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Negative wheel slip control systems and methods

A control system and control method technology, applied in the direction of electric braking system, control drive, control device, etc., can solve the problems of inability to coordinate engine torque control, inaccurate control of engine torque output, and control signals that cannot provide quick response, etc.

Active Publication Date: 2014-02-19
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional engine control systems do not control engine torque output as precisely as desired
Moreover, conventional engine control systems do not provide rapid response to control signals, or do not coordinate engine torque control among various devices that affect engine torque output

Method used

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  • Negative wheel slip control systems and methods
  • Negative wheel slip control systems and methods
  • Negative wheel slip control systems and methods

Examples

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Embodiment Construction

[0052] The following description is merely exemplary in nature and in no way is intended to limit the invention, its application or uses. For the sake of clarity, the same reference numbers will be used in the drawings to designate similar elements. As used herein, the phrase "at least one of A, B, and C" should be construed to mean a logical (A or B or C) using a non-exclusive logical "or". It should be understood that various steps within a method may be executed in different order without altering the principles of the present invention.

[0053] 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, and circuits, and / or other suitable components that provide the described functions.

[0054] Negative wheel slip occurs when a vehicle's tires slip relative to the road surface due to negative torque applied at the vehicle's wheels. Eve...

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PUM

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Abstract

An engine control system comprises a derivative module and a slip remediation module. The derivative module determines a mathematical derivative of a driven wheel speed of a vehicle. The slip remediation module, when the mathematical derivative is more negative than a predetermined deceleration, at least one of disables regenerative braking being performed by one or more electric motors, increases an axle torque request, and unlocks a torque converter.

Description

technical field [0001] The present invention relates to internal combustion engines, and more particularly to engine control systems and methods. Background technique [0002] The background description provided herein is for the purpose of generally describing the context of the disclosure. The work of the presently named inventors described in the Background section, and aspects of said description that may not be prior art at the time of filing, are neither expressly nor implicitly admitted to be inconsistent with the present invention current technology. [0003] Internal combustion engines combust an air and fuel mixture within cylinders to drive pistons, the combustion producing drive torque. The air flow into the gasoline engine is regulated by the throttle valve. More specifically, the throttle adjusts throttle area, which increases or decreases air flow into the engine. When the throttle area increases, the air flow into the engine increases. The fuel control s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D29/02
CPCB60W2520/26F02D2200/501F02D2200/1012B60W10/026B60W10/08B60K28/165B60W30/18172B60L3/108B60L7/18B60L15/2009B60L2240/421B60L2240/423B60L2240/441B60L2240/443B60L2240/461B60L2240/465Y02T10/72Y02T10/64B60W10/024
Inventor R·B·杰斯P·A·鲍尔勒C·E·惠特尼J·L·沃尔兴M·L·科奇巴
Owner GM GLOBAL TECH OPERATIONS LLC