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Frequency converting control method, device and system of new energy car air conditioner and new energy car

A new energy vehicle, frequency conversion control technology, applied in the electronic field, can solve the problems of low speed of air conditioner compressor, unable to maintain the compressor speed, unable to realize variable speed operation, etc., to achieve the effect of realizing frequency conversion control and meeting temperature requirements

Active Publication Date: 2019-02-19
XIAMEN GOLDEN DRAGON BUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the car, the transmission ratio between each component and the main drive motor is constant, and the speed of the compressor is proportional to the speed of the engine, that is, the speed of the engine is high, and the speed of the air conditioner compressor is also high; the speed of the engine is low , the speed of the air conditioner compressor will be relatively low, and the speed of the compressor cannot be kept in the high-efficiency speed range, so the working speed of each component is also fixed, and variable speed work cannot be realized

Method used

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  • Frequency converting control method, device and system of new energy car air conditioner and new energy car
  • Frequency converting control method, device and system of new energy car air conditioner and new energy car
  • Frequency converting control method, device and system of new energy car air conditioner and new energy car

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no. 1 example

[0044] see figure 1 , figure 1 It is a schematic flowchart of a new energy vehicle air conditioner frequency conversion control method according to the first embodiment of the present invention. Specifically include the following steps:

[0045] S10, receiving the target speed sent by the frequency conversion controller of the air conditioner; wherein, the target speed is calculated according to the temperature inside the vehicle and the set temperature.

[0046] In this embodiment, take a vehicle with a two-in-one pumping system installed as an example. First, the rated speed of the two-in-one pumping system is 2000r / min. According to the characteristics of the steering gear, the minimum safe speed of the steering pump is determined to be 1000r / min. . Therefore, when the steering is not turned, the speed at which the air conditioner can be controlled by frequency conversion is 1000-2000r / min. At the same time, according to the compressor performance curve, it can be known...

no. 2 example

[0066] see figure 2 , figure 2 It is a schematic structural diagram of a new energy vehicle air conditioner frequency conversion control device according to the second embodiment of the present invention. The second embodiment of the present invention provides a new energy vehicle air conditioner frequency conversion control device, which specifically includes:

[0067] The receiving module 10 is used to receive the target speed sent by the air conditioner inverter controller; wherein, the target speed is calculated according to the temperature inside the car and the preset temperature;

[0068] Calculation module 20, for calculating and obtaining the target power supply frequency according to the target rotational speed;

[0069] The command generation module 30 is configured to generate a frequency conversion command according to the target power supply frequency when it is determined that the current steering state is not in, and send the frequency conversion command to...

no. 3 example

[0074] see image 3 , image 3 It is a schematic structural diagram of a new energy vehicle air conditioner frequency conversion control system according to the third embodiment of the present invention. The third embodiment of the present invention provides a new energy vehicle air conditioner frequency conversion control system, which specifically includes: air conditioner frequency conversion controller 1, vehicle controller 2, accessory controller 3, main motor 5 and air conditioner compressor 6; air conditioner frequency conversion controller 1. The vehicle controller 2, accessory controller 3 and air conditioner compressor 6 are respectively connected to the main motor 5 through an electromagnetic clutch and a transmission mechanism. The transmission mechanism includes connection with transmission methods such as splines, flanges or belts.

[0075] The air conditioner frequency conversion controller 1 is used to calculate the target speed according to the temperature i...

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Abstract

The invention discloses a frequency converting control method, device and system of a new energy car air conditioner and a new energy car. The method comprises the steps that target rotating speed sent by a frequency converting controller of the air conditioner is received, wherein the target rotating speed is calculated according to the temperature in the car and preset temperature; target powerfrequency is calculated according to the target rotating speed; when it is determined that the car is not in a steering state currently, a frequency converting instruction is generated according to the target power frequency, the frequency converting instruction is sent to an accessory controller, so that the accessory controller changes the power frequency of a main motor according to the frequency converting instruction, and the rotating speed of the main motor and the rotating speed of an air conditioner compressor are changed. According to the frequency converting control method, device and system of the new energy car air conditioner and the new energy car, the rotating speed of the main motor is monitored and compared with the target rotating speed, when the actual rotating speed ofthe main motor does not accord with the target rotating speed, the power frequency of the main motor is adjusted again, and therefore the variable rotating speed is achieved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a method, device, and system for frequency conversion control of an air conditioner of a new energy vehicle and a new energy vehicle. Background technique [0002] In the all-in-one pump force of new energy vehicles, one or more components such as the air conditioner compressor, hydraulic steering pump, air compressor, and generator are all connected by a main drive motor using splines, flanges, or belts. During the operation of the car, the transmission ratio between each component and the main drive motor is constant, and the speed of the compressor is proportional to the speed of the engine, that is, the speed of the engine is high, and the speed of the air conditioner compressor is also high; the speed of the engine is low , The speed of the air conditioner compressor will also be relatively low, and the speed of the compressor cannot be kept in the high-efficienc...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/32
CPCB60H1/00385B60H1/00428B60H1/00735B60H1/3205Y02T10/88
Inventor 张汝辉林昌彬林剑健邓晨浩宋鸿肖福文刘璐明钟云兵
Owner XIAMEN GOLDEN DRAGON BUS
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