Hybrid EV External Power Modes for Easier Output Setting
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Solution Overview
Problem
Users of conventional power control systems in hybrid electric vehicles face difficulty in setting the discharge power setting value for external power supply, making it challenging to understand how to set the power supply mode.
Innovation Solution
A hybrid electric vehicle system that includes an engine, generator, power storage device, and controller, which presents users with multiple power supply modes with different characteristics, allowing users to easily select and set the power supply mode for external power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user directly sets the discharge power setting value, then the power supply control is precise, but the operation becomes complex and difficult to understand
Solution Approach 1:
The patent transforms the complex continuous parameter (discharge power setting value) into discrete, pre-defined power supply modes with different characteristics. This allows users to select from multiple modes rather than manually setting precise power values, making the operation simpler while maintaining control precision through the structured mode options.
Solution Approach 2:
The patent introduces power supply modes as an intermediary layer between the user and the discharge power setting value. Instead of directly setting power values, users select from predefined modes that encapsulate power supply characteristics, thereby simplifying the interface while preserving the ability to control power output precisely.
2Measurement precision
If the system provides detailed power setting options, then the power supply control is precise, but the device complexity increases
Solution Approach 1:
The patent segments the continuous power supply control into discrete power supply modes, each representing a specific operational characteristic. This segmentation simplifies the user interface by presenting manageable options rather than a continuous spectrum of settings, while still providing sufficient control precision for different power supply scenarios.
3Measurement precision
If the user manually configures power supply parameters, then the power supply accuracy is high, but the time required for setup increases
Solution Approach 1:
The patent performs preliminary configuration by pre-defining multiple power supply modes with specific characteristics before the user needs to use the system. Users can directly select from these pre-configured modes without manually setting each parameter, thereby reducing setup time while maintaining the accuracy benefits of structured power supply control.
Data Source
AI summary
A hybrid electric vehicle includes engine configured to output power using fuel from a fuel tank, a generator configured to generate power using a power from the engine, a power storage device connected to a power line together with the generator; and a controller. When a user desires external power supply, in which power is supplied from the vehicle to outside of the vehicle, the controller presents the user with multiple power supply modes that have different power supply characteristics, and when the user selects one of the multiple power supply modes, the controller performs the external power supply in the power supply mode selected by the user.