Dual Channel Pressure Sensor for Hydraulic Steering
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Solution Overview
Problem
Current hydraulic steering systems require two separate pressure sensors and wiring harnesses to monitor opposing ends of a hydraulic piston, leading to space limitations, increased costs, and durability concerns due to additional sealing locations.
Innovation Solution
A dual channel pressure sensor design that integrates two pressure sensing channels into a single housing with a baseplate and electrical connector, allowing for monitoring of both ends of the hydraulic piston with a single sensor and reduced wiring, and utilizing a retainer plate or threaded connection for secure mounting, which simplifies machining and reduces stress on internal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate pressure sensors are used to monitor opposing ends of the hydraulic piston, then pressure monitoring capability is achieved, but space requirements increase and device complexity increases
Solution Approach 1:
The patent combines two separate pressure sensing functions into a single dual-channel pressure sensor. The sensor housing contains two independent pressure chambers that can simultaneously monitor pressure on both ends of the hydraulic piston, eliminating the need for two separate sensors and their associated wiring harnesses.
Solution Approach 2:
The single pressure sensor is designed with multi-functionality to perform the work of two separate sensors. It includes two pressure inlet ports and internal channeling that allows it to independently measure pressure differential across the hydraulic piston, providing universal pressure monitoring capability in one device.
2Reliability
If two separate pressure sensors are used, then pressure monitoring is achieved, but space consumption increases
Solution Approach 1:
The patent merges two separate pressure sensor units into one compact dual-channel sensor. This consolidation reduces the total space required in the hydraulic steering system by eliminating duplicate sensor housings, mounting locations, and wiring paths, while maintaining the ability to monitor both pressure channels simultaneously.
3Reliability
If multiple pressure sensors are used, then pressure monitoring coverage is improved, but manufacturing cost increases
Solution Approach 1:
The invention consolidates the function of two separate pressure sensors into a single manufactured unit. This reduces manufacturing costs by eliminating duplicate production of sensor housings, seals, and electronic components, while also reducing system assembly complexity and the number of sealing locations that require precision manufacturing.
4Reliability
If two separate pressure sensors with two wiring harnesses are used, then complete pressure monitoring is achieved, but device complexity increases
Solution Approach 1:
The dual-channel pressure sensor integrates both pressure sensing functions into one device with a single wiring harness. This eliminates the complexity of installing and managing two separate wiring harnesses, reducing the number of electrical connections and simplifying the overall system architecture while maintaining complete pressure monitoring capability.
Data Source
AI summary
A dual channel pressure sensor is provided. The pressure sensor includes a baseplate extending from a housing. The baseplate has a first end, a second end, and a body extending between the first end and the second end. The first end defining a first inlet port and the body defining a second inlet port.