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Vehicle control method and device

A vehicle control device, a technology for vehicle control, applied in vehicle components, electric vehicles, transportation and packaging, etc., can solve problems such as energy waste

Active Publication Date: 2019-07-05
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, because the speed control of the car is realized through the cooperation of the accelerator pedal and the brake pedal in the prior art, the problem of energy waste caused by the application on the pure electric vehicle

Method used

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  • Vehicle control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] refer to figure 1 , is a flowchart of a vehicle control method according to an embodiment of the present invention, the method is applied to a pure electric vehicle, and the pure electric vehicle includes a vehicle control module, an accelerator pedal and a brake pedal, and may specifically include the following steps :

[0028] Step 101, through the vehicle control module, it is judged whether the single-pedal control function is enabled.

[0029] In the embodiment of the present invention, the vehicle control module detects the signal command corresponding to the single-pedal speed control switch; if the signal command is a preset opening command, the single-pedal speed control switch is in the open state; if the signal If the command is a preset closing command, the single-pedal speed control switch is in the closed state.

[0030] In practical applications, the single-pedal control function is generally integrated in the vehicle control module, which can usually c...

Embodiment 2

[0042] refer to figure 2 , is a flowchart of a vehicle control method according to an embodiment of the present invention, the method is applied to a pure electric vehicle, and the pure electric vehicle includes a vehicle control module, an accelerator pedal and a brake pedal, and may specifically include the following steps :

[0043] Step 201, through the vehicle control module, it is judged whether the single-pedal control function is enabled.

[0044] This step is the same as step 101 and will not be described in detail here.

[0045] Step 202, if the single-pedal speed control function is turned on, output the first torque according to the first preset table, and send an energy recovery request to the vehicle control module; the first preset table is the acceleration When the pedal alone controls the acceleration and braking of the vehicle, the comparison table between the current vehicle speed, the opening of the accelerator pedal and the positive and negative values ...

Embodiment 3

[0063] refer to image 3 , is a structural block diagram of a vehicle control device according to an embodiment of the present invention, the device is applied to a pure electric vehicle, and the pure electric vehicle includes a vehicle control module, an accelerator pedal and a brake pedal.

[0064] Judgment module 301 , single-pedal control module 302 , energy recovery module 303 .

[0065] refer to Figure 4 The functions of each module and the interaction between each module are introduced in detail below.

[0066] A judging module 301, configured to judge whether the single-pedal control function is enabled through the vehicle control module;

[0067] The single-pedal control module 302 is configured to output the first torque according to the first preset table if the single-pedal speed control function is turned on, and send an energy recovery request to the vehicle control module; the first preset The table is a comparison table between the current vehicle speed, th...

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Abstract

The invention provides a vehicle control method and device. The vehicle control method and device are applied to a pure electric vehicle. The pure electric vehicle comprises a vehicle control module,an accelerator pedal and a brake pedal. The vehicle control method comprises the steps of judging whether a single pedal control function is turned on through the vehicle control module, outputting afirst torque according to a first preset table and sending an energy recovery request to the vehicle control module if the single pedal control function is turned on, enabling the first preset table to be a contrast relation table of a current vehicle speed, an accelerator pedal opening degree and accelerator pedal output torque positive and negative values acquired when the accelerator pedal independently controls the acceleration and braking of the vehicle, performing energy recovery of the first torque through the vehicle control module, and outputting a second torque after the energy recovery. The vehicle control method and device solve the problem that the prior art realizes the speed control of the vehicle through the cooperation of the accelerator pedal and the brake pedal resultingin energy waste when applied to the pure electric vehicle.

Description

technical field [0001] The invention relates to the field of automobiles, especially the field of pure electric vehicles, and includes a vehicle control method and device. Background technique [0002] Due to the increasing energy crisis and air pollution, electric vehicles will become the main trend of the future automotive industry. The key factors for the development of pure electric vehicles are how to maximize energy utilization and optimize energy recovery systems. [0003] In the prior art, the methods for realizing the acceleration and deceleration of automobiles are basically realized through the cooperation of the accelerator pedal and the brake pedal. This long-applied solution has no problems in the realization of traditional vehicles, but when applied to pure electric vehicles, it has a poor effect on energy recovery and utilization, and does not make more use of the energy wasted during the braking process. Braking during acceleration, or accelerating after b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60W30/18
CPCB60L7/10B60W30/18063
Inventor 李雷周德祥刘宇玲张健李晓腾
Owner GREAT WALL MOTOR CO LTD
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