Brake Hydraulic Return Layout for Faster Wheel Depressurization
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Solution Overview
Problem
Existing brake systems face challenges in achieving high depressurization efficiency, particularly in vehicles with electrification and intelligence, where issues such as brake-by-wire characteristics and redundancy backups necessitate improved control requirements.
Innovation Solution
The implementation of a hydraulic adjustment unit with dual oil return pipes and oil inlet pipes that function as return pipes during depressurization, along with control valves and a pressure providing apparatus, enhances depressurization efficiency and operating modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional braking system with separate hydraulic circuits is used, then braking safety is maintained, but the system complexity and component count increase
Solution Approach 1:
The patent combines two separate hydraulic circuits into a single integrated hydraulic regulation unit. The first and second regulation units are merged into one compact structure that houses both regulation functions, along with the braking fluid reservoir and communication passages, eliminating the need for separate circuits while maintaining braking safety through redundant regulation pathways.
Solution Approach 2:
The integrated hydraulic regulation unit performs multiple functions within a single component: it regulates braking force through first and second regulation units, stores braking fluid in its reservoir, and provides fluid communication pathways between different circuits. This multi-functional design reduces overall system complexity while maintaining safety.
2Adaptability or versatility
If the braking fluid reservoir capacity is increased to meet future vehicle weight requirements, then the system becomes less adaptable to changing vehicle configurations
Solution Approach 1:
The patent makes the braking fluid reservoir capacity adjustable rather than fixed. The reservoir can be configured with different capacities depending on the specific vehicle application and weight requirements, allowing the same hydraulic regulation unit to adapt to various vehicle types from lightweight to heavy-duty applications.
Solution Approach 2:
The reservoir capacity parameter can be changed to match different vehicle weight classes. By allowing the reservoir size to be adjusted or selected based on application requirements, the system maintains adaptability across different vehicle configurations without being locked into a single fixed capacity.
3Area of stationary object
If the hydraulic regulation unit is integrated into the steering column, then space utilization is improved, but the risk of impact damage during collisions increases
Solution Approach 1:
The patent incorporates a cushioning mechanism that allows the hydraulic regulation unit to move or deform during impact events. The unit is designed with shock-absorbing features that activate during collisions to prevent direct impact damage to the integrated steering column components, thereby protecting the braking system during harmful events.
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 configuration improves depressurization efficiency by allowing simultaneous delivery of brake fluid through multiple pipes, reduces pipe complexity, and enriches the operating modes of the brake system, supporting a wider range of scenarios and redundancy performance.
Implementation Method 1
a first regulator configured to reduce the braking fluid pressure from the first master cylinder to a first reduced braking fluid pressure and a second regulator configured to reduce the braking fluid pressure from the second master cylinder to a second reduced braking fluid pressure
Implementation Method 2
Hydraulic regulation unit for braking system in automobile... first regulator configured to reduce the braking fluid pressure... second regulator configured to reduce the braking fluid pressure
Data Source
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AI summary
A hydraulic adjustment unit of a brake system in a vehicle includes a first fluid reservoir (29), a second fluid reservoir (2), a first oil return pipe (110), and a second oil return pipe (120). The first oil return pipe (110) is connected to wheel cylinders (151) and (152) of a vehicle, so that brake fluid in the wheel cylinders (151) and (152) of the vehicle is delivered to the first fluid reservoir (29), to depressurize wheels of the vehicle. The second oil return pipe (120) is configured to connect to the wheel cylinders (151) and (152) of the vehicle through oil inlet pipes (130) and (140) of a brake system, so that the brake fluid in the wheel cylinders (151) and (152) of the vehicle is delivered to the second fluid reservoir (2) through the oil inlet pipes (130) and (140) of the brake system, to depressurize the wheels of the vehicle. Therefore, depressurization efficiency of the brake system is improved. A brake system in a vehicle, a vehicle, and a control method are further provided.