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Vehicle starting device, emergency starting power supply and vehicle starting power supply

A technology for starting devices and vehicles, applied in circuit devices, battery circuit devices, collectors, etc., can solve problems such as inability to use as a starting power supply, fast aging of super capacitors, over-discharge of batteries, etc., to improve starting reliability and large Good current output characteristics and extended service life

Inactive Publication Date: 2018-03-13
河南省桓立机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the applicant found that when the supercapacitor and the battery are directly connected in parallel for a long time to start the vehicle, there is a problem of overdischarge of the battery caused by the leakage of the supercapacitor. start power usage
In addition, the applicant also found that when the supercapacitor is directly connected in parallel with the battery for a long time to start the vehicle, the supercapacitor ages quickly and the capacity decays seriously

Method used

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  • Vehicle starting device, emergency starting power supply and vehicle starting power supply
  • Vehicle starting device, emergency starting power supply and vehicle starting power supply
  • Vehicle starting device, emergency starting power supply and vehicle starting power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The vehicle starting device of this embodiment is applied to start the vehicle with the supercapacitor module 11 and the rechargeable battery pack 12, such as figure 1 As shown, the device includes a controller 13, a first switch circuit 14 and a second switch circuit 15, wherein:

[0048] The controller 13 is used to send an enable signal to the first switch circuit 14; The second switch circuit 15 sends a closing signal;

[0049] The first switch circuit 14 is used to connect the supercapacitor module 11 and the rechargeable battery pack 12 in parallel according to the enable signal sent by the controller 13, and to adjust the supercapacitor module 11 and the rechargeable battery pack. The electric current of formula battery pack 12 parallel circuits;

[0050] The second switch circuit 15 is used for directly connecting the supercapacitor module 11 and the rechargeable battery pack 12 in parallel according to the closing signal sent by the controller 13 .

[0051] ...

Embodiment 2

[0062] In an optional solution, the first switch circuit 14 includes an energy storage switch drive circuit 141 and an energy storage switch circuit 142, such as image 3 shown, where:

[0063] The energy storage switch drive circuit 141 is used to make the energy storage switch circuit 142 in a conducting state according to the enable signal sent by the controller 13, and to adjust the current of the energy storage switch circuit 142;

[0064] The energy storage switch circuit 142 is connected to the supercapacitor module 11 and the rechargeable battery pack 12 respectively. When the energy storage switch circuit 142 is in a conducting state, the rechargeable battery pack 12 and the supercapacitor module 11 Through the parallel connection of the energy storage switch circuit 142 , the rechargeable battery pack 12 can charge the supercapacitor module 11 with a constant current through the energy storage switch circuit 142 .

[0065] Optionally, the controller 13 is also confi...

Embodiment 3

[0069]In an optional embodiment, the vehicle starting device may also have an overvoltage protection function. The controller 13 is used for judging that when the voltage value of the rechargeable battery pack 12 is lower than the first voltage threshold or higher than the second voltage threshold, send a disable signal to the first switch circuit 14 or send a signal to the first switch circuit 14. The second switch circuit 15 sends a disconnection signal and a fault signal, and the first voltage threshold<the second voltage threshold.

[0070] For such as image 3 The starting device for a vehicle shown sends a disabling signal to the first switch circuit 14 , specifically, sends a disabling signal to the energy storage switch drive circuit 141 . If it is in the constant current pre-charging mode, send a disable signal to the energy storage switch drive circuit 141 , and if it is in the direct parallel charging mode, send a disconnection signal to the second switch circuit 1...

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PUM

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Abstract

The invention discloses a vehicle starting device, an emergency starting power supply and a vehicle starting power supply. The problems of capacity fade and electric leakage of a super capacitor whena vehicle is started by virtue of the super capacitor can be solved, and meanwhile, heavy current impact risks probably brought by direct parallel connection of the super capacitor and a rechargeablebattery are eliminated. The vehicle starting device is used for starting a vehicle after being connected with a super capacitor module and a rechargeable battery pack, and comprises a controller, a first switching circuit and a second switching circuit, wherein the controller is used for sending an enabling signal to the first switching circuit and, when determining that a voltage difference of the rechargeable battery pack and the super capacitor module is smaller than a preset safety value, sending a closing signal to the second switching circuit; the first switching circuit is used for connecting the super capacitor module and the rechargeable battery pack in parallel according to the enabling signal sent by the controller and regulating the current of a parallel circuit of the super capacitor module and the rechargeable battery pack.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a vehicle starting device, an emergency starting power supply and a vehicle starting power supply. Background technique [0002] At present, the starting power supply of vehicles is basically lead-acid batteries. The vehicle needs a large starting current when starting, but the performance of the battery becomes very poor when it is discharged at a high rate and low temperature. [0003] A supercapacitor is a power source with special properties between traditional capacitors and batteries. It mainly relies on electric double layers and redox pseudocapacitive charges to store electrical energy. Supercapacitors have the advantages of high power density, short charge and discharge time, long cycle life, and wide operating temperature range. The supercapacitor is used with the battery in the electric starting system of the internal combustion engine, which can effectively protect the ba...

Claims

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Application Information

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IPC IPC(8): H02J7/34B60R16/03
CPCH02J7/345B60R16/03
Inventor 余海涛李明光余海淼赵凯
Owner 河南省桓立机电科技有限公司