Hybrid electric vehicle engine sliding friction starting control method and device

A technology of a hybrid electric vehicle and a control method, applied in the field of vehicles, can solve the problems of complex control and long implementation period, and achieve the effect of simplifying the control process and shortening the control period

Inactive Publication Date: 2015-08-12
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of related technologies are that the realization period is long and the control is complicated

Method used

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  • Hybrid electric vehicle engine sliding friction starting control method and device
  • Hybrid electric vehicle engine sliding friction starting control method and device
  • Hybrid electric vehicle engine sliding friction starting control method and device

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Embodiment Construction

[0026]The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] The control method and device for engine slipping start of a hybrid electric vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0028] according to figure 1 As an example, the hybrid vehicle of the embodiment of the present invention may include an engine E, a clutch C, a motor M and a gearbox T, wherein the engine E is connected to the motor M through the clutch C, and the engine E and the motor M may ...

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Abstract

The invention discloses a hybrid electric vehicle engine sliding friction starting control method and a device. The method comprises the following steps: a rotation speed of a gearbox input shaft is acquired, and if the rotation speed of the gearbox input shaft is larger than an idle speed of the engine, a clutch is controlled to enter a first rapid combination stage; after the first rapid combination stage of the clutch is finished, the clutch is controlled to enter a slow combination stage; whether a brake vacuum pump signal or an air conditioner enabling demand signal is received is judged; if yes, a torque instruction of the motor is generated according to demand torque of the motor, and when the real-time rotation speed of the motor is larger than the idle speed of the engine, the clutch is controlled to be separated quickly; and if not, the torque instruction of the motor is generated according to the demand torque of the motor, and when the real-time rotation speed of the engine is larger than the idle speed of the engine, the engine is controlled to fire and the clutch is controlled to enter a second quick combination stage until complete combination. Different modes are adopted in different working conditions to control the engine and the clutch, and the operation is simple and reliable.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a control method for engine slipping of a hybrid vehicle and a control device for engine sliding of a hybrid vehicle. Background technique [0002] Idling start-stop is one of the important ways for hybrid vehicles to achieve energy saving and emission reduction. When the engine is not required to operate, shut down the engine to avoid fuel consumption and emissions when the engine is idling; when the engine is required to drive, quickly drive the engine to idle speed , and then inject fuel to ignite, avoiding the shortcomings of high fuel consumption and poor emission when the engine is running below idle speed. [0003] In related technologies, the following methods are usually used to control the engine start, that is, firstly control the motor to unload, and move the gear to neutral, then combine the clutch, drive the engine to idle speed, fuel injection and ignition quickly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/06B60W10/02B60W10/08B60W30/18
CPCB60W10/02B60W10/06B60W10/08B60W20/40B60W30/18018B60W2510/1015B60W2710/021B60W2710/0644B60W2710/083Y02T10/62
Inventor 杨伟斌
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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