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In-vehicle temperature control method for electric vehicle

An in-vehicle temperature, electric vehicle technology, applied in vehicle components, heating/cooling equipment, air handling equipment, etc., can solve problems such as affecting the car's endurance and inconvenience for users to travel, improve energy utilization, facilitate detection and processing, Effects of processing work to resolve detections

Pending Publication Date: 2021-12-03
广西玉柴新能源汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of electric vehicles, the electric vehicle air-conditioning industry has also made significant progress; there are many differences between the electric vehicle power system and the traditional vehicle power system. The degree of pollution to the environment, but since the capacity of the electric vehicle is fixed, the use of the air conditioning system will affect the battery life of the car to a certain extent, and the user may run out of power on the way, which will cause inconvenience to the user;

Method used

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  • In-vehicle temperature control method for electric vehicle
  • In-vehicle temperature control method for electric vehicle
  • In-vehicle temperature control method for electric vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0058] This embodiment provides the specific structure of the fuzzy control module, such as image 3 with 4 As shown, the fuzzy control module, which includes a mixing damper unit and an evaporator fan unit, is used to regulate the working state of the mixing damper unit and the evaporator fan unit, and the mixing damper unit is used to control the opening of the damper, and the evaporator fan The unit is used to control the fan speed.

[0059] In the fuzzy control module,

[0060] The input quantity of the fuzzy control module is: temperature error and temperature error change rate in the compartment;

[0061] The output control quantities are: fan speed and damper opening.

[0062] In the fuzzy control module,

[0063] When the temperature fluctuation in the cabin cab is large, the controller in the fuzzy control module starts to work and respond; when the fluctuation is small, the fan speed in the evaporator fan unit is controlled within 30% of the maximum speed.

[0064...

Embodiment 2

[0084] This embodiment provides the specific structure of the fuzzy control module, such as figure 2 As shown, the temperature simulation module inside the car is used to obtain the temperature inside the car compartment, and the model of the temperature simulation module inside the car is established according to the formula:

[0085] Formula 1, ΔQ f =1000ρV f c p (T f -T i )=1000ρV f c p [0.7(1-λ)(0-T i )X e +0.5λ(60-T i )X h ]

[0086] and formula two,

[0087]

[0088] The input parameters of the system and the calculation relationship can be determined, and the subsystems of each part of the heat source can be established separately. According to the formula 2, the temperature change rate in the compartment can be obtained, and finally the temperature information in the compartment can be obtained by integrating and calculating.

[0089] refer to figure 2 As shown, in the vehicle interior temperature simulation module,

[0090] The basis of formula 1 is...

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Abstract

The invention discloses an in-vehicle temperature control method for an electric vehicle, which comprises a fuzzy control module comprising a mixed air door unit and an evaporator fan unit and used for regulating and controlling the working states of the mixed air door unit and the evaporator fan unit, the mixed air door unit is used for controlling the opening degree of an air door, the evaporator fan unit is used for controlling the rotating speed of a fan; and an in-vehicle temperature simulation module which is used for obtaining the temperature in a car compartment, and establishing a model of the in-vehicle temperature simulation module according to a formula; the method is technologically characterized in that the fuzzy controller of the automobile air conditioner is designed, so that the working states of the two parts are conveniently adjusted, the indoor temperature of an automobile can quickly reach the set comfortable temperature for the human body, adjustment can be carried out according to volatility, the energy utilization rate is increased, and waste of electric energy is avoided as much as possible.

Description

technical field [0001] The invention relates to the technical field of electric vehicle control, in particular to a method for controlling the temperature inside the electric vehicle. Background technique [0002] Electric vehicles refer to vehicles powered by vehicle-mounted power supplies and driven by motors to drive wheels, which meet the requirements of road traffic and safety regulations; due to their smaller impact on the environment than traditional vehicles, their prospects are widely optimistic; their working principle: battery— - current - power regulator - electric motor - power transmission system - driving the car; [0003] With the rapid development of electric vehicles, the electric vehicle air-conditioning industry has also made significant progress; there are many differences between the power system of electric vehicles and the power system of traditional vehicles. Electric vehicles mainly use electric power and hybrid power as power sources. The degree o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00
CPCB60H1/00735B60H1/00871B60H1/00878
Inventor 刘修扬周从源甘雨吴祥威覃柯赈
Owner 广西玉柴新能源汽车有限公司
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