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Catalyst temperature control systems and methods for hybrid vehicles

A temperature control system and catalyst technology, which is applied to the electronic control of exhaust treatment devices, engine components, combustion engines, etc., can solve problems such as slow response, heating catalytic converters, etc., so as to reduce emission output and improve vehicle fuel economy. Effect

Active Publication Date: 2014-03-12
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the EHC has a slow response and may not be able to heat the catalytic converter as quickly as needed

Method used

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  • Catalyst temperature control systems and methods for hybrid vehicles
  • Catalyst temperature control systems and methods for hybrid vehicles
  • Catalyst temperature control systems and methods for hybrid vehicles

Examples

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Embodiment Construction

[0039] The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. For purposes of clarity, the same reference numbers have been used in the drawings to identify similar elements. As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or grouped) and memory, combinational logic, that executes one or more software or firmware programs circuits, and / or other suitable components that provide the described functionality.

[0040] A catalyst temperature control module according to the present invention determines whether a vehicle start is expected based on the vehicle state. The vehicle state includes, but is not limited to, the locked state of the vehicle door locks, the closed state of the doors and the vehicle trunk, the presence of persons in the vehicle, the detection of a key fob within a predetermined distanc...

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PUM

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Abstract

A catalyst temperature control system of the present disclosure includes a vehicle start anticipation module and an electrically heated catalyst (EHC) control module. The vehicle start anticipation module determines whether a vehicle start is anticipated based on at least one of a plurality of vehicle conditions before an ignition switch is turned on. The EHC control module activates an EHC based on the determination.

Description

technical field [0001] The present invention relates generally to emission control for motor vehicles, and more particularly to catalyst temperature control systems and methods for hybrid vehicles. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the presently named inventors is neither expressly nor implicitly admitted to be contrary to the present invention to the extent that it is described in this Background section, and in respects of which the description may not have constituted prior art at the time of filing. have technology. [0003] Use catalytic converters with internal combustion engines to reduce emissions. Catalytic converters generally work more efficiently at high temperatures. When the engine is started, the catalytic converter may not be effective in removing emissions from the exhaust gas until the catalytic converter reaches an operating tempe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N9/00F01N3/10
CPCF01N2013/023Y02T10/22F01N13/0093F01N2900/104F01N2013/026F01N2900/1602F01N2900/1631F01N3/2026Y02T10/26Y02T10/47F01N9/00F01N2900/12F01N3/101F01N13/0097Y02T10/12Y02T10/40Y02A50/20
Inventor B·N·鲁斯B·斯波恩H·G·桑托索E·V·冈策
Owner GM GLOBAL TECH OPERATIONS LLC