Refrigerated Cargo Zone Control for Door Opening and User Movement

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Refrigerated cargo trucks experience temperature fluctuations due to faults in cooling systems or user actions, leading to excess energy consumption and inconvenience.

Innovation Solution

A temperature management system that monitors user movements and access door operations, adjusts package storage locations, and recommends maintenance to optimize energy use and cooling efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the access door is opened frequently or left open during loading/unloading, then delivery personnel can efficiently access packages, but temperature in the refrigerated zone increases and energy consumption increases

Engineering Contradiction:
Improvedelivery efficiencyVSAvoidcooling energy
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The system pre-cools the refrigerated zone before delivery personnel need to access packages. By maintaining optimal temperature in advance and monitoring door opening patterns, the system prepares the environment so that minimal additional cooling is needed during actual access operations, reducing energy loss while maintaining delivery efficiency

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors temperature, door opening frequency, and package location data to provide real-time feedback to delivery personnel. This feedback loop enables personnel to adjust their actions (e.g., closing doors promptly, batching accesses) to maintain temperature while completing deliveries efficiently

Inventive Principle:
Principle #23Feedback

2Productivity

If delivery personnel move extensively within the refrigerated zone to access packages, then all packages can be delivered, but user inefficiency increases and temperature stability decreases

Engineering Contradiction:
Improvedelivery completionVSAvoiduser efficiency
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system pre-positions packages closer to the access door based on delivery route predictions and historical data. By organizing packages in advance according to likely access patterns, delivery personnel minimize their movement within the refrigerated zone, improving both efficiency and temperature stability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts package storage locations based on real-time delivery information, weather conditions, and predicted access patterns. Packages are automatically repositioned or recommended for relocation to optimize access efficiency while minimizing the need for personnel movement during deliveries

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the cooling system operates continuously to maintain temperature, then temperature stability is maintained, but energy consumption increases

Engineering Contradiction:
Improvetemperature stabilityVSAvoidcooling energy
Core Design Contradiction:
Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The cooling system operates periodically rather than continuously, activating based on predicted temperature fluctuations from door openings or package movements. The system uses sensor data and historical patterns to schedule cooling cycles that maintain temperature stability while minimizing energy consumption by keeping the system idle when not needed

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts cooling parameters (temperature setpoints, fan speeds, compressor capacity) based on real-time conditions such as ambient temperature, door opening frequency, and package load. By changing operational parameters to match actual needs rather than maintaining fixed settings, the system maintains temperature stability with reduced energy consumption

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12391092B2Delivery vehicle temperature management systems and methods
Publication Date: 2025.08.19 FORD GLOBAL TECH LLC
  • US12391092B2 patent drawing
  • US12391092B2 patent drawing
  • US12391092B2 patent drawing

AI summary

A refrigerated delivery vehicle is disclosed. The vehicle may include a refrigerated cargo zone configured to store a plurality of delivery packages. The refrigerated cargo zone may include an access door. The vehicle may further include a detection unit configured to detect a user movement in the refrigerated cargo zone and an access door movement when the vehicle may be traversing a delivery route or parked. The vehicle may further include a processor configured to obtain inputs from the detection unit, and determine a user inefficiency parameter based on the inputs. The processor may be further configured to compare the user inefficiency parameter with a threshold inefficiency parameter. The processor may output a notification instructing the user to reduce the user movement or the access door movement when the user inefficiency parameter may be greater than the threshold inefficiency parameter.