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Method for calibrating vehicle demanded torque and torque calibration device

A technology that requires torque and vehicles, is applied in the field of methods and torque calibration devices, and can solve problems such as difficult torque

Active Publication Date: 2017-12-22
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for calibrating the required torque of a vehicle and a torque calibrating device to solve the problem of difficulty in calibrating the required torque of the vehicle creep function in the prior art

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  • Method for calibrating vehicle demanded torque and torque calibration device
  • Method for calibrating vehicle demanded torque and torque calibration device
  • Method for calibrating vehicle demanded torque and torque calibration device

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Embodiment Construction

[0054] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0055] figure 1 It is a flow chart of a method for calibrating the required torque of a vehicle provided by an embodiment of the present invention. The method is applied to a torque calibration device, the method comprising:

[0056] Step S101 , determining the balance torque of the vehicle running at the target speed, the balance torque being the torque that needs to be provided to overcome friction when running at the target speed.

[0057] Step S102, determining the critical acceleration when the vehicle starts.

[0058] Step S103 , according to the critical acceleration and the target speed, calibrate the required acceleration curve of the vehicle in the pr...

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Abstract

The invention provides a method for calibrating vehicle demanded torque and a torque calibration device and aims to solve the problem in the prior art that calibration of torque demanded by a vehicle worming function is difficult. The method comprises the steps that balance torque of a vehicle running at a target speed is determined, wherein the balance torque is the torque provided to overcome friction demands during running at the target speed; temporary acceleration for vehicle starting is determined; according to the temporary acceleration and the target speed, an acceleration curve demanded during the course from starting to reaching of the target speed under a vehicle worming state is calibrated; and according to the calibrated acceleration, mass of the vehicle and the balance torque, a demanded torque curve for the course from starting to reaching of the target speed under the vehicle worming state is calibrated.

Description

technical field [0001] The present invention relates to the field of vehicles, in particular to a method for calibrating the required torque of a vehicle and a torque calibrating device. Background technique [0002] In the driving technology of traditional fuel vehicles, the vehicle can slowly increase the engine idle speed in the forward gear and drive slowly at 7-9Km / h. In the idling state, the vehicle maintains the minimum engine speed, so that after the user starts the vehicle, the vehicle can be driven at a low speed, and the user's operation convenience is improved when driving in traffic jams. [0003] With the popularity of electric vehicles, more and more users have changed from driving traditional fuel vehicles to driving electric vehicles. In order to improve the drivability of electric vehicles, existing electric vehicles can control the output torque to realize the creep function. In the creep state, electric vehicles can simulate the idling of traditional fu...

Claims

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Application Information

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IPC IPC(8): B60W40/10
CPCB60W40/10
Inventor 韩梦思
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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