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Intelligent hybrid electric vehicle, fan cooling system and method

A fan cooling and engine cooling technology, which is applied in the combination of power unit cooling layout, power unit, vehicle components, etc., can solve the problems of large fluctuations in coolant temperature, large output torque of cooling fans, and poor temperature control accuracy , to achieve the effect of infinitely variable speed, slow temperature drop, and improvement of fuel economy

Active Publication Date: 2022-02-01
GUILIN UNIV OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent hybrid electric vehicle, fan cooling system and method. The technical problems to be solved are: poor temperature control accuracy, large fluctuations in coolant temperature; large average output torque of cooling fan, low fuel economy Low

Method used

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  • Intelligent hybrid electric vehicle, fan cooling system and method
  • Intelligent hybrid electric vehicle, fan cooling system and method
  • Intelligent hybrid electric vehicle, fan cooling system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as Figure 1 to Figure 3 As shown, the fan cooling system includes an induction mode determiner 101, a fuzzy controller 102, a processor 103 and a fan body 104; connected; the sensing mode determiner 101 is also connected to the processor 103 through a line;

[0048] The sensing mode determiner 101 is connected to the car; the sensing mode judger 101 is used to sense the state of the car, and when it senses that the car is in the pure electric mode and the vehicle speed is not zero, it outputs a shutdown signal to the processor 103 ; When sensing that the car is not in pure electric mode, output a start signal to the fuzzy controller 102;

[0049] The fuzzy controller 102 is connected with the engine by a line, and the fuzzy controller 102 detects the speed n of the engine; also detects the actual temperature T of the coolant flowing through the engine place t , to obtain the coolant temperature difference ΔT, where the coolant temperature difference ΔT is the se...

Embodiment 2

[0074] Such as Figure 4 As shown, the smart hybrid vehicle includes a motor cooling mechanism 2, an engine cooling mechanism 3 and the fan cooling system 1:

[0075] When the motor cooling mechanism 2 is placed at the end of the engine cooling mechanism 3 away from the vehicle body, the fan cooling system 1 is placed at the end of the motor cooling mechanism 2 away from the engine cooling mechanism 3;

[0076] Or when the motor cooling mechanism 2 is placed on the upper end of the engine cooling mechanism 3, the fan cooling system 1 is placed on one side of the engine cooling mechanism 3;

[0077] The fan cooling system 1 senses the state of the car. When the car is in pure electric mode, the motor cooling mechanism 2 performs cooling and heat dissipation, and the fan cooling system 1 stops working; when the car is in engine mode, the fan The cooling system 1 operates to blow air and dissipate heat to the engine cooling mechanism 3 and the motor cooling mechanism 2 .

[007...

Embodiment 3

[0094] A fan cooling method, comprising the steps of:

[0095] The sensing mode determiner 101 senses the state of the car, and when it senses that the car is in the pure electric mode and the vehicle speed is not zero, it outputs a shutdown signal to the processor 103; The fuzzy controller 102 outputs a start signal;

[0096] Fuzzy controller 102 detects the rotating speed n of engine; Also detects the actual temperature T of coolant flowing through engine place t , to obtain the coolant temperature difference ΔT, where the coolant temperature difference ΔT is the set temperature T OPT and actual temperature T t The difference, that is, ΔT=T OPT -T t ; Also process the engine speed n, the coolant temperature difference ΔT and the start signal, generate a processed signal and transmit it to the processor 103;

[0097] The processor 103 processes the processing signal or the shutdown signal, generates a control signal and transmits it to the fan body 104, and the fan body ...

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Abstract

The invention relates to an intelligent hybrid electric vehicle, a fan cooling system and a method. The fan cooling system includes an induction mode judger, a fuzzy controller, a processor and a fan body; When the car is in non-pure electric mode, it outputs a shutdown signal to the processor; when it senses that the car is not in pure electric mode, it outputs a startup signal to the fuzzy controller; the fuzzy controller detects the engine speed n; also detects the actual temperature T of the coolant t , to obtain the coolant temperature difference ΔT; the fuzzy controller processes the engine speed n, the coolant temperature difference ΔT and the opening signal, generates a processed signal and transmits it to the processor; the processor processes the processed signal or the closed signal, and generates a control signal It is transmitted to the fan body, and the fan body controls the operation status of the fan body. Compared with the prior art, the invention enables the hybrid electric vehicle to dissipate heat faster, which is beneficial to the starting of the vehicle and the improvement of fuel economy.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an intelligent hybrid electric vehicle, a fan cooling system and a method. Background technique [0002] The two sets of power units of hybrid electric vehicles need to be properly cooled during the working process, so as to protect the power unit, improve fuel economy and emissions, and keep the power system in the best working condition. Studies have shown that if the coolant temperature exceeds 105°C, the engine will be damaged, and if it is lower than 45°C, the average starting resistance torque of the engine will increase rapidly as the temperature drops. Excessive temperature of the motor and motor controller will also lead to problems such as power drop, shortened life, and even damage. At the same time, excessive cooling will also increase fuel consumption. [0003] Due to the different temperature control objectives of the two sets of power plants in hybrid electri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/023B60K11/04
CPCB60K11/04B60R16/0231
Inventor 封进
Owner GUILIN UNIV OF AEROSPACE TECH
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