Vehicle Speed Sensor Jumper Connector Frequency Adjustment
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Solution Overview
Problem
Existing vehicle speed measurement systems face challenges in accurately adjusting pulse output to account for varying vehicle types and gear ratios, leading to increased design, assembly, and maintenance costs due to the need for precise adjustments in gear ratios.
Innovation Solution
A speed measure system incorporating a drive shaft, drive gear, driven shaft, speed sensor, and jumper connector that transforms the frequency of the rotation signal output from the speed sensor by a predetermined ratio, allowing for easy adjustment of pulse output without changing the gear ratio of the driven and drive shafts, using a worm gear and worm wheel gear structure with a jumper connector that adjusts pulse signals through terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gear ratio is adjusted to accommodate different vehicle types and specifications, then speed measurement accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent changes the electrical parameter (pulse frequency ratio) instead of mechanical parameters (gear ratios). The jumper connector allows selecting different pulse frequency ratios electronically to match different vehicle types and rear axle ratios, eliminating the need for mechanical gear ratio adjustments while maintaining speed measurement accuracy.
Solution Approach 2:
The patent replaces the mechanical gear ratio adjustment system with an electronic pulse frequency transformation system. Instead of physically changing gear ratios to adapt to different vehicles, the system uses a speed sensor and jumper connector to transform pulse frequencies electronically, simplifying the overall system while maintaining measurement precision.
2Adaptability or versatility
If multiple gear ratios are used to adjust speed ratio for different vehicles, then adaptability is improved, but manufacturing and assembly cost increase
Solution Approach 1:
The patent creates a universal speed measurement system that can adapt to different vehicle types through electronic configuration rather than mechanical variation. The jumper connector with multiple terminal options allows a single standardized sensor assembly to serve multiple vehicle applications by simply changing the electrical connection configuration, not the physical components.
Solution Approach 2:
The system achieves versatility by changing electrical parameters (pulse frequency ratios) rather than mechanical parameters (gear ratios). Different vehicle types are accommodated by selecting different jumper connector terminals that correspond to different pulse frequency transformation ratios, eliminating the need for multiple specialized gear sets.
3Measurement precision
If gear ratio is precisely adjusted for each vehicle type, then speed measurement accuracy is improved, but maintenance cost and time increase
Solution Approach 1:
The patent enables easy reconfiguration of speed measurement parameters by simply changing jumper connector terminals rather than adjusting mechanical gear ratios. This electrical parameter change is much simpler and faster than mechanical adjustment, reducing maintenance time and complexity while maintaining measurement accuracy.
Solution Approach 2:
The patent replaces complex mechanical gear ratio adjustment and maintenance with simple electrical terminal switching. When adaptation to different vehicles or corrections are needed, maintenance personnel only need to reconfigure the jumper connector electronically, eliminating the need for disassembling and adjusting mechanical gear systems.
Data Source
AI summary
A speed measure system of a vehicle may include a drive shaft that rotates according to movement of a vehicle and a drive gear is formed along the outside thereof; a driven shaft to which a driven gear is formed, wherein the driven gear is engaged with the drive gear; a speed sensor that is disposed on the driven shaft and outputs a rotation signal according to the rotation of the driven shaft; and a jumper connector that is disposed on the speed sensor and transforms the frequency of the rotation signal output from the speed sensor with a predetermined ratio.