Vehicle Actuation via Trajectory Validation

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Solution Overview

Problem

Existing vehicle systems lack efficient automated actuation mechanisms that can track external objects and validate their trajectory to prevent conflicts with vehicle systems, particularly in determining acceptable ranges and positions for safe operation.

Innovation Solution

An apparatus and method utilizing an external object tracking system, such as radar or passive RF entry systems, to track and validate objects, determining their trajectory and authenticating electronic security tokens to command vehicle actuators like door locks or openers based on non-conflicting trajectory information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If automated actuation is implemented without trajectory validation, then ease of operation is improved, but safety and reliability deteriorate due to potential conflicts with external objects

Engineering Contradiction:
Improveautomated actuationVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary trajectory prediction and validation before executing the actuation command. The controller calculates the projected trajectory of the actuated vehicle system and validates it against predicted object trajectories in advance, ensuring safety before the actuation occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors external objects using tracking systems, feeds trajectory information back to the controller, and adjusts actuation commands based on this feedback. This closed-loop control ensures that automated actuation remains safe by adapting to real-time object positions and movements.

Inventive Principle:
Principle #23Feedback

2Reliability

If external object tracking and validation systems are added, then safety and reliability are improved, but device complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller performs multiple functions including object trajectory prediction, conflict detection, security token authentication, and actuation command generation within a single integrated system. This multi-functionality reduces the need for separate dedicated systems for each function, thereby managing complexity while maintaining safety.

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

Solution Approach 2:

The patent introduces a trajectory validation module as an intermediary between the actuation command generator and the vehicle system actuator. This intermediary layer processes trajectory information and validates commands without requiring complete system redesign, thereby managing complexity through modular addition.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If trajectory prediction and validation are performed, then harmful factors are reduced by preventing conflicts, but use of energy increases due to continuous tracking and computation

Engineering Contradiction:
Improveconflicts with external objectsVSAvoidenergy consumption
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The system performs trajectory validation at periodic intervals and at critical decision points rather than continuously. The controller validates trajectories at predetermined acceptable ranges and before actuation commands are executed, reducing computational load and energy consumption while maintaining safety.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system focuses trajectory validation computations on critical zones and high-risk scenarios rather than uniformly analyzing all possible trajectories. By concentrating computational resources on partial but critical validation cases, the system reduces overall energy consumption while preventing harmful conflicts.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables safe and automated vehicle system actuation by ensuring that external objects, particularly people, are tracked and validated to avoid conflicts with vehicle systems, enhancing safety and convenience through secure and proximity-based access control.

Implementation Method 1

an external object tracking system for tracking an object and providing tracked object trajectory information... The external object tracking system may include at least one of a radar system

Methodology Applied
Scientific EffectRadar: Radar

Implementation Method 2

a passive radio frequency entry system, wherein the external object tracking system comprises a radar system, and wherein the controller configured to validate the tracked object comprises the passive radio frequency entry system configured to authenticate an electronic security token

Methodology Applied
Scientific EffectRadio frequency electromagnetic radiation: Electromagnetic Induction

Implementation Method 3

The external object tracking system may include at least one of a radar system, a lidar system, a passive radio frequency entry system, an ultrasonic system

Methodology Applied
Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Implementation Method 4

The external object tracking system may include at least one of a radar system, a lidar system, a passive radio frequency entry system, an ultrasonic system, and a vision system

Methodology Applied
Scientific EffectLight: Light

Data Source

PatentUS11325563B2Approach-based vehicle system actuation
Publication Date: 2022.05.10 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US11325563B2 patent drawing
  • US11325563B2 patent drawing

AI summary

A system and method for actuating a vehicle system tracks approach to the vehicle and determines propriety of system actuation based upon trajectory information and other conditions.