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A power supply system and method for electric heating of vehicle air conditioning system

A power supply system and vehicle air-conditioning technology, which is applied to vehicle components, heating/cooling equipment, air handling equipment, etc., and can solve the problems of unfavorable electric heating and power supply of the vehicle air-conditioning system

Active Publication Date: 2019-07-23
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to solve the unfavorable power supply problem of the electric heating of the vehicle air-conditioning system is a technical problem that those skilled in the art need to solve urgently

Method used

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  • A power supply system and method for electric heating of vehicle air conditioning system
  • A power supply system and method for electric heating of vehicle air conditioning system
  • A power supply system and method for electric heating of vehicle air conditioning system

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Embodiment Construction

[0036] The core of the present invention is to provide a power supply system for the electric heating of the vehicle air-conditioning system, which can effectively solve the problem of low-resistance power supply when the PTC is cold, and ensure the stability and safety of the electric heating power supply system for the vehicle air-conditioning system.

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present ...

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Abstract

The invention discloses a vehicle air conditioning system electric heating power supply and method. The power supply system comprises a control power supply circuit, a current limit control circuit, a main power supply circuit, a temperature control switch and a PTC heater, wherein the current limit control circuit heats the PTC heater when the temperature switch is at a first state; and the main power supply circuit heats the PTC heater when the temperature switch is at a second state The power supply system for the vehicle air conditioning electric heating can effectively solve a problem of low-resistance power supply upon a PTC cold condition, so stability and safety of the power supply system for the vehicle air conditioning electric heating can be guaranteed.

Description

technical field [0001] The invention relates to the field of vehicle circuit design, in particular to a power supply system and method for electric heating of a vehicle air-conditioning system. Background technique [0002] The vehicle air conditioner provides cooling and heating functions for the vehicle cab. The cooling is currently provided by compressing the refrigerant through the compressor. At present, the heating is mainly provided by obtaining the heat from the engine. However, in cold regions, or the engine displacement Smaller vehicles or pure electric vehicles will use electric heating to provide heating for the vehicle. With the rise of PTC heating materials, most vehicle air conditioners use PTC for electric heating. However, due to the characteristics of PTC, In the cold state, it will show a low-resistance state when the power is first turned on, which will greatly increase the overall power supply load of the vehicle within a certain period of time. If it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/22B60R16/03
CPCB60H1/00021B60H2001/00114B60R16/03
Inventor 刘关魏林和涂华刚
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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