Electric vehicle control method, system and vehicle
A technology of electric vehicles and control methods, applied in electric vehicles, vehicle components, collectors, etc., can solve the problems of vehicle flameout, affecting driving safety, and failure to restart, and achieve the effect of improving safety and reliability
Active Publication Date: 2020-07-24
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
When the DC power converter fails, the low-voltage power of the whole vehicle is supplied from the low-voltage battery. In a short period of time, the power of the low-voltage battery will be exhausted. The result may be that the vehicle suddenly turns off and cannot be restarted, affecting driving. Safety
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[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0031] The control method, system and vehicle of an electric vehicle according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0032] Before describing the control method and system of the electric vehicle according to the embodiment of the present invention, the electric vehicle is described first. The electric vehicle in the embodiment of the present invention is a pure electric vehicle, including a high-voltage system and a low-voltage system, and the high-voltage syste...
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The invention discloses a control method and system of an electric automobile and the electric automobile. The method comprises the following steps that whether a direct-current source converter of the electric automobile malfunctions or not is detected, and wherein, the direct-current source converter is used for transferring high tension electricity into low tension electricity and then supplying electricity to a low-voltage system of the electric automobile; if malfunction happens during running of the electric automobile, the direct-current source converter is restarted; and if restarting of the direct-current source converter fails or malfunction still exists after restarting, a hint message is sent, and a high-voltage system of the electric automobile is controlled to postpone feeding electricity. By means of the control method of the electric automobile, the safety and reliability of the electric automobile in the running process can be effectively improved.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a control method, system and vehicle of an electric automobile. Background technique [0002] New energy vehicles, such as pure electric vehicles or hybrid vehicles, have the advantages of low energy consumption and low pollution. However, for a pure electric vehicle, since it does not have a generator, a direct current power converter (DC / DC converter) is required to convert high-voltage power into low-voltage power required for the operation of a low-voltage battery. When the DC power converter fails, the low-voltage power of the whole vehicle is supplied from the low-voltage battery. In a short period of time, the power of the low-voltage battery will be exhausted. The result may be that the vehicle suddenly turns off and cannot be restarted, affecting driving. Safety. Contents of the invention [0003] The present invention aims at solving one of the technical problem...
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IPC IPC(8): B60L3/00B60L1/00
CPCB60L1/00B60L3/0023B60L2210/12
Inventor 王峰军
Owner BEIQI FOTON MOTOR CO LTD