A pure electric vehicle and its high-voltage cut-off circuit and high-voltage cut-off control method
A pure electric vehicle and circuit cutting technology, applied in the field of high-voltage control, can solve problems such as high-voltage safety hazards, and achieve the effect of ensuring high-voltage safety and preventing untimely high-voltage cutting off.
Active Publication Date: 2016-08-31
深蓝汽车科技有限公司
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Problems solved by technology
[0005] In view of this, the embodiment of the present invention provides a high-voltage cut-off circuit, a pure electric vehicle and a high-voltage cut-off control method to solve the problem of high-voltage safety hazards caused by using a single controller in the prior art
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[0042] 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 only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0043] figure 1 Schematic diagram of the structure of the high-voltage cut-off circuit provided by the embodiment of the present invention. The high-voltage cut-off circuit can perform optional high-voltage cut-off of the system through a non-single controller. Preferably, the maintenance switch or any high-voltage connector can also be pulled out To realize the high pressure cut-off of the system. In the embodiment of the present invention, the high-voltag...
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The invention provides a high-voltage cut-off circuit for pure electric vehicles, which includes a high-voltage circuit and a high-voltage cut-off control circuit. The high-voltage circuit includes high-voltage components, a first relay and a second relay, the first relay and the second relay are connected to each high-voltage component, the first relay includes a first contact, and the second relay includes a second contact; the high-voltage cut-off control The circuit includes a battery management system, a vehicle controller and a third relay, the battery management system is connected to the first relay and the second relay, the vehicle controller is connected to the third relay, and one end of the third relay is connected to a voltage less than 36 volts connected to the power supply, and the first relay and the second relay are connected to the power supply through the third relay. At the same time, the present invention also provides a pure electric vehicle including the above-mentioned high-voltage cut-off circuit and a high-voltage cut-off control method based on the high-voltage cut-off circuit.
Description
technical field [0001] The invention relates to the field of high-voltage control, in particular to a high-voltage cut-off circuit. In addition, the present invention also relates to a control method for the above-mentioned high-voltage cut-off circuit and a pure electric vehicle including the above-mentioned high-voltage cut-off circuit. Background technique [0002] With the development of the economy, energy and environmental protection issues have become increasingly prominent. All countries in the world have turned their attention to pure electric vehicles that are environmentally friendly and energy-saving. An important feature of pure electric vehicles is that they are equipped with high-voltage circuits that ensure sufficient power performance. [0003] The normal working voltage of the high-voltage circuit is as high as several hundred volts, which is far higher than the safe voltage of the human body at 36 volts. Therefore, in order to protect personal safety, it i...
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IPC IPC(8): B60L3/00
Inventor 嵇黎明冯超崔璐敏
Owner 深蓝汽车科技有限公司