Vehicle Pet Restraint Retraction Based on Driving Motion

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Solution Overview

Problem

Pets in vehicles often lack effective restraint during dynamic motion, posing safety risks for both pets and vehicle occupants.

Innovation Solution

A pet restraint system comprising a leash connected to a wearable device on the pet, a retractor device secured to the vehicle, and sensors to detect vehicle conditions, with a controller that retracts or locks the leash based on detected conditions such as dynamic motion, agitation, or route changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If pets are allowed to move freely in the vehicle cabin, then pet comfort and ease of operation are improved, but safety and reliability deteriorate during dynamic motion

Engineering Contradiction:
Improvepet freedom of movementVSAvoidpet safety during motion
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The restraint system transitions from a static fixed-position restraint to a dynamic system that automatically adjusts leash tension and restraint force based on real-time vehicle motion detection. Sensors detect acceleration, deceleration, and turning movements, triggering automated leash tensioning to maintain appropriate restraint levels that adapt to changing vehicle conditions while preserving pet comfort during normal operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates sensors that continuously monitor vehicle dynamics and provide feedback to an control mechanism. When the vehicle experiences dynamic motion such as sudden braking or sharp turns, the sensors detect these changes and trigger automated leash tensioning to restrain the pet appropriately. This closed-loop feedback system ensures safety during motion while maintaining pet freedom during stable vehicle operation.

Inventive Principle:
Principle #23Feedback

2Reliability

If automated restraint control is implemented based on vehicle sensors, then pet safety during motion is improved, but device complexity increases

Engineering Contradiction:
Improvepet safety during motionVSAvoidrestraint system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system leverages the vehicle's existing sensor infrastructure (accelerometers, gyroscopes, GPS) that are already present in modern vehicles for navigation and driver assistance functions. By repurposing these multi-functional sensors for pet restraint control, the system achieves automated safety without adding dedicated sensor hardware, thereby reducing overall device complexity while maintaining reliable motion detection and restraint activation.

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

Solution Approach 2:

The control mechanism integrates multiple functions into a single system: vehicle motion sensing, leash tension control, and restraint activation are combined in one automated apparatus. This consolidation reduces the number of separate components needed compared to a system with dedicated sensors and actuators for each function, thereby managing device complexity while achieving reliable automated pet safety during vehicle motion.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the leash is retracted during vehicle motion, then pet safety is improved, but pet comfort and accessibility deteriorate

Engineering Contradiction:
Improvepet safety during motionVSAvoidpet accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system applies preliminary anti-action by detecting vehicle motion parameters (acceleration, deceleration, turning angles) in advance and predicting when restraint will be needed. The control mechanism pre-tensions the leash or activates restraint mechanisms before the pet can be thrown by sudden movements, thereby preventing safety hazards while minimizing the duration and intensity of restraint, thus maintaining pet comfort and accessibility during stable vehicle operation.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS11904794B2Pet restraint system for a vehicle
Publication Date: 2024.02.20 FORD GLOBAL TECH LLC
  • US11904794B2 patent drawing
  • US11904794B2 patent drawing
  • US11904794B2 patent drawing

AI summary

A pet restraint system for a vehicle is provided. The pet restraint system includes a leash configured to connect to a restraint device on a pet, a wearable device comprising one of a collar and a harness configured to be worn on the pet and connected to the leash, a retractor device coupled to the leash and configured to be secured to a support structure on the vehicle, a sensor for detecting an expected condition of the vehicle, and a controller for controlling the retractor to retract or lock the leash based on the determined expected condition of the vehicle.