Battery Pack Data Control for Electric Gas Engine Replacement
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Solution Overview
Problem
Gas engines in outdoor power equipment produce emissions and are not adaptable for optimal performance, while battery-powered gas engine replacement devices have limited runtime due to lower energy density compared to gasoline engines.
Innovation Solution
A gas-engine replacement device powered by a lithium-ion battery pack includes a housing, a battery receptacle, a motor, a power switching network, and electronic processors that control the motor based on battery pack configuration data, optimizing power distribution and monitoring battery conditions to extend runtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If battery packs with higher capacity are used to extend runtime, then duration of action is improved, but weight and volume of the device increase
Solution Approach 1:
The system dynamically adjusts motor power consumption based on real-time battery state parameters (temperature, voltage, current, charge level) received from the battery pack. The electronic processor modifies motor control parameters to optimize power draw, extending runtime without requiring additional battery capacity or weight.
Solution Approach 2:
The system changes operational parameters by reading battery pack configuration data including maximum discharge current, cell chemistry type, and temperature thresholds. These parameter changes enable the motor controller to adapt power consumption to the specific battery pack installed, maximizing runtime within the constraints of the available energy density.
2Duration of action of moving object
If battery packs with higher capacity are used to extend runtime, then duration of action is improved, but device complexity increases
Solution Approach 1:
The battery pack includes an integrated circuit that continuously monitors battery state parameters (temperature, voltage, current, charge level) and provides real-time feedback to the electronic processor. This feedback loop enables the system to dynamically adjust motor power consumption to extend runtime without requiring complex external monitoring systems.
Solution Approach 2:
The electronic processor performs multiple functions: it controls motor operation, processes battery pack configuration data, monitors battery state parameters, and adjusts power consumption dynamically. This multi-functionality consolidates control logic into a single component, extending runtime capabilities without proportionally increasing overall system complexity.
3Power
If the motor is controlled to maximize power output, then power is improved, but duration of action decreases due to higher energy consumption
Solution Approach 1:
The system dynamically adjusts motor power output based on real-time battery state parameters. The electronic processor modifies motor control parameters to optimize the balance between power delivery and energy conservation, enabling variable power output that extends runtime while maintaining adequate performance.
Solution Approach 2:
The system changes motor operational parameters based on battery pack configuration data and real-time state monitoring. By adjusting current draw, voltage levels, and duty cycle parameters, the system optimizes the relationship between power output and energy consumption to maximize runtime.
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 solution provides improved runtime and performance by optimizing power distribution and monitoring battery conditions, enhancing the efficiency and adaptability of battery-powered gas engine replacement devices.
Implementation Method 1
a battery pack having a memory storing battery pack configuration data
Implementation Method 2
a motor located within the housing, a power take-off shaft receiving torque from the motor
Data Source
AI summary
A gas engine replacement device includes a housing, a battery receptacle coupled to the housing and configured to removably connect to a battery pack having a memory storing battery pack configuration data, a motor located within the housing, a power take-off shaft receiving torque from the motor and protruding from a side of the housing, a power switching network configured to selectively provide power from the battery pack to the motor, and a first electronic processor coupled to the power switching network and configured to control the power switching network to rotate the motor. The first electronic processor is configured to receive the battery pack configuration data responsive to a connection of the battery pack to the battery receptacle and control the power switching network based on the battery pack configuration data.