KR-20260064196-A - Car Carrier Vessel Equipped with Electric Vehicle Charging Control System

Abstract

The present invention relates to an electric vehicle transport vessel equipped with an electric vehicle charging rate control system that, in order to ensure efficient loading and unloading of electric vehicles while ensuring safe operation by reducing the risk of fire when transporting electric vehicles, recovers the power stored in the electric vehicle battery when the power is above a set level during loading and operation and maintains it below a set level, and charges the power stored in the electric vehicle battery to a level above that of loading before unloading so that the electric vehicle can be operated, the vessel comprises: a power generation facility (100); a main distribution board (200); a distribution board (300); and an electric vehicle charging rate control system (600); wherein the electric vehicle charging rate control system (600) comprises: an electric vehicle connection part (610) electrically connected to the battery of the electric vehicle being loaded; a supercapacitor (620) configured to be electrically connected to the electric vehicle battery and capable of transmitting power to each other; and a bidirectional DC-DC converter (630) installed between the electric vehicle battery connected to the electric vehicle connection part (610) and the supercapacitor (620). and a controller (660) for controlling the charge rate of the electric vehicle battery; is included.

Inventors

• 김양곤
• 이영철
• 박준성

Assignees

• 국립목포해양대학교산학협력단
• 사단법인 한국선급

Dates

Publication Date

20260507

Application Date

20241031

Claims (4)

1. Power generation facility (100); Main distribution panel (200); Distribution board (300); and Includes an electric vehicle charging rate control system (600); The above main distribution board (200) is, It includes a main busbar (220) connected to the above power generation facility (100); the above distribution board (300); and the above electric vehicle charging rate control system (600), and The above electric vehicle charging rate control system (600) is, Electric vehicle connection part (610) electrically connected to the battery of the electric vehicle being shipped; A supercapacitor (620) configured to be electrically connected to the electric vehicle battery and capable of transmitting power to each other; and A bidirectional DC-DC converter (630) installed between the battery of the electric vehicle and the supercapacitor (620) connected to the electric vehicle connection part (610); and A car carrier equipped with an electric vehicle charging rate control system characterized by including a controller (660) for controlling the charging rate of the electric vehicle battery.
2. In paragraph 1, The above controller (660) is, During shipping and navigation, the power of the electric vehicle battery is transferred to a supercapacitor (620) for temporary storage so that the electric vehicle battery becomes below a set charge level, and A car carrier equipped with an electric vehicle charging rate control system characterized by including a control to charge the power of the supercapacitor to the electric vehicle battery for the smooth operation of the electric vehicle loaded before unloading.
3. In paragraph 1, The above electric vehicle connection part (610); and the supercapacitor (620) are each additionally connected to the above main busbar (220), and The above power generation facility (100) is, It includes a PTO/PTI shaft generator (110) and a main generator (120), The above controller (660) is, A car carrier equipped with an electric vehicle charging rate control system, characterized in that when the power of the supercapacitor (620) is insufficient to charge the electric vehicle battery, the power produced by the PTO/PTI shaft generator (110) of the power generation facility (100) or the first and second power generation diesel engines (120, 130) which are the main generators can be used to charge the battery.
4. In paragraph 3, A car carrier equipped with an electric vehicle charging rate control system, characterized in that an AC-DC converter (640) is provided between the main busbar (220) and the shooter capacitor (620).

Description

Car Carrier Vessel Equipped with Electric Vehicle Charging Control System Car Carrier Vessel Equipped with Electric Vehicle Charging Control System The present invention relates to a car carrier vessel, and more specifically, to a car carrier vessel equipped with an electric vehicle charging rate control system that recovers power stored in an electric vehicle battery when the power exceeds a set level during loading and operation to maintain it below a set level, and charges the power stored in the electric vehicle battery to a level above that of loading to enable operation of the electric vehicle before unloading, in order to ensure efficient loading and unloading of electric vehicles while ensuring safe operation by reducing the risk of fire when transporting electric vehicles. Recently, fire and explosion accidents caused by lithium-ion batteries used in electric vehicles have been occurring frequently, creating fear regarding the use of electric vehicles and raising awareness of the potential risks of electric vehicle battery technology. Conventional car carriers (including passenger ships and vessels dedicated to transporting cars) treat loaded vehicles as cargo, and the cargo area is basically equipped only with forced ventilation fans to exhaust air from the area and fire extinguishing equipment. These cargo areas on board the ship are not only enclosed, but they are also equipped with only ship fire extinguishing equipment that does not use extinguishing agents suitable for suppressing lithium-ion battery fires. Therefore, in the event of a battery fire in an electric vehicle loaded within a ship's cargo area, not only is rapid fire suppression impossible from within the vessel, but extinguishing the fire with external support is also extremely difficult. Furthermore, a review of past accident cases indicates that a fire or explosion caused by an electric vehicle battery can result in the complete destruction of the vessel. As there is no rapid and appropriate method to extinguish a fire caused by a battery fire when an electric vehicle is loaded in the cargo area, passenger ships that recently load electric vehicles have been banning the loading of electric vehicles to prevent the ship from being completely destroyed by a fire caused by the electric vehicle battery, and some coastal passenger ships are loading electric vehicles in the cargo area with the battery charge level (State of Charge, SoC) of less than 50%. To meet this, electric vehicle users are unnecessarily driving their vehicles or operating power-consuming devices such as air conditioners, heaters, and seat heaters while the vehicle is stopped in order to forcibly lower the battery charge level (SoC) to 50% for the shipment of electric vehicles on ships. However, such unnecessary road driving and use of power devices result in significant economic losses, and there is a problem in that shipping overcharged electric vehicles does not ensure safe maritime operation of car carriers. FIG. 1. Power supply system diagram of a car transport vessel equipped with an electric vehicle charging rate control system according to the present invention. The present invention will be described below with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. Throughout the specification, when it is stated that a part is "connected (connected, in contact, combined)" with another part, this includes not only cases where they are "directly connected," but also cases where they are "indirectly connected" with other members interposed between them. Furthermore, when it is stated that a part "includes" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather allows for the inclusion of additional components. The terms used herein are merely for describing specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. As shown in FIG. 1, the car carrier equipped with the electric vehicle charging rate control system of the present invention includes a power generation facility (100), a main distribution board (200), a distribution board (300), a DC power supply facility (500), and an electric vehicle charging rate control system (600). The power generation facility (100) is substantially the same as the power generation facility equipped in the existing ship and, as shown in FIG. 1, includes