Hydraulic Traction Control Assembly with Segmented Control Units
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Solution Overview
Problem
Conventional traction control systems for hydraulic vehicle brake systems face challenges with complex cabling and thermal management due to the single control unit arrangement, leading to increased power losses and space requirements.
Innovation Solution
The hydraulic assembly separates the control apparatus into two spatially distinct units, with a first unit for signal components and a second unit for power components, allowing for short cabling and efficient cooling, and integrating power components directly with the hydraulic block for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single control unit is used in conventional traction control systems, then the control structure is simpler, but the cabling becomes complex and power losses increase
Solution Approach 1:
The control apparatus is divided into two spatially separate control units: a first control unit containing signal components and a second control unit containing power components. This segmentation allows power components to be positioned close to the electric motor, significantly reducing cable length and associated power losses, while signal components remain accessible for control functions.
2Device complexity
If power components are arranged separately from the hydraulic block, then the control layout is more flexible, but thermal management becomes less efficient
Solution Approach 1:
Power components are segregated into a dedicated second control unit that can be thermally coupled to the hydraulic block, while other components remain in the first control unit. This allows optimized thermal management for high-power components without constraining the overall control layout.
Solution Approach 2:
The hydraulic block serves as a thermal intermediary, absorbing heat from power components through direct thermal coupling. The hydraulic fluid circulating through the block acts as a heat transfer medium, efficiently removing thermal energy from power components.
3Loss of energy
If cable length between control unit and motor block is reduced, then power losses decrease, but the control unit arrangement becomes more constrained
Solution Approach 1:
By splitting the control apparatus into two units with distinct functional responsibilities, the power components can be positioned immediately adjacent to the motor block, minimizing cable length and power losses. The signal components are housed in a separate, more accessible location.
4Volume of moving object
If a compact design is implemented, then installation space is reduced, but thermal dissipation becomes more difficult
Solution Approach 1:
The second control unit containing power components is integrated with or thermally coupled to the hydraulic block, combining thermal management functions. The hydraulic block's mass and fluid circulation provide effective heat dissipation within a compact overall volume.
Solution Approach 2:
The hydraulic block and circulating fluid serve as thermal intermediaries, enabling efficient heat dissipation from power components without requiring additional cooling systems or increasing the overall installation 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
This configuration reduces power losses, optimizes circuit board layout, and minimizes installation space while enabling a compact, cost-effective design with improved thermal management and reduced cabling complexity.
Implementation Method 1
Cooling is possible in particular both via the hydraulic block and the hydraulic fluid flowing through there
Implementation Method 2
Cooling is possible in particular both via the hydraulic block and the hydraulic fluid flowing through there
Implementation Method 3
Cooling is possible in particular both via the hydraulic block and the hydraulic fluid flowing through there as well as via the comparatively large surface of the motor block
Data Source
AI summary
A hydraulic assembly of a traction control system of a hydraulic vehicle brake system includes a hydraulic block, a motor block, and a control device. The hydraulic block includes at least one electric hydraulic valve and at least one electric hydraulic pump arranged therein. The motor block includes an electric motor arranged therein. The electric motor is configured to drive the at least one hydraulic pump. The control device is configured to control the at least one hydraulic valve, the at least one hydraulic pump, and the electric motor. The control device has two structurally separate control units, which include a first control unit with signal components and a second control unit with power components.