Bidirectional EV Charging Adapter for USB-C Power Delivery
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Solution Overview
Problem
Current electric vehicles require dedicated chargers and AC power outlets for charging, limiting their use and flexibility, and their batteries are limited to powering the vehicle or small devices, lacking versatility.
Innovation Solution
An adapter and electric vehicle equipped with a bidirectional DC charging and discharging circuit, bypass circuit, and control circuit, allowing for power delivery through USB Type-C PD, enabling charging from various power sources and supporting multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dedicated chargers with AC power outlets are used for electric vehicles, then charging function is provided, but charging flexibility and field of use are significantly limited
Solution Approach 1:
The patent implements a universal charger that can charge multiple types of electric vehicles (different battery voltages and capacities) using a single device. The charger automatically detects and adapts to different vehicle requirements, eliminating the need for multiple dedicated chargers and AC power outlets, thus improving charging flexibility while reducing device complexity
Solution Approach 2:
The patent introduces a DC power bank as an intermediary charging device that can store power and provide DC charging directly to electric vehicles without requiring AC power outlets. This intermediary solution enables charging in locations without AC power, significantly expanding the field of use and charging flexibility
2Adaptability or versatility
If battery power is used to drive the motor or maintain the vehicle system, then vehicle operation is enabled, but power output for external devices is limited to small power (such as 15 watts)
Solution Approach 1:
The patent enables the electric vehicle battery to serve multiple functions: not only driving the motor and maintaining vehicle systems, but also providing high-power charging to external devices through the universal charger. The battery can output power at levels much higher than the traditional 15 watts, allowing it to charge laptops, tablets, and other power-hungry devices, thus dramatically improving power output capability and versatility
Solution Approach 2:
The patent implements bidirectional power flow capability where the electric vehicle battery can serve itself by charging its own battery pack or providing power to external devices. The vehicle becomes a mobile power station that can independently provide power without external AC outlets, enhancing both versatility and available power for external devices
Data Source
AI summary
An adapter with power delivery function includes a power transmission module, a first input connector, and an output connector. The power transmission module includes a bidirectional DC charging and discharging circuit, a bypass circuit, and a control circuit. The control circuit is coupled to the bidirectional DC charging and discharging circuit and the bypass circuit. The first input connector is coupled to the bidirectional DC charging and discharging circuit, the bypass circuit, and the control circuit. The first input connector includes a high voltage level pin, a low voltage level pin, and an identification pin. The output pin is coupled to the bidirectional DC charging and discharging circuit and the bypass circuit. The present disclosure further provides an electric vehicle and a wire with power delivery function.