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Hybrid electric vehicle self-power-generating limp system and method, and vehicle

A hybrid vehicle, self-generating technology, applied in electric vehicles, electrical devices, vehicle energy storage, etc., can solve problems such as BSG motors not working properly

Inactive Publication Date: 2018-10-19
GEELY AUTOMOBILE INST NINGBO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a self-generating limp system, method and automobile of a hybrid electric vehicle, to alleviate the problem that the BSG motor cannot work normally due to a power battery failure, and to improve the reliability of the vehicle during driving , to protect the personal and property safety of drivers

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  • Hybrid electric vehicle self-power-generating limp system and method, and vehicle

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] At present, in the system solution where the power generation source of the whole vehicle of the hybrid electric vehicle is only 48V BSG motor, when the 48V power battery cannot provide power for the BSG motor due to the damage of the relay or the damage of the battery pack, the BSG motor cannot work normally , due to the lack of power in the battery, the vehicle eventually brea...

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Abstract

The invention provides a hybrid electric vehicle self-power-generating limp system and method, and a vehicle. The hybrid electric vehicle self-power-generating limp system comprises an engine, a controller, a storage battery and a power battery pack, and further comprises a direct current converter (DCDC) and a BSG which are connected to the controller, wherein the storage battery is used for being externally connected with a whole vehicle load. When the controller detects a power supply failure of the power battery pack, a boost mode command is sent to the DCDC; the DCDC converts the low voltage of the storage battery into high voltage and provides the high voltage to the BSG; and the BSG activates a self-power-generating limp mode under the excitation of the high voltage, converts the kinetic energy transmitted by the engine into electric energy, transmits the electric energy to the storage battery through the DCDC so that the storage battery can supply power for the whole vehicle load, the problem that the BSG cannot work properly due to a power battery failure is alleviated, and personal and property safety of a driver is ensured.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicle control, in particular to a self-generating limp system and method of a hybrid electric vehicle and the vehicle. Background technique [0002] A hybrid vehicle operates by using power from an internal combustion engine and power from a battery. Specifically, a hybrid vehicle is designed to efficiently combine and use power from an internal combustion engine and an electric motor. [0003] In the system solution where the vehicle power generation source of a hybrid electric vehicle is only a 48V BSG (Belt Driven Starter Generator, belt-type starter / generator) motor, when the 48V power battery cannot be used as a BSG motor due to a damaged relay or a damaged battery pack, etc. When providing power supply, since the BSG motor is an excitation motor, it cannot work normally without the 48V power supply, and the 12V battery will be exhausted soon without a separate motor for power gene...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L11/12B60L11/18
CPCB60L3/0046B60L50/15B60L58/10Y02T10/70
Inventor 陈祝清向守智高富诚
Owner GEELY AUTOMOBILE INST NINGBO CO LTD
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