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Method and system for engine starting

一种发动机起动、发动机的技术，应用在发动机的起动、发动机用电动机起动、发动机元件等方向，能够解决难以预测等问题，达到降低可能性的效果

Pending Publication Date: 2021-08-20
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While it may be desirable to start the engine via the BISG each time the engine is started, it may be difficult to predict whether the BISG will have sufficient torque capacity to start the engine each time the engine is requested to start

Method used

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  • Method and system for engine starting
  • Method and system for engine starting
  • Method and system for engine starting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] This instruction is concerned with operating the engine including the starter and BISG. The engine may only be started via the BISG when the BISG has the torque capacity to start the engine. The engine can be started via the BISG and starter when the BISG alone may have difficulty starting the engine; however, if the battery voltage indicates that the battery does not have the capacity to start the engine via the BISG and starter, the BISG torque can be reduced to increase the torque produced by the starter priority. engine can be figure 1 type shown. engine and BISG can be included in as figure 2 in the drive train of the vehicle shown. An example engine start sequence is at image 3 and Figure 4 shown in . The engine can be based on Figure 5 way to start.

[0015] refer to figure 1 , an internal combustion engine 10 (comprising a plurality of cylinders, figure 1 One of the cylinders shown in ) is controlled by the electronic engine controller 12 . Contr...

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PUM

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Abstract

The invention provides a method and a system for engine starting. Systems and methods for operating a powertrain or driveline including an engine and a belt-driven starter generator are described. In one example, the belt-driven starter generator is used to start the engine unless vehicle operating conditions indicate that the belt-driven starter generator may be difficult to start the engine.

Description

technical field [0001] The present description relates to methods and systems for starting an engine of a vehicle including a belt drive starter generator. The method and system may be particularly useful for vehicles that include a starter motor and a belt drive starter-generator. Background technique [0002] A vehicle may include a starter that selectively engages an engine during engine cranking. The vehicle may also include a belt starter generator (BISG) to charge the vehicle's battery, provide propulsion power to the vehicle, and start the vehicle's engine. The BISG can spin the engine during cranking, and it can spin the engine while producing less noise, vibration, and harshness than a starter. However, due to belt slippage, the starter can provide improved engine cranking when cranking the engine at lower ambient temperatures compared to BISG. While it may be desirable to start the engine via the BISG each time the engine is started, it may be difficult to predi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/00
CPCF02N11/0851F02M26/21F02M35/10222F02M26/26F02D41/0055F02D41/0065F02D9/04F01N13/009F01N3/2066F01N2610/02F01N3/2006Y02A50/20Y02T10/12Y02T10/40F01N3/208F01N2900/1602F01N3/021F01N5/025F02N11/006F02N11/04F02N11/0862F02N2200/022F02N2200/061F02N2200/063
Inventor 大卫·卢大卫·汉考克
Owner FORD GLOBAL TECH LLC
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