Separated Brake Pedal and Hydraulic Unit for Stable Braking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic brake systems face challenges in providing stable braking performance and reliability, especially in various operation situations, due to technical issues with electronic components and potential hydraulic pressure instability.
Innovation Solution
An electronic brake system with a pedal unit and a hydraulic pressure providing unit that are physically separated, utilizing a pedal simulator for feedback and solenoid valves for precise control of hydraulic pressure, along with an auxiliary hydraulic pressure device for backup in case of failures, to ensure stable braking across different modes and conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are used to control hydraulic pressure supply, then various braking functions can be implemented, but reliability deteriorates when technical problems occur in electronic components
Solution Approach 1:
The brake system is divided into two independent control paths: a primary electronic brake control path using electronic components for various braking functions, and a secondary mechanical brake control path using a mechanical booster for reliable emergency braking. This segmentation ensures that if electronic components fail, the mechanical path remains available to maintain basic braking functionality.
Solution Approach 2:
The system incorporates a mechanical booster as a backup mechanism that is activated when electronic brake control fails. This beforehand cushioning approach prepares an alternative solution in advance to compensate for potential electronic component failures, ensuring continuous braking capability.
2Ease of operation
If pedal unit and hydraulic pressure providing unit are physically separated, then ease of operation improves, but device complexity increases
Solution Approach 1:
The brake system is segmented into a pedal unit and a hydraulic pressure providing unit that are physically separated and independently controllable. The pedal unit includes a pedal simulator for driver feedback, while the hydraulic pressure providing unit includes both electronic and mechanical pathways. This segmentation allows independent optimization of each unit's function while maintaining overall system coordination through control signals.
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 system achieves stable and reliable braking performance across various operation modes, reduces component loads, improves durability and assembly efficiency, and saves manufacturing costs by ensuring hydraulic pressure stability even when components fail or leakages occur.
Implementation Method 1
a pedal simulator configured to generate a reaction force to a pedal force of the brake pedal and provide a pedal feel to the driver
Implementation Method 2
a hydraulic pressure supply device configured to generate the hydraulic pressure of the pressurizing medium by operating a hydraulic piston by the electrical signal
Implementation Method 3
utilizing a pedal simulator for feedback and solenoid valves for precise control of hydraulic pressure
Data Source
AI summary
An electronic brake system is disclosed. The electronic brake system, according to the present embodiment, comprises: a pedal unit that is connected to a brake pedal and operated by a driver's pedal effort; and a hydraulic pressure providing unit that generates hydraulic pressure of a pressurizing medium for braking a vehicle on the basis of an electrical signal outputted in response to displacement of the brake pedal, wherein the pedal unit and the hydraulic pressure providing unit may be disposed to be physically separated from each other on a vehicle body.