A control method and device for vehicle charging thermal management
A control method and thermal management technology, which is applied in the control field of vehicle charging thermal management, can solve problems affecting the service life and achieve the effect of ensuring the service life
Active Publication Date: 2021-11-19
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0003] The technical problem to be solved by the embodiments of the present invention is to provide a control method and device for thermal management of vehicle charging, which is used to solve the problem that the high-voltage relay needs to be repeatedly closed and disconnected for thermal management when charging an electric vehicle, which affects its The problem of service life
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[0063] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
[0064] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...
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Embodiments of the present invention provide a control method and device for thermal management of vehicle charging, wherein the control method applied to the vehicle includes: when it is determined that the vehicle supports a predetermined thermal management working mode according to the thermal management compatibility information sent by the charging pile, and the vehicle has When thermal management is required, keep the main positive relay and the main negative relay in the disconnected state, send request information to the charging pile; receive the charger output ready signal sent by the charging pile, and enter the first thermal management working state; When thermal management is required, exit the first thermal management working state, close the main positive relay and the main negative relay, and enter the charging mode. In the technical solution of the present invention, when the vehicle needs thermal management, the battery is thermally managed and then the main positive relay and the main negative relay are closed for charging. On the basis of ensuring that the vehicle can perform thermal management, the high-voltage relay is prevented from being repeatedly opened and closed. In turn, it is beneficial to ensure the service life of the high voltage relay.
Description
technical field [0001] The invention relates to the technical field of vehicle charging, in particular to a control method and device for thermal management of vehicle charging. Background technique [0002] When the vehicle power battery is being charged, the temperature of the power battery has certain requirements. When the temperature of the power battery is too low, the power battery is not allowed to be charged. At present, most of the power batteries on vehicles have the function of low-temperature charging and heating. When the high-voltage relay is disconnected, the power battery is heated to an appropriate temperature by using the electric energy of the charging pile. However, in the charging configuration stage, the vehicle must first close the DC high-voltage relay of the power battery to conduct the charging circuit. The car must first close the high-voltage relay of the power battery. After the charging pile confirms and outputs high voltage, in order to preve...
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IPC IPC(8): B60L53/66B60L53/14B60L53/60B60L58/24
CPCB60L2240/545Y02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 王伟刘文月易迪华梁海强代康伟
Owner BEIJING ELECTRIC VEHICLE