Hybrid electric vehicle and engine start control method thereof

A technology of hybrid electric vehicles and engines, which is applied in the fields of hybrid electric vehicles, motor vehicles, transportation and packaging, etc., and can solve problems such as power switching shocks of hybrid electric vehicles

Active Publication Date: 2018-12-28
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method for controlling the engine starting of a hybrid electric vehicle to solve the impact problem during the power switching process of the hybrid electric vehicle

Method used

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  • Hybrid electric vehicle and engine start control method thereof
  • Hybrid electric vehicle and engine start control method thereof
  • Hybrid electric vehicle and engine start control method thereof

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Embodiment Construction

[0050]The invention discloses an engine starting control method of a hybrid electric vehicle, which solves the impact problem during the power switching process of the hybrid electric vehicle.

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0052] Such as figure 1 as shown, figure 1 A schematic diagram of the layout structure of the power system of the engine start control method of the hybrid electric vehicle provided by the present invention; figure 2 It is a control flow diagram of speed synchroniza...

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Abstract

The invention provides an engine starting control method of a hybrid electric vehicle, Hybrid electric vehicles operate in pure electric mode, when power is required to start that engine due to an external environment or lack of power, and when it is necessary to shift the double-clutch gearbox, In order to avoid the impact of engine startup and gear shifting, at the same time, As that electric motor is close to a predetermined position in a sliding state by an engine clutch, and the first clutch and the second clutch in the double clutch gearbox are in a sliding wear state when the gear position of the double clutch gearbox is switched, and the engine clutch and the double clutch gearbox are simultaneously sliding worn to absorb the impact, thereby solving the impact problem in the powerswitching process of the hybrid electric vehicle. The invention also provides a hybrid electric vehicle.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, and more specifically, relates to a hybrid electric vehicle and an engine startup control method thereof. Background technique [0002] With the depletion of renewable resources, in order to reduce energy consumption and pollution, the design and development of energy-saving plug-in hybrid electric vehicles and other new energy vehicles have attracted more and more attention from the world's major automobile manufacturers. [0003] The dual-clutch gearbox is widely used in hybrid vehicles because of its rapid shifting, no power interruption, and high power transmission efficiency. When the vehicle needs to switch from pure electric drive mode to hybrid drive mode during driving, the engine needs to be started quickly, and the moment the engine starts, there will be a power shock. There is also a slight power shock when the vehicle is shifting gears. And the control of starting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W20/15B60W30/19B60W10/11B60W10/02B60W10/06B60W10/08
CPCB60W10/02B60W10/06B60W10/08B60W10/11B60W20/00B60W20/15B60W30/19B60W2510/0638B60W2510/081B60W2510/1005B60W2510/104B60W2710/02B60W2710/0666B60W2710/083B60W2710/1005Y02T10/62
Inventor 罗荣华翟钧蒲斌熊忠林林富
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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