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Engine stall preventive method

An engine and power traction technology, which is applied in the field of applying a belt-type motor generator to prevent engine flameout, can solve problems such as insufficient engine speed, and achieve the effect of ensuring personal safety.

Active Publication Date: 2015-03-25
HUA CHUANG AUTOMOBILE INFORMATION TECHN CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The flameout of the engine in non-idling state may occur when the load on the vehicle engine increases and the engine speed is insufficient, such as when driving uphill or downhill in reverse gear

Method used

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0018] Please refer to figure 1 and figure 2 , which are schematic flowcharts (1) and (2) of the method for preventing engine flameout according to the first embodiment of the present invention, which specifically disclose the method for preventing engine flameout according to the first embodiment of the present invention. A belt-driven motor generator (Belt-Driven Starter Generator, BSG) is connected to an engine of a vehicle, and the belt-driven motor generator is connected to the engine for power. The vehicle may be, for example, a gasoline-electric hybrid vehicle, but the present invention is not limited thereto. The belt motor generator has a generator mode and a motor mode. In the power generation mode, the belt motor generator is driven by the engine power to generate electricity; while in the motor mode, the belt m...

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Abstract

An engine stall preventive method is applicable to a vehicle comprising a belt motor generator and an engine; the belt motor generator is in dynamic connection with the engine; the belt motor generator has a power generating mode where the generator is driven by power of the engine to generate electricity and a motor mode where the generator drives the engine to run. The method includes: during running of the engine, determining that the engine is in a non-idle stall mode; if the speed of the engine is less than a low threshold, allowing the engine to enter in a staff preventive mode including switching the belt motor generator to the motor mode; increasing a torque output value of the belt motor generator till the speed of the engine being greater than a high threshold.

Description

technical field [0001] The invention relates to a method for preventing engine flameout, in particular to a method for preventing engine flameout by using a belt type motor generator. Background technique [0002] In order to meet the demands of energy saving and carbon reduction, vehicles equipped with the idling stop system have a mechanism to stop the engine when the vehicle is idling (for example: waiting for traffic lights, traffic jams, roadside pauses, etc. to stop the vehicle for more than three minutes). Restart the engine while driving the vehicle, thereby reducing fuel consumption and avoiding excessive exhaust emissions. Still, for every driver, having the engine stall when it's not idling is something that's not at all desirable. [0003] The flameout of the engine in the non-idling state may occur when the load on the vehicle engine increases and the engine speed is insufficient, such as when driving uphill or downhill in reverse gear. At this time, because t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/08B60W30/18
CPCB60W10/08B60W10/30B60W30/18009B60W2510/081
Inventor 谢丰吉黄银大彭郁文林于崴
Owner HUA CHUANG AUTOMOBILE INFORMATION TECHN CENT
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