EV Rear-Wheel Braking Control for Automatic Drifting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle drifting technologies require skilled driver operations, leading to steering wheel kickback and poor driver experience, making it difficult for common drivers to perform drifting maneuvers.
Innovation Solution
A braking system for electric vehicles that includes a central controller and wheel end braking apparatuses, allowing automatic drifting by controlling rear wheel braking forces based on vehicle speed, pedal positions, and steering angles, reducing the need for complex driver inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If driver operations are used for drifting, then drifting can be performed, but complex driver skills are required and steering wheel kickback occurs
Solution Approach 1:
The braking system automatically detects drifting conditions and executes braking maneuvers without requiring complex driver operations. The system monitors vehicle state (steering angle, speed, lateral acceleration) and autonomously applies braking force to rear wheels to induce and control drift, eliminating the need for skilled manual coordination of steering, accelerator, and brake pedals.
Solution Approach 2:
The patent replaces the mechanical driver-operated drifting control system with an electronic automated braking system. The central controller substitutes for the driver's manual operations, using electronic sensors and actuators to detect drifting conditions and execute precise braking commands, thereby eliminating steering wheel kickback and complex driver skill requirements.
2Ease of operation
If automated braking control is used for drifting, then driver operation threshold is reduced, but system complexity increases
Solution Approach 1:
The braking system integrates multiple functions into a single automated control unit. The central controller performs drifting detection, condition monitoring, and braking execution simultaneously, while the braking apparatus serves both normal braking and automated drifting induction functions. This multi-functionality reduces the need for separate dedicated drifting control hardware.
Solution Approach 2:
The system continuously monitors vehicle state parameters (steering wheel angle, vehicle speed, lateral acceleration) and uses this feedback to dynamically adjust braking force application. The central controller receives real-time data from sensors and modulates rear wheel braking to maintain desired drift conditions, creating a closed-loop control system that adapts to changing driving conditions.
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 simple driver operations for drifting, improving control stability and safety, and enhancing the overall driving experience by automating the drifting process.
Implementation Method 1
Each wheel end braking apparatus is configured to output braking force to a brake disc of one wheel to brake the electric vehicle
Data Source
AI summary
A braking system, a method, and an electric vehicle. The braking system includes a central controller and a plurality of wheel end braking apparatuses. Each wheel end braking apparatus is configured to output braking force to a brake disc of one wheel to brake the electric vehicle. The central controller is configured to control wheel end braking apparatuses corresponding to rear wheels of the electric vehicle to output braking force to implement drifting.