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Electric vehicle air-conditioning device

A technology for electric vehicles and air conditioning, applied in vehicle components, air handling equipment, transportation and packaging, etc., can solve problems such as discomfort, functional limitations of air conditioning devices, and anxiety

Active Publication Date: 2015-03-04
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] According to the study of the inventors of the present application, in the prior art, when the remaining battery power is low, not only the compressor is stopped, but also the defrosting outlet is easily selected, and the function of the air conditioner is limited.
Such functional limitations sometimes bring undue discomfort or undue sense of uneasiness to the user of the vehicle

Method used

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  • Electric vehicle air-conditioning device
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  • Electric vehicle air-conditioning device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0022] exist figure 1 Among them, the electric vehicle system 1 is mounted on an electric vehicle. An electric vehicle is a vehicle including an electric drive system including a battery and an electric motor. Electric vehicles are road vehicles, ships, or aircraft. Electric vehicles can be provided by so-called electric vehicles that have only an electric drive system. The electric vehicle may also be provided by a hybrid vehicle having an internal combustion engine system having a fuel tank and an internal combustion engine in addition to an electric drive system.

[0023] The electric vehicle system 1 includes a high voltage battery (HVBT) 2 . The high voltage battery 2 is a secondary battery. The high voltage battery 2 can be provided by a lithium ion battery or the like. The high-voltage battery 2 provides a relatively high voltage of several hundred volts. The high-voltage battery 2 is charged from a stationary wide-area power grid or a generator mounted on a vehic...

no. 2 approach

[0102] Figure 4 An electric vehicle system 1A according to the second embodiment is shown. In this embodiment, a heat exchanger using a heat medium is provided as an example of the air heating device and the fogging suppression device.

[0103] The heat medium heat exchanger 28 heats the air flowing in the air-conditioning unit 21 and blown into the room by a coolant for cooling a device (HS) 29 as a heat source mounted on the vehicle. The heat medium heat exchanger 28 is configured to heat at least a portion of the air flowing in the air conditioning unit 21 . The heat medium heat exchanger 28 is part of a cooling system for cooling the device 29 . The cooling medium is a heat transfer fluid such as water. The device 29 is a device that generates heat, and is provided, for example, by an electrical device mounted on the vehicle, an inverter circuit, or an internal combustion engine.

[0104] The heat medium heat exchanger 28 can heat air with the heat supplied from the e...

no. 3 approach

[0114] Image 6 An electric vehicle system 1B according to the third embodiment is shown. In this embodiment, the refrigeration cycle system 340 is a refrigeration cycle system capable of cooling only. Also in this embodiment, the same effect as that of the above-described embodiment can be obtained.

[0115] (Other implementations)

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Abstract

In the present invention, when the use of an electric compressor (41) is permitted by a battery control device (3), an air-conditioning control device (60) air conditions a cabin interior by means of causing the operation of the electric compressor (41). When the use of the electric compressor (41) is prohibited by the battery control device (3), the air-conditioning control device (60) halts the electric compressor (41). Furthermore, the air-conditioning control device (60) switches an inside / outside air switching device (22) to an outside air mode. Furthermore, the air-conditioning control device (60) causes a window heater (10) to operate, heating a windshield (9). As a result, even if the electric compressor (41) is halted, fogging of the windshield (9) is suppressed. Furthermore, the air-conditioning control device (60) continues normal air-conditioning control, and so does not impart excessive discomfort or excessive uneasiness to users. Fogging of the windshield can be suppressed while suppressing battery power consumption.

Description

[0001] This application claims priority based on JP Patent application 2012-146537 for which it applied on Jun. 29, 2012, The content of an indication is referred here, and is incorporated in this application. technical field [0002] This application relates to an air conditioner mounted on an electric vehicle. Background technique [0003] Patent Document 1 discloses an air conditioner for electric vehicles such as electric vehicles and hybrid vehicles. The disclosed device provides air conditioning control for suppressing window fogging. The disclosed device suppresses the operating rate of a compressor of a refrigeration cycle system and executes control so that a defrosting outlet is easily opened when, for example, the battery level is low. [0004] In the prior art, the defrosting outlet is selected immediately after the compressor stops. As a result, air including water vapor evaporated from the evaporator is blown toward the windshield. [0005] prior art literat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/22
CPCB60H1/00849B60H1/00785B60H1/00392B60H1/00428B60H1/00764B60H1/00885B60H1/3208
Inventor 樋口辉一柳町佳宣横尾康弘
Owner DENSO CORP
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