DE102009027673A1 - A driver information system, vehicle and method for transferring data between a driver information system and a vehicle - Google Patents

Abstract

A driver information system (10), in particular a navigation device and / or an on-board unit for a toll system, comprises a connection device (20) for connection to a maintenance interface (18) which is provided for connection to a diagnostic device of a vehicle (14), comprising according to an OBD standard. A vehicle (14) comprises a control unit (24) and / or an actuator (28), which is provided to be used by a driver information system (10), in particular by a navigation device and / or by an on-board unit for a toll system for receiving data via a maintenance interface (18), the maintenance interface (18) comprising an interface according to an OBD standard. A method for transferring energy and data between a driver information system (10) and a vehicle (14) comprises transferring energy and data via a maintenance interface (18) of the vehicle (14), the maintenance interface (18) being an interface according to a Includes OBD standards.

Description

The The invention relates to a driver information system, in particular a Navigation device and / or an on-board unit for a toll system, wherein the driver information system is a connection device for connection to a maintenance interface that connects to a diagnostic device of a vehicle is provided.

About that In addition, the invention relates to a vehicle comprising a control unit, intended to be provided by a driver information system, in particular from a navigation device and / or an on-board unit for a toll system, via a service interface data to receive.

Furthermore The invention relates to a method for transmitting Data between a driver information system and a vehicle.

State of the art

DE 101 20 465 B4 describes a module that includes a computer and can be operated in a designated adapter-like holder in a vehicle. Terminal contacts on a bearing surface of the holder cooperate with corresponding contact members on a rear side of the module, whereby the module is electrically connected to the holder. The module has a power supply that is electrically connected to the vehicle via the contacts and contact elements. A connection to a vehicle data bus is preferably realized in the holder, which may have CAN connections for communication with a vehicle computer. The holder is an integral part of the vehicle device. An existing control and display unit for an existing navigation system can be used more effectively. The module can be designed to receive and store diagnostic and service-relevant data of the vehicle.

Out Cost reasons, many new car buyers decide against the purchase of a high quality driver information system as Optional equipment. Also for cost reasons are harnesses for today's new vehicles equipped only with such lines, those for the control units of the respective vehicle configuration are provided. If a vehicle owner after the vehicle purchase to do so decides, a first-same driver information system retrofit, this can only by accepting a very high cost of change. Because for a cable harness must be separated, and it must new lines for the driver information system under consideration EMC measures. Especially such vehicle owners who even when buying new cars for cost reasons against a Driver information system or instead of a new car have purchased a used car, accept this cost usually no longer, but buy a commercial one So-called aftermarket product.

Disclosure of the invention

It An object of the present invention is a driver information system provide that compared to conventional aftermarket products offers a cost advantage and / or added value to vehicle owners to move to the purchase of a retrofit solution, the is comparable to an initial equipment. Besides that is it is an object of the present invention to provide a vehicle that compared to vehicles that just retrofit With conventional aftermarket systems allow a cost advantage and / or an added value in a use of the invention Driver information system in the vehicle provides. About that In addition, it is an object of the present invention to provide a method to provide with this advantage.

The Invention is based on a generic driver information system in that the driver information system has an interface connected to a maintenance interface according to an OBD standard can be connected (OBD = on-board diagnostics). That's how it works Driver information system with minimal effort to an interface be connected in most of today's vehicles anyway is available. This will be for the driver information system Capabilities of the maintenance interface made usable. For example, the driver information system in this way be networked with a vehicle electrical system. The driver information system can access to and from the maintenance interface a data bus (CAN bus, LIN bus, MOST bus, FlexRay, USB and / or another data bus) of the vehicle at the maintenance interface connected. The driver information system can also be used for be provided a portable operation.

An embodiment of the driver information system includes a data receiving and evaluating device for receiving and evaluating odometer data, fuel stock data, fuel consumption data, oil level data, tire pressure data, vehicle attitude data, vehicle readings, user messages, toll data, display data, driver data, calendar data, time zone information tion, time, maintenance intervals and / or software update data that it can receive via the maintenance interface. With the fuel supply data and fuel consumption data, just-in-time-optimized approaches to open and preferably cheap gas stations can be planned in driving recommendations. With mileage data, toll data, vehicle position data, vehicle measured values, the driver information system can compare its map data with actual road conditions and, in case of deviations, correct and / or supplement the map data.

The Vehicle readings can be speed-dependent Measured values, wheel movement measured values, tachometer measured values, handlebar measured values, Bend measurements, torsion measurements and / or shock absorber readings include.

At least one of the vehicle measurements may be a speed value and / or be an acceleration value.

A Embodiment of the driver information system provides that the vehicle attitude data a yaw angle, a pitch angle, a Roll angle and / or one direction include.

