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Air conditioning compressor and heater control method and device for electric vehicle

An air-conditioning compressor, electric air-conditioning technology, applied in the directions of transportation and packaging, heating/cooling equipment, vehicle parts, etc., can solve the problems of extending the driving range of pure electric vehicles, unable to realize the air-conditioning system synchronously, etc., to extend the driving range , the effect of saving energy consumption

Inactive Publication Date: 2016-08-24
CHINA FIRST AUTOMOBILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for controlling air-conditioning compressors and heaters of electric vehicles, which solves the problem that the air-conditioning system cannot be realized synchronously in the early stage of electric vehicle development. The sensor voltage value and the air volume voltage value at both ends of the blower intelligently adjust the output power of the electric air-conditioning compressor and electric heater by the controller. On the basis of providing a comfortable driving environment, it saves the energy loss of electric vehicles and effectively extends The driving range of pure electric vehicles

Method used

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  • Air conditioning compressor and heater control method and device for electric vehicle
  • Air conditioning compressor and heater control method and device for electric vehicle

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Experimental program
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Embodiment 1

[0011] according to figure 1 As shown, the CAN module of the microprocessor MCU is connected to the body controller through the CAN transceiver, receives and parses CAN bus messages, and obtains the vehicle high-voltage control status, battery pack SOC value, AC status and temperature sensor after the evaporator value, etc., to judge the start-up condition and output power limit of the air conditioner, and upload the controller status and self-diagnosis information to the body controller; The hot air door position sensor is connected to the blower, sampling the voltage value of the hot and cold air door position sensor and the air volume voltage value at both ends of the blower, judging the user's need for cooling or heating and the power output required, and independently controlling the compressor or heater according to the user's input. Cooling and heating functions; the GPIO2 module of the MCU is connected to the input end of the low-end driver, and the output end of the l...

Embodiment 2

[0013] according to figure 2 As shown, both ends of the blower signal are connected to the AD sampling channels PAD01 and PAD02 of the MCU. The hot and cold air door position signals are connected to the AD sampling channel PAD00 of the MCU. MOSI, MISO, SCK and SS of the MCU are respectively connected to SI, SO, CLK and CS of the low-end driver to read the self-diagnosis information of the low-end driver. PP0 and PP5 of the MCU are connected to IN2 and IN3 of the low-side driver, and OUT2 and OUT3 of the low-side driver are connected to the PWM and STB of the electric air conditioner compressor to enable the electric air conditioner compressor and adjust the output power of the electric air conditioner compressor. PP1 of the MCU is connected to IN1 of the low-end driver, and OUT1 of the low-end driver is connected to the PWM of the electric heater to adjust the output power of the electric heater. The DIAG and POWER of the electric air-conditioning compressor are connected ...

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Abstract

The invention discloses a control method and device for an air conditioning compressor and a heater of an electric automobile. On the basis of the maintenance of the air conditioning system of the traditional automobile, the output power of an electric air conditioning compressor and an electric heater is adjusted integrally by a controller through sampling the voltage value of a cold / hot ventilation door position sensor and air volume voltage values of two ends of an air blower; on the basis of providing a comfortable riding environment, the energy consumption of the electric automobile is reduced, and the driving range of the purely-electric automobile can be effectively increased.

Description

technical field [0001] The invention discloses a control method and device for an air conditioner compressor and a heater of an electric vehicle, belonging to the technical field of new energy vehicles. Background technique: [0002] Today, the rapid development of the automobile industry has made people's travel more convenient and faster; but it has also produced a series of negative effects. One of the most noticeable is the rising global air pollution index and total fuel consumption. The proposal of the electric vehicle (EV) concept solves this series of contradictions. At present, OEMs adopt the method of transforming the original traditional models to produce electric vehicles for vehicle function testing. The quality of the air conditioning function of electric vehicles is an important criterion for evaluating the comfort of a vehicle. Foreign automobile companies have made substantial progress in this area, and some have entered the production stage and have been...

Claims

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Application Information

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IPC IPC(8): B60R16/02B60H1/00
Inventor 黄志福拱印生杨朝姜鹏王金有
Owner CHINA FIRST AUTOMOBILE