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Control method and device of dual-motor vehicle and electronic equipment

A control method and vehicle technology, applied in the field of automobile control, can solve problems such as poor handling performance, unsatisfactory driver economy, slow dynamic response, etc., and achieve the effect of excellent control of handling stability

Pending Publication Date: 2022-08-09
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In related technologies, the development of electric vehicles and hybrid vehicles is getting faster and faster. Compared with traditional fuel vehicles, electric vehicles, especially front and rear axle four-wheel drive vehicles, have multiple power sources and are more complicated in torque control.
In the current mass-produced electric four-wheel drive electric vehicles, the front and rear motor torque distribution is basically a fixed ratio or several adjustable fixed ratios during normal driving. In the actual driving process, a single index or a fixed ratio is used to distribute the front and rear axles. The driving torque of the motor cannot meet the driving needs of the driver for economy or power. At the same time, the working mode of the hybrid four-wheel drive generally starts from fuel economy, and the economy of the whole vehicle is improved through the torque distribution of the engine and the motor, and less consideration is given to the driver. Intention and vehicle power performance requirements, there are problems such as slow power response and poor handling performance
[0003] For the above problems, no effective solution has been proposed

Method used

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  • Control method and device of dual-motor vehicle and electronic equipment
  • Control method and device of dual-motor vehicle and electronic equipment
  • Control method and device of dual-motor vehicle and electronic equipment

Examples

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Embodiment 1

[0037] According to an embodiment of the present invention, a method embodiment of a method for controlling a dual-motor vehicle is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

[0038] figure 2 is a flowchart of an optional control method for a dual-motor vehicle according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:

[0039] Step S201, calculating vehicle acceleration, road adhesion coefficient and road gradient based on pre-acquired vehicle parameters and driving parameters, wherein the driving parameters at least include: steering wheel angle, accelerator pedal opening, and vehicle parameters at least include: curr...

Embodiment 2

[0114] This embodiment provides an optional control device for a dual-motor vehicle, and each implementation unit included in the control device corresponds to each implementation step in the above-mentioned first embodiment.

[0115] This embodiment provides a control device for a dual-motor vehicle. It should be noted that the control device for a dual-motor vehicle in the embodiment of the present invention can be used to execute the control method for a dual-motor vehicle provided by the embodiment of the present invention. The present invention is implemented below. An example of a control device for a dual-motor vehicle is presented.

[0116] Figure 5 is a schematic diagram of another optional control device for a dual-motor vehicle according to an embodiment of the present invention, such as Figure 5 As shown, it includes: a first calculation unit 51, a second calculation unit 52, a determination unit 53, and a third calculation unit 54, wherein,

[0117] The first ...

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PUM

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Abstract

The invention discloses a control method and device of a dual-motor vehicle and electronic equipment. The method comprises the steps that on the basis of vehicle parameters and driving parameters which are obtained in advance, the vehicle acceleration, the road adhesion coefficient and the road slope are calculated, the driving parameters at least comprise the steering wheel rotation angle and the accelerator pedal opening degree, and the vehicle parameters at least comprise the current vehicle speed; calculating a driving stability factor based on the vehicle acceleration, the road adhesion coefficient, the steering wheel angle and the current vehicle speed; determining a target working mode based on the driving stability factor, the accelerator pedal opening degree, the current vehicle speed, the road slope and a control mode selected by a driver; and calculating a torque distribution parameter according to the target working mode and the vehicle state of the driving vehicle. The technical problem that the current electric vehicle lacks consideration on the power performance of the whole vehicle and the intention of a driver in the prior art, and the operation performance is affected is solved.

Description

technical field [0001] The present invention relates to the technical field of automobile control, and in particular, to a control method and device of a dual-motor vehicle, and electronic equipment. Background technique [0002] In the related art, the development of electric vehicles and hybrid electric vehicles is getting faster and faster. Compared with traditional fuel vehicles, electric vehicles, especially front and rear axle four-wheel drive vehicles, have multiple power sources, which are more complicated in torque control. In the current mass-produced electric four-wheel drive electric vehicles, the torque distribution of the front and rear motors is basically a fixed ratio or several adjustable fixed ratios during normal driving. In the actual driving process, a single indicator or a fixed ratio is used to distribute the front and rear axles. The motor drive torque cannot meet the driver's driving needs of economy or power. At the same time, the working mode of hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/20B60W30/182B60W40/00B60W40/107B60W40/064B60W40/076B60W10/02B60W10/06B60W10/08
CPCB60W20/20B60W30/182B60W40/00B60W40/107B60W40/064B60W40/076B60W10/02B60W10/06B60W10/08B60W2540/18B60W2520/10B60W2540/10B60W2520/105B60W2520/125B60W2520/28B60W2710/02B60W2710/06B60W2710/08Y02T10/62
Inventor 吴爱彬于长虹刘元治赵洋崔金龙周泽慧倪健土
Owner CHINA FIRST AUTOMOBILE
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