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Hybrid cold start strategy using electrically heated catalyst

A catalyst and cold start technology, which is applied in the direction of engine electric motor start, engine start, hybrid vehicles, etc., can solve the problems of preheating and inability to provide heating elements, etc.

Active Publication Date: 2013-12-25
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The 12 volt electrical system on most vehicles does not provide enough heat to preheat the heating elements quickly enough

Method used

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  • Hybrid cold start strategy using electrically heated catalyst
  • Hybrid cold start strategy using electrically heated catalyst
  • Hybrid cold start strategy using electrically heated catalyst

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Embodiment Construction

[0024] The following description is merely exemplary in nature and is not intended to limit the content, application or use of the present disclosure. For clarity of illustration, the same reference numerals are used in the figures to designate similar elements. As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), circuit, processor (common, dedicated, or group) and memory, combinational logic, and / or other Appropriate components that provide the required functionality.

[0025] now refer to figure 1 , a hybrid vehicle 10 includes an internal combustion engine 12 having a plurality of cylinders 14 and an electric motor 16 . The engine 12 is connected to an output shaft 18 that provides rotational power to a transmission 20 . A generator 22 is driven by the engine 12 and provides charging current to a rechargeable battery 24 . The electric motor 16 converts power from the battery 24 into mechanical power. This mechanical power is a...

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Abstract

A method of operating an engine control system includes generating an engine start signal, determining whether a cold start condition exists, energizing an electrically heated catalyst based on the cold start condition, determining the temperature of the electrically heated catalyst and selectively starting an engine based on the engine start signal and the electrically heated catalyst temperature.

Description

technical field [0001] The present invention relates to improved emissions control, and more particularly to systems and methods for starting an internal combustion engine in a hybrid strategy. Background technique [0002] The statements in this section merely provide background information related to the present invention and may not constitute prior art. [0003] A hybrid vehicle includes an internal combustion engine and an electric motor to provide drive to the vehicle. Hybrid vehicles include series hybrids and parallel hybrids. In a series hybrid, the engine is set to operate the engine that produces the driving power of the vehicle. In a parallel hybrid, the electric motor and engine can drive the vehicle individually or together, with the engine additionally charging the power source (battery) for the electric motor. [0004] Hybrid vehicles tend to improve fuel efficiency and reduce vehicle emissions by utilizing only the electric motor while the vehicle is idli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/00B60K6/24
CPCF01N3/2013Y02T10/6239B60W30/192B60W2550/12F02D2200/0802B60K6/445F01N2013/026F02D41/0235B60W20/00B60W2510/0676F02D41/064F01N13/04B60L2240/445F01N2240/16F02N11/0818F01N13/0097F01N13/011B60W2555/20Y02T10/62B60W20/15B60W2710/0688B60W2510/24B60W10/30
Inventor E·V·贡泽F·阿门特H·G·桑托索
Owner GM GLOBAL TECH OPERATIONS LLC