Battery automatic switching device and control method thereof
An automatic switching and battery technology, applied in terminal battery switching devices, battery/fuel cell control devices, electric vehicles, etc., can solve potential safety hazards, inconvenient manual switching of battery packs, etc., to eliminate power supply interruptions and prolong standby time , using simple effects
Active Publication Date: 2018-06-12
HANGZHOU LINAN BEYONDER POWER
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Problems solved by technology
However, it is inconvenient to manually switch battery packs during driving of electric vehicles, and there are even potential safety hazards.
Method used
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[0028] Further description will be given below in conjunction with the embodiments shown in the accompanying drawings (taking two battery packs as an example).
[0029] figure 1 As shown, the positive and negative inputs of the battery automatic switching device 3 are respectively connected to the positive pole of the first battery pack 1 and the positive pole of the second battery pack 2 via connecting wires (BAT1_+, BAT1_-, BAT2_+, BAT2_-). It is also connected to the corresponding communication circuits of the first battery pack 1 and the second battery pack 2 via communication signal lines (BAT1_TX, BAT1_RX, BAT2_TX, BAT2_RX); OUT_-) is not only connected to the electric vehicle operation controller 4, but also connected to the corresponding communication circuit of the electric vehicle operation controller via communication signal lines (RX, TX).
[0030] The input of the automatic battery switching device 3 can be connected to two sets of batteries and the communication...
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The invention relates to a battery automatic switching device and a control method thereof, and is aimed at providing an improvement and control method of an electric vehicle battery automatic switching device. According to online situation and remaining amount of electricity of battery group, when the electric vehicle has multiple groups of batteries, one group of the batteries is chosen to supply power; and when the battery power of the group of the batteries is about to be exhausted, other battery group is automatically switched to supply power in a seamless mode. The technical scheme is that the battery automatic switching device is connected between at least one group of the batteries and an operation controller of the electric vehicle. The battery automatic switching device includesa communication circuit connected with the battery group by sequence, a single chip microprocessor, the communication circuit connected with the operation controller of the electric vehicle, a power discharge switch circuit and a voltage regulated power circuit. The battery automatic switching device is characterized in that communication signal lines are correspondingly electrically connected between the battery automatic switching device and battery group, and the battery automatic switching device and the operation controller of the electric vehicle; and the public ends of the communicationsignal lines between the battery automatic switching device and the battery group are connected with the anode ends of the battery group.
Description
technical field [0001] The invention relates to a device and a control method for automatic switching of batteries, in particular to a device for automatic switching of batteries in an electric bicycle and a control method thereof. Background technique [0002] In order to extend the cruising range of electric vehicles, especially electric bicycles, some electric vehicles can be equipped with multiple sets of batteries. Due to the inherent characteristics of the battery, if the capacity or material of the battery is different, especially when the terminal voltages of the two battery packs are inconsistent, if the two sets of batteries are directly used in parallel, there will be a big abnormality between the two sets of batteries. current. [0003] For example, the voltage difference between two battery packs is 5V, and the sum of the internal resistance of the two battery packs is 0.01 ohm. When the two battery packs are directly connected in parallel, the instantaneous di...
Claims
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IPC IPC(8): B60L11/18H02J7/36
CPCH02J7/36B60L58/20B60L2200/12Y02T90/16Y02T10/70
Inventor 王希华张宝明孔云锋
Owner HANGZHOU LINAN BEYONDER POWER