Variable Energy Regeneration Control via Map and Sensor Data
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Solution Overview
Problem
Existing energy regeneration systems in electric vehicles rely solely on driver input for paddle shift operations, leading to manual control of regeneration stages, which can be inefficient and dependent on driver awareness during deceleration events.
Innovation Solution
An apparatus and method that utilize map information and sensors to automatically adjust energy regeneration stages based on deceleration events, such as approaching speed cameras or speed bumps, allowing for variable control of regenerative braking, thereby minimizing paddle shift, accelerator pedal sensor, and brake operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If energy regeneration control is based solely on driver input through paddle shift operations, then the system is simple to operate, but the regeneration stage cannot be automatically adjusted according to actual deceleration events
Solution Approach 1:
The system pre-stores multiple energy regeneration stages and their corresponding regenerative braking control parameters in advance. When a deceleration event is detected through sensor inputs (steering angle, brake pedal position, accelerator pedal position), the controller automatically selects and applies the appropriate pre-defined regeneration stage without requiring real-time complex calculations or driver intervention.
2Speed
If the system uses multiple sensor inputs and map information for automatic regeneration control, then the responsiveness to deceleration events is improved, but the device complexity increases
Solution Approach 1:
The controller continuously monitors multiple sensor inputs including steering angle sensor, brake pedal position sensor, and accelerator pedal position sensor to detect deceleration events. Based on this real-time feedback from various sensors and pre-stored map information, the system automatically adjusts the energy regeneration stage to match the actual driving conditions, ensuring rapid and accurate response to deceleration events.
3Reliability
If the regeneration stage is manually controlled by driver operation, then the system is easy to operate, but it depends on driver awareness during coasting
Solution Approach 1:
The system automatically detects deceleration events using sensor inputs and independently determines the appropriate energy regeneration stage without requiring driver awareness or manual intervention. The controller self-adjusts the regeneration control based on real-time sensor data and pre-stored map information, making the system self-sufficient and reliable regardless of driver attention or understanding of the regeneration process.
Data Source
AI summary
An apparatus for controlling energy regeneration variably capable of performing a variable control based on a deceleration event discrimination using a map information input as well as a driver's operation may include a controller configured to change a preset energy regeneration stage variably to a corresponding regenerative braking control by sensing an event for an energy regeneration stage and perform the corresponding regenerative braking control, and a generator configured to generate power according to the regenerative braking control.