High-voltage control system and control method for electric vehicle
A high-voltage control, electric vehicle technology, applied in electric vehicles, electric vehicle charging technology, charging stations, etc., can solve problems such as high safety risks and achieve the effect of ensuring safety
Active Publication Date: 2021-05-21
GAC AION NEW ENERGY AUTOMOBILE CO LTD
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[0005] Embodiments of the present invention provide a high-voltage control system and control method for electric vehic
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[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0048] refer to figure 2 and image 3 , An embodiment of the present invention provides a high-voltage control system for an electric vehicle. The electric vehicle high-voltage control system includes a controller (not shown in the figure) and a high-voltage control circuit (not shown in the figure), and the high-voltage control circuit includes a power battery 10, a main positive relay 20 and a main negative relay connected to the power battery 10 ...
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The invention discloses a high-voltage control system and control method for an electric vehicle. The system comprises a controller and a high-voltage control circuit, wherein the high-voltage control circuit comprises a power battery, a main positive relay and a main negative relay which are connected with the power battery, a high-voltage load connected with the main positive relay and the main negative relay, and a quick charging circuit connected with the power battery; the fast charging circuit comprises fast charging relays arranged in series and a charging device used for being matched with the direct current fast charging pile, and further comprises a fault monitoring circuit connected with the high-voltage control circuit and used for collecting monitoring data. The controller is connected with the fault monitoring circuit, the main positive relay, the main negative relay and the quick charge relay, and is used for controlling the relays to be closed or opened according to monitoring data acquired by the fault monitoring circuit. According to the system, when a high-voltage component has a fault, the relay is controlled to be closed to form an arc discharge phenomenon, so that the relay is adhered and fails, and the safety in a direct-current quick charging process is ensured.
Description
technical field [0001] The invention relates to the technical field of electrical control of electric vehicles, in particular to an electric vehicle high-voltage control system and a control method. Background technique [0002] Electric vehicles are equipped with a high-voltage control system, which is used to control the work and energy flow cycle of various high-voltage components installed inside the electric vehicle. figure 1 It shows a high-voltage control system for an electric vehicle that can realize the DC fast charging function, including a controller (not shown in the figure), a power battery 10, a main positive relay 20 and a main negative relay 30 connected to the power battery 10, and a main The high-voltage load 40 connected to the positive relay 20 and the main negative relay 30, and the fast charging circuit 50 arranged in parallel with the main positive relay 20 and the high-voltage load 40, the fast charging circuit 50 includes a fast charging relay 51 ar...
Claims
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Login to View More IPC IPC(8): B60L53/00B60L3/00
CPCB60L53/00B60L3/00Y02T10/70Y02T10/7072Y02T90/14Y02T90/12
Inventor 李延定蒋辛培
Owner GAC AION NEW ENERGY AUTOMOBILE CO LTD