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Electric vehicle cooling control method, device and system and electric vehicle

A technology of refrigeration control and electric vehicles, which is applied in the direction of power plants, temperature control using electric methods, and the arrangement of cooling combination of power plants. and refrigeration energy consumption to achieve the effect of saving refrigeration energy consumption, ensuring normal operation and improving flexibility

Active Publication Date: 2014-03-26
ZOOMLION ENVIRONMENTAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an electric vehicle cooling control method, device and system, and an electric vehicle to solve the problem of poor flexibility of cooling control and difficulty in ensuring the normal operation of the electric vehicle when cooling the drive motor of the electric vehicle in the prior art. operations, and the inability to take into account the cooling effect and cooling energy consumption

Method used

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  • Electric vehicle cooling control method, device and system and electric vehicle
  • Electric vehicle cooling control method, device and system and electric vehicle
  • Electric vehicle cooling control method, device and system and electric vehicle

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Embodiment 1

[0070] Embodiment 1 of the present invention proposes that when cooling the driving motor of an electric vehicle, the opening of the cooling fan can be controlled according to the temperature of the driving motor, and the opening of the water pump can be controlled according to the temperature of the cooling water. When the cooling fan and the water pump are working, according to The temperature change of the driving motor adjusts the working speed of the cooling fan in real time, and the working speed of the water pump is adjusted in real time according to the temperature change of the cooling water. Such as figure 2 As shown, it is a flow chart of the electric vehicle refrigeration control method proposed in Embodiment 1 of the present invention, and its specific processing flow is as follows:

[0071] Step 21, acquiring the temperature of the driving motor of the electric vehicle and the temperature of the cooling water in the cooling water tank.

[0072] In order to cool...

Embodiment 2

[0139] Corresponding to the cooling control method for electric vehicles proposed in Embodiment 1 of the present invention, Embodiment 2 of the present invention proposes a cooling control device for electric vehicles, the structure of which is as follows Figure 4 shown, including:

[0140] An acquisition device 41, configured to acquire the temperature of the drive motor of the electric vehicle and the temperature of the cooling water in the cooling water tank;

[0141] The control device 42 is used to control the cooling fan to start working at the corresponding initial operating speed when the temperature of the driving motor is greater than the set first temperature threshold, and adjust the temperature of the cooling fan according to the temperature change value of the driving motor within a specified time period. operating speed, and

[0142] When the temperature of the cooling water in the cooling water tank is greater than the set second temperature threshold, the wa...

Embodiment 3

[0151] Corresponding to the cooling control method for electric vehicles proposed in Embodiment 1 of the present invention, Embodiment 3 of the present invention proposes a refrigeration control system for electric vehicles, the structure of which is as follows Figure 5 shown, including:

[0152] The water cooling device includes a cooling water tank 51, a cooling pipe 52 and a water pump 53. The cooling water tank 51 communicates with the cooling pipe 52 to form a circulating cooling water circuit. The water pump 53 communicates with the cooling pipe 52 and is used to drive the cooling water in the cooling pipe 52 to move. The driving motor of the electric vehicle is arranged on the pipeline of the cooling pipe 52;

[0153] Cooling fan 54, placed on one side of the drive motor, for sending wind to the drive motor;

[0154] The first temperature sensor 55 is placed in the drive motor for detecting the temperature of the drive motor;

[0155] The second temperature sensor 56...

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PUM

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Abstract

The invention discloses an electric vehicle cooling control method, device and system and an electric vehicle. The method includes: acquiring the temperature of the drive motor of the electric vehicle and the temperature of the cooling water in a cooling water tank; when the temperature of the drive motor is larger than the set first temperature threshold, controlling a radiating fan to operate at the corresponding initial operation rotating speed, and adjusting the operation rotating speed of the radiating fan according to the temperature variation of the drive motor in a set time period; when the temperature of the cooling water in the cooling water tank is larger than the set second temperature threshold, controlling a water pump to operate at the corresponding initial operation rotating speed, and adjusting the operation rotating speed of the water pump according to the temperature variation of the cooling water in the set time period. By the method, the problems that when the drive motor of the eclectic vehicle is cooled, cooling control is poor in flexibility, normal operation of the electric vehicle is hard to guarantee, and the cooling effect and cooling energy consumption cannot be considered both in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of refrigeration for electric vehicles, in particular to a refrigeration control method, device and system for electric vehicles, and an electric vehicle. Background technique [0002] In the sanitation industry, sanitation workers generally drive electric vehicles to carry out work. In order to prevent the drive motor of the electric vehicle from overheating, the electric vehicle is generally equipped with a refrigeration system. The refrigeration system includes two parts: water cooling and air cooling. The water cooling part includes cooling water and The water pump, wherein, when the water pump is working, it drives the cooling water in the cooling water circuit to circulate, so as to reduce the temperature of the driving motor, and the air cooling part includes a cooling fan. [0003] In the prior art, the control principle of the water pump and cooling fan is as follows: figure 1 As shown, when the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19B60K11/00
Inventor 李珍吴勇蒋亚萍易尧苏伟
Owner ZOOMLION ENVIRONMENTAL IND CO LTD