Vehicle power supply system and power management method thereof

A technology of power supply system and power management, applied in battery circuit devices, battery/fuel cell control devices, batteries, etc., can solve the problems of heavy weight and large volume of lead-acid batteries

Inactive Publication Date: 2012-05-16
ALL WIN GREEN POWER TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, lead-acid batteries also h

Method used

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  • Vehicle power supply system and power management method thereof
  • Vehicle power supply system and power management method thereof
  • Vehicle power supply system and power management method thereof

Examples

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Embodiment Construction

[0039] refer to figure 1 and figure 2 , the vehicle power supply system 100 includes a controller 10, a first circuit detection unit 12a and a second circuit detection unit 12b, a first battery 16a and a second battery 16b, a power supply 18, a circuit load 19, and switches SW1, SW2 and SW3. Such as figure 1 , in this embodiment, the vehicle battery includes a first battery 16a and a second battery 16b, wherein the first battery 16a is a Lithium-ion battery (Lithium-ion battery, LIB), the second battery is a lead-acid battery, and the Lithium-ion battery Including lithium iron phosphate batteries (LiFePO 4 ) or lithium cobalt battery (LiCoO 2 ), but not limited to.

[0040] The first battery 16 a and the second battery 16 b are respectively coupled between the power supply 18 and the circuit load 19 for receiving power from the power supply 18 or providing power to the circuit load 19 during charging or discharging operations. The first circuit detection unit 12a and th...

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PUM

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Abstract

The invention discloses a vehicle power supply system and a power supply management method thereof. The vehicle power supply system comprises a first battery, a second battery, a first circuit inspection unit, a second circuit inspection unit and a controller, wherein the first battery and the second battery are respectively coupled between a power supply and a circuit load to receive the power of the power supply or provide power for the circuit load; the first circuit inspection unit and the second circuit inspection unit are respectively coupled to the first battery and the second battery to inspect the charge-discharge degrees of the first battery and the second battery; and the controller generates a plurality of control signals according to the charge-discharge degrees of the first battery and the second battery to control a first switch, a second switch and a third switch respectively and then control the charging/discharging of the first battery and the second battery.

Description

technical field [0001] The invention relates to a power supply system, in particular to a vehicle power supply system and a power management method thereof. Background technique [0002] Lead-acid battery is the earliest rechargeable battery. After 150 years of continuous improvement and development, lead-acid battery has been successfully commercialized and occupies more than half of the rechargeable battery market. In addition to low cost, lead-acid batteries can provide a large surge current (surge current), so they are widely used to start the car starter motor (starter motor). [0003] The existing automobile power supply system is only provided with a lead-acid battery, which is used to provide the power supply when the automobile is started, and the power supply of other electronic devices after starting. However, in recent years, with the evolution of the automobile industry, cars are equipped with more and more devices with high power consumption, such as air condi...

Claims

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Application Information

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IPC IPC(8): H02J7/00B60L11/18
CPCH01M2220/20Y02E60/12Y02T10/7066B60L11/1864Y02T10/7061H01M10/48Y02T10/7005Y02T10/7055B60L11/18B60L11/1868H01M10/46H02J7/34B60L11/1853B60L58/18B60L58/21B60L58/20H02J2310/48Y02T10/70Y02E60/10
Inventor 丘为臣
Owner ALL WIN GREEN POWER TECH CORP
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