or available, along the selected route proposal 10 can be optimized or adapted.

For example, it can be determined while driving that a current range of the motor vehicle 10 is not sufficient to reach a next or next planned energy supply facility. It can also be determined that the next planned energy supply facility is occupied upon arrival. In such cases, an automatic or manually confirmable adaptation of an operation of the motor vehicle 10 with the aim of reducing consumption. This can be done in manual, automated or autonomous operation of the motor vehicle 10 happen. For example, a speed of the motor vehicle 10 in an automated or autonomous operating mode of the motor vehicle 10 be reduced. Consumption can also be reduced by lowering the power consumption of secondary consumers of the motor vehicle 10 necessary for the safe operation of the motor vehicle 10 are not required. Such secondary consumers can, for example, be a heater, a cooling system, an air conditioning system and / or a display of the user interface 22nd of the motor vehicle 10 etc. be. It is possible, for example, to regulate the secondary consumers down or to switch them off completely. Alternatively or additionally, for example, a maximum drive power output of the drive unit of the motor vehicle 10 be reduced.

As a further example, the driver state, preferably a state of fatigue, of the driver of the motor vehicle can also be used while driving 10 be determined. The suggested route can be adjusted accordingly, e.g. B. automatically or after manual confirmation. For example, the driver can take a break, recharge or refuel the motor vehicle 10 be preferred if driver fatigue is detected, or delayed if the current range of the motor vehicle 10 etc. allow this and no driver fatigue is determined.

The invention is not restricted to the preferred exemplary embodiments described above. Rather, a large number of variants and modifications are possible which also make use of the inventive concept and therefore fall within the scope of protection. In particular, the invention also claims protection for the subject matter and the features of the subclaims independently of the claims referred to. In particular, the individual features of independent claim 1 are disclosed independently of one another. In addition, the features of the subclaims are also disclosed independently of all the features of independent claim 1 and, for example, independently of the features relating to the individual method steps of independent claim 1.

List of reference symbols

10

Motor vehicle

12

navigation system

14th

Driving system

16

Location device

18th

Environment detection sensors

20th

Communication interface

22nd

User interface

24

Tachograph

S10-S30

Procedural steps

D10-D16

Information / data

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102010039075 A1 [0003]

Claims (15)

A method for driving a motor vehicle (10), preferably electric or hydrogen-powered, particularly preferably a commercial vehicle, comprising: Specifying a starting point and a destination point of a route; Specifying a time interval regulation for a driver break for a driver of the motor vehicle (10); Determining a current range of the motor vehicle (10); Determining energy supply devices, preferably electrical charging locations for charging the motor vehicle (10) or hydrogen filling stations for refueling the motor vehicle (10), between the starting point and the destination point; Determination of at least one route guidance proposal from the starting point to the destination point based on the time interval regulation, the current range and the energy supply devices; and Output of the at least one route guidance proposal. Procedure according to Claim 1 , wherein: the at least one suggested route is determined in such a way that the driver's break and charging or refueling of the motor vehicle (10) are coordinated with one another at an energy supply device, wherein preferably: the at least one suggested route is determined in such a way that the driver's break falls within a period of time, in which charging or refueling of the motor vehicle (10) is planned at an energy supply device; and / or the at least one route guidance proposal is determined in such a way that charging, charging or refueling of the motor vehicle (10) at an energy supply device occurs during a period in which the driver's break is planned. Procedure according to Claim 1 or Claim 2 , wherein: the temporal break regulation requires a driver break with a predetermined length and / or after a predetermined journey time; and / or the temporal break regulation has a statutory driving time, rest time, break time and / or working time for the driver of the motor vehicle (10); and / or the temporal break regulation has a driver break desired by the driver and / or the temporal break regulation is provided by a tachograph (24) of the motor vehicle (10); and / or the temporal break regulation has regional driving bans, preferably including Sunday driving bans and / or holiday driving bans, and / or temporary driving bans. Method according to one of the preceding claims, wherein: when determining energy supply devices, only those energy supply locations are determined whose charging technology is compatible with a charging technology of the motor vehicle (10); and or when determining energy supply facilities, only those energy supply locations are determined that are available and / or can be reserved for the planned arrival; and or when determining energy supply devices, a respective charging power and / or a charging time is additionally determined, and the determination of the at least one route guidance proposal is additionally based on the charging power and / or the charging time. Method according to one of the preceding claims, further comprising: Specifying a minimum charge level or a minimum tank filling of the motor vehicle (10), which must not be undercut during the route guidance, wherein the determination of the at least one route guidance suggestion and / or the current range is additionally based on the minimum charge level or the minimum tank filling. Method according to one of the preceding claims, wherein determining a current range comprises at least one of: Determining a current vehicle mass and / or a current payload mass of the motor vehicle (10); Determining a wear state of a traction battery or a fuel cell device of the motor vehicle (10); Determination of topography information, traffic flow information and / or weather information, preferably with regard to possible routes or route sections between the starting point and the destination point; Determining an energy consumption of at least one other, preferably comparable, motor vehicle (10) on possible routes or route sections between the starting point and the destination point; Determining a current electrical state of charge or a current tank filling of the motor vehicle (10). Method according to one of the preceding claims, further comprising: specifying an intermediate destination with a planned change in a payload of the motor vehicle (10); and wherein the determination of the at least one route guidance proposal and / or the current one Range is also based on the intermediate goal and the planned change in the payload. Method according to one of the preceding claims, further comprising: Determining parking lots, rest stops and / or hotels between the starting point and the destination point; and the determination of the at least one route guidance proposal is additionally based on the determined parking spaces, rest stops and / or hotels. Method according to one of the preceding claims, further comprising: Reserve or book at least one energy supply device, a parking lot and / or a hotel of a route guidance proposal selected by the driver. Method according to one of the preceding claims, further comprising: Determination of autonomously and / or automatically navigable route sections which lie in sections between the starting point and the destination point, wherein the determination of the at least one route guidance suggestion is additionally based on the autonomously and / or automatically navigable route sections. Method according to one of the preceding claims, further comprising: Adaptation of a route proposal selected by the driver while driving the motor vehicle (10) along the selected route proposal based on the time interval control, a current range, energy supply devices between a current location and the destination and real-time data, preferably relating to a current range of the motor vehicle (10), Traffic flow information, weather information and / or consumption information. Method according to one of the preceding claims, further comprising: Adapting an operation of the motor vehicle (10) to reduce consumption when it is determined that: - a current range of the motor vehicle (10) is not sufficient to reach a next or next planned energy supply device; or - the next planned energy supply facility is occupied on arrival. Procedure according to Claim 12 wherein the adaptation of the operation comprises at least one of: reducing a speed in an automated or autonomous operating mode of the motor vehicle (10); Reducing a power consumption of at least one secondary consumer of the motor vehicle (10), preferably a heater, a cooling system, an air conditioning system and / or a user interface (22) of the motor vehicle (10); and limiting a maximum drive power output of the motor vehicle (10). Method according to one of the preceding claims, further comprising: Monitoring a driver condition, preferably a fatigue condition, of the driver of the motor vehicle (10) while driving the motor vehicle (10) along a selected suggested route; and Adaptation of the selected route proposal based on the monitored driver's state, preferably such that charging or refueling of the motor vehicle (10) at an energy supply device and / or the driver's break is brought forward or delayed. Motor vehicle (10), preferably commercial vehicle, having: a control unit (12, 14), which is preferably permanently installed in the motor vehicle (10) or included in a mobile terminal, the control unit (12, 14) being designed to carry out a method according to one of the preceding claims.

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