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Method, device and vehicle for determining power generation torque

A technology for generating torque and determining method, applied in the field of vehicles, can solve problems such as battery failures, and achieve the effect of reducing battery overcharge failures, forcibly charging batteries, and reducing battery failures

Active Publication Date: 2022-06-24
BEIJING CHJ AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method, device, and vehicle for determining power generation torque, so as to solve the problem that the battery is prone to failure when the vehicle works in the range-extending mode

Method used

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  • Method, device and vehicle for determining power generation torque
  • Method, device and vehicle for determining power generation torque
  • Method, device and vehicle for determining power generation torque

Examples

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Comparison scheme
Effect test

example 1

[0096] Example 1: If the above-mentioned capability parameters include charging power, the power generation torque of the range extender may be determined according to the actual demand torque of the first motor, the actual demand torque of the second motor, and the charging power of the battery, so that the The power generation is less than or equal to the sum of the power consumption of the motor and the rechargeable capacity of the battery, and is greater than or equal to the power consumption of the motor.

example 2

[0097] Example 2: If the above-mentioned capability parameters include discharge power, the power generation torque of the range extender may be determined according to the actual demand torque of the first motor, the actual demand torque of the second motor, and the discharge power of the battery, so that the The power generation is greater than or equal to the difference between the power consumption of the motor and the dischargeable capacity of the battery, and is less than or equal to the power consumption of the motor.

example 3

[0098] Example 3: If the above capability parameters include discharge power and charging power, the power generation of the range extender can be determined according to the actual demand torque of the first motor, the actual demand torque of the second motor, the discharge power of the battery, and the charging power of the battery torque, so that the power generation of the range extender is less than or equal to the sum of the power consumption of the motor and the rechargeable capacity of the battery, and greater than or equal to the difference between the power consumption of the motor and the dischargeable capacity of the battery.

[0099] It should be noted that, in this embodiment of the present invention, the actual required torque of the first motor and the actual required torque of the second motor can be converted into power for calculation, or the above-mentioned discharge power and charging power can be converted into torque for calculation, For example, accordin...

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PUM

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Abstract

The present invention provides a method, device, and vehicle for determining power generation torque. The method includes: obtaining the actual required torque of the first motor and the actual required torque of the second motor when the VDC function of the vehicle dynamic control is activated, wherein the The first motor is the motor of the first axle of the vehicle, and the second motor is the motor of the second axle of the vehicle; according to the actual demand torque of the first motor and the actual demand torque of the second motor, determine The generating torque of the vehicle range extender. Through the method for determining the power generation torque provided by the present invention, the power generation of the range extender can be matched with the actual power consumption of the motor, and the situation that the range extender forcibly charges the battery can be reduced, thereby reducing the occurrence of battery overcharge failures.

Description

technical field [0001] The present invention relates to the field of vehicles, and in particular, to a method, device and vehicle for determining power generation torque. Background technique [0002] The extended-range electric vehicle refers to an electric vehicle equipped with a range extender. When the battery power of the vehicle is sufficient, the extended-range electric vehicle works in pure electric mode. When the vehicle battery is insufficient, the extended-range electric vehicle works in increasing In the range mode, the range extender is used to generate electricity to drive the motor or to charge the car battery, thereby increasing the driving range of the electric car. [0003] However, in the case of driving a car motor through a range extender, the battery is prone to failure. After analysis, the inventor found that, when the motor of the car is driven by the range extender, the power generation torque of the range extender is usually equal to the total dema...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L50/62B60L15/20B60L3/00
CPCB60L50/62B60L15/20B60L3/0046B60L2240/423Y02T10/72
Inventor 马东辉魏强
Owner BEIJING CHJ AUTOMOTIVE TECH CO LTD