Vehicle Brake Fluid Circulation for Cold-Temperature Response Stability
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Solution Overview
Problem
Conventional electronic braking systems face issues with temperature-induced viscosity changes in brake fluid, leading to responsiveness fluctuations and instability due to temperature differences between the front and rear ends of the braking system, which existing control methods fail to adequately address.
Innovation Solution
A processor-controlled braking system and method that circulates brake fluid through the hydraulic circuit to equalize temperatures by monitoring and adjusting the number of circulations based on temperature differences and outside conditions, using a pumping process to maintain uniform brake fluid temperature across the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If brake fluid is circulated multiple times to equalize temperature, then temperature uniformity improves, but system complexity increases
Solution Approach 1:
The braking system uses its own operational heat generation to warm the brake fluid, eliminating the need for external heating devices. The motor and valve operations naturally generate thermal energy that circulates through the hydraulic circuit, allowing the system to self-regulate temperature uniformity without additional complexity
Solution Approach 2:
The brake fluid circulation is performed continuously during motor and valve operations, ensuring that temperature equalization occurs naturally throughout the system. This continuous circulation leverages ongoing system operations rather than requiring separate heating cycles, maintaining simplicity while achieving temperature uniformity
2Speed
If control parameters are reduced to improve responsiveness, then braking responsiveness improves, but pressure stability deteriorates
Solution Approach 1:
The system monitors temperature differences between the front end (motor and valve area) and rear end (calipers and wheel cylinders) of the braking system. Based on this feedback, the processor dynamically adjusts brake fluid circulation to maintain pressure stability while preserving braking responsiveness. The feedback mechanism allows the system to compensate for temperature-induced viscosity changes without requiring excessive control parameters
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
The solution enhances braking responsiveness and stability by reducing temperature disparities, ensuring smooth fluid circulation and stable braking performance, particularly in extreme cold conditions.
Implementation Method 1
controls brake fluid of the vehicle to circulate through a hydraulic circuit of the braking system... so that a temperature difference between a front end and rear end of the braking system is reduced
Implementation Method 2
the brake fluid near a motor and a valve at the front end of the braking system increases in temperature due to the thermal energy generated by the operation of the motor and valve
Data Source
AI summary
A braking system for a vehicle according to an aspect of the present disclosure includes a processor and memory that stores at least one instruction executed by the processor. The processor compares an outside temperature of the vehicle with a preset reference outside temperature and controls brake fluid of the vehicle to circulate through a hydraulic circuit of the braking system based on the comparison results, so that a temperature difference between a front end and rear end of the braking system is reduced.