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Traction battery cooling system with coolant proportional valve

A technology for traction batteries and cooling systems, applied to batteries, secondary batteries, heating/cooling equipment, etc., can solve unexpected problems

Active Publication Date: 2022-06-28
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, utilizing coolers to provide traction battery cooling can result in temperature fluctuations in the conditioned air that is exhausted into the motor vehicle cabin
Such fluctuations in temperature may be noticeable to vehicle occupants and are therefore undesirable

Method used

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  • Traction battery cooling system with coolant proportional valve
  • Traction battery cooling system with coolant proportional valve
  • Traction battery cooling system with coolant proportional valve

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] now refer to figure 1 , figure 1 A traction battery cooling system 10 suitable for an electric electric vehicle, such as a hybrid electric vehicle or an electric vehicle, is schematically shown. Cooling system 10 includes a coolant circuit for circulating coolant between traction battery 14 and battery radiator 15 and / or refrigerant-to-coolant cooler 16 for heat exchange (without a mixture of refrigerant and coolant) 12. The coolant can be a conventional coolant mixture such as water and glycol.

[0028] Traction battery cooling system 10 also includes a refrigerant circuit generally designated by reference numeral 18 . The refrigerant circuit 18 runs between the air conditioner compressor 20 , the air conditioner condenser 22 and the two evaporators 24 1 or 24 2 Refrigerant is circulated between either or both and / or chillers 16 . The refrigerant may be a conventional refrigerant such as R134a or R1234yf.

[0029] like figure 1 As further shown, the cooling sys...

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PUM

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Abstract

A cooling system for a traction battery of an electric motor vehicle is provided. The cooling system includes a cooling circuit, a refrigerant circuit, a plurality of flow control valves and a control system. The control system includes a controller configured to (a) control operation of a plurality of flow control valves, including a coolant proportional valve, and (b) prioritize cabin cooling over traction battery cooling.

Description

technical field [0001] This document relates generally to the field of motor vehicle equipment and, more particularly, to a traction battery cooling system for an electric motor vehicle. The cooling system incorporates a coolant proportional valve and a refrigerant-to-coolant heat exchange cooler. Background technique [0002] Hybrid electric vehicles and electric vehicles use electric motors to propel the vehicles. Electricity is supplied to that motor through a traction battery. Traction batteries are configured to store electrical charge and may also be used to power other vehicle components. Efficient use of batteries can significantly expand the range of motor vehicles. Since battery power availability is affected by battery temperature, hybrid and electric vehicles often include liquid cooling systems for traction batteries. Many of these systems incorporate a refrigerant-to-coolant cooler connected to the cooling / heating ventilation air conditioning (HVAC) system ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/26B60H1/00H01M10/613H01M10/625H01M10/6569H01M10/663
CPCH01M10/613H01M10/625H01M10/6569H01M10/663B60L58/26B60H1/00278B60H1/00385B60L2240/545H01M10/6556H01M10/635H01M2220/20
Inventor 蒂莫西·诺亚·布兰兹勒安杰尔·费尔南多·波拉斯
Owner FORD GLOBAL TECH LLC