Anti-roll Device Single Valve Fluid Control
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Solution Overview
Problem
Existing anti-roll devices in vehicles require multiple electrically-operated valves, increasing complexity, size, electricity consumption, and production costs, while also complicating installation and increasing the risk of failure or malfunction.
Innovation Solution
An anti-roll device with a single electrically-operated valve, non-return means, and a fluid reservoir, which reduces the complexity and size by using a housing and piston to control fluid flow through a chamber with varying volumes, allowing for adjustable connecting rod lengths and simplified command algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple electrically-operated valves are used in the anti-roll device, then the control functionality is improved, but the device complexity and size increase
Solution Approach 1:
The patent merges the functions of multiple electrically-operated valves into a single electrically-operated valve that controls a common fluid reservoir. This single valve regulates hydraulic fluid flow to multiple cylinders, eliminating the need for separate valves at each wheel assembly while maintaining the ability to independently control each wheel's anti-roll action through selective fluid distribution.
Solution Approach 2:
The single electrically-operated valve is designed to perform multiple functions simultaneously - it controls fluid pressure to different cylinders based on which wheels need anti-roll stabilization. The valve can direct fluid to any combination of wheels, making it a universal control component that replaces multiple specialized valves.
2Adaptability or versatility
If multiple electrically-operated valves are used in the anti-roll device, then the control functionality is improved, but the electricity consumption increases
Solution Approach 1:
The patent combines multiple valve control circuits into a single electrically-operated valve controlled by a centralized control unit. This eliminates redundant electrical systems and reduces overall electricity consumption while maintaining the capability to control each wheel assembly independently through intelligent fluid distribution.
3Adaptability or versatility
If multiple electrically-operated valves are used in the anti-roll device, then the control functionality is improved, but the risk of failure or malfunction increases
Solution Approach 1:
The patent reduces the number of potential failure points by consolidating multiple electrically-operated valves into a single valve. This single valve is controlled by a centralized control unit that can manage fluid distribution to multiple cylinders, thereby reducing the overall risk of failure or malfunction while maintaining full control functionality.
4Adaptability or versatility
If multiple electrically-operated valves are used in the anti-roll device, then the control functionality is improved, but the production and installation costs increase
Solution Approach 1:
The patent simplifies manufacturing and installation by using a single electrically-operated valve instead of multiple valves. This reduces the complexity of wiring harnesses, decreases the number of components that need to be installed and calibrated, and lowers overall production and installation costs while maintaining the ability to control each wheel assembly independently.
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 design reduces the complexity, size, and electricity consumption of the anti-roll device, simplifies installation, and decreases the risk of failure or malfunction by utilizing a single electrically-operated valve per wheel assembly.
Implementation Method 1
a housing defining a chamber subdivided into first and second parts defining volumes that can be varied by a piston
Implementation Method 2
first and second non-return means each coupled to one of the first and second outlets-inlets and to the conduit
Data Source
AI summary
An anti-roll device equips an axle assembly of a motor vehicle and comprises two connecting rods of which one comprises a part of coupling means comprising: a housing subdivided into two parts by a piston and comprising two inlets-outlets communicating with the two parts and an intermediate inlet-outlet communicating with at least one of the parts depending on the position of the piston, a fluid reservoir supplying a conduit coupled to the intermediate inlet-outlet, two non-return means coupled to the inlets-outlets and to the conduit, and an electrically operated valve coupled to the inlets-outlets and placed either in an open state ensuring a connection between the parts and the fluid reservoir via the intermediate inlet-outlet, or in a closed state allowing fluid discharge out of the housing only through the intermediate inlet-outlet.