Regenerative Braking Control via Object and Speed Parameters
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Solution Overview
Problem
Regenerative braking systems in vehicles often activate unnecessarily, leading to energy consumption and discomfort due to inappropriate triggering based on accelerator and brake pedal states, without considering driving conditions and external objects.
Innovation Solution
A regenerative braking control apparatus that uses driving information and object information to determine whether to perform regenerative braking, controlling the start and end times, locations, and degree of braking, and adapting based on vehicle speed, route, location, and external objects to optimize energy efficiency and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If regenerative braking is activated based on accelerator and brake pedal states, then energy recovery is achieved, but unnecessary activation occurs leading to energy consumption and discomfort
Solution Approach 1:
The system changes the control parameters from simple pedal state detection to multi-dimensional parameters including vehicle speed, acceleration, deceleration rate, and distance to stop line. This allows the regenerative braking to be activated only when parameters indicate appropriate conditions, avoiding unnecessary activation that causes discomfort while maintaining energy recovery efficiency.
Solution Approach 2:
The system continuously monitors multiple parameters (vehicle speed, acceleration, deceleration, distance to stop line) and uses feedback control to determine whether to activate regenerative braking. The control apparatus adjusts braking activation based on real-time feedback from these parameters, preventing unnecessary activation that would cause rider discomfort while maximizing energy recovery when conditions are appropriate.
2Force
If regenerative braking is activated based on pedal states, then braking force is generated, but unexpected slowing occurs without considering driving conditions
Solution Approach 1:
The system changes from simple pedal-state-based braking activation to a multi-parameter decision system that considers vehicle speed, acceleration, deceleration rate, and distance to stop line. This ensures braking force is applied only when parameters indicate appropriate conditions, making the braking behavior predictable and reliable rather than unexpected.
Solution Approach 2:
The system performs preliminary assessment of multiple parameters (vehicle speed, acceleration, deceleration, distance to stop line) before activating regenerative braking. This preliminary action ensures that braking force is applied only when conditions are appropriate, preventing unexpected slowing and making the braking behavior predictable and reliable.
3Loss of energy
If regenerative braking is activated without considering external objects, then energy recovery is maximized, but safety is compromised due to inappropriate triggering
Solution Approach 1:
The system incorporates distance to stop line and detected object information as additional parameters for deciding regenerative braking activation. This ensures that energy recovery is maximized only when it is safe to do so, preventing inappropriate triggering that would compromise safety while maintaining efficient energy recovery when conditions are appropriate.
4Ease of operation
If regenerative braking control considers multiple parameters (speed, route, location, objects), then unnecessary activation is reduced, but system complexity increases
Solution Approach 1:
The control apparatus is designed as a multi-functional system that simultaneously processes vehicle speed, acceleration, deceleration, route information, stop line detection, and object detection data. By consolidating these functions into a single control unit, the system achieves high-level decision-making capabilities without proportionally increasing overall system complexity.
Data Source
AI summary
A regenerative braking control apparatus includes an interface unit configured to receive driving information of a vehicle; an object detection device configured to generate object information based on detecting an object outside the vehicle; and at least one processor. The at least one processor is configured to: determine whether to perform regenerative braking for the vehicle, based on the driving information and the object information; and provide at least one signal corresponding to a result of determining whether to perform the regenerative braking for the vehicle.