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Shifting method of hybrid vehicle and hybrid vehicle

A technology of a hybrid vehicle and a gear shifting method, which is applied to hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of shifting shock, long shifting time, poor comfort, etc., and reduce the degree of damage. , The effect of shortening the shift time and improving the service life

Inactive Publication Date: 2018-04-10
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. The clutch will be worn during the separation and combination stages;
[0007] 4. If the shifting time is long, the vehicle will have shifting impact and the comfort will be poor.

Method used

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  • Shifting method of hybrid vehicle and hybrid vehicle
  • Shifting method of hybrid vehicle and hybrid vehicle

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Embodiment Construction

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0024] figure 1 A schematic diagram of the power system of a hybrid vehicle. As shown in Figure 1, the power system of a hybrid vehicle includes an engine 10, a drive motor 20, and a gearbox 40, wherein a clutch 30 is provided between the engine 10 and the drive motor 20, and the vehicle power can be released by the separation and engagement of the clutch 30. The system switches from pure electric mode to hybrid mode. The battery...

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Abstract

The invention belongs to the technical field of hybrid vehicles and particularly relates to a shifting method of a hybrid vehicle and the hybrid vehicle. The shifting method comprises the following steps of resetting torque of a power system of the vehicle; after the torque is reset, pulling back a previous gear; when the pure electric mode of the power system of the vehicle is shifted into a hybrid power mode in which an engine and a drive motor are connected by a clutch, adjusting the rotation speed of the engine and / or the drive motor to allow the rotation speed of the engine and / or the drive motor to be matched with the speed ratio of a gear box of the vehicle; putting into gear, and finishing a shift process. By the usage of the shifting method of the hybrid vehicle and the hybrid vehicle, and when the vehicle shifts, when the vehicle shifts, the clutch does not need to be separated, so that the shifting time can be effectively shortened, the comfort of driving can be improved,and the labor intensity of a driver can be reduced. At the same time, the damage to the clutch is reduced, and the service life of the clutch is prolonged.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, and in particular relates to a gear shifting method of a hybrid electric vehicle and the hybrid electric vehicle. Background technique [0002] At present, there are more and more new energy buses represented by single-shaft parallel hybrid systems on the market. Compared with traditional vehicles, the structural difference of new energy vehicles is that a driving motor is added between the clutch and the gearbox. Traditional vehicles need to step on the clutch when shifting gears, and then release the clutch after the shifting is completed. [0003] The gear shifting method of the sub-clutch that existing vehicles adopt mainly has the following disadvantages: [0004] 1. When the gear is removed, the driver needs to step on the clutch, and then release the clutch after the gear is engaged, which increases the driver's driving fatigue; [0005] 2. The shift time mainly depends ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/10B60W10/06B60W10/08B60W20/30B60W20/40
CPCB60W10/06B60W10/08B60W10/10B60W20/30B60W20/40B60W2710/021B60W2710/0644B60W2710/081B60W2710/1005Y02T10/62
Inventor 李强王彦波吴学强时艳茹韩福强
Owner WEICHAI POWER CO LTD