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Vehicle range extender control method and device

A control method and a technology of a range extender, which are applied to vehicle components, vehicle energy storage, hybrid vehicles, etc., can solve the problem of large vehicle power attenuation, power battery power loss, and vehicle speed that cannot reach the start-up condition of the range extender and other issues to achieve the effect of reducing the probability of power attenuation

Active Publication Date: 2021-06-29
BEIJING CHJ AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the vehicle is in a traffic jam, the driving speed of the vehicle is very low, and the speed of the vehicle cannot meet the activation conditions of the range extender, and the vehicle will always run only on the power of the power battery.
This situation will lead to a large power loss of the power battery, and the risk of vehicle power attenuation is greater

Method used

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  • Vehicle range extender control method and device
  • Vehicle range extender control method and device
  • Vehicle range extender control method and device

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] In the first aspect, embodiments of the present disclosure provide a method for controlling a vehicle range extender, such as figure 1 As shown, the method mainly includes:

[0031] 101. Monitor the speed of the vehicle.

[0032] In practical applications, when the vehicle is running, the speed of the vehicle will change with the driving conditions in which it is located, so that the vehicle can travel at a speed suitable f...

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Abstract

The embodiment of the invention discloses a vehicle range extender control method and device, relates to the technical field of automobiles, and mainly aims to control a range extender to start and stop under the traffic jam working condition so as to maintain the electric quantity of a vehicle power battery under the traffic jam working condition. According to the method, the speed of a vehicle is monitored; when it is monitored that the vehicle runs at the speed higher than a preset first speed threshold value and runs at the speed lower than a preset second speed threshold value, whether the continuous running duration of the vehicle at the speed higher than the first speed threshold value is smaller than a preset first duration threshold value or not is judged, the first speed threshold value is greater than the second speed threshold value; if the continuous driving duration of the vehicle at the speed higher than the first speed threshold value is smaller than the first duration threshold value, a range extender is started; and if the continuous driving duration of the vehicle at the speed higher than the first speed threshold value is not smaller than the first duration threshold value, the range extender is not started.

Description

technical field [0001] The embodiments of the present disclosure relate to the technical field of automobiles, in particular to a method and device for controlling a vehicle range extender. Background technique [0002] As people pay more and more attention to environmental protection, electric vehicles are widely used in people's lives, and range-extending electric vehicles use the range extender to supply power to the vehicle's power battery when the power of the vehicle's power battery is low, so the battery life is better. , which becomes the main application of electric vehicles. [0003] At present, in the start-stop control strategy of the range extender, the start-stop time of the range extender is determined according to the vehicle speed, the vehicle's SOC (State of Charge, state of charge) and the required power. However, when the vehicle is in a traffic jam, the driving speed of the vehicle is very low, and the speed of the vehicle cannot meet the activation con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W10/26B60W20/40B60L50/62
CPCB60W30/18018B60W10/26B60W20/40B60L50/62B60W2510/244B60W2520/10Y02T10/62Y02T10/70
Inventor 陈琳琳
Owner BEIJING CHJ AUTOMOTIVE TECH CO LTD