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A power-on control method based on the dual power drive system of an electric bus

A dual-power drive and drive system technology, applied to electric vehicles, vehicle components, electrical devices, etc., can solve problems such as the inability to complete the power-on operation of the entire vehicle, simplify the power-on control process, ensure uninterrupted output, and improve The effect of control efficiency

Active Publication Date: 2022-03-18
厦门金龙汽车新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because there is only one set of power drive system for an electric bus, if one of the components fails to operate, the whole vehicle will not be able to complete the power-on operation, and can only be anchored in place, waiting for rescue, which has great disadvantages

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  • A power-on control method based on the dual power drive system of an electric bus
  • A power-on control method based on the dual power drive system of an electric bus
  • A power-on control method based on the dual power drive system of an electric bus

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described below with reference to the accompanying drawings. In order to provide a comprehensive understanding of the present invention, many details are described below, but it will be apparent to those skilled in the art that the present invention can be practiced without these details.

[0028] refer to figure 1 , a dual-power drive system for an electric bus, comprising a first drive system, a second drive system, and a vehicle controller 300 communicatively connected to the first drive system and the second drive system; the first drive system includes sequentially connected first The power battery 101, the first high-voltage power distribution cabinet 102, the first motor controller 103 and the first motor 104, and the first main negative relay K1 is arranged between the first high-voltage power distribution cabinet 102 and the first power battery 101, and the first A first main positive relay K2 and a first p...

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Abstract

The invention discloses a power-on control method based on a dual-power driving system of an electric passenger car, wherein the dual-power driving system includes a first driving system, a second driving system, and communication with the first driving system and the second driving system. connected vehicle controller; in this power-on control method, the vehicle controller respectively detects the fault conditions of the relays in the first drive system and the second drive system, and thus selects to use the first drive system and / or the second drive system The system is powered on with high voltage, so as to realize the mutual switching between the first drive system and the second drive system in case of failure, ensure the uninterrupted output of the vehicle power supply system, and avoid the phenomenon that the vehicle cannot run due to the failure of a single drive system.

Description

technical field [0001] The invention relates to the technical field of pure electric passenger cars, in particular to a power-on control method based on a dual-power drive system of an electric passenger car. Background technique [0002] The power drive system of a traditional electric bus usually includes power batteries, motors, motor controllers, high-voltage power distribution cabinets, electrical accessories (oil pumps, air pumps, DCDC, etc.) and vehicle controllers. The power-on process of the main drive of the electric bus is generally as follows: the vehicle controller sends an instruction to close the main and negative relays to the power battery, and after the power battery responds to the closure, the vehicle controller sends an instruction to close the pre-charge relay to the high-voltage power distribution cabinet , and after pre-charging is completed within the set time, close the main positive relay and disconnect the pre-charging relay. Subsequently, if the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00B60L3/12
CPCB60L3/0023B60L3/12
Inventor 叶伟宏陈厚波林汉坤
Owner 厦门金龙汽车新能源科技有限公司