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A system used to alert the driver that the powertrain is about to be activated

A driver, power source technology used in the field of systems used to alert the driver that the power system is about to start

Inactive Publication Date: 2012-02-08
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the driver may not be aware that the need for additional power will cause the engine to start

Method used

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  • A system used to alert the driver that the powertrain is about to be activated
  • A system used to alert the driver that the powertrain is about to be activated
  • A system used to alert the driver that the powertrain is about to be activated

Examples

Experimental program
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Embodiment Construction

[0017] The accelerator pedal may provide an effort bump (eg, increased pedal effort) during pedal travel. The force shock represents the effective battery propulsion power limit. A powertrain control system provides battery propulsion for pedaling ahead of force impact. However, battery propulsion can be susceptible to ignoring conditions such as low state of charge of the battery and low temperature of the engine. A powertrain control system can be combined with battery propulsion to provide engine propulsion for pedal travel on top of force shocks.

[0018] Accelerator pedal effort can be fixed or varied by, for example, electronic feedback. If the accelerator pedal force is fixed, the pedal force may be the same or different before and after the force impact. If the accelerator pedal effort is varied, the relationship of pedal effort effort and offset to pedal rotation may be programmable. In addition, the driver can select the characteristics of the active shocks, for ...

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PUM

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Abstract

A method is disclosed in which an accelerator pedal 22 is used to provide feedback to a driver of a vehicle 10 indicating that an engine 14 is about to be started. The feedback is associated with a threshold position of the accelerator pedal 22. The threshold position may be fixed and a pedal mapping curve is fit to pass through the threshold position or the threshold position may vary and depend on a minimum of the motive power capacity of a battery 16 and an activation power threshold of the engine 14.

Description

technical field [0001] The present invention relates to a system for alerting the driver that a powertrain is about to be activated. Background technique [0002] A hybrid electric vehicle has an engine and a traction battery that can be an internal combustion engine or a hydrogen fuel cell. The traction battery and engine provide the power to move the vehicle. In some cases, the traction battery is the primary power source for the vehicle. For example, a traction battery can be dedicated to providing power to support low- to medium-speed driving. In other cases, power from the traction battery may be supplemented with power from the engine if the driver's demand for power exceeds the capacity of the traction battery. For example, traction batteries and engines provide power to support high-speed driving. [0003] Drivers of hybrid electric vehicles will want to drive only in electric mode. However, the driver may not be aware that the need for additional power will ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D11/02B60K26/02B60L50/16
CPCB60W2510/244B60W2510/0638B60L2240/441B60K26/021G01D3/066B60W2540/103B60W50/16B60W10/06G01D7/007B60W20/00Y10S903/904Y02T10/48Y02T10/40B60W20/50
Inventor 威廉·大卫·特莱汉迈克尔·保罗·林德保尔
Owner FORD GLOBAL TECH LLC