Vehicle Drive Coordination for Secondary Function Priority Control

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Solution Overview

Problem

Existing drive systems for motor vehicles face challenges in executing secondary functions due to competing requirements, leading to premature termination and inefficiencies in operating mode coordination, necessitating complex software and potential blocking of functions.

Innovation Solution

A drive system with a functional coordination device that coordinates secondary functions, generating an operating mode request based on their coordination and temporal sequence to manage competing functions, thereby reducing data flow and improving execution reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the operating mode coordination unit directly receives execution requirements from multiple secondary functions, then the engine can respond to various functional demands, but the software complexity increases and functions may be blocked or aborted by higher-priority functions

Engineering Contradiction:
Improveresponse to functional demandsVSAvoidsoftware complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a functional coordination unit as an intermediary between secondary functions and the operating mode coordination unit. This coordinator receives execution requirements from multiple secondary functions, determines their priority and compatibility, and generates a single coordinated operating mode request. This mediator structure reduces software complexity by centralizing the coordination logic while maintaining the system's ability to respond to diverse functional demands.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the coordination task by separating the generation of operating mode requests from the evaluation of individual secondary function requirements. The functional coordination unit divides the complex coordination problem into manageable sub-tasks: collecting requirements from multiple functions, determining their compatibility, establishing priority sequences, and generating coordinated requests. This segmentation reduces overall software complexity.

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple secondary functions are executed simultaneously, then the system can perform multiple tasks, but competing functions may interfere with each other causing premature termination

Engineering Contradiction:
Improvemultiple task executionVSAvoidfunction execution reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements periodic action by establishing a temporal sequence for executing secondary functions through the functional coordination unit. When multiple secondary functions are requested, the coordinator determines a priority sequence and schedules their execution in temporal order rather than simultaneous execution. This periodic approach ensures that critical functions complete before less critical ones start, preventing interference and premature termination while still achieving multiple task execution.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The functional coordination unit performs preliminary action by determining the priority sequence and compatibility of secondary functions before execution begins. The coordinator evaluates which functions can be executed simultaneously and which require sequential execution, establishing the execution plan in advance. This preliminary coordination prevents conflicts during execution, ensuring reliable completion of critical functions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3530919B1Drive system, motor vehicle and method for operating a drive system
Publication Date: 2026.04.08 VOLKSWAGEN AG
  • EP3530919B1 patent drawingFigure 1
  • EP3530919B1 patent drawingFigure 2
  • EP3530919B1 patent drawingFigure 3

AI summary

The invention relates to a drive system (1) for propelling a motor vehicle (2), comprising an internal combustion engine (3) and an operating mode coordination device (4) for determining and controlling the operating mode of the internal combustion engine (3). The drive system (1) includes a functional coordination device (5) for coordinating secondary functions (6) of the drive system (1), wherein the functional coordination device (5) is configured to generate an operating mode request (7) for the operating mode coordination device (4) for controlling the operating mode of the internal combustion engine (3) based on the coordination of the secondary functions (6) and to transmit this request to the operating mode coordination device (4). The invention further relates to a motor vehicle (2) with a drive system (1) and a method for operating a drive system (1) of a motor vehicle (2).