Method and apparatus for monitoring unintended vehicle motion

An unexpected, vehicular technology used in power units, controls, transportation, and packaging to address issues such as vehicle damage

Active Publication Date: 2015-06-03
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

False Positive Torque Safety Fault Detection Could Cause Unnecessary Vehicle Damage

Method used

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  • Method and apparatus for monitoring unintended vehicle motion
  • Method and apparatus for monitoring unintended vehicle motion
  • Method and apparatus for monitoring unintended vehicle motion

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Embodiment Construction

[0069] Referring now to the drawings, which are shown for purposes of illustrating certain exemplary embodiments only and not for purposes of limitation, figure 1 Vehicle 100 is shown including powertrain system 20 coupled to driveline 60 and controlled by control system 10 . The powertrain system 20 employs a plurality of torque-generative devices, including an internal combustion engine (engine) 40 and respective first and second electric torque machines 35 and 36 configured to drive Transmission 50 operating in one of a plurality of selectable fixed gears and an electrically variable mode transmits propulsion torque to driveline 60 . The concepts described herein can be applied to other powertrain configurations, including powertrain systems using a single torque-generative device and powertrain systems using multiple torque-generative devices, including having a single electric torque machine arranged in series with the engine and transmission powertrain configuration. L...

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Abstract

A powertrain system is configured to transfer propulsion torque to a driveline of a vehicle. A method for controlling the powertrain system includes determining a magnitude of unintended vehicle motion based upon a difference between a change in actual vehicle acceleration and a change in an operator-intended vehicle acceleration. Propulsion torque to the driveline is limited when a fault associated with unintended vehicle motion is detected and the magnitude of unintended vehicle motion is less than a predetermined first threshold.

Description

technical field [0001] The present disclosure relates to controls for a vehicle powertrain system. Background technique [0002] The statements in this section merely provide background information related to the present disclosure. Accordingly, these statements are not intended to constitute an admission of prior art. [0003] A potential torque safety failure may result in a motion hazard in which unintended vehicle motion deviates from a desired level by an order greater than a threshold level of vehicle acceleration. Known vehicle control systems employ protection against unintended vehicle motion for fault detection and correction, including removal of propulsion from the vehicle's drive axles. False positive torque safety fault detection could result in unnecessary vehicle damage. Contents of the invention [0004] A powertrain system is configured to transmit propulsion torque to a driveline of a vehicle. A method for controlling a powertrain system includes det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/04B60W40/107B60W40/109
CPCB60W10/06B60W10/08B60W20/40B60W30/188B60W2520/105B60K6/445B60W50/038B60W2510/0657B60W2510/083B60W2530/20B60W20/50Y02T10/62F16H59/14F16H61/12F16H2059/147F16H2059/148F16H59/48
Inventor J. J. 朴M. A. 费尔纳基亚A. W. 小道恩斯A. C. 鲍尔斯
Owner GM GLOBAL TECH OPERATIONS LLC
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