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Vehicle drive control method and device

A technology for automobiles and driving forces, applied in control devices, control drives, electric vehicles, etc., can solve problems such as hidden safety hazards, unsuitable for novice drivers, and slippery slopes.

Active Publication Date: 2019-03-01
安石新能源(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the driver uses the handbrake combined with the accelerator to prevent the phenomenon of slipping, but this method is not suitable for novice drivers, so slipping may still occur, and there are certain safety hazards

Method used

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  • Vehicle drive control method and device
  • Vehicle drive control method and device
  • Vehicle drive control method and device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0049] Such as figure 2 A flow chart of the vehicle driving control method provided by the embodiment of the present invention is shown. The vehicle driving control method is applied to an electric vehicle 100 driven by four-wheel motors. See figure 2 , the method includes:

[0050] Step S110: When it is detected that the brake pedal of the electric vehicle 100 changes from valid to invalid, and the vehicle begins to move in reverse, determine the temperature of the left front wheel motor 140 of the electric vehicle 100, the temperature of the left rear wheel motor 141 Whether the temperature of , the temperature of the right front wheel motor 142 and the temperature of the right rear wheel motor 143 are all lower than the preset temperature.

[0051] When the vehicle controller 110 of the above-mentioned electric vehicle 100 detects that the brake pedal changes from valid to invalid, and the vehicle reverses, it means that the user suddenly starts the vehicle on a slope ...

no. 2 example

[0104] The second embodiment of the present invention provides a vehicle drive control device, which is applied to an electric vehicle 100 driven by four-wheel motors. See Figure 4The vehicle drive control device 200 includes a first temperature judgment module 210, a standing slope state control module 220, a torque response control module 230, an uphill control module 240, a slip judgment module 250, a torque compensation calculation module 260 and a torque compensation execution module 270. Wherein, the first temperature judging module 210 is used for judging the temperature of the left front wheel motor of the electric car 100 when it is detected that the brake pedal of the electric car 100 is changed from valid to invalid and the vehicle starts to move in reverse. 140, the temperature of the left rear wheel motor 141, the temperature of the right front wheel motor 142 and the temperature of the right rear wheel motor 143 are all less than the preset temperature; When t...

no. 3 example

[0119] The third embodiment of the present invention provides an electric vehicle 100, please refer to figure 1 , the electric vehicle 100 includes a memory 180 and a vehicle controller 110, the memory 180 stores computer instructions, and when the computer instructions are read and executed by the vehicle controller 110, the vehicle control The device 110 executes the method provided in the first embodiment of the present invention.

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PUM

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Abstract

The invention provides an automobile drive control method and device, and relates to the technical field of automobiles. The automobile drive control method is applied to an electric automobile drivenby four motors and comprises the steps that when a brake pedal of an electric automobile is detected to be changed from effectiveness to non-effectiveness, and when the electric automobile moves in reverse, whether the temperature of all the four motors is lower than the preset temperature or not is detected; if so, the electric automobile is kept in a hill-holding state, and the target rotatingspeed of the four motors is controlled to be 0; when the command driving torque of the four motors is greater than the hill-holding torque of the hill-holding state, the four motors are all controlledto enter into a torque response state, so that the electric automobile enters into an uphill mode; whether the electric automobile skids or not is judged based on the speed of four wheels of the electric automobile; if so, the corresponding torque compensation amount for skidding wheels is calculated; and the corresponding motor speed of the wheels is controlled based on the torque compensation amount. The automobile drive control method can realize the drive control of the electric automobile driven by the four motors when electric automobile goes uphill.

Description

technical field [0001] The present invention relates to the technical field of automobiles, in particular to an automobile drive control method and device. Background technique [0002] At present, when an electric vehicle starts on a slope, it often slips down a slope. Usually the driver uses the handbrake in combination with the accelerator to prevent the slope phenomenon, but this method is not suitable for novice drivers, so the slope may still occur, and there is a certain potential safety hazard. Contents of the invention [0003] In view of this, an embodiment of the present invention provides a method and device for controlling driving of a vehicle. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is as follows: [0005] In the first aspect, the embodiment of the present invention provides a vehicle driving control method, which is applied to an electric vehicle driven by four-wheel motors, and the method includ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60L15/32
CPCB60L15/20B60L15/2018B60L15/2081B60L15/32B60L2240/12B60L2240/421B60L2240/423B60L2240/425B60L2240/461B60L2240/465B60L2240/642Y02T10/72
Inventor 王雷罗永昌
Owner 安石新能源(深圳)有限公司