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Control method and device for hybrid power vehicle

The technology of a hybrid electric vehicle and a control method, which is applied in the field of a hybrid electric vehicle control method and device, can solve the problems of long shift time and poor ride comfort, and achieve the effects of reducing shift time and improving ride comfort

Active Publication Date: 2017-07-25
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of shifting gears, vehicles that traditionally use DCT often have problems such as long shifting time and poor ride comfort.

Method used

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  • Control method and device for hybrid power vehicle
  • Control method and device for hybrid power vehicle
  • Control method and device for hybrid power vehicle

Examples

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Embodiment Construction

[0032] In the process of shifting gears, existing DCT vehicles often have the problems of long shifting time and poor ride comfort. For example, when the driver depresses the opening of the accelerator pedal greater than a certain value, according to the shift map, it is calculated that there is currently a demand for coaxial downshifting. Taking the shift from 6th gear to 4th gear as an example, the gear position is first lowered to 5th gear, and then the gear position is lowered to 4th gear, which has the problem of long shift time. Another example is that the driver frequently steps on the accelerator, and the transmission control unit (TCU) frequently switches between stepping on the accelerator for upshifts, no-throttle upshifts, stepping on the accelerator for downshifts, and no-throttle downshifts. Impact, resulting in poor ride comfort of the vehicle.

[0033] In the embodiment of the present invention, when the vehicle has a coaxial downshift request, or receives oth...

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PUM

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Abstract

The invention discloses a control method and device for a hybrid power vehicle. The control method includes the steps of obtaining a current working state of the vehicle, and controlling a driving motor to provide increased or decreased torque which is required for switching to a target gear when the vehicle currently receives a coaxial downshift request or receives other operation requests of a driver in the gear shifting process. By means of the control method and device, the gear shifting time of the DCT vehicle can be shortened, and smoothness of the vehicle in the gear shifting process is improved.

Description

technical field [0001] The present invention relates to the field of vehicle control, in particular to a hybrid vehicle control method and device. Background technique [0002] Hybrid Vehicle (Hybrid Vehicle) refers to a vehicle whose drive system is composed of multiple single drive systems that can operate simultaneously. The so-called hybrid vehicle generally refers to a hybrid electric vehicle (Hybrid Electric Vehicle, HEV), that is, a traditional internal combustion engine and an electric motor are used as power sources. [0003] Dual Clutch Transmission (DCT) has uninterrupted power and low fuel consumption during the shifting process, and has become the preferred automatic transmission for current vehicles. In the process of shifting gears, vehicles that traditionally adopt DCT often have problems such as long shifting time and poor ride comfort. Contents of the invention [0004] The embodiments of the present invention solve the problem of how to reduce the shif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/08B60W10/10B60W10/26B60W30/19
CPCB60W10/08B60W10/10B60W10/26B60W30/19B60W2710/083B60W2710/105
Inventor 孙贤安仇杰
Owner SAIC MOTOR
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