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Vehicle torque control method and system and machine readable storage medium

A torque control and vehicle technology, applied in the field of vehicles, can solve problems such as frustration and sudden changes in vehicle torque

Active Publication Date: 2020-07-07
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a vehicle torque control method to solve the problem of a sense of frustration caused by a sudden change in the vehicle torque caused by the switching of the driving mode of the vehicle and the switching of the energy recovery intensity

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  • Vehicle torque control method and system and machine readable storage medium
  • Vehicle torque control method and system and machine readable storage medium

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0032]In addition, the torque sudden change filter processing mode mentioned in the embodiments of the present invention refers to a special torque filter mode configured in advance to slow down the torque change of the vehicle. It should be understood that the special torque filtering mode corresponds to the normal torque filtering mode, and the normal torque filtering mode refers to the VCU of the vehicle under normal torque request conditions (such as stepping on the accelerator pedal, creeping, etc.) (Vehicle Control Unit, vehicle controller) performs per-cycle gradient calculation for torque filtering in response to the torque request, and sends the current calculated current torque corresponding to the torque request to the MCU (Motor Control Unit, motor controller) of the vehicle in real time ), so that t...

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Abstract

The invention relates to the technical field of vehicles, and provides a vehicle torque control method and system. The vehicle torque control method comprises the steps of in response to switching ofa driving mode or energy recovery intensity of a vehicle, controlling the vehicle to enter a preset torque abrupt change filtering processing mode according to vehicle motion information, wherein thetorque abrupt change filtering processing mode is configured to slow down torque change of the vehicle; and when the vehicle is in the torque abrupt change filtering processing mode, controlling the vehicle to exit the torque abrupt change filtering processing mode according to the accelerator pedal state information of the vehicle. When the driving mode is switched and the energy recovery intensity is switched, the jerking feeling possibly caused by the torque abrupt change working condition is prevented by perfecting the entering and exiting conditions of the torque abrupt change filtering processing mode, and the torque abrupt change filtering processing mode can be exited in time according to the driving intention of a driver, so that subsequent normal driving is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular to a vehicle torque control method, system and machine-readable storage medium. Background technique [0002] In recent years, pure electric vehicles have developed rapidly, and the energy recovery of pure electric vehicles can be adjusted in intensity (for example, divided into three levels of strong, medium and weak). When switching between different energy recovery intensities, the negative torque request will vary greatly. Similarly, pure electric vehicles generally have three driving modes: sport, standard and economy, and the power performance corresponding to different driving modes is very different, so that when switching the driving mode, the change of positive torque request will be obvious. In the prior art, the handling of the above two working conditions with obvious torque changes is not good, and sudden changes in torque often cause the vehicle to feel obvio...

Claims

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Application Information

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IPC IPC(8): B60L15/20
CPCB60L15/20Y02T10/72
Inventor 周德祥刘宇玲董立凡姚航迪张健
Owner GREAT WALL MOTOR CO LTD
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