Throttle Assembly With Bidirectional Regen Braking Control
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Solution Overview
Problem
Existing regenerative braking systems in vehicles lack rider control and feedback, leading to unpleasant driving experiences, vehicle instability, and safety issues due to pre-programmed braking, which can cause confusion and harshness feelings, especially in varying driving conditions.
Innovation Solution
A throttle assembly with user-controlled regenerative braking modes, allowing riders to adjust braking intensity through clockwise and anticlockwise rotations, featuring a bidirectional torsional spring and slot mechanism for intuitive control, applicable to both cable and sensor-based variants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If pre-programmed regenerative braking is implemented, then energy recovery is achieved, but rider control and feedback are lost leading to vehicle instability and safety issues
Solution Approach 1:
The patent introduces a feedback mechanism where the rider can sense the regenerative braking force through the throttle grip and provide intuitive feedback by rotating the throttle in clockwise or anticlockwise directions. This allows the rider to control the intensity of regenerative braking while maintaining energy recovery, thus resolving the contradiction between energy recovery and rider control.
Solution Approach 2:
The system dynamically adjusts the regenerative braking intensity based on rider input through throttle rotation direction and magnitude. The braking force is not fixed but varies according to rider commands, enabling both energy recovery and adaptive rider control across different driving conditions.
2Loss of energy
If pre-programmed regenerative braking is used, then energy recovery occurs, but rider feedback is absent causing confusion and harshness feelings
Solution Approach 1:
The patent implements a dual feedback system: mechanical feedback through the torsional spring that provides tactile sensation to the rider, and electronic feedback through the controller that adjusts regenerative braking based on throttle position. This ensures the rider receives continuous information about system state and maintains intuitive control, preventing confusion and harshness while preserving energy recovery.
3Ease of manufacture
If conventional braking systems are used, then kinetic energy is converted to heat, but energy is wasted as heat dissipated to atmosphere
Solution Approach 1:
The patent replaces the purely mechanical conventional braking system with an electro-mechanical regenerative braking system. The mechanical brake is supplemented by an electrical braking mechanism that converts kinetic energy to electrical energy through the motor acting as a generator, thereby reducing energy waste while maintaining braking functionality.
Solution Approach 2:
The patent converts the harmful effect of kinetic energy loss during braking into a beneficial outcome by using the motor to generate electrical energy from the vehicle's momentum. This transforms wasted energy into stored electrical energy that can be used later, maintaining braking effectiveness while eliminating energy waste.
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
Enhances rider control and stability by providing intuitive regenerative braking, reducing fatigue and improving drive feel, while minimizing constructional modifications for easy retrofitting.
Implementation Method 1
featuring a bidirectional torsional spring and slot mechanism for intuitive control
Data Source
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AI summary
The present invention relates to a throttle assembly (202) of a motorized vehicle (100) comprising a slot (502), a torsional spring (503) and a stopper ring (504), wherein the stopper (504a) of the stopper ring (504) is relieved in a second region (Y). A throttle assembly (202) of a vehicle (100) is capable of being rotated in both clockwise and anti-clock wise direction to achieve one or more three throttle assembly states, viz, a first state (A), or a state (B), and a third state (C). Resultant to which a user-controlled regenerative mode is achieved upon rotating the throttle assembly (202) in a clockwise direction when viewed from the outward end (202a), from the first state (A) to the third state (C).