Vehicle Brake Control Unit Base Body Miniaturization
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Solution Overview
Problem
The existing vehicle brake control units face challenges in miniaturization due to the large number of hydraulic pressure sensors required for implementing various brake controls, leading to increased size and limited installation options within vehicles.
Innovation Solution
A vehicle brake control unit base body design that integrates twelve electromagnetic valves and three hydraulic pressure sensors on one surface, utilizing specific mounting holes and flow paths to minimize size while maintaining complex safety functions, including independent anti-lock brake control and behavior stabilizing control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple hydraulic pressure sensors are provided in the base body to implement various brake controls, then the brake control functions are enhanced, but the base body size must be enlarged to accommodate the sensors
Solution Approach 1:
The patent positions sensors and valves on the front surface of the base body rather than distributing them throughout the volume, utilizing surface mounting to reduce the required base body volume while maintaining all necessary sensor and valve functions
Solution Approach 2:
The hydraulic pressure sensor is positioned to detect pressure in a location that serves multiple brake control functions (ABS, skid control, traction control), allowing one sensor to support multiple control systems rather than requiring separate sensors for each function
2Quantity of substance
If the vehicle brake control unit is enlarged to accommodate multiple sensors, then the sensor mounting space is sufficient, but the installation space in the vehicle becomes limited
Solution Approach 1:
The patent transitions from a volume-distributed sensor arrangement to a surface-mounted arrangement on the front surface of the base body, reducing the control unit's overall volume while maintaining the capacity to mount all necessary sensors and valves
Solution Approach 2:
The patent combines the mounting of multiple sensors and valves on a single surface (the front surface of the base body), integrating multiple components into a compact arrangement that reduces the total control unit volume
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 design allows for a compact vehicle brake control unit that implements multiple complex and accurate safety functions, enhancing brake hydraulic pressure control and reducing the unit's size and weight, while ensuring precise brake control, particularly for front and rear wheels.
Implementation Method 1
In each brake output circuit, a set of two electromagnetic valves (an inlet valve, an outlet valve) is provided for each control valve unit
Data Source
AI summary
A base body has flow path configuring portions, has inlet and outlet ports, a central mounting hole 31, a central flow path 51 penetrating the central mounting hole 31, first inner and outer mounting holes 32, 33 disposed upstream side of the central mounting hole 31, second inner and outer mounting holes 34, 35 disposed downstream side of the central mounting hole 31, a third mounting hole 36 disposed below the second outer mounting hole 35, a wheel side sensor mounting hole 46 disposed on an extension of the outlet port 22L between the first inner mounting hole 32 and the second inner mounting hole 34, and a hydraulic pressure source side sensor mounting hole 45 disposed on a center line X of the base body so as to straddle to extend to the flow path configuring portions across the center line X.