Control system for motor vehicles

• US 6,907,330 B2
• Filed: 05/01/2003
• Issued: 06/14/2005
• Est. Priority Date: 05/02/2002
• Status: Expired due to Fees

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: LISA Drã¤Xlmaier GmbH (Fritz Dräxlmaier Holding GmbH), DaimlerChrysler AG (Mercedes-Benz Group AG)
• Inventors: Eisenmann, Joachim, Huebner-Obenland, Frank, Rueter, Karsten, Kraft, Petra
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): MANCHO, RONNIE M
• Application Number:
  US10/426,977
• Publication Number:
  US 20030236596A1
• Time in Patent Office: 775 Days
• Field of Search: 701/36, 701/48, 340/825.16, 340/825.06, 340/459, 439/502, 439/724, 439/949, 307/10.1
• US Class Current: 701/36
• CPC Class Codes: B60R 16/0315 using multiplexing techniques multiplexing for transmission of signals G08C15/00; multiplexing for electrical communication in general H04J

Abstract

In a control system for motor vehicles having a plurality of functional subsystems, such as a passenger compartment controller, a telematics system, a drive controller and a chassis controller, each functional subsystem has a plurality of control devices, and a central databus. Control devices of different subsystems are combined, in accordance with their spatial arrangement in the vehicle, to form local modules and are connected to one another by means of a module bus. Each module bus is connected to the central databus by means of a module interface.

Claims

1. A control system for a motor vehicle having a central databus and a plurality of functional subsystems, each subsystem including a plurality of control devices, wherein:

the control devices have means for calculating control data by accessing stored data;

control devices of different subsystems are combined to form local modules, according to spatial arrangement of said control devices in the vehicle;

the control devices within a module are connected to one another via a module bus; and

each module bus is connected to the central databus via a module interface;

each module interface has a housing that encloses electronic components; and

each module interface is connected to the central databus by a second interface, and is connected to an associated module bus by a third interface.

2. The control system according to claim 1, wherein the module interfaces and the central databus are combined to form a central module which is disposed at a central location in the vehicle.

3. The control system according to claim 1, wherein the central module is arranged at a floor or a roof of the motor vehicle.

4. The control system according to claim 1, wherein each of the module interfaces comprises a housing in which electronic components can be plugged in and exchanged.

5. The control system according to claim 1, wherein each module interface has components for supplying power to the control devices of an assigned module.

6. The control system according to claim 5, wherein power supply lines run parallel to the central databus and the module bus.

7. The control system according to claim 5, wherein at least one module interface has at least one component that can be plugged in and exchanged, for supplying power to the control devices of an assigned module.

8. A control system for a vehicle, comprising:

a plurality of control subsystems, each having a plurality of controllers for vehicle components, said controllers being situated at diverse locations in the vehicle, and each of said controllers having means for calculating control data by accessing stored data; and

a central databus;

wherein,

said controllers are grouped and incorporated into a plurality of local modules, based on location of said controllers in the vehicle, each such module including controllers of different subsystems, that are situated within a particular vehicle location;

each local module includes a local module databus for communication between controllers in the local module;

each local module includes a module interface coupled to the local module databus;

each module interface is connected to the central databus, whereby controllers of every control subsystem can communicate with other controllers of other subsystems; and

the module interfaces and the central databus are combined to form a central module, which is disposed at a central location in the vehicle.

9. The control system according to claim 8, wherein each module interface has separate electronic components for providing an interface with the central databus, for processing and control tasks and for providing at least one interface with a module bus, which components can be plugged in and exchanged.

10. A method for controlling components in vehicle subsystems in a vehicle having a plurality of subsystems, each of which subsystems includes a plurality of controllers situated at dispersed locations within the vehicle, said method comprising:

grouping said controllers according to their location within the vehicle, and combining controllers of each group to form a local module, each such module including controllers from different subsystems that are situated within a particular vehicle location, and each controller having means for calculating control data by accessing stored data;

communicating among controllers within a particular module via a module databus;

coupling each module databus to a central databus via a module interface;

wherein

each module interface has a housing that encloses electronic components; and

each module interface is connected to the central databus by a second interface, and is connected to an associated module bus by a third interface.

11. A control system for a motor vehicle have a central databus and a plurality of functional subsystems, each including a plurality of control devices, and a central databus, wherein:

the control devices have means for calculating control data by accessing stored data;

control devices of different subsystems are combined to form local modules, according to spatial arrangement of said control devices within the vehicle;

the control devices within a module are connected to one another via a module bus;

each module bus is connected to the central databus via a module interface; and

each module interface has components for supplying power to the control devices of an assigned module.

12. The control system according to claim 11, wherein:

the module interface includes means for sensing a quantity of energy conducted via a power line to at least one control device of an assigned module;

the at least one control device of the module has means for determining a quantity of energy taken up by the control device and/or a

connected load, and for transmitting information about the taken-up quantity of energy to the module interface via the module bus; and

the module interface includes means for comparing the sensed quantity of energy conducted to the at least one control device of the module with the taken-up quantity of energy determined by the at least one control device.