Brake Force Distribution for Low-Traction Front Wheel Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle braking systems struggle to maintain stability on low-traction roads, leading to wheel locking and side slipping, which are dangerous conditions, especially when integrated Antilock Brake Systems (ABS) fail to prevent rear wheel locking.
Innovation Solution
A method that determines if front wheels are on a low-traction road by analyzing axle speed and braking force dynamics, distributing braking force only to the front wheels to prevent rear wheel locking and side slipping, using a braking force distribution apparatus with a determination and calculation module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ABS system distributes braking force to both front and rear wheels, then braking efficiency is improved, but rear wheel locking and side slipping occur on low-traction roads
Solution Approach 1:
The patent applies local quality by differentiating braking force distribution based on wheel location and road conditions. When front wheels detect low-traction conditions, the system applies braking force only to the front axle, while excluding the rear axle from braking. This localized approach prevents rear wheel locking that would cause side slipping, while maintaining adequate braking efficiency through front wheel braking alone.
2Productivity
If braking force is increased to improve stopping distance, then braking efficiency is improved, but wheel locking occurs on low-traction roads
Solution Approach 1:
The patent implements dynamics by continuously monitoring axle speed and dynamically adjusting braking force distribution based on real-time road condition detection. The system calculates the degree of dynamic changes in axle speed and automatically adapts the braking strategy - applying full braking force on high-traction roads and restricting to front-wheel-only braking on low-traction roads, thereby maintaining vehicle stability while optimizing braking efficiency.
3Reliability
If ABS system is activated to prevent wheel locking, then braking stability is improved, but rear wheel side slipping cannot be eliminated on extreme roads
Solution Approach 1:
The patent applies segmentation by dividing the braking system into independent front and rear axle control zones. The detection mechanism monitors front axle conditions separately, and the control system independently adjusts braking force for each axle. This segmentation allows the system to restrict rear axle braking when front wheels detect low-traction conditions, eliminating the harmful effect of rear wheel side slipping while maintaining front wheel braking stability through ABS.
Data Source
Figure 1~2
AI summary
The disclosure provides a braking force distribution method for a vehicle, a computer-readable storage medium, a braking force distribution apparatus and a vehicle. The braking force distribution method includes the following steps: determining, in response to stepping on a brake pedal, whether front wheels are located on a low-traction road; distributing a theoretical braking force depending on a stepped extent of the brake pedal to a front axle if the front wheels are located on the low-traction road; otherwise, distributing the theoretical braking force to both the front axle and a rear axle. By controlling a hydraulic brake unit for rear wheels to stop operating and only distributing a braking force to the front wheels when detecting that the front wheels are located on the low-traction road, the braking force distribution method according to the disclosure can reliably prevent the dangerous phenomenon of locking and side slippage of the rear wheels.