HCU and clutch work mode switching control method

A technology of working mode and control method, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc.

Active Publication Date: 2017-06-16
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the invention is how to ensure sufficient powe

Method used

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  • HCU and clutch work mode switching control method
  • HCU and clutch work mode switching control method
  • HCU and clutch work mode switching control method

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Embodiment Construction

[0176] The clutch has three working modes: pure electric drive mode, series mode and parallel mode. At present, the parallel operation mode switching method of the clutch is to control the clutch to enter the parallel operation mode only when a large vehicle driving demand torque is required for rapid acceleration or climbing, or the required vehicle driving demand torque increases rapidly. However, the above-mentioned scheme of switching the working mode of the clutch is likely to cause insufficient power of the vehicle, affect driving safety, and also cause resonance and high noise.

[0177] In order to solve the above problems, the embodiment of the present invention provides a control method for HCU and clutch working mode switching. If the clutch is currently in the non-parallel working mode, when it is determined that the clutch is in the parallel mode, the power source can provide a larger driving torque, or in When the efficiency of the power source and the noise and v...

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Abstract

The invention provides an HCU and clutch work mode switching control method. The method comprises the steps of when a clutch is in the non-parallel work mode, determining whether the work conditions of an engine and a drive motor meet a first preset condition; when the work conditions of the engine and the drive motor meet a first preset condition, determining that a power source cannot meet the torque needed by a driver in the previous condition, if the clutch is in the parallel work condition, determining whether the power source can be made to provide a bigger drive torque, or determining whether the power source efficiency and the automobile noise and vibration conditions meet a second preset condition; when it is determined that the clutch is in the parallel work mode, the power source can provide a bigger drive torque, or the power source efficiency and the noise and vibration conditions meet the second condition, switching the clutch to the parallel work mode. The use of the technical scheme can make sure that the automobile has full power, enhances the driving safety, avoid the occurrence of resonance, and reduces noise.

Description

technical field [0001] The invention relates to the field of clutch control, in particular to a control method for HCU and clutch working mode switching. Background technique [0002] Cars are playing an increasingly important role in modern society and have become an indispensable part of most people's daily lives. Under the background of advocating environmental protection, pure electric vehicles and hybrid electric vehicles (Hybrid Electric Vehicle, HEV) emerge at the historic moment. When the hybrid vehicle is running, the clutch has three working modes: pure electric drive mode, series mode and parallel mode. Among them: pure electric drive mode, only the clutch corresponding to the motor can be closed, so only the motor provides power for the car. In series mode, the engine drives the Integrated Starter and Generator (ISG) motor to generate electricity, and the electric energy generated is sent to the drive motor through the motor controller, and the drive motor gene...

Claims

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Application Information

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IPC IPC(8): B60W10/02B60W10/06B60W10/08B60W20/40
CPCB60W10/02B60W10/06B60W10/08B60W20/40B60W2510/0638B60W2510/083Y02T10/62
Inventor 孙俊密刚刚邱国茂赵沂胡瑾瑜王伦珍
Owner SAIC MOTOR
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