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Damping control method and device for hybrid electric vehicle

A technology of a hybrid vehicle and a control method, applied in the field of vehicles, can solve the problems of high mass and high vehicle cost, and achieve the effects of reducing quality, reducing fuel consumption, and reducing torque fluctuations

Active Publication Date: 2022-05-31
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a shock absorption control method and device for a hybrid vehicle, so as to overcome the problems in the prior art that the hybrid vehicle has high cost and high mass due to cylinder deactivation technology

Method used

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  • Damping control method and device for hybrid electric vehicle
  • Damping control method and device for hybrid electric vehicle
  • Damping control method and device for hybrid electric vehicle

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Embodiment Construction

[0058] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0059] Referring to FIG. 1, it shows a step flow of an embodiment of a shock absorption control method for a hybrid vehicle of the present application

[0060] Step 101, according to the current operating conditions of the engine, determine whether the vehicle meets the torque compensation conditions. Among them, as shown in Figure 2

[0061] The technical scheme proposed by the present invention realizes the control of the compensation motor through the controller 7. Specifically, when the vehicle

[0063] Exemplarily, the state information includes the current charge of the energy storage element. When the current power of the energy storage element is greater than the preset

[0066] The compensation motor reduces the torque fluctuation generated by the vehicle when the engine is deactivated by outputting the above-mentioned alte...

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Abstract

The present invention provides a shock absorption control method and device for a hybrid vehicle. The method includes: determining whether the vehicle satisfies the torque compensation condition according to the current working condition of the engine; Status information, to judge whether the compensation start condition is met; if the compensation start condition is met, use the preset strategy to perform torque compensation operation on the vehicle through the compensation motor and the energy storage element. Therefore, using a supercapacitor or a lithium battery as the energy storage element reduces the quality of the vehicle and increases the charge and discharge rate. Transient and steady state compensation of torque, reducing torque fluctuation, improving NVH performance; reducing fuel consumption and improving drivability.

Description

Damping control method and device for hybrid vehicle technical field [0001] The present invention relates to the technical field of vehicles, and in particular, to a method and device for damping control of a hybrid vehicle. Background technique Energy saving and emission reduction are the main research directions in the field of vehicle technology. In order to reasonably reduce the loss of engine pumping, improve the High vehicle economy, so as to achieve the purpose of energy saving and emission reduction, usually the cylinder deactivation technology of the engine is used for multiple cylinders to make the engine run. operate under optimal economic conditions. Hybrid vehicles can recover and store engine energy and use it as electrical energy It can make the engine run in the best fuel economy area and improve the thermal efficiency. [0003] However, the cylinder deactivation technology reduces the cylinder deactivation operation area, thereby avoiding the problem ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/00B60W10/06B60W10/08B60W10/26
CPCB60W20/00B60W10/06B60W10/08B60W10/26Y02T10/40Y02T10/62
Inventor 桂凤云赵亮崔亚彬翟若愚李明建王晓艳郑长亮闫晨户占山角田宏
Owner GREAT WALL MOTOR CO LTD