E-bike Tracking Unit Antenna Integration

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Solution Overview

Problem

Existing tracking units for human-powered vehicles, such as bicycles, face challenges in terms of practical installation and aesthetic concerns, as well as the risk of tampering and power source reliability, particularly for vehicles without water bottle racks and due to the added weight and cost of dedicated batteries.

Innovation Solution

A tracking unit with an antenna integrated into or mounted on an electric gear shifter, utilizing a backup power source and motion detection for power conservation, and protected with protective materials, which also includes an expansion device for secure fastening within the vehicle frame, offering multiple placement options and enhanced security against tampering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the antenna is mounted on a water bottle rack, then the tracking unit can be installed, but not all vehicles have water bottle racks and it may not be practical for some bike types

Engineering Contradiction:
Improveinstallation compatibilityVSAvoidinstallation requirements
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by integrating the antenna into the electric gear shifter, which is a component present in all electric-assist bicycles regardless of frame type or accessories. This multi-functional integration allows the tracking system to be installed on any e-bike with an electric gear shifter, eliminating the limitation of water bottle rack dependency and achieving universal applicability across different bicycle types and frame configurations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If the tracking unit is placed outside the frame for easy access, then installation is simpler, but it becomes easier for thieves to disable or remove

Engineering Contradiction:
Improveinstallation easeVSAvoidanti-tampering capability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies the nested doll principle by placing the tracking unit inside the bicycle frame, nesting it within the existing structural cavity. The antenna is integrated into the gear shifter mechanism, nesting the tracking components within already-present vehicle parts. This nesting provides protection while maintaining accessibility during installation and service, as mechanics can still access the frame interior during normal maintenance.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent merges the tracking unit with the bicycle frame structure and integrates the antenna with the electric gear shifter. This combining of functions places the tracking system within the frame's protective enclosure while using the gear shifter as the antenna mounting point, achieving both security through integration and operational accessibility during normal bike maintenance.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a dedicated battery is used for the tracking unit, then power supply is reliable, but it adds weight and cost to the vehicle

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidvehicle weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent applies universality by having the electric gear shifter's battery serve multiple functions: powering both the gear shifting mechanism and the tracking unit. This multi-functional power supply eliminates the need for a separate dedicated battery, reducing overall weight and cost while maintaining reliable power supply to both systems through shared electrical infrastructure.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Reliability

If the antenna is placed in a standard location for easy detection, then signal reception is optimized, but it becomes easier for thieves to find and disable

Engineering Contradiction:
Improvesignal receptionVSAvoidtheft risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by placing the antenna at a specific location on the electric gear shifter that provides adequate signal reception while being unconventional for theft targets. The gear shifter area is not a typical focus for thieves compared to frame or component locations, creating a local quality difference in terms of security attention. The antenna position on the shifter body maintains sufficient exposure for GPS/GSM signal reception while camouflaging the tracking system's presence.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3393896B1Tracking unit for a human-powered vehicle
Publication Date: 2021.07.14 BIKEFINDER AS
  • EP3393896B1 patent drawingFigure 1

AI summary

Tracking unit (10) for a human-powered vehicle, the human-powered vehicle comprising a frame (100) and an electric gear shifter (20), the tracking unit comprising a tracker (1), such as a GPS and/or GSM unit, and an antenna (2) for allowing the tracker (1) to communicate, wherein said tracker (1) is adapted to be placed inside the frame (100) of a human-powered vehicle, and where- in said tracking unit (10) includes a wire (4) adapted to extend from the tracker (1), through a hole (6) in the frame (100), to the antenna (2) adapted to be mounted on the exterior of or at least par- tially integrated in the electric gear shifter (20).