Towing Warning Suppression Switch for Driver Comfort

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Solution Overview

Problem

During towing operations, vehicles equipped with distance and collision warning systems are unable to switch off these warnings, leading to driver distraction and potential safety risks due to continuous alerts, as the systems are automatically activated when the engine is running.

Innovation Solution

A device with a switching mechanism that allows manual control to prevent or suppress collision and distance warnings, featuring a toggle switch with a towing-specific symbol, automatic reset upon ignition or parking, and integration with hazard warning lights to enhance safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the distance and collision warning system is automatically activated when the engine is running, then the safety warning function is ensured, but during towing operations the system causes driver distraction and comfort degradation due to continuous false warnings

Engineering Contradiction:
Improvesafety warning functionVSAvoiddriver comfort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system dynamically adjusts its operational state based on detected conditions. When towing conditions are detected (through sensor signals indicating abnormal operational parameters), the system automatically transitions from active warning mode to suppressed mode, eliminating false warnings while maintaining safety functionality during normal operations

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs self-diagnosis and self-adjustment by monitoring its own operational parameters and automatically determining when it is in a towing state. This self-service capability allows the system to suppress warnings during towing without requiring external intervention while maintaining safety warnings during normal operation

Inventive Principle:
Principle #25Self-service

2Ease of operation

If the engine is kept running during towing to enable steering assistance, then the vehicle can be steered, but the distance and collision warning system remains activated causing unnecessary alerts

Engineering Contradiction:
Improvesteering capabilityVSAvoidfalse warning alerts
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The system segments the warning output function from the engine control function. By independently controlling the warning system's operational state based on detected towing conditions, the system can maintain engine running for steering assistance while separately suppressing warning alerts that would otherwise be generated during towing operations

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a manual switching means is added to suppress warnings during towing, then driver comfort is improved, but the device complexity increases

Engineering Contradiction:
Improvedriver comfortVSAvoidswitching mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system uses self-service by automatically detecting towing conditions through monitoring existing sensor signals and operational parameters. This automatic detection eliminates the need for manual switching mechanisms, complex buttons, or additional user interfaces, thereby improving driver comfort without increasing device complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses existing sensors and control units for multiple purposes - both for normal safety warning functions and for detecting towing conditions. This multi-functionality approach allows the system to suppress warnings during towing without requiring dedicated additional hardware or complex switching mechanisms

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2921365B1Device and method for preventing the output of collision warnings and/or distance warnings, in particular during a towing procedure, and vehicle
Publication Date: 2020.09.23 ZF CV SYST HANNOVER GMBH
  • EP2921365B1 patent drawingFigure 1~2
  • EP2921365B1 patent drawingFigure 3~4

AI summary

The invention relates to a device 48 and a method for preventing the output of collision warnings 15a and/or distance warnings 15b in motor vehicles 52 with collision warning output devices 14a and/or distance warning output devices 15b, particularly during a towing operation 50, as well as to a vehicle. The device 48 comprises a switching means 10 configured to allow the output of collision and/or distance warnings 15a, 15b in a first state 82 and to prevent collision and/or distance warnings 15a, 15b in a second state 86. Furthermore, the device 48 comprises an actuating means 16 configured to transfer the switching means 10 from the first state 82 to the second state 86 and from the second state 86 to the first state 82 by manual actuation of the actuating means 16.