Micromobility Powertrain Braking With Integrated Motor Control
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Solution Overview
Problem
Current micro-mobility fleet vehicles, such as stand-scooters and bicycles, have inefficient powertrains that rely on user input or external systems for braking and traction control, leading to reduced performance and increased costs.
Innovation Solution
A powertrain configuration for micro-mobility fleet vehicles that includes an electric motor, a brake resistor, and a motor controller, which dynamically controls speed, power, and acceleration based on operational environments and directives, providing a wide range of traction control and braking features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional braking systems and external control systems are used, then braking function is provided, but system complexity and cost increase
Solution Approach 1:
The patent combines the braking function with the existing motor controller and powertrain system. The motor controller is configured to control both motor operation and brake resistor activation, merging two previously separate functions (motor control and braking) into a single integrated system, thereby reducing overall system complexity while maintaining reliable braking performance
Solution Approach 2:
The motor controller is designed to perform multiple functions: it controls motor operation for propulsion and simultaneously controls the brake resistor for braking. This multi-functional design eliminates the need for separate dedicated braking control systems, reducing complexity while ensuring reliable braking through a unified control architecture
2Reliability
If user input or external systems are used for braking control, then braking function is provided, but performance is reduced
Solution Approach 1:
The powertrain system performs braking control automatically through its own integrated control system without requiring external intervention or separate braking systems. The motor controller autonomously manages motor operation and brake resistor activation based on vehicle conditions, enabling the system to serve its own braking needs efficiently while maintaining high performance
3Reliability
If traditional braking systems are used, then braking function is provided, but costs increase
Solution Approach 1:
The patent merges the braking control function into the existing motor controller, eliminating the need for separate dedicated braking control hardware. This integration reduces component count and assembly requirements, lowering manufacturing costs while maintaining effective braking through the unified control system
Solution Approach 2:
The motor controller is designed as a multi-functional device that handles both motor propulsion control and braking control through the brake resistor. This universal design approach reduces the total number of control systems needed, simplifying manufacturing and reducing overall system cost while ensuring reliable braking performance
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
This configuration enhances user experience by improving traction control and braking efficiency, reducing costs associated with traditional braking systems, and enabling adaptive performance based on environmental conditions and user directives.
Implementation Method 1
a brake resistor configured to provide dynamic braking of the motor
Data Source
AI summary
A method implemented by one or more processors includes receiving vehicle data associated with an operation of a micromobility vehicle, and determining, based on the vehicle data, a braking action to be performed by the micromobility vehicle. The braking action is configured to effect the operation of the micromobility vehicle. The method further includes identifying, based at least in part on one or more components of a powertrain of the micromobility vehicle, one or more authentication identifiers associated with a secured functionality of the one or more components of the powertrain, and in response to determining that the one or more authentication identifiers satisfies a predetermined condition, causing the micromobility vehicle to perform the braking action.