IP Library › Granted Patent US 10,889,161
Granted Patent B2
US 10,889,161 · App. 16/217,214 · Granted Jan 12, 2021

Electric vehicle

Inventors: Yoshiyuki Takeuchi (Wako, JP); Ryoma Taguchi (Tokyo, JP); Takahiro Ohmi (Tokyo, JP); Osamu Ishida (Wako, JP)
Assignee: HONDA MOTOR CO., LTD.
B60H1/00814B60H1/00392B60H1/00921B60H1/3211B60L7/14B60L50/51B60W10/18B60W10/30B60H2001/3266B60H2001/3285
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Quick Facts
Patent No.
US 10,889,161
App. No.
16/217,214
Granted
Jan 12, 2021
Kind
B2
Abstract

An electric vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a first expansion valve, a second expansion valve, and a second indoor heat exchanger. The control device repeats an operation of performing the other of a first operation and a second operation after performing one thereof when a remaining capacity of a power storage device is equal to or larger than a predetermined value. In the first operation, the first expansion valve is not decompressed and the second expansion valve is decompressed. In the second operation, the first expansion valve is decompressed and the second expansion valve is not decompressed.

Claims (20)

1. An electric vehicle including an electric motor, a power storage device electrically connected to the electric motor, and a control device controlling the electric motor and the power storage device, comprising:

a refrigerant circuit which includes a compressor compressing and discharging a sucked refrigerant, