Regenerative Braking Optimal Point Calculation
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Solution Overview
Problem
Hybrid and electric vehicles face inefficiencies in regenerative braking systems, as existing technologies do not effectively determine the optimal braking point to maximize energy recovery without engaging physical brakes, leading to potential kinetic energy wastage.
Innovation Solution
A regenerative braking system equipped with sensors and an electronic control unit processes information about target objects and vehicle velocity to determine the maximum deceleration achievable through regenerative braking, calculating an optimal braking point to slow the vehicle without using physical brakes, thereby maximizing energy recovery and extending driving range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If regenerative braking is used to maximize energy recovery, then fuel consumption is reduced, but the vehicle may not be able to stop in time without physical brakes
Solution Approach 1:
The system performs preliminary calculations to determine the optimal braking point before actual braking is needed. By computing the maximum deceleration capability of the regenerative braking system in advance and using sensor data about target objects, the system can proactively initiate regenerative braking at the optimal moment, ensuring both maximum energy recovery and reliable stopping before the target object.
2Loss of energy
If the optimal braking point is calculated to maximize regenerative braking, then energy recovery is improved, but the system complexity increases
Solution Approach 1:
The system replaces complex mechanical braking control with electronic computation and sensor-based detection. By using sensors to detect target objects and an electronic control unit to calculate the optimal braking point, the system achieves precise energy optimization through software algorithms rather than complex mechanical linkages, reducing overall system complexity while improving energy recovery efficiency.
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 system enables efficient energy recovery and fuel savings by determining the optimal regenerative braking point, reducing the need for physical braking and enhancing the driving range of hybrid and electric vehicles.
Implementation Method 1
regenerative brakes that act as an energy recovery mechanism that slows the vehicle by converting its kinetic energy into another form
Data Source
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AI summary
A regenerative braking system for a vehicle. The system includes at least one detecting device or sensor, and an electronic control unit having a processor and a computer readable medium. The at least one sensor detects information about at least one target object located ahead of the vehicle. The electronic control unit receives information about the target object. The electronic control unit also receives information about a velocity of the vehicle, determines a velocity of the target object based on the information from the sensor, determines a maximum deceleration of the vehicle that can be reached by the regenerative braking system without applying physical brakes of the vehicle, and determines an optimal braking point to begin maximum regenerative braking. The optimal braking point is a point at which maximum regenerative braking can sufficiently slow the vehicle before reaching the target object without applying the physical brakes of the vehicle.