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Method and control system for adjusting cam phaser compensation in a hybrid vehicle system

An engine torque, hybrid electric technology, applied in the field of vehicles, can solve the problems of unsure engine available torque, unreasonable delay, etc.

Active Publication Date: 2015-02-25
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the cam phaser can switch from unavailable to available and vice versa almost instantaneously, it will not be possible to determine the actual available torque of the engine for a period of time
This would result in, for example, suboptimal transmission gear selection and / or unreasonable delays in allowing full powertrain turn short

Method used

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  • Method and control system for adjusting cam phaser compensation in a hybrid vehicle system
  • Method and control system for adjusting cam phaser compensation in a hybrid vehicle system
  • Method and control system for adjusting cam phaser compensation in a hybrid vehicle system

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Embodiment Construction

[0015] The following descriptions are exemplary only, rather than limiting the disclosure, application and use thereof. For the sake of clarity, the same reference numerals are used to identify the same parts in the figures. The term module as used herein refers to an Application Specific Integrated Circuit (ASIC), an electronic circuit, processor (shared, dedicated or group) and memory, combinational logic circuit, for executing one or more software or firmware programs, and / or other suitable components capable of providing the described functions. The term standard on-board diagnostic (OBD) drive cycle as used herein refers to a drive cycle in which all systems of the vehicle are diagnosed.

[0016] refer to figure 1 An exemplary hybrid electric vehicle 10 includes an engine 12 and an electric motor 14 for driving a transmission 16 , in particular, the electric motor 14 assists the engine 12 to generate driving torque for driving the transmission 16 . In this way, fuel ef...

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Abstract

A method of regulating a torque output of an internal combustion engine in a hybrid electric vehicle includes determining whether a cam phaser system of the engine is in one of an inactive state and an active state and monitoring at least one engine operating parameter. An engine torque array is selected from a plurality of engine torque arrays based on the one of the inactive state and the active state. An available engine torque is determined based on the engine torque array and the at least one engine operating parameter and the engine is regulated based on the available engine torque.

Description

technical field [0001] The present invention relates to a vehicle, in particular to a method and a control system for adjusting engine output torque of a hybrid vehicle comprising a plurality of control modules. Background technique [0002] Typically, a vehicle includes a number of systems for regulating its overall operation. For example, a vehicle includes a power plant or torque source (such as an internal combustion engine and / or an electric machine) that generates drive torque, an energy storage device (such as a battery pack) that supplies electrical energy, a transmission that distributes drive torque to the driven wheels, and various other kind of system. Each system includes associated control modules that communicate with each other to regulate the operation of the vehicle. [0003] In some vehicle systems, such as hybrid vehicle systems, the engine control module (ECM) and hybrid control module (HCM) are part of a distributed controller system. In order to opt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/00B60W10/06B60W10/08F02D35/00F02D29/00
CPCY02T10/6286B60W20/00B60L2200/26Y02T10/6226B60W2540/10B60L2240/443B60W10/06B60K6/485B60W10/08B60W2510/0657Y02T10/62B60W2710/0666B60W20/15
Inventor D·G·布伦南J·M·凯泽B·R·斯奈德G·J·约克A·M·希尔兹L·G·沃兹尼亚克
Owner GM GLOBAL TECH OPERATIONS LLC
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