Vehicle control method and device, and vehicle

A control method and technology of a control device, applied in the field of devices, vehicles, and vehicle control methods, can solve problems such as poor adaptability to working conditions and inability to adjust control parameters, and achieve energy saving, fuel economy, and emission performance. The effect of working condition adaptability

Inactive Publication Date: 2018-02-06
GREAT WALL MOTOR CO LTD
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Problems solved by technology

[0003] However, the control parameters of the logic threshold control strategy in the related art are mainly aimed at a specific working condition such as NEDC (New European Driving Cycle, New European Driving Cycle), and are formulated based on engineering experience and simulation analysis, resulting in Poor adaptability, unable to adjust control parameters in time according to changes in working conditions
Therefore, the fuel-saving potential of hybrid vehicles has not been fully realized, and there is a lot of room for improvement

Method used

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  • Vehicle control method and device, and vehicle
  • Vehicle control method and device, and vehicle
  • Vehicle control method and device, and vehicle

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Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] figure 1 is a flowchart of a control method of a vehicle according to an embodiment of the present invention.

[0036] Such as figure 1 As shown, the vehicle control method according to the embodiment of the present invention includes the following steps:

[0037] Step S101, acquiring a plurality of operating condition parameters of the vehicle.

[0038] In one embodiment of the present invention, before obtaining the multiple operating condition parameters of the vehicle, the control method of the embodiment of the present invention further includes: collecting multiple operating parameters of the vehicle, so as to The weights extract multiple loadcase parameters.

[0039] S...

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Abstract

The invention provides a vehicle control method and device, and a vehicle. The method comprises the steps of obtaining multiple working condition parameters of a vehicle; converting the working condition parameters into fuzzy values according to a membership function of each working condition parameter in the preset working condition parameters; determining the fuzzy interval of the fuzzy values of each working condition parameter in a corresponding theoretical domain space; determining the current working condition of the vehicle according to a preset fuzzy recognition rule and the fuzzy interval; obtaining engine torque and motor torque corresponding to the current working condition of the vehicle in a preset database. The vehicle control method can be used for identifying the current working condition of the vehicle, optimal engine torque and motor torque are obtained according to the current working condition, control parameters can be adjusted in time according to the change of working conditions, the adaptability of the working conditions is improved, and the aim of fuel economy and emission performance reaching the optimum is achieved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a vehicle control method, device and vehicle. Background technique [0002] The control strategy of hybrid electric vehicles mainly solves the two key problems of energy management and torque distribution that affect the performance of the whole vehicle. In related technologies, the logic threshold control strategy can ensure that the engine works in the high-efficiency area as much as possible, is simple and easy to save energy, and is the most widely used. Among them, the engine provides average power, the motor provides dynamic power, and the dynamic power is timing. The electric motor powers the engine and charges the battery when the dynamic power is negative. [0003] However, the control parameters of the logic threshold control strategy in the related art are mainly aimed at a specific working condition such as NEDC (New European Driving Cycle, New European Driving C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/06B60W10/08
CPCB60W10/06B60W10/08B60W20/00B60W2710/0666B60W2710/083B60Y2200/92Y02T10/40Y02T10/62
Inventor 白东明李岩张培培许赛赛王巨鹏
Owner GREAT WALL MOTOR CO LTD
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