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Control strategy for a hybrid vehicle with a disabled motor

A hybrid electric and vehicle technology, applied in the direction of hybrid vehicles, engine control, arrangement of multiple different prime movers of general power plants, etc., can solve problems such as unsatisfactory customers

Active Publication Date: 2015-03-18
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither method can satisfy customers

Method used

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  • Control strategy for a hybrid vehicle with a disabled motor
  • Control strategy for a hybrid vehicle with a disabled motor
  • Control strategy for a hybrid vehicle with a disabled motor

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Embodiment Construction

[0014] The embodiments of the present disclosure are described herein. However, it should be understood that the disclosed embodiments are only examples, and other embodiments may take various and alternative forms. The drawings are not necessarily drawn to scale; some features may be exaggerated or minimized to show details of specific components. Therefore, the specific structure and functional details disclosed herein are not to be construed as limitations, but merely as a representative basis for teaching those skilled in the art to use the present invention in various ways. Those of ordinary skill in the art will understand that various features shown and described with reference to any one of the drawings can be combined with features shown in one or more other drawings to produce what is not explicitly shown or described. Examples. The combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifica...

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Abstract

A method for controlling an engine in a hybrid electric vehicle according to the present disclosure includes, in response to a drive motor being unavailable, commanding an engine power equal to the lesser of a first and a second power. The first power is sufficient to satisfy a driver wheel torque request at the current engine speed, and the second power corresponds to a maximum engine torque available at a target engine speed, where the target engine speed is selected to attain a desired battery state of charge.

Description

Technical field [0001] The present disclosure relates to a control strategy for a hybrid electric vehicle when its drive motor is not available. Background technique [0002] Hybrid electric vehicles generally include a power train with two power sources that can establish a first power flow path and a second power flow path to the traction wheels of the vehicle. The first power source is an internal combustion engine with a planetary gear set to distribute power to the generator system and vehicle traction wheels through separate power flow paths. The second power source is an electric drive system including a first motor and a second motor that are mainly used as a generator and a drive motor, respectively. The second power source also includes a battery. Batteries are used as energy storage media for generators and motors. [0003] When the power train is operated with the first power source, the engine power is distributed between the two power flow paths by controlling the ...

Claims

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Application Information

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IPC IPC(8): B60W10/06B60W10/08B60W10/26B60W20/00
CPCF02D29/02B60K6/44B60W20/10B60W10/06F02D29/06B60W50/0225B60W20/50
Inventor 乔纳森·安德鲁·布彻邝明朗保罗·斯蒂芬·布赖恩
Owner FORD GLOBAL TECH LLC