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Vehicle torque control method and device

A control method and vehicle technology, applied in the direction of control devices, control drives, vehicle components, etc., can solve the problems of heavy workload and low efficiency, and achieve the effect of improving control performance and calibration efficiency

Pending Publication Date: 2022-06-24
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different vehicle weight, resistance, and target maximum speed of different models, the maximum speed request torque is different. , Carry out real vehicle calibration in different driving modes, the workload of calibration is heavy and the efficiency is low

Method used

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  • Vehicle torque control method and device
  • Vehicle torque control method and device
  • Vehicle torque control method and device

Examples

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Embodiment Construction

[0049]Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

[0050] figure 1 is a flow chart of a method for controlling vehicle torque according to an exemplary embodiment, such as figure 1 As shown, the method includes:

[0051] Step 101: Determine a first vehicle speed and a second vehicle speed according to the target maximum vehicle speed corresponding to the current driving mode of the vehicle, and the second vehicle speed is higher than the first...

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Abstract

The invention relates to a vehicle torque control method and device, and relates to the field of vehicle control, and the method comprises the steps: determining a first vehicle speed and a second vehicle speed according to a target maximum vehicle speed corresponding to a current driving mode of a vehicle; when the vehicle speed reaches the first vehicle speed, a first torque value of the pedal torque is determined according to the first vehicle speed, and a maximum torque value of the maximum vehicle speed request torque is determined according to the first torque value. And according to the target maximum vehicle speed, the second torque value and the maximum torque value, determining a first specified duration for changing the vehicle speed of the vehicle from the first vehicle speed to the second vehicle speed, and controlling the maximum vehicle speed request torque to reach the second torque value after the first specified duration. And according to the first specified duration, the first torque value and the second torque value, the target slope corresponding to the maximum vehicle speed request torque is determined. And under the condition that the maximum vehicle speed request torque reaches the second torque value, the vehicle is controlled to run according to the maximum vehicle speed request torque, and the maximum vehicle speed request torque is controlled to be reduced from the second torque value according to the target slope.

Description

technical field [0001] The present disclosure relates to the field of vehicle control, and in particular, to a method and device for controlling vehicle torque. Background technique [0002] With the continuous development of society, the number of automobiles is constantly increasing, and the performance of automobiles has also been paid more and more attention by people. Usually, each driving mode of the car corresponds to at least one maximum speed and a speed threshold. When the actual vehicle speed reaches the vehicle speed threshold, the maximum speed is enabled. After the maximum vehicle speed is enabled, the vehicle will continue to drive according to the control of the pedal torque, until the maximum vehicle speed request torque is less than the pedal torque, the maximum vehicle speed request torque intervenes, and the vehicle starts to drive according to the maximum vehicle speed request torque control. When the maximum vehicle speed is enabled, if the initial val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/12B60L2240/423B60L2250/26Y02T10/72
Inventor 李士龙
Owner GREAT WALL MOTOR CO LTD