Braking Device with Hall Sensor for Dynamic Force Control
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Solution Overview
Problem
Conventional electric car braking systems provide weak braking strength due to a simple signal from the braking crank, leading to long braking distances and potential safety hazards, as they rely on a mechanical structure and constant electronic braking force, which is insufficient.
Innovation Solution
A braking device with a braking crank case, a Hall element, and a magnet that detects the braking strength through the magnetic field's change, generating a signal to control the motor's braking force, allowing for variable electronic braking based on the handle's movement, enhancing braking precision and force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple mechanical braking structure is used, then the device complexity is reduced, but the braking strength becomes weak leading to long braking distances
Solution Approach 1:
The patent combines mechanical braking structure with electronic braking system into a hybrid braking system. The mechanical brake provides structural simplicity while the electronic brake (motor acting as generator) provides enhanced braking force, resolving the contradiction between device complexity and braking strength.
Solution Approach 2:
The patent replaces part of the mechanical braking system with an electronic braking mechanism where the motor acts as a generator during braking. This substitution provides stronger and more controllable braking force without significantly increasing overall system complexity.
2Device complexity
If a constant electronic braking force is applied, then the control system is simplified, but the braking precision is reduced
Solution Approach 1:
The patent implements dynamic braking force adjustment based on handle displacement. The electronic braking force varies continuously as the handle is pressed, providing precise braking control. This dynamic adjustment is achieved through simple sensor feedback and controller logic, maintaining control system simplicity while improving braking precision.
Solution Approach 2:
The patent incorporates feedback from handle displacement detection to control the electronic braking force. The sensor detects handle position and the controller adjusts braking force accordingly, creating a closed-loop control system that improves braking precision without significant complexity increase.
3Use of energy by moving object
If only mechanical braking is used, then the energy consumption is reduced, but the braking distance increases
Solution Approach 1:
The patent converts the kinetic energy that would be wasted as heat in mechanical braking into useful electrical energy. The motor acts as a generator during braking, converting mechanical energy to electrical energy to charge the battery, thus reducing energy loss and improving braking efficiency simultaneously.
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
The solution provides a continuous increasing electronic braking force, improving braking precision and user experience by dynamically adjusting the braking strength based on the handle's displacement, thereby reducing braking distances and enhancing safety.
Implementation Method 1
a Hall element and a magnet that detects the braking strength through the magnetic field's change
Data Source
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AI summary
A control method, a mobile apparatus, a brake lever device and a braking device. The mobile apparatus comprises a first brake component (71) and a second brake component (72). The control method comprises: obtaining a first operation, and determining a braking strategy according to the first operation; determining, according to the braking strategy, a first parameter corresponding to the first brake component (71) and a second parameter corresponding to the second brake component (72); controlling the first brake component (71) according to the first parameter to perform, with the mobile apparatus, a first braking procedure; generating a control signal corresponding to the second parameter, and controlling the second brake component (72) according to the control signal to perform, with the mobile apparatus, a second braking procedure. The brake lever device comprises: a brake lever hood (11), a brake lever (12) mounted on the brake lever hood (11), and a brake force detection device (13) disposed in the brake lever hood (11). The brake force detection device (13) generates a corresponding braking intensity signal with respect to the distance moved by the brake lever (12) during braking. The braking intensity signal generates an electronic braking force corresponding to the distance moved by the brake lever (12). The brake lever device enhances braking effectiveness and braking precision.