Vehicle-to-vehicle charging system and control method thereof

A charging system and control method technology, applied in the field of vehicle-to-vehicle charging system and control, can solve problems such as low power conversion efficiency, limited rescue capabilities, limited rescue scenarios, etc., to increase vehicle costs, widen rescue range, improve Effects of Market Response Ability and Customer Car Experience

Pending Publication Date: 2021-12-21
重庆长安新能源汽车科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For example, the patent application number is 201720999147.5, which is called "a new energy vehicle vehicle-to-vehicle charging system" and the patent application number is 201810260158.0, which is named "a device and method for vehicle-to-vehicle charging". Vehicle-to-vehicle charging solution, but its technical solution has the following disadvantages: 1. Vehicle-to-vehicle rescue, the rescue c

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  • Vehicle-to-vehicle charging system and control method thereof
  • Vehicle-to-vehicle charging system and control method thereof

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Embodiment 1

[0041] Such as figure 1 As shown, this embodiment is a vehicle-to-vehicle charging system, which mainly includes a discharging vehicle, a charging connection device and a charging vehicle.

[0042] Specifically, the discharge vehicle is a range-extended vehicle with DC charging function (its range extender does not directly participate in vehicle driving, and the range extender is only used to generate power for the vehicle power system), and its key subsystems mainly include range-extender Inverter (integrated gasoline engine and generator), vehicle controller A, inverter A, DC charging port A and power battery A (including battery control unit), all control units exchange information through the CAN network. During normal driving, the AC three-phase power generated by the range extender can be used to charge the power battery A after AC-DC conversion by the inverter A, and can also be directly used to drive the motor; when used as a rescue vehicle, discharge the power batter...

Embodiment 2

[0047] On the basis of Embodiment 1, this embodiment provides a new energy vehicle vehicle-to-vehicle charging control method, which generally includes the following steps:

[0048] Step 1, the charging connection device completes the connection between the discharging vehicle and the charging vehicle.

[0049] Step 2, the vehicle controller A of the discharging vehicle controls the start of the range extender, cuts off the main relays K3 and K4, and prepares for the external power generation of the range extender.

[0050] Step 3. The vehicle controller A controls the range extender to enter the voltage closed-loop control mode, wakes up the charging vehicle, and controls the electronic lock of the charging and discharging guns to lock, recognizes and enters the DC charging state, and the vehicle controller B controls the charging vehicle to complete the high voltage Power-on.

[0051] Step 4, enter the DC charging process and prepare for charging.

[0052] Step 5, the vehi...

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Abstract

The invention provides a vehicle-to-vehicle charging system and method. The vehicle-to-vehicle charging system comprises a charging connection device, a charging vehicle and a discharging vehicle provided with a range extender. Power is generated through the range extender carried by the discharging vehicle, three-phase alternating current is converted into direct current through the inverter, the direct current is directly transmitted to the charging vehicle through a direct current charging port and a charging connecting device, and the charging device has advantages of being high in charging speed and charging efficiency and not limited by the electric quantity of a power battery of the discharging vehicle; the charging and discharging vehicles do not need to be additionally provided with other hardware systems, so the technical scheme can be realized on the basis of not additionally increasing the vehicle cost, and the market rescue response capability and the vehicle use experience of customers are greatly improved.

Description

technical field [0001] The invention relates to the technical field of external charging for new energy vehicles, in particular to a vehicle-to-vehicle charging system and control method. Background technique [0002] At present, the energy crisis and environmental degradation have become important factors restricting the development of the global economy. Research on energy-saving and environmentally friendly new energy vehicles is one of the effective means to relieve energy pressure and reduce environmental pollution. New energy vehicles have long been listed as national strategic emerging vehicles. industry. In recent years, my country's new energy vehicles have shown an explosive growth trend. Looking forward to the development vision of the "New Energy Vehicle Industry Development Plan (2021-2035)", by 2025, the sales of new energy vehicles will reach the total sales volume of new vehicles. About 20%. Under the general environment of industrial development, pure electr...

Claims

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Application Information

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IPC IPC(8): B60L53/14B60L53/16B60L53/30B60L53/57B60L53/22B60L53/60
CPCB60L53/14B60L53/16B60L53/305B60L53/57B60L53/22B60L53/60Y02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 肖波刘杰彭政瑜张旭云翟钧李宗华
Owner 重庆长安新能源汽车科技有限公司
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