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Vehicle regeneration control method and regeneration control system

A regeneration control and vehicle technology, applied in the direction of coolant flow control, electrical control, engine control, etc., can solve the problems of inability to distinguish between normal driving regeneration and parking regeneration, inability to accurately reflect carbon load, excessive combustion, etc.

Active Publication Date: 2021-10-15
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current policy vehicle controller cannot distinguish between normal driving regeneration and parking regeneration, and the initialization value is the same value
This solution cannot accurately reflect the real carbon load after normal driving regeneration and parking regeneration, which will lead to the risk of excessive combustion in the next regeneration process

Method used

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  • Vehicle regeneration control method and regeneration control system
  • Vehicle regeneration control method and regeneration control system
  • Vehicle regeneration control method and regeneration control system

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Embodiment Construction

[0040] Parking regeneration is a supplement to normal driving regeneration. Only when the normal driving regeneration cannot meet the requirements due to the aging of the customer's car (does not affect driving), when the carbon accumulation reaches a certain level (the increase in back pressure will affect Fuel consumption, drivability) and remind customers to clean up carbon. The inventors found that when the vehicle is being regenerated, the carbon load after regeneration is different due to the different termination conditions of normal driving regeneration and parking regeneration. For example, normal driving regeneration takes the carbon load below a certain value as the condition for the end of regeneration, while parking regeneration takes the regeneration time reaching a certain value as the time for the end of regeneration. Sometimes we need to do multiple park regenerations. In this way, the carbon load after parking regeneration is not the same value as the carbon...

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Abstract

The invention provides a vehicle regeneration control method and regeneration control system, belonging to the field of vehicle control. The vehicle regeneration control method of the present invention includes: after the parking regeneration is completed, the initial value of the carbon load is calibrated to be higher than the first threshold value of the experimental experience value, and the experimental experience value is determined by carrying out the actual road parking of the vehicle. The vehicle regeneration test is calibrated; the vehicle re-accumulates the carbon load with the first threshold as the initial value. The present invention also provides a parking regeneration control system for implementing the above regeneration control method of the vehicle. The vehicle regeneration control method and control system of the present invention can ensure that the carbon load of the model is greater than the actual carbon load after the particle filter is parked and regenerated, and avoid burning out the particle filter due to inaccurate carbon load models in fuel cut-off conditions cause excessive emissions.

Description

technical field [0001] The invention belongs to the field of vehicle control, in particular to a vehicle regeneration control method and regeneration control system. Background technique [0002] Particulate matter emissions from gasoline or diesel engines are one of the pollutants that need to be controlled in vehicle emissions. Especially for direct injection engines, the recirculated particulate matter emissions are ten times higher than port injection engines. The national six-stage emission regulations include the quality and quantity of particulate matter into the scope of control and supervision. In order to reduce the emission of particulate matter, it is necessary to introduce a particulate filter from the perspective of post-emission treatment, such as a gasoline engine particulate filter GPF (Gasoline Particle Filter) or Diesel Particle Filter DPF (Diesel Particle Filter). After the particle filter is installed in the vehicle exhaust system, about 90% of the car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N9/00F02D41/02F02D41/14F01P7/02F01P5/02
CPCF01N9/002F01P5/02F01P7/02F02D41/024F02D41/1475Y02T10/40
Inventor 张清茂任向飞武向科王江伟李进陈矗
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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