Lithium battery management method for two-wheeled electric vehicle
A two-wheeled electric vehicle and management method technology, applied in the field of lithium battery management, can solve hidden dangers, existing safety problems, etc., and achieve the effect of ensuring safety and avoiding safety hazards
Active Publication Date: 2022-04-15
JIANGSU XINRI E VEHICLE
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Problems solved by technology
[0004] In view of the lack of background technology, the present invention provides a lithium battery management method for two-wheeled electric vehicles. The technical problem to be solved is that the existing lithium battery After the voltage specification of the lithium battery is replaced, the two-wheeled electric vehicle can still run normally, which poses a safety hazard
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[0021] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0022] Such as figure 1 As shown, a lithium battery management method for a two-wheeled electric vehicle includes a trigger unit, an electric vehicle control unit, a BMS management unit and a motor drive unit, specifically including the following steps:
[0023] S1: The trigger unit sends a trigger signal to the electric vehicle control unit when the lithium battery of the two-wheel electric vehicle is reinstalled;
[0024] S2: After receiving the trigger signal, the electric vehicle control unit sends a request message for obtaining battery information to the BMS management unit;
[0025] S3: If the electric vehicle control unit does not receive the receive...
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The invention relates to the technical field of lithium batteries, and discloses a lithium battery management method of a two-wheeled electric vehicle, in actual use, when the lithium battery of the two-wheeled electric vehicle is reinstalled, whether the lithium battery of the two-wheeled electric vehicle is changed or not is judged by judging whether an electric vehicle control unit and a BMS management unit can normally establish communication or not; if the current is changed, the current input to the motor of the two-wheeled electric vehicle is reduced, so that potential safety hazards are avoided; in addition, after the electric vehicle control unit and the BMS management unit can establish communication, the BMS management unit judges whether the voltage specification, the maximum working current and the power of the specification of a lithium battery of the BMS management unit meet requirements or not according to battery information sent by the electric vehicle control unit, if not, the BMS management unit limits the output current of the lithium battery; therefore, when the two-wheeled electric vehicle runs normally, the installed lithium battery meets the requirement and is not changed, potential safety hazards are avoided, and the safety of a rider is guaranteed.
Description
technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a lithium battery management method for two-wheeled electric vehicles. Background technique [0002] In people's daily life, two-wheeled electric vehicles greatly facilitate people's short-distance travel. Two-wheeled electric vehicles use batteries as power sources. Commonly used batteries include lead-acid batteries and lithium batteries. Lithium batteries have high operating voltage, small size, light weight, high energy density, no memory effect, no pollution, and small self-discharge. and long cycle life, etc., are gradually replacing lead-acid batteries. However, due to their poor safety and defects such as explosion, lithium batteries need to be equipped with a BMS management system to protect lithium batteries from overcharge, overdischarge, and overcurrent. Security protection, balance protection and SOC calculation and other security protection. [0003] Aft...
Claims
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IPC IPC(8): B60L58/10B60L15/20B60L3/00B60L58/24B62J50/22B62J43/10
CPCY02T10/70Y02T10/72Y02T90/16B60L58/10B60L3/00B62J50/22B60L15/20B60L58/24B62J43/10
Inventor 刘会辉高利明石毓林
Owner JIANGSU XINRI E VEHICLE