Adaptive Engineering Vehicle Drive Distribution for Axle Load Balance
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Solution Overview
Problem
Wheeled engineering vehicles face inefficiencies in power performance and fuel economy due to fixed drive forms that fail to adapt to varying working conditions, leading to uneven axle load distribution and tire force deformation, resulting in reduced running efficiency and increased tire wear.
Innovation Solution
A drive system that adjusts its mode in real-time based on pressure loads, speed differences, and running speed of front and rear wheels, utilizing sensors and calculation devices to select between front wheel drive, rear wheel drive, and simultaneous four-wheel drive modes, ensuring optimal power distribution and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed drive form (two-wheel drive or four-wheel drive) is used, then the structure is simple and easy to operate, but the running efficiency and fuel economy are reduced due to inability to adapt to varying working conditions
Solution Approach 1:
The patent implements dynamic drive mode switching by equipping the engineering vehicle with a control system that automatically selects between two-wheel drive and four-wheel drive modes based on real-time detection of working conditions, vehicle speed, and axle load distribution. This dynamic adaptation resolves the contradiction by making the drive form flexible rather than fixed, thereby improving running efficiency without requiring manual intervention from the operator.
Solution Approach 2:
The patent employs feedback mechanisms through pressure detection devices on both front and rear axles, along with speed detection devices, to continuously monitor working conditions. The control system processes this feedback information and automatically adjusts the drive mode accordingly. This closed-loop feedback system enables the vehicle to adapt to varying conditions automatically, resolving the contradiction between ease of operation and running efficiency.
2Power
If manual selection of four-wheel/two-wheel drive is implemented, then power performance is ensured, but operation becomes cumbersome and fuel economy deteriorates
Solution Approach 1:
The patent implements a self-service system where the control device automatically determines and switches between drive modes based on real-time detection of working conditions, eliminating the need for manual operator intervention. The system monitors axle load distribution and vehicle speed, then autonomously selects the optimal drive mode to balance power performance and fuel economy, resolving the contradiction between ensuring adequate power and improving energy efficiency.
Solution Approach 2:
The patent changes the operational parameters of the drive system by dynamically adjusting the engagement of drive axles based on detected working conditions. The control system modifies the drive mode parameter (two-wheel or four-wheel drive) according to varying load conditions and speed requirements, thereby optimizing the balance between power performance and fuel economy without manual intervention.
3Force
If four-wheel drive is used to obtain larger tractive force, then power performance is improved, but running efficiency and fuel economy are reduced due to increased energy consumption
Solution Approach 1:
The patent implements dynamic switching between two-wheel drive and four-wheel drive modes based on real-time detection of working conditions. The control system activates four-wheel drive only when necessary (under high load conditions) and switches to two-wheel drive during normal operation, thereby reducing energy consumption while maintaining adequate tractive force when needed. This dynamic adaptation resolves the contradiction between obtaining large tractive force and minimizing energy loss.
Solution Approach 2:
The patent applies partial action by engaging only the necessary drive axles based on working conditions. Instead of continuously operating all four wheels in drive mode, the system selectively engages front or rear axles according to load distribution and speed requirements, thereby reducing energy consumption while providing sufficient tractive force for the actual working conditions.
4Device complexity
If fixed drive form is used, then device complexity is low, but adaptability to different working conditions deteriorates
Solution Approach 1:
The patent incorporates feedback mechanisms through pressure detection devices on front and rear axles and speed detection devices that continuously monitor working conditions. The control system processes this feedback information and automatically adjusts the drive mode to adapt to different working conditions. This feedback-based adaptation improves versatility without significantly increasing device complexity, as the additional sensors and control logic are integrated into the existing drive system.
Solution Approach 2:
The patent implements a universal drive system that can operate in multiple modes (two-wheel drive and four-wheel drive) to accommodate various working conditions. The control system enables the vehicle to adapt its drive form based on detected conditions, making the drive system versatile enough to handle different load scenarios, speeds, and terrain conditions while maintaining a relatively simple overall structure through shared mechanical components.
Data Source
AI summary
The present disclosure relates to a drive system for an engineering vehicle, a drive method, and an engineering vehicle. The drive system for an engineering vehicle includes: front wheels, rear wheels, a drive device, a first drive axle, a second drive axle, a first pressure detection device, a first calculation device, a speed acquisition device, and a drive distribution device. The first drive axle is connected between the drive device and the front wheels, and the second drive axle is connected between the drive device and the rear wheels. The first pressure detection device is configured to detect a pressure load on the first drive axle and a pressure load on the second drive axle, the first calculation device is configured to calculate a speed difference between the front wheels and the rear wheels, and the speed acquisition device is configured to acquire a running speed of the engineering vehicle. The drive distribution device is in signal connection with the first pressure detection device, the first calculation device, and the speed acquisition device. The drive distribution device is configured to adjust a drive mode of the drive system for an engineering vehicle according to the pressure load on the first drive axle, the pressure load on the second drive axle, the speed difference between the front wheels and the rear wheels, and the running speed.