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Power supply management device and power supply management method for range-extending logistics vehicle with slow charging

A power management device and power management technology, applied in charging stations, electric vehicle charging technology, electric vehicles, etc., can solve problems such as line short circuit, charging pile and vehicle body fire, power supply device damage, etc., to reduce current impact, suppress The effect of high frequency harmonic effects

Pending Publication Date: 2021-01-15
上海伊控动力系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most pure electric vehicles lack efficient management of power supply for charging equipment and engines, and when pure electric logistics vehicles are charged through slow charging piles, due to long-term or frequent plugging and unplugging, the induced current or voltage load increases instantaneously. Large surges are caused, which can easily damage electrical equipment. There are also situations such as short circuits caused by the aging or unstable performance of the power management device. Potential of fire or battery explosion

Method used

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  • Power supply management device and power supply management method for range-extending logistics vehicle with slow charging
  • Power supply management device and power supply management method for range-extending logistics vehicle with slow charging
  • Power supply management device and power supply management method for range-extending logistics vehicle with slow charging

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Experimental program
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Effect test

Embodiment 1

[0042] A power management device for a logistics vehicle with slow charging and extended program, such as figure 1 As shown, the power management device includes a battery pack 1, a key switch 2, a charger controller 3, an engine controller 4, a motor controller 5, a body controller 6, an instrument controller 7, a vehicle wake-up relay 8, a charging Wake-up relay 9, vehicle controller 10, high-voltage to low-voltage controller 11, high-voltage battery management controller 12, on-board slow charging controller 13 and slow charging pile 17 used in conjunction with the power management device, the key switch One end of the key switch is electrically connected to the battery pack, the other end of the key switch is provided with an Off end, an On end and a Start end, and the On end is respectively connected to the charger controller, the The signal input terminals of the engine controller, the motor controller, the vehicle body controller and the instrument controller are electr...

Embodiment 2

[0048] A kind of power supply management method that is used for the logistics vehicle with slow charging and extended program, such as Figure 2-Figure 4 shown, including the following steps:

[0049] S1. When the driver switches the key switch from Off to non-Off, and the first wake-up signal line is pulled high, the second wake-up signal line is pulled high, the third wake-up signal line is pulled low, and the fourth wake-up signal line is pulled high. The wake-up signal line is pulled low, the pure electric logistics vehicle is in the starting driving state, and enters the power management mode in the starting driving state;

[0050] S2. When the driver switches the key switch to the Off end, and the first wake-up signal line is pulled low, the second wake-up signal line is pulled high, the third wake-up signal line is pulled low, and the fourth wake-up signal line is pulled High level, the pure electric logistics vehicle is in the slow charging state, and enters the powe...

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Abstract

The invention discloses a power supply management device with a slow-charging extended-range logistics vehicle. The power supply management device comprises a battery pack, a key switch, a charger controller, an engine controller, a motor controller, a vehicle body controller, an instrument controller, a whole vehicle awakening relay, a charging awakening relay, a whole vehicle controller, a high-voltage to low-voltage controller, a high-voltage battery management controller, a vehicle-mounted slow charging controller, a surge protector, an overload protection circuit breaker, a short circuitprotection circuit breaker, and a low-speed charging pile. The above modules are used in cooperation to execute starting, slow charging and dormancy of the pure electric logistics vehicle. The invention further provides a power management method for the logistics vehicle with the slow-charging extended-range function. According to the invention, low-speed charging is realized, the surge protector,the overload protection circuit breaker and the short circuit protection circuit breaker are added between the low-speed charging pile and the vehicle-mounted low-speed charging controller, current impact is reduced through the surge protector in the low-speed charging process, high-frequency harmonic waves are inhibited, actions are triggered in time to cut off a power supply, and electrical equipment is protected.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to a power management device for a logistics vehicle with slow charging and extended range and a power management method applied to the power management device. Background technique [0002] Since pure electric logistics vehicles need to travel more mileage every day, pure electric logistics vehicles are basically equipped with fast charging functions. The fast charging function can charge more power to the high-voltage battery in a short period of time. At present, pure electric logistics vehicles are basically equipped with slow charging function, but considering the service life of high-voltage batteries and the use time and frequency of pure electric logistics vehicles, it is necessary to efficiently manage the power output and charging of pure electric vehicles. [0003] At present, most pure electric vehicles lack efficient management of power supply for cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/00B60L53/60
CPCB60L53/00B60L53/60Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 张吉军密刚刚黄啸
Owner 上海伊控动力系统有限公司
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