Also is it possible for the driver information system to have a Energy receiving device for receiving energy, the it can take over the maintenance interface.

apart of which, the driver information system may be a data transmitting device for sending data to a controller and / or a Actuator on the maintenance interface.

The Invention is based on a generic vehicle in that the maintenance interface is an interface according to an OBD standard includes.

The above the maintenance interface receivable data can navigation data, Input data, route characteristics, weather data, driving recommendations, User messages, toll information, driver data, calendar data, Time zone information, time and / or maintenance data. One or more of the control devices in the vehicle with such data, for example, lighting settings and / or Chassis properties and / or other driving characteristics of the vehicle affect route characteristics, weather conditions and / or Toll information. Such data can displayed to the driver on a display device of the vehicle become.

The invention is based on the generic method for transmitting data between a driver information system and a vehicle in that information about a database of the vehicle is loaded from a data carrier into a memory of the driver information system. In this case, the memory may comprise a flash memory in which the database of at least one vehicle or vehicle type is loaded at runtime from a data carrier of the navigation. Preferably, the data is transmitted via an interface according to OBD standard transfer.

A Continuing the procedure provides that the procedure as well comprises a step in which a user of the driver information system or the vehicle is prompted via an input one select the vehicle variant corresponding to the vehicle.

Furthermore The method may also include a step in which information about a Database of the vehicle using a message on a Data bus of the vehicle loaded in a memory of the driver information system In particular, the message is vehicle type specific Information about the vehicle and / or information about includes components installed in the vehicle. With such a CAN message a selection of the vehicle variant by a user can be avoided become.

The Invention will now be described with reference to the accompanying drawings particularly preferred embodiments explained.

It demonstrate:

1 a schematic overview of an embodiment of a connection of a driver information system to a maintenance interface in a vehicle;

2 an embodiment of an interface cable for a connection of a driver information system to a maintenance interface in a vehicle; and

3 an embodiment of a pin assignment of the interface cable of 2 ,

1 shows a vehicle 14 with an interior 16 in which a maintenance interface 18 is arranged for connection of a diagnostic system. At the maintenance interface is by means of a plug 32 and / or an adapter 20 a retrofittable driver information system 10 connected, which may be a navigation system and / or an on-board unit for a toll system. Usually there is a suitable maintenance interface 18 in the lower part of an arm ture board or under an ashtray. The plug 32 and / or the adapter 20 or other parts of the driver information system 10 may in turn have a maintenance interface, so that the diagnostic system can be operated even when the driver information system 10 networked with the vehicle. The plug 32 and / or the adapter 20 and / or the driver information system 10 and / or the maintenance interface 18 can be a protection circuit to protect the maintenance interface 18 and / or vehicle electronics against operating a faulty driver information system 10 at the maintenance interface 18 include.

The driver information system 10 can via the maintenance interface 18 Receive data and / or data to a controller 24 and / or an actor 28 in the vehicle 14 send. Data representing the driver information system 10 via the maintenance interface 18 can receive from a sensor 22 and / or a controller 24 in the vehicle 14 by means of a data bus 26 at the maintenance interface 18 to be provided. Data representing the driver information system 10 to the vehicle 14 can send, by means of a data bus 26 in the vehicle 14 to a control unit 24 and / or an actor 28 be conducted in the vehicle. So a driver information system 10 in a vehicle 14 to integrate or network, the driver information system 10 a data bus driver 30 for sending and receiving bus messages. The implementation of the data bus driver 30 requires extra effort. In compensation for this extra effort can be in the driver information system 10 otherwise required rotation rate sensor can be saved. By means of the data bus connection 18 . 30 and a wheel speed signal on the data bus 26 is present anyway, the driver information system GPS positions with an actual position of the vehicle 14 compare. A rotation rate sensor in the driver information system 10 for a determination and triangulation of the vehicle position is then no longer absolutely necessary.

Today's retrofittable driver information systems can be connected to a battery voltage of the vehicle via a 12 V cigarette lighter socket. If the data to be exchanged for the connection of a networkable driver information system is not to be modulated onto the 12 V cigarette lighter connection, the driver information system can 10 via a maintenance interface 18 be supplied with energy, in particular electrical energy. A maintenance interface 18 can optionally be used exclusively for energy transmission or exclusively for data transmission or for combined data and energy transmission.

The maintenance interface 18 can mechanically and / or electrically and / or optically and / or acoustically and / or by radio transmission according to a present or future OBD standard , for example, according to the OBD-II standard be executed. The standardized, American OBD-2 interface (on-board diagnostics 2 , Generation) was with the EU Directive 98/69 / EC adopted as EOBD for Europe. The EU guidelines has since been supplemented several times. European manufacturers had to equip their export vehicles for the USA since 1996 with OBD-2. About such an OBD interface 18 (OBD socket) can be messages on a vehicle's own CAN bus 26 read along. The plug 32 and / or adapters 20 for connection of the driver information system 10 to the maintenance interface 18 can mechanically and / or electrically and / or optically and / or acoustically according to a OBD standard , in particular according to the OBD-II standard be executed. The OBD interface 18 , which has a separate fused power supply, is intended to power an external diagnostic tester. But it can also have a power requirement of a driver information system 10 cover, provided that this is an energy receiving device 31 having.

For a connection of a vehicle information system 10 to a CAN bus 26 and a power supply via an OBD interface 18 all you need is a single cable 20 with an adapter plug 32 , 2 shows an interface cable 20 that is for a connection of a driver information system 10 at a maintenance interface 18 in a vehicle 14 suitable is. 3 shows a pin numbering of such an interface cable 20 , Contacts for a driver information system 10 In particular: Pin 4 - Vehicle ground, Pin 5 - Ground signal, Pin 6 - CAN High, Pin 14 - CAN Low and Pin 16 - Battery (+) - Voltage.

By the proposed arrangement for a driver information system 10 Can vehicle owners a highly networkable driver information system 10 which can be sold in the aftermarket. Such a driver information system 10 can provide the customer with a variety of additional useful features. By means of a connection of the driver information system 10 Mileage data, travel speeds, fuel supply data, fuel consumption data, vehicle position data and vehicle measured values can be linked to a vehicle-side data bus with navigation and / or geodata.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10120465 B4 [0004]

Cited non-patent literature

• - OBD standard [0016]
• - OBD standard [0027]
• OBD II standard [0027]
• - EU Directive 98/69 / EC [0027]
• - EU Directive [0027]
• - OBD standard [0027]
• OBD II standard [0027]

Claims (12)

Driver information system ( 10 ), in particular navigation device and / or on-board unit for a toll system, wherein the driver information system ( 10 ) a connection device ( 20 . 32 ) for connection to a maintenance interface ( 18 ) for connecting a diagnostic device of a vehicle ( 14 ), characterized in that the connecting device ( 20 . 32 ) comprises an interface according to an OBD standard. Driver information system ( 10 ) according to claim 1, characterized in that the driver information system ( 10 ) a data reception and data evaluation device ( 30 ) for receiving and evaluating odometer data, fuel stock data, fuel consumption data, oil level data, tire pressure data, vehicle attitude data, vehicle readings, user messages, toll data, display data, driver data, calendar data, time zone information, time, maintenance intervals, and / or software update data received through the maintenance interface ( 18 ) are receivable. Driver information system ( 10 ) according to claim 2, characterized in that the vehicle measured values include speed-dependent measured values, wheel movement measured values, tachometer measured values, linkage measured values, bending measured values, torsion measured values and / or shock absorber measured values. Driver information system ( 10 ) according to claim 3, characterized in that at least one of the vehicle measured values is a speed and / or an acceleration value. Driver information system ( 10 ) according to one of claims 2 to 4, characterized in that the vehicle attitude data include a yaw angle, a pitch angle, a roll angle and / or a direction. Driver information system ( 10 ) according to one of claims 1 to 5, characterized in that the driver information system ( 10 ) an energy receiving device ( 31 ) for receiving energy via the connecting device ( 20 . 34 ) can be recorded. Driver information system ( 10 ) according to one of claims 1 to 6, characterized in that the driver information system ( 10 ) a data transmission device ( 33 ) for sending data to a controller ( 24 ) and / or an actuator ( 28 ) via the connection device ( 20 . 34 ) having. Vehicle ( 14 ), comprising a control unit ( 24 ) intended for use by a driver information system ( 10 ), in particular by a navigation device and / or an on-board unit for a toll system, via a maintenance interface ( 18 ) Receive data, characterized in that the maintenance interface ( 18 ) comprises an interface according to an OBD standard. Vehicle ( 14 ) according to claim 8, characterized in that via the maintenance interface ( 18 ) data include navigation data, input data, route characteristics, weather data, driving recommendations, user messages, toll information, driver data, calendar data, time zone information, time and / or maintenance data. Method for transferring data between a driver information system ( 10 ) and a vehicle ( 14 ), whereby the data is transmitted via an interface ( 18 ) of the vehicle ( 14 ), characterized in that the method also comprises a step in which information about a database of the vehicle ( 10 ) from a data carrier into a memory of the driver information system ( 10 ) getting charged. A method according to claim 10, characterized in that the method also comprises a step in which a user of the driver information system ( 10 ) or the vehicle ( 14 ) is prompted by an input to the vehicle ( 14 ) select appropriate vehicle variant. Method according to one of claims 10 or 11, characterized in that the method also comprises a step in which information about a database of the vehicle ( 14 ) using a message on a data bus of the vehicle ( 14 ) in a memory of the driver information system ( 10 ), the message in particular vehicle-type-specific information about the vehicle ( 14 ) and / or information about in the vehicle ( 14 ) includes built-in components.

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