Electric Bicycle Immobilizer Key Code Authentication
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Solution Overview
Problem
Electric bicycles, particularly pedelecs and e-bikes, face significant theft risks due to expensive components like batteries, and existing anti-theft solutions are either cumbersome or ineffective.
Innovation Solution
An immobilizer system comprising three control devices (one for the electric motor, one for the energy store, and one for the display/operating unit) that communicate via a data transmission system, exchanging and verifying key codes to ensure only authorized combinations of components can operate the bicycle, thereby preventing theft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mechanical locks are used for anti-theft protection, then the bicycle can be secured, but the lock is heavy and expensive to carry separately
Solution Approach 1:
The patent replaces the mechanical lock system with an electronic immobilizer system that uses control devices, key codes, and electronic signals to prevent theft. The immobilizer integrates electronic control units that communicate via data transmission systems to authenticate and enable/disable bicycle functions, eliminating the need for physical locks.
2Reliability
If mechanical locks are used for anti-theft protection, then the bicycle can be secured, but mechanical locks can be opened by force within a certain period of time
Solution Approach 1:
The patent replaces the mechanical lock system with an electronic immobilizer system that uses control devices, key codes, and electronic signals to prevent theft. The immobilizer integrates electronic control units that communicate via data transmission systems to authenticate and enable/disable bicycle functions, eliminating the need for physical locks.
3Ease of operation
If expensive components like batteries are made detachable for convenience, then the bicycle is easier to operate, but the components become more vulnerable to theft
Solution Approach 1:
The patent replaces mechanical locking mechanisms with an electronic immobilizer system that uses control devices and key code verification. When components like batteries are detached, the immobilizer system detects the change and requires authentication through key code matching between the control devices, preventing unauthorized use of detached components.
Solution Approach 2:
The immobilizer system continuously monitors the status of bicycle components and their associated control devices. When a component is detached or removed, the system receives feedback about the change in configuration and responds by requiring key code authentication before allowing the component to function, creating a closed-loop security system.
Data Source
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AI summary
The invention relates to an electric bicycle 1 preferably a pedelec or e-bike, comprising an electric motor and an electric energy store, preferably an accumulator, for supplying energy to the electric motor. The aim of the invention is to advantageously develop the electric bicycle. According to the invention, this is achieved in that the electric bicycle 1 has a first controller 1 which is coupled to the electric motor 2 and is designed to store a first keycode; the electric bicycle 1 has a second controller 12 which is coupled to the energy store 3 and is designed to store a second keycode; the controllers 11, 12 are connected or can be connected to a data transmission system 22, which is implemented in particular by means of a bus; and the first controller 11 and the second controller 12 are designed such that at least one specified controller of the controllers 11, 12 receives the keycode of the other controller 11, 12 from same. The at least one specified controller 11, 12 is designed to determine whether its keycode matches the received keycode of the other controller 11, 12 using specified criteria. The invention also relates to an immobilizer for an electric bicycle, having a single or a plurality of the aforementioned features. The invention also relates to a method for operating an electric bicycle.