A kind of power battery preheating method and system
A technology of power battery and battery management system is applied in the field of power battery preheating method and system, which can solve the problem that electric vehicles cannot be used normally.
Active Publication Date: 2021-04-27
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0004] The present invention provides a power battery preheating method and system to solve the problem in the prior art that electric vehicles cannot be used normally in a cold environment
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[0071] 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.
[0072] Such as figure 1 As shown, the embodiment of the present invention provides a method for preheating a power battery, which is applied to a battery management system. The method for preheating a power battery includes:
[0073] S11: receiving the preheating request signal forwarded by the telematics processor;
[0074] It should be noted that the telematics processor is a device for wireless communication between the electric vehicle and...
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The present invention provides a power battery preheating method and system. The power battery preheating method includes: receiving a preheating request signal forwarded by a telematics processor; The heating information carried by the request signal; when the heating information indicates timing heating, determine the pre-heating duration according to the current temperature of the power battery. The pre-heating duration is the time required for the heating module to heat the power battery to the predetermined temperature; send the pre-heating duration to to the telematics processor, so that the telematics processor determines the heating time according to the preset vehicle use time and the pre-heating time; receives the heating instruction signal sent by the telematics processor at the heating time, and controls the heating module to heat the power battery. The present invention can preheat the power battery according to the time of use of the vehicle, thereby avoiding the problem that the temperature of the power battery is too low during the use of the vehicle and the vehicle cannot be used normally.
Description
technical field [0001] The invention relates to the field of power battery preheating, in particular to a power battery preheating method and system. Background technique [0002] With the rapid increase in the number of automobiles year by year, the ensuing environmental pollution and energy crisis are becoming more and more serious. Energy conservation and emission reduction, development of new energy vehicles have become the consensus of the people. Therefore, as the research and development technology of electric vehicles becomes more and more mature, the use of electric vehicles becomes more and more extensive. [0003] However, if a pure electric vehicle is placed in a very low temperature environment for a long time, the battery cell temperature of the power battery will be very low. If the vehicle is started immediately at this time, the power battery is likely to limit the power output, resulting in weakened vehicle power performance. When the temperature is low t...
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IPC IPC(8): H01M10/615H01M10/625H01M10/633B60L58/27
CPCB60L58/27H01M10/615H01M10/625H01M10/633Y02E60/10Y02T10/70
Inventor 翟燕田斌
Owner BEIJING ELECTRIC VEHICLE