A high-voltage controller, system and electric vehicle
A technology of high-voltage controllers and motor controllers, applied in the fields of high-voltage controllers, systems and electric vehicles, can solve problems such as unfavorable integration, interruption of battery pack current transmission, etc., to facilitate integration, reduce volume, ensure performance and stability sexual effect
Active Publication Date: 2022-06-28
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0005] The embodiment of the present invention provides a high-voltage controller, system and electric vehicle, which are used to solve the current transmission interruption of the entire battery pack caused by the failure of one battery in the prior art when the battery pack consists of multiple batteries connected in series, and the on-board power distribution problem. There are two separate modules for the on-board charger and the DC voltage converter power supply, and there are also two control boards, which is not conducive to the problem of integration
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[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0049] The invention aims at the prior art that the battery pack is connected in series with a plurality of batteries, and the current transmission of the entire battery pack is easily interrupted due to the failure of one battery, and the on-board power supply is divided into two separate modules, the on-board charger and the DC voltage converter power supply, There are also two control boards, which are not conducive to integration, and provide a high-voltage controller, a system and an electric vehicle.
[0050] like figure 1 As shown, an embodiment of the present invention provides a high-voltage controller, including:
[0051] Bidirectional voltage conversion module, used for bidirectional energy flow, realizes the integration of boost an...
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The invention provides a high-voltage controller, a system and an electric vehicle, and relates to a high-voltage controller of a vehicle power supply. The high-voltage controller includes: a bidirectional voltage conversion module; a vehicle-mounted power supply integrated machine, connected to the bidirectional voltage conversion module; a motor controller drive module, respectively connected to the vehicle-mounted power supply integrated machine and the bidirectional voltage conversion module; a control board , respectively connected to the bidirectional voltage conversion module and the motor controller drive module. The scheme of the present invention adopts a bidirectional voltage conversion module, a bidirectional voltage converter, and has the performance of bidirectional energy flow. When the battery is discharged to the outside, the step-up power unit works; when the power supply charges the battery, the step-down power unit works. The working efficiency and working stability of the power system, the charging system and the battery are ensured, the cost is saved and the integration is beneficial.
Description
technical field [0001] The invention relates to the field of high-voltage control systems for vehicle-mounted power supplies, in particular to a high-voltage controller, a system and an electric vehicle. Background technique [0002] The lower the battery voltage, the better the battery pack, and the higher the voltage, the better the power system and charging system for high-voltage systems. [0003] At present, the energy density of the battery is getting higher and higher, but because the voltage of the single battery is getting lower and lower, the total voltage of the same number of batteries in series is lower and lower than before. If you simply increase the number of batteries in series, this Like a chain, it is possible to encounter the failure of one of the cells in the battery pack. The more cells that are connected in series, the higher the chance of this happening. As long as there is a problem with one battery, its voltage will drop. By the end, a "disconnec...
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IPC IPC(8): B60L58/10B60L53/24
CPCB60L58/10B60L53/24Y02T10/7072
Inventor 卢董蒋荣勋苏伟贺银杯张鑫
Owner BEIJING ELECTRIC VEHICLE