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Control method and control device for high-voltage energizing, and automobile

A high-voltage power-on and control method technology, which is applied in electric vehicles, circuit devices, battery circuit devices, etc., can solve the problem of not being able to detect whether the relay is stuck, and achieve the effect of reducing costs and improving acquisition accuracy.

Active Publication Date: 2018-11-16
BEIJING ELECTRIC VEHICLE
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Problems solved by technology

[0003] In order to solve the above technical problems, the embodiment of the present invention provides a high-voltage power-on control method, a control device and an automobile, which solves the problem that it is impossible to detect whether all relays are stuck when high-voltage power-on

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  • Control method and control device for high-voltage energizing, and automobile
  • Control method and control device for high-voltage energizing, and automobile
  • Control method and control device for high-voltage energizing, and automobile

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Embodiment Construction

[0060] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0061] An embodiment of the present invention provides a high-voltage power-on control method, and the high-voltage power-on control method is applied to a power battery system of an electric vehicle.

[0062] see figure 1 , figure 1 A schematic diagram of the power battery system, such as figure 1 As shown, the power battery system includes:

[0063] A load circuit 101 and a power battery 102 for powering the load circuit 101, the load circ...

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Abstract

The invention discloses a control method and a control device for high-voltage energizing, and an automobile, wherein the control method comprises the steps of before energizing of a power battery system, acquiring first voltage of a first measuring node relative to a first reference node; if the first voltage is higher than preset voltage, measuring second voltage of a second measuring node relative to a second reference node; if the second voltage is zero, switching on a main negative relay for entering a power battery system energizing process, and measuring third voltage of a third measuring node relative to the second reference node; if the third voltage is zero, performing pre-charging, and furthermore after pre-charging, switching on a main positive relay; measuring fourth voltage of a fourth measuring node relative to the second reference node, and measuring fifth voltage of a fifth measuring node relative to the second reference node; and if the fourth voltage is zero and thefifth voltage is zero, ending the energizing process. According to the control method and the control device, binding state determining can be performed on all relays of the power battery system, thereby ensuring high safety in energizing.

Description

technical field [0001] The invention relates to the field of electric vehicle battery systems, in particular to a control method for high-voltage power-on, a control device and a vehicle. Background technique [0002] At present, the high-voltage power-on method of the electric vehicle battery system can measure the voltage of the battery system, but cannot judge whether all relays are stuck. In this case, the relay is stuck without being detected, which will cause serious safety accidents in the high-voltage circuit of the battery system. Contents of the invention [0003] In order to solve the above technical problems, the embodiments of the present invention provide a high-voltage power-on control method, a control device, and a vehicle, which solve the problem that all relays cannot be detected for adhesion when high-voltage power-on. [0004] One aspect of the embodiments of the present invention provides a high-voltage power-on control method, which is applied to a ...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44B60L11/18
CPCH01M10/446H02J7/0077Y02E60/10Y02T10/70
Inventor 赵营营闫立国代康伟付舜鲁子涛
Owner BEIJING ELECTRIC VEHICLE
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