Torque control method and system and vehicle

A torque control and vehicle technology, applied in the field of vehicles, can solve problems such as poor driving experience and deceleration, and achieve the effect of prolonging life and improving driving comfort

Active Publication Date: 2017-12-19
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the accelerator pedal opening is small, there will be a phenomenon that the vehicle decelerates instead of stepping on the accelerator pedal, and the driving experience is poor.

Method used

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  • Torque control method and system and vehicle
  • Torque control method and system and vehicle
  • Torque control method and system and vehicle

Examples

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance.

[0032] These and other aspects of embodiments of the invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implemen...

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PUM

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Abstract

The invention discloses a torque control method and system and a vehicle. The torque control method comprises the steps that a crawling torque value is obtained when the vehicle withdraws from the crawling state; and after the vehicle withdraws from the crawling state, a first driving torque value is obtained according to the crawling torque value and the opening degree of an accelerator pedal, so that a motor is controlled to operate through the first driving torque value. The driving torque value is larger than the crawling torque value. The torque control method and system and the vehicle have the following advantages that when the vehicle withdraws from crawling, no sudden change happens on the output torque of a motor system, no impact is generated in a transmission system, prolonging of the service life of the transmission system is facilitated, and the driving and riding comfort is improved at the same time.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a torque control method, a control system and a vehicle. Background technique [0002] At present, in electric vehicles with creep function, when the accelerator pedal is stepped on to exit the creep mode, the requested torque of the vehicle controller (VCU, Vehicle Control Unit) starts from 0Nm and outputs the requested torque according to the opening of the accelerator pedal. When the opening of the accelerator pedal is small, the vehicle will decelerate when the accelerator pedal is stepped on, and the driving experience is poor. Contents of the invention [0003] The present invention aims to solve at least one of the above-mentioned technical problems. [0004] The inventor of the present application is based on the following understanding: the requested torque of the VCU starts from 0Nm and outputs the requested torque according to the accelerator pedal opening. This ki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60L15/28
CPCB60L15/28B60L2240/423B60W30/18B60W2710/083Y02T10/72
Inventor 黄维
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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