A torque analysis method, device, vehicle controller and vehicle

An analytical method and vehicle technology, applied in the field of vehicles, can solve the problem that the torque cannot effectively meet the actual needs of the driver

Active Publication Date: 2022-02-22
四川阿尔特新能源汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a torque analysis method, device, vehicle controller and vehicle to solve the problem that the demand torque obtained by analysis in the existing way cannot effectively meet the actual needs of the driver

Method used

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  • A torque analysis method, device, vehicle controller and vehicle
  • A torque analysis method, device, vehicle controller and vehicle
  • A torque analysis method, device, vehicle controller and vehicle

Examples

Experimental program
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Embodiment 1

[0046] Please see figure 1 , figure 1 A schematic flow diagram of a torque analysis method provided in the embodiment of the present application, including:

[0047] S101: acquiring driving torque and braking torque;

[0048] It should be noted that, in the embodiment of the present application, the driving torque refers to the required output torque after the driver steps on the accelerator pedal; and the braking torque refers to the required output torque after the driver steps on the brake pedal.

[0049] In the embodiment of the present application, the driving torque can be obtained by looking up a table according to the current vehicle speed and the depth of the accelerator pedal. For example, the corresponding relationship between the vehicle speed, the depth of the accelerator pedal and the driving torque can be recorded in the table, and then the corresponding driving torque can be obtained according to the current vehicle speed and the depth of the accelerator peda...

Embodiment 2

[0099] In this embodiment, on the basis of the first embodiment, two more specific torque analysis processes are taken as examples to further illustrate the present application.

example 1

[0101] see image 3 As shown, the VCU will obtain the driving torque, braking torque, creep torque, torque distribution coefficient of the front axle and rear axle, and steering compensation torque. When analyzing, the VCU first adds the driving torque and the braking torque, then compares the summed torque with the creep torque, takes the maximum value and multiplies it with the torque distribution coefficient of the front axle respectively to obtain the front torque. Axle torque, multiplied by the torque distribution coefficient of the rear axle to obtain the rear axle torque; then add the front axle torque and steering compensation torque to obtain the demand torque of the front axle, and add the rear axle torque and steering compensation torque to obtain the demand of the rear axle torque.

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Abstract

Embodiments of the present application provide a torque analysis method, device, vehicle controller, and vehicle. By obtaining the driving torque, braking torque, and torque distribution coefficients of the front and rear axles, the second torque is determined based on the driving torque and the braking torque. A torque, and according to the first torque, the torque distribution coefficient of the front axle and the torque distribution coefficient of the rear axle, the front axle torque and the rear axle torque are obtained, and then the required torque is determined. The entire torque analysis process relies on the driving torque and braking torque, and assigns a reasonable torque distribution coefficient between the front axle and the rear axle, so that the final required torque is more reasonable and the driving experience of the vehicle is better.

Description

technical field [0001] The present application relates to the field of vehicle technology, in particular, to a torque analysis method, device, vehicle controller and vehicle. Background technique [0002] With the continuous improvement of modern living standards, vehicles have become an indispensable part of people's daily life. Vehicle torque is one of the important parameters of the vehicle, which directly determines the performance of the vehicle. Whether the vehicle can correctly analyze and output the torque actually required by the driver will directly affect the driving experience of the vehicle. [0003] The current analysis of vehicle torque is to directly obtain the driving torque and braking torque of the vehicle, and add them together to obtain the required torque. The analytical processing of this method is very rough, and the obtained demand torque cannot effectively meet the actual demand of the driver. Therefore, it is necessary to provide a reliable torq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W10/06B60W10/18
CPCB60W30/18072B60W10/06B60W10/18B60W2710/0666B60W2710/18
Inventor 王亚伟许华宣奇武
Owner 四川阿尔特新能源汽车有限公司
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