Vehicle Timer Charging Control for AC and DC Charging
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Solution Overview
Problem
Existing vehicle charging systems lack a unified method for timer charging that can accommodate both alternating current (AC) and direct current (DC) charging, with different control devices and locations required for each type, leading to inefficiencies in scheduling and information management.
Innovation Solution
A vehicle equipped with a communication device and electronic control unit that can communicate with a server to manage both AC and DC charging, allowing for timer charging by setting schedules locally for AC charging and remotely for DC charging, reducing the need for extensive information exchange and optimizing charging processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If timer charging is implemented with separate control methods for AC and DC charging, then both charging types can be supported, but the system complexity and information management burden increase
Solution Approach 1:
The patent creates a universal timer charging control system that can handle both AC and DC charging types through a unified approach. The control device determines the charging type and automatically selects the appropriate timer charging mode (vehicle-side for AC, charging facility-side for DC), eliminating the need for separate control systems for each charging type while maintaining full compatibility.
2Ease of operation
If timer charging control is performed at the vehicle side for AC charging, then the control is simple, but the location of control differs from DC charging which requires facility side control
Solution Approach 1:
The patent implements a dynamic control location selection mechanism where the control device determines whether to perform timer charging control at the vehicle side or charging facility side based on the charging type. For AC charging, the vehicle side performs control; for DC charging, the charging facility side performs control. This dynamic adaptation maintains operational simplicity for each charging type while providing the necessary flexibility.
3Reliability
If extensive information exchange is performed between vehicle and server for timer charging, then accurate scheduling is achieved, but communication overhead and processing time increase
Solution Approach 1:
The patent extracts and removes unnecessary information exchange steps from the timer charging process. By determining the charging type first and then selecting the appropriate control mode, the system avoids redundant communication between the vehicle and server. The vehicle receives only the necessary timer charging control instruction from the server, significantly reducing communication overhead while maintaining scheduling accuracy.
Data Source
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AI summary
A vehicle (100) that enables external charging which is charging of a vehicle-mounted electric power storage device (115) using electric power supplied from an electric power supply outside the vehicle includes a communication device (155) configured to communicate with a server (300) outside the vehicle, and an electronic control unit (165). The ECU (165) is configured to execute a process for timer charging that is the external charging executed in accordance with a set time schedule. When the timer charging based on alternating current charging is performed, the ECU (165) is configured to set the time schedule in the vehicle (100) without using the server (300). When the timer charging based on direct current charging is performed, the ECU (165) is configured to control the communication device (155) to transmit data needed for setting the time schedule in a direct current electric power supply facility (200) to the server (300).