Hydraulic Block for Electronic Braking Redundancy
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Solution Overview
Problem
Conventional electronic brake systems lack a redundant device to ensure stability in autonomous driving, as they do not have a replacement for the electronic brake part in case of a breakdown, limiting the stability of autonomous driving operations.
Innovation Solution
A hydraulic block for an electronic braking device is designed as an auxiliary braking system that can take over the braking function in case of a main braking device failure, featuring a block body with a controller and motor mounting parts, input and output ports, and a hydraulic circuit with valves, allowing efficient installation in limited space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an auxiliary braking device is added to provide redundancy, then reliability is improved, but device complexity increases
Solution Approach 1:
The auxiliary braking device merges the motor, controller, and hydraulic circuit into a single integrated hydraulic block. The motor mounting part and controller mounting part are combined in one block body, with the hydraulic circuit part formed directly within the block body, creating a compact unified structure that provides redundancy without proportionally increasing overall system complexity
Solution Approach 2:
The hydraulic block serves multiple functions: it houses the motor for generating hydraulic pressure, contains the controller for managing braking operations, incorporates the hydraulic circuit for pressure regulation, and provides mounting surfaces for both motor and controller. This multi-functionality allows one component to replace what would traditionally require multiple separate devices
2Volume of moving object
If the hydraulic block is designed with compact layout, then space utilization is improved, but manufacturing precision requirements increase
Solution Approach 1:
Multiple functional elements (motor housing, controller mounting structure, hydraulic circuit channels, and port features) are merged into a single hydraulic block body. The input port part and output port part are both formed directly on the block body with precise positioning relative to each other and to the mounting surfaces, eliminating the need for separate components and reducing assembly tolerances
Solution Approach 2:
The block body is designed with different surface characteristics for different functions: the front and rear surfaces provide mounting surfaces for motor and controller with specific flatness requirements, while the top surface contains the input and output ports with precise positioning. Each local area is optimized for its specific function, allowing compact design while maintaining necessary precision
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 hydraulic block enables redundancy in vehicle braking, ensuring continuous braking functionality even if the main braking device fails, thereby enhancing the stability of autonomous driving by minimizing space requirements and maintaining braking performance.
Implementation Method 1
a hydraulic circuit part formed in the block body so as to extend from the input port part to the output port part
Data Source
AI summary
A hydraulic block of an electronic braking device for a vehicle may include: a block body; an input port part disposed on the block body, and connected to an output line of a main braking device to brake a vehicle using hydraulic pressure; an output port part connected to a hydraulic brake line for individually adjusting one or more wheels; and a hydraulic circuit part formed in the block body so as to extend from the input port part to the output port part, and configured to control hydraulic pressure for redundancy of vehicle braking.