Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Catalyst heating control method for hybrid electric vehicles

A hybrid electric vehicle, heating control technology, applied in the direction of hybrid electric vehicles, motor vehicles, transportation and packaging, etc., can solve the problem of poor emission effect of vehicles

Active Publication Date: 2020-02-07
CHONGQING CHANGAN AUTOMOBILE CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different from conventional fuel vehicles, plug-in strong hybrid electric vehicles have frequent engine start and stop conditions during driving, and the temperature of the catalyst is also affected by this, resulting in poor emission effects of the vehicle

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst heating control method for hybrid electric vehicles
  • Catalyst heating control method for hybrid electric vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The invention discloses a method for controlling the heating of a hybrid vehicle catalyst, which reduces the influence of the hybrid vehicle on the catalyst temperature during driving.

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0031] Such as figure 1 with figure 2 As shown, figure 1 It is a schematic diagram of the power system structure of the hybrid electric vehicle catalyst heating control method provided by the present invention; figure 2 It is a control flow chart of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a catalyst heating control method for a hybrid electric vehicle. In the operational process of the vehicle, a coupling mechanism clutch is controlled to be in an open state whenthe catalyst temperature is low and the catalyst needs to be heated in the condition that an engine needs to be stared in order to ensure the catalytic temperature of the catalyst, so that the engineis disconnected from a follow-up power system, the engine operates individually to only heat the catalyst without accessing subsequent power transmission after the engine is started, and the workingcondition of the vehicle is not influenced by the heating load of the condition that the catalyst is heated by the engine. The heating efficiency of the catalyst is improved, and the influence of excessively low catalyst temperature on vehicle discharge is reduced.

Description

Technical field [0001] The invention relates to the technical field of hybrid electric vehicles, and more specifically, to a method for controlling heating of a hybrid electric vehicle catalyst. Background technique [0002] The increasingly serious problems of energy crisis, environmental pollution and greenhouse effect have made new energy vehicles an inevitable trend in the transformation of the automotive industry. Hybrid electric vehicles have the advantages of high efficiency, energy saving, long driving range and strong power, and have received extensive attention from scientific research institutions and enterprises. Among them, a single-motor series-parallel plug-in strong hybrid vehicle that can be driven independently by an engine or a motor is an important branch of new energy vehicles. [0003] Heating the catalyst to make it work at the ideal temperature is very important for the engine to meet the increasingly stringent emission regulations. After the conventional ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/16B60W10/06B60W10/08B60W10/10B60W10/02
CPCB60W10/02B60W10/06B60W10/08B60W10/10B60W20/16B60W2510/0604B60W2510/30B60W2710/021B60W2710/06B60W2710/083B60W2710/10Y02T10/62
Inventor 严泽宇刘杰田学勇杨官龙裴鹏宇
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com