System and method for controlling engine torque
A control system and engine technology, applied in engine control, machine/engine, electrical control, etc., can solve problems such as inability to precisely control engine torque output, inability to coordinate engine torque control, etc.
Inactive Publication Date: 2011-05-25
GM GLOBAL TECH OPERATIONS LLC
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Problems solved by technology
However, conventional engine control systems cannot precisely control engine torque output as required
In addition, conventional engine control systems do not provide rapid response to control signals, nor do they coordinate engine torque control among the various devices that affect engine torque output
Method used
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[0048] The following description is merely exemplary in nature and is not intended to limit the invention, its application or uses in any way. For purposes of clarity, the same reference numbers will be used in the drawings to refer to like elements. As used herein, the phrase "at least one of A, B, and C" should be construed to mean the logical "A or B or C" using a non-exclusive logical "or". It should be understood that steps within a method may be executed in different order without altering the principles of the present invention.
[0049] As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared processor, dedicated processor, or group processor) and memory, a combination of Logic circuits and / or other suitable components that provide the described functionality.
[0050]The torque control system may control the torque output of the engine based on a power request from the driver (eg, accel...
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The invention relates to a system and a method for controlling engine torque. An engine control system for a vehicle includes a power request determination module, a desired speed determination module, and a torque control module. The power request determination module determines a power request for an engine based on a request from a driver of the vehicle and a speed of the vehicle. The desired speed determination module determines a desired speed of the engine based on a speed of a turbine in a torque converter of the engine, a state of a clutch in the torque converter, and one of the power request, a first amount of clutch slip, and a second amount of clutch slip. The torque control module determines a desired engine torque based on the desired engine speed and the power request and controls torque output of the engine based on the desired engine torque.
Description
technical field [0001] This invention relates to internal combustion engines, and more particularly to torque control systems. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. A portion of the inventor's work is described in the Background section, and aspects of this section, and aspects of this description that were not otherwise prior art at the time of filing the application, are neither expressly nor impliedly admitted to be prior art that would destroy the present invention . [0003] Internal combustion engines combust an air and fuel mixture within cylinders to drive pistons, which produce drive torque. Air flow into the gasoline engine is regulated via the throttle valve. More specifically, the throttle adjusts throttle area, which increases or decreases air flow into the engine. As the throttle area increases, the air flow into the engine increases. A fuel control...
Claims
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Login to View More IPC IPC(8): F02D41/04F02D43/00
CPCF02D2250/18B60W10/06F02D41/0205F16H2059/385B60W2510/1015F02D2200/501B60W2710/0666F02D41/022B60W30/1882B60W2510/0241F02D41/1497F02D2200/602B60W2710/0644
InventorM·利夫希茨J·M·凯泽R·W·范迪彭
OwnerGM GLOBAL TECH OPERATIONS LLC