DE102009028516A1 - Method for detecting and configuring drive train components in vehicle, involves connecting control units of drive train components with each other for data exchange by network-based communication system - Google Patents

Abstract

The method involves connecting the control units of the drive train components with each other for data exchange by a network-based communication system. A vehicle identification number is conveyed as a message to the control units over the network-based communication system after the activation of the motor of the vehicle so that the corresponding data fields for the drive train components are loaded in the control units.

Description

The The present invention relates to a method for detecting and configuring of driveline components according to the preamble of claim 1 closer defined type.

Out In automotive engineering, it is known that the powertrain components a vehicle electronically via each assigned Controllers are controlled. That is why for the correct functioning a mutual exchange of information signals essential. This information exchange takes place via a network-based communication system.

If for example, one of the powertrain components during the life of the vehicle by another drive train component is replaced or the transmission installed in another vehicle is, is the Bedatung of the control units respectively the configuration is no longer correct, so performance is affected because the data is not intended for the new environment is.

For example, from the document DE 199 64 013 A1 For example, a method and apparatus for controlling operations in a vehicle is known. In the method, a configuration is entered in a non-volatile memory, a so-called EEPROM, which is tuned to the provided in the vehicle powertrain components, in which the transmission is installed. After starting the vehicle, this configuration is loaded from the EEPROM. However, if the transmission is installed in another vehicle with a different engine, the same data field is still loaded, which, however, no longer matches the new environment.

In addition, from the document DE 195 06 296 C1 a method for Getriebetpermittlung known. In the known method, all sensors and actuators of the transmission are controlled to determine the components used in the transmission after switching on the ignition. In this case, a plurality of signals are read in and processed by the modules, which not only requires a considerable amount of processing, but is also time-consuming.

Of the The present invention is based on the object, a method to propose the genus described above, in the simplest way the individual powertrain components and the coordinated ones Data fields are checked.

These The object is achieved by the features of claim 1. Further advantageous embodiments emerge from the dependent claims and the drawing.

It Thus, a method for detecting and configuring powertrain components is provided proposed a vehicle in which the control units the powertrain components via a network-based Communication system are connected to each other for data query, wherein after activating the engine of the vehicle, a vehicle identification number or the like as a message, for example, as Message VI, about the network-based communication system is transmitted, so that the associated data fields for the respective powertrain components are loaded and configured. The message VI serves to transfer the VIN and thus identifies each individual vehicle clearly with respect to Manufacturer, year, engine type, brake system and weight class.

On This way can be particularly easy the existing or connected driveline components detected and the corresponding Data fields are activated for the correct configuration of the data, so that a software adjustment if necessary interim replacement of individual powertrain components realized with the method according to the invention becomes. This is a dynamic identification in the vehicle possible, so that always uses the optimal data field as a configuration becomes. This is advantageously done by sending only a single message instead of the usual realized several required information signals, since the Information content at the vehicle identification number by the legislator is prescribed. Thus, a comparatively low computing power requires the correctly matched transmission configuration and, if necessary, to take account of changes.

in the Frame of an advantageous embodiment can at be provided in the method according to the invention, that via the communication system for reading the vehicle identification number a global request to each controller of the intended Powertrain components is sent. This will ensure that the control unit stored with the vehicle identification number is activated to send the message to the controllers of the to send other powertrain components.

However, it is also possible that by the deposited with the vehicle identification number control unit by itself quasi the message to each control unit of the proposed powertrain automatically sends components. Other approaches are possible.

Independently from the way the message is transmitted with the method according to the invention an acknowledgment the respective powertrain components used dynamically and realized in real time and the corresponding data fields for activates the operation of the vehicle.

The Vehicle identification number can according to a preferred development of the invention in the engine control unit be deposited, so this after switching on the ignition the message about the communication system to all Control units automatically sends. However, the vehicle identification number be deposited with any other control devices.

The stored in a control unit vehicle identification number can according to a development of the invention Request at least one further control unit via the communication system requested and to the requesting controller or sent to all controllers.

Preferably Can the vehicle identification number information about the manufacturer, the year of manufacture, the engine type, the brake system and the Weight class of the vehicle included. There are more data possible. It is important that the proposed Process stable and reliable performed can be because the information about the so-called Embassy VI is codified by the legislature and thus all manufacturers are obliged to comply at least with this information content.

The The present invention will be further explained with reference to the drawing. The sole figure of the invention shows a possible flow chart a possible embodiment of an inventive A method for detecting powertrain components in a Vehicle.

Out The flowchart shown in the figure shows that In principle, two different ways are possible to the required information to the associated powertrain components and activate the corresponding data fields.

To switching on the ignition can, for example, a global Request to all electronic control units, such as the engine control unit EECU, the gearbox control unit TECU or other ECUs used a network-based communication system CAN be sent, to find out in which of the used controllers the vehicle identification number F-I-Nr. is deposited. As soon as the global request for the control units EECU, TECU, ECU has been received, the corresponding control device with the vehicle identification number F-I-Nr. the message VI with the vehicle identification number F-I-Nr. to the other controllers EECU, TECU, ECU send. Thus, after receiving the message VI, the correct data fields are loaded adaptively and dynamically.

It It is also possible that after switching on the ignition the control unit in which the vehicle identification number F-I-Nr. is deposited, the message VI automatically to the other control devices sends. Also with this variant can afterwards the correct data fields are loaded.

Independently from the respective embodiment in the invention Method may be provided that at least during the detection a powertrain component that is not compatible with the associated data field a corresponding protective function via the communication system CAN is initiated, which is not further indicated in the figure is.

The Method proposed according to the invention is not only related to a gear, but it applies to each Control unit in the powertrain network, which is dynamic and adaptively recognize the environment and that existing environment would like to adapt.

reference numeral

• ECU

  electronic control unit

  TECU

  Transmission Control Module

  EECU

  Engine control unit

  CAN

  network-based communication system

  F-I-Nr.

  Vehicle identification number

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 19964013 A1 [0004]
• - DE 19506296 C1 [0005]

Claims (7)

Method for detecting and configuring drive train components in a vehicle, wherein the control units (EECU, TECU, ECU) of the drive train components are connected to each other via a network-based communication system (CAN) for data exchange, characterized in that after activating the engine of the vehicle at least one vehicle identification Number (FI No.) is transmitted as a message via the network-based communication system (CAN) to the control units (EECU, TECU, ECU), so that the corresponding data fields for the respective powertrain components in the control units (EECU, TECU, ECU) loaded become. Method according to claim 1, characterized in that that via the communication system (CAN) for reading the Vehicle identification number (F-I-Nr.) A global request to each control unit (ECU) of the proposed powertrain components is sent. Method according to one of the preceding claims, characterized in that by the vehicle identification number (F-I-Nr.) The control unit (ECU) deposited the message each control unit (ECU) of the powertrain components automatically is sent. Method according to one of the preceding claims, characterized in that based on the message about the vehicle identification number (F-I-Nr.) the individual powertrain components be recognized dynamically and in real time and the corresponding ones Data fields for the operation of the vehicle are activated. Method according to one of the preceding claims, characterized in that at the detection of at least one not powertrain component compatible with the associated data field corresponding protective function via the communication system (CAN) is initiated. Method according to one of the preceding claims, characterized in that the vehicle identification number (F-I-Nr.) Is stored in the engine control unit (EECU), and that after turning on the ignition the message is over the communication system (CAN) to all ECUs (ECU, TECU) automatically to configure powertrain components is sent. Method according to one of the preceding claims, characterized in that via the vehicle identification number (F-I-Nr.) Information about the manufacturer, the year of manufacture, the engine type, the brake system and the weight class of the vehicle.

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