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Opportunistic system and method for de-icing an exterior heat exchanger

A heat exchanger and heat pump system technology, applied in vehicle components, transportation and packaging, heating/cooling equipment, etc., can solve problems such as difficulty in meeting the heating demand of the cabin, increased energy/fuel usage, and increased compressor degradation

Pending Publication Date: 2021-02-26
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of this system may include increased energy / fuel usage when heating the cabin
Also, an electric vehicle without an engine may only rely on PTC heaters for cabin heating
It may also be difficult to meet all cabin heating needs when using Blatchley's method for deicing
Other vehicle systems have attempted to use superheated vapor from the compressor to de-ice the heat pump heat exchanger, which requires disabling the cabin climate control and increases the potential for compressor degradation

Method used

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  • Opportunistic system and method for de-icing an exterior heat exchanger
  • Opportunistic system and method for de-icing an exterior heat exchanger
  • Opportunistic system and method for de-icing an exterior heat exchanger

Examples

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Embodiment Construction

[0012] This specification relates to a method for effectively deicing a heat exchanger in a climate control system. Specifically, the vehicle's exterior heat exchanger may be deiced in different modes depending on heat pump operating conditions, scheduled cabin preconditioning events, and / or vehicle remote start requests to allow efficient performance of heat exchanger deicing and cabin conditioning. Vehicles can be as figure 1 A passenger car or a commercial vehicle (not shown) is shown. The vehicle includes a climate control system including a heat pump designed to operate in different heat exchanger deicing modes, such as figure 2 and image 3 shown. can be as Figure 4 to Figure 6 Perform external heat exchanger deicing as shown in the How To. can be as Figure 7 and Figure 8 Execute the de-icing process as shown in the use case sequence of operations.

[0013] refer to figure 1 , shows a vehicle 10 including an internal combustion engine 12 , an electric motor ...

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Abstract

Provided are an opportunistic system and method for de-icing an exterior heat exchanger. Methods and systems for providing de-icing a heat pump exchanger and heating a vehicle cabin are presented. Inone example, a climate control system that experiences icing of the exterior heat exchanger may be operated in a first mode where thermal energy from the energy storage device is used to de-ice and also heat the cabin.

Description

technical field [0001] The present description generally relates to methods and systems for deicing external heat exchangers in climate control systems. Background technique [0002] Electric vehicles and hybrid vehicles may include heat pumps to regulate passenger compartment temperature. An external heat exchanger is provided in the heat pump system to facilitate cabin heating and cooling functionality. When operating under certain conditions, condensate may form on external locations of the heat exchanger, such as the fins. For example, degradation of the heat transfer functionality of the heat exchanger may result from heat exchanger icing and may ultimately reduce the amount of cabin heating, eg during heating mode. Due to the exposed location of the heat exchanger, environmental factors such as rain, snow, sleet, etc. may also cause the heat exchanger to freeze. [0003] An attempt was made to address the icing problem in U.S. 2016 / 0332504A1 published by Blatchley e...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/03B60H1/32
CPCB60H1/00785B60H1/00885B60H1/00899B60H1/034B60H1/321B60H2001/00928B60H1/32284B60H2001/00961B60H1/00914B60H2001/00949
Inventor 蒂莫西·诺亚·布拉奇利安吉尔·费尔南多·波拉斯罗汉·什里瓦斯塔瓦
Owner FORD GLOBAL TECH LLC