Automatic Axle Lifting System for Truck Tire Blowout Control
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Solution Overview
Problem
Heavy vehicles, such as ready-mix rear discharge trucks, often lose control during tire blowouts or loss of tire pressure, leading to accidents, injuries, and fatalities due to the lack of advanced detection and automatic response systems to prevent swerving, spinning, or rolling over.
Innovation Solution
A safety system that integrates tire pressure sensors connected to a control box via a CAN network, automatically raising the pusher axle and bridge master axles in case of detected low tire pressure to maintain vehicle balance and prevent accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tire pressure sensors and automatic axle lifting system are integrated, then vehicle safety and control during tire blowout is improved, but device complexity increases
Solution Approach 1:
The system automatically detects tire pressure loss through integrated sensors and triggers axle lifting without driver intervention. The control box autonomously processes sensor data and activates the lifting mechanism, enabling the vehicle to self-correct imbalances during tire blowout events.
Solution Approach 2:
The control box serves multiple functions: receiving sensor signals, processing pressure data, determining which axle to lift, and activating the lifting mechanism. This multi-functional design consolidates control logic into a single unit, managing complexity while providing comprehensive safety coverage.
2Loss of time
If automatic axle lifting is implemented, then response time to tire blowout is reduced, but manufacturing cost increases
Solution Approach 1:
Tire pressure sensors continuously monitor pressure levels before blowout occurs, enabling early detection and preventive axle lifting. The system is pre-configured with lift instructions for each axle based on sensor location, allowing immediate response without complex real-time calculations during emergency events.
Solution Approach 2:
The system replaces manual driver judgment and physical axle adjustment with electronic sensors, control logic, and automated lifting mechanisms. This substitution enables faster, more consistent response while consolidating control functions into programmable units that reduce manufacturing complexity.
3Difficulty of detecting and measuring
If tire pressure monitoring is added, then ability to detect blowout in advance is improved, but device complexity increases
Solution Approach 1:
The monitoring system is divided into independent sensor units, each assigned to specific tires on specific axles. Each sensor independently monitors its designated tire and communicates with the control box, which processes information in a modular fashion. This segmentation simplifies integration by breaking down the complex monitoring task into manageable, independent components.
Data Source
AI summary
The present invention relates to an automatic lift system for a pusher axle and/or a bridge axle of a truck. The automatic lift system raises the pusher axle and/or the bridge axle in the event of a tire blowout or low tire pressure to prevent the truck from swerving, spinning out or rolling over. The system includes a tire pressure sensor integrated to each of two wheels connected to the pusher axle and each of the two wheels connected to the bridge axle. Each tire pressure sensor is connected to a wired circuit and controller area network (CAN) of the truck for electronic communication with a control box. The control box receives tire pressure information from the sensors and transmits axle lift instructions in response to the tire pressure.