Device for controlling the internal combustion engine/drive train for a motor vehicle

• US 20070016356A1
• Filed: 07/17/2006
• Published: 01/18/2007
• Est. Priority Date: 07/18/2005
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: DaimlerChrysler AG (Mercedes-Benz Group AG)
• Inventors: Stelter, Mayk, Kolb, Hartmut
• Application Number:
  US11/487,398
• Publication Number:
  US 20070016356A1
• Time in Patent Office: Days
• US Class Current: 701/103
• CPC Class Codes: F02D 41/266 the computer being backed-up or assisted by another circuit, e.g. analogue

Abstract

In a device for controlling the internal combustion engine/drive train of a motor vehicle, based on process control variables of a combustion process that are distributed among a plurality of subsystems, an optimization unit stores information for carrying out the combustion process. The optimization unit determines the process control variables of the combustion process as a function of detected state and system variables and of at least one predefined value of a drive unit, and outputs them to the plurality of subsystems via corresponding, defined interface units. Distribution of the combustion process among the plurality of subsystems is carried out as a function of logical and physical requirements.

Claims

1. Apparatus for controlling an internal combustion engine/drive train of a motor vehicle based on process control variables of a combustion process, that are distributed among a plurality of subsystems wherein:

an optimization unit stores information for carrying out the combustion process;

the optimization unit determines the process control variables of the combustion process as a function of detected state and system variables and of at least one predefined value of a drive unit; and

outputs said process control variables to the plurality of subsystems via corresponding, defined interface units; and

distribution of the combustion process among the plurality of subsystems is carried out as a function of physical requirements.

2. The apparatus according to claim 1, wherein the subsystems comprise at least one of a fuel metering system, an ignition system, an air metering system, an inert gas metering system and a process control system.

3. The apparatus according to claim 2, wherein the air metering system carries out fully variable valve control.

4. The apparatus according to claim 2, wherein a first process control system carries out engine-internal center of gravity control and engine-internal medium pressure control.

5. The apparatus according to claim 4, wherein a second process control system performs a variable compression process and/or a high-pressure supercharging process.

6. The apparatus according to claim 1, wherein the process control variables comprise an efficiency level, a compression level, a charge pressure and a combustion control process.

7. The apparatus according to claim 1, wherein the state and system variables comprise an engine speed, a cooling water temperature, an ambient pressure and an exhaust gas temperature.

8. The apparatus according to claim 1, wherein the at least one predefined value of the drive unit comprises at least one of a driver setpoint torque, engine setpoint torque, a transmission setpoint torque and a brake setpoint torque.

9. The apparatus according to claim 1, wherein the definition of the interface units comprises in each case an electrical rating, a communications protocol and a specification of data to be transmitted.