Series mode combustion efficiency control method for hybrid electric vehicle and storage medium

A technology of combustion efficiency and hybrid vehicles, applied in the field of vehicle control, can solve problems such as engine knocking, reduction of engine combustion efficiency, deterioration of engine room temperature field, etc., to ensure constant output power, eliminate knocking phenomenon, and avoid fuel economy Sexual Aggravation Effects

Inactive Publication Date: 2020-12-01
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology

If the vehicle runs in a high-temperature environment for a long time, the temperature of the engine room will rise, and the water temperature and intake air temperature of the engine will increase. Since the engine series power generation mode of hybrid vehicles generally operates in the best efficiency zone to ensure the best economy , but in the optimum efficiency zone, the engine is prone to knocking at high temperatures, which reduces the combustion efficiency of the engine, resulting in deterioration of fuel consumption and emissions. At the same time, it will cause deterioration of the cabin temperature field and affect the safety of the vehicle

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  • Series mode combustion efficiency control method for hybrid electric vehicle and storage medium
  • Series mode combustion efficiency control method for hybrid electric vehicle and storage medium

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[0016] The following specific embodiments are used to further describe the technical solution of the claims of the present invention in detail, so that those skilled in the art can understand the claims more clearly. The protection scope of the present invention is not limited to the following specific examples. The protection scope of the present invention includes the technical solution of the claims of the present invention made by those skilled in the art and is different from the following specific embodiments.

[0017] Such as Figure 1~2 As shown in Fig. 1, a method for controlling the combustion efficiency of a hybrid vehicle in series mode, first of all, it is necessary to confirm that the engine and the motor are running in series, because when the engine and the motor are not in series running, the engine must be connected to the power output shaft, while maintaining the target output power Under the same conditions, the engine speed is limited by the speed ratio a...

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Abstract

The invention discloses a series mode combustion efficiency control method for a hybrid electric vehicle and a storage medium. When the whole vehicle is in a high-temperature series control mode, thetarget output power is kept unchanged, and the engine speed is increased and the engine output torque is reduced, so that the combustion efficiency reaches the optimal combustion efficiency under thecurrent working condition. The knocking phenomenon of the engine is eliminated by increasing the rotating speed of the engine and reducing the output torque of the engine, so that the combustion efficiency of the engine reaches the optimal combustion efficiency under the current working condition, the output power is kept unchanged, the knocking phenomenon of the engine is eliminated, and deterioration of fuel economy is avoided.

Description

technical field [0001] The invention relates to the technical field of automobile control, and specifically refers to a method for controlling the combustion efficiency of a series mode of a hybrid automobile and a storage medium. Background technique [0002] With people's demand for lower fuel consumption and environmental protection, the market share of hybrid vehicles is increasing. Since the motor, engine and gearbox are arranged in the cabin of the hybrid car at the same time, the layout of the cabin is very compact, and the heat dissipation conditions are worse than those of traditional cars. If the vehicle runs in a high-temperature environment for a long time, the temperature of the engine room will rise, and the water temperature and intake air temperature of the engine will increase. Since the engine series power generation mode of hybrid vehicles generally operates in the best efficiency zone to ensure the best economy , but in the optimum efficiency zone, the e...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/15
CPCB60W2510/0638B60W2510/0657B60W20/15
Inventor 陈龙庹汉郧王静波张翼
Owner DONGFENG MOTOR CORP HUBEI
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