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Vehicle regeneration torque adjusting method and vehicle

A technology of regenerative torque and adjustment method, which is applied in the direction of vehicle components, electric vehicles, electric braking systems, etc., can solve problems such as waste of braking energy, achieve the effect of avoiding energy waste and efficiently recovering braking energy

Active Publication Date: 2020-07-03
WEICHAI POWER CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] However, the existing method for determining the regenerative torque does not recover the energy lost in the braking process to the greatest extent, resulting in a waste of braking energy

Method used

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  • Vehicle regeneration torque adjusting method and vehicle
  • Vehicle regeneration torque adjusting method and vehicle
  • Vehicle regeneration torque adjusting method and vehicle

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0055] Braking energy recovery is one of the important technologies of electric vehicles and hybrid vehicles. In general internal combustion engine vehicles, when the vehicle decelerates and brakes, the kinetic energy of the vehicle is converted into heat energy through the braking system and released to the atmosphere. In electric vehicles and h...

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Abstract

The embodiment of the invention provides a vehicle regeneration torque adjusting method and a vehicle. The method comprises the following steps: obtaining the current speed of a target vehicle, and determining an initial regeneration torque according to the current speed; obtaining a gradient value of the driving road surface of the target vehicle; determining the mass of the target vehicle; determining a target regeneration torque coefficient according to the gradient value and the mass of the target vehicle; and determining a target regeneration torque according to the initial regeneration torque and the target regeneration torque coefficient, and adjusting a motor of the target vehicle according to the target regeneration torque. According to the embodiment of the invention, the brake energy can be more efficiently recycled, and energy waste is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of vehicle control, in particular to a method for adjusting regenerative torque of a vehicle and a vehicle. Background technique [0002] Braking energy recovery is one of the important technologies of electric vehicles and hybrid vehicles. In general internal combustion engine vehicles, when the vehicle decelerates and brakes, the kinetic energy of the vehicle is converted into heat energy through the braking system and released to the atmosphere. In electric vehicles and hybrid vehicles, this wasted motion energy can be converted into electrical energy through braking energy recovery technology and stored in the energy storage mechanism, and further converted into driving energy, thereby effectively utilizing braking energy , extending the driving range of the vehicle. [0003] When regenerative braking, it is necessary to determine the regenerative torque of the motor. In the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/08B60W40/105B60W40/076B60W40/13B60W40/10B60L7/10
CPCB60L7/10B60W10/08B60W40/076B60W40/10B60W40/105B60W40/13
Inventor 姜峰邓金涛时艳茹张芳乔运乾
Owner WEICHAI POWER CO LTD
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