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Charging management method and system for pure electric vehicle

A technology for a pure electric vehicle and a battery management system, which is applied in the field of charging management methods and systems for pure electric vehicles, and can solve the problems of increased charging management costs and many hardware interface resources.

Active Publication Date: 2021-01-15
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the embodiments of the present invention provide a charging management method and system for pure electric vehicles, which are used to solve the problem that the wake-up mechanism leads to relatively large hardware interface resources occupied when charging pure electric vehicles in the prior art. Many technical issues that lead to increased cost of charge management

Method used

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  • Charging management method and system for pure electric vehicle
  • Charging management method and system for pure electric vehicle
  • Charging management method and system for pure electric vehicle

Examples

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Embodiment 1

[0051] This embodiment provides a charging management method for pure electric vehicles, such as figure 1 As shown, the methods include:

[0052]S110, when it is detected that the charging gun is inserted into the charging port of the vehicle, use the on-board charger to receive the first wake-up instruction sent by the charging pile; the charging pile includes: a slow charging pile or a fast charging pile;

[0053] Here, the charging methods of the pure electric vehicle include slow charging and fast charging. In order to reduce hardware resource interface occupation in this embodiment, the wake-up mechanism of slow charging and fast charging can use the same wake-up mechanism.

[0054] Specifically, when it is detected that the charging gun is inserted into the charging port of the vehicle, the on-board charger OBC is used to receive the first wake-up command sent by the charging post; the charging post includes: slow charging post or fast charging post. Wherein, the first ...

Embodiment 2

[0092] This embodiment provides a charging management system for pure electric vehicles, such as image 3 As shown, the system includes: on-board charger 1, battery management system 2, vehicle control unit 3 and motor control unit 4;

[0093] The on-board charger 1 is used to receive the first wake-up command sent by the charging pile when it is detected that the charging gun is inserted into the charging port of the vehicle; the charging pile includes: slow charging pile 5 or fast charging pile 6; when in the wake-up state, Send the second wake-up command to the battery management system 2, the vehicle control unit 3 and the motor control unit 4; the first wake-up command and the second wake-up command are transmitted through hard wires;

[0094] The vehicle control unit 3 is configured to send a third wake-up instruction to the gateway 7 when in the wake-up state;

[0095] The gateway 7 is configured to send a fourth wake-up command to the meter 8 when in the wake-up state...

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Abstract

The invention provides a charging management method and system for a pure electric vehicle. The method comprises the steps of receiving a first awakening instruction sent by a charging pile by means of a vehicle-mounted charger; sending a second wake-up instruction to the battery management system, the vehicle control unit and the motor control unit by using the vehicle-mounted charger; sending athird wake-up instruction to the gateway by using the vehicle control unit; sending a fourth wake-up instruction to the instrument by using the gateway; and when the vehicle control unit receives a high-voltage power-on permission instruction sent by the vehicle-mounted charger, the motor control unit and the battery management system, sending a high-voltage power-on instruction, so that the vehicle enters a charging mode. Thus, no matter slow charging or fast charging, the same awakening mechanism can be used for awakening, and then the vehicle is charged, so that hardware interface resourcesare saved; in addition, the corresponding wake-up instruction is transmitted through cooperation of the hard wire and the CAN bus, occupation of hardware interface resources is further reduced, and then the charging management cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle charging, and in particular relates to a charging management method and system for pure electric vehicles. Background technique [0002] During the charging process of pure electric vehicles, the wake-up and sleep mechanisms of the controller affect the charging efficiency and charging safety. The wake-up mechanism during charging includes: components that need to be woken up, wake-up methods, etc. Among them, the wake-up methods mainly include hard-wire wake-up and CAN wake-up. [0003] Because the charging methods of pure electric vehicles include fast charging and slow charging, when charging pure electric vehicles in the prior art, one is to adopt different wake-up methods for the slow charging and fast charging processes, and the on-board charger (OBC, On-boardCharger) and battery management system (BMS, Battery Management System) need to design two control hardware interface resou...

Claims

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Application Information

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IPC IPC(8): B60L53/60B60L53/66B60L53/31B60L53/14
CPCB60L53/60B60L53/66B60L53/31B60L53/14Y02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 白志浩赵征澜佘建强张丽徐飞
Owner DONGFENG MOTOR CORP HUBEI
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