Vehicle Braking Control Device with Connection Valve for Pressure Equalization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing braking control devices for vehicles face challenges in managing crosswise differences in brake fluid pressure, especially during sudden brake operations, due to knockback and vehicle vibrations, which conventional fluid pressure feedback control cannot adequately address, leading to energy inefficiencies and unstable braking.
Innovation Solution
A braking control device with a normally-closed electromagnetic connection valve that selectively switches between flowing and non-flowing states based on the braking operation volume, ensuring the connection valve is only powered when necessary to compensate for fluid pressure differences and maintain stable braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the connection valve is kept open to equalize brake fluid pressure between left and right wheel cylinders, then braking stability is improved, but energy consumption increases due to continuous valve actuation
Solution Approach 1:
The connection valve is designed to dynamically switch between open and closed states based on real-time detection of brake fluid pressure differences. The valve remains closed during normal operation to save energy, and opens only when pressure imbalance is detected, creating an adaptive system that optimizes both stability and energy efficiency
Solution Approach 2:
The system incorporates pressure sensors that continuously monitor brake fluid pressure in both wheel cylinders and provide feedback to the control unit. When a pressure difference exceeds a threshold, the control unit actuates the connection valve to equalize pressure, then closes it again, creating a closed-loop control system that maintains braking stability while minimizing energy consumption
2Stability of the object's composition
If the connection valve is used to equalize brake fluid pressure, then crosswise pressure differences are suppressed, but the complexity of the valve control system increases
Solution Approach 1:
The pressure equalization function is extracted from continuous valve actuation and implemented as an event-driven operation. The connection valve is only activated when pressure imbalance is detected, separating the pressure equalization function from continuous control, thereby simplifying the overall control system while maintaining pressure uniformity
Solution Approach 2:
The brake fluid pressure equalization system is designed to self-regulate through automatic detection and actuation. When pressure imbalance occurs, the system automatically opens the connection valve to equalize pressure, then closes it, without requiring continuous external control input, thereby reducing system complexity
3Use of energy by moving object
If the connection valve is normally closed to save power, then energy consumption is reduced, but the system cannot respond quickly to sudden pressure imbalances
Solution Approach 1:
Pressure sensors continuously monitor brake fluid pressure in both wheel cylinders, maintaining readiness to detect imbalances. This preliminary detection capability ensures that when a pressure difference occurs, the system can immediately actuate the connection valve without delay, achieving fast response while keeping the valve closed (and power consumption low) during normal operation
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
This solution reduces energy consumption by only powering the connection valve during insufficient fluid pressure follow-up and independently operates the brake systems, effectively suppressing crosswise differences in brake fluid pressure, thereby enhancing braking stability and efficiency.
Implementation Method 1
a connection electromagnetic valve configured to switch between a normally-closed state and a normally-open state
Data Source
AI summary
A braking control device includes a first wheel cylinder on either the left or right front wheel side of a vehicle; a second wheel cylinder on the other side; a first pressure-regulating mechanism that pressurizes the brake fluid inside the first wheel cylinder; a second pressure-regulating mechanism that pressurizes brake fluid inside the second wheel cylinder; and a normally-closed opening/closing valve interposed in a connecting fluid path connecting the first wheel cylinder and the second wheel cylinder and in which, if a sudden operation is determined, the opening/closing valve is put in a connected state and increases the pressure of the brake fluid inside the first and second wheel cylinders by the first and second pressure-regulating mechanisms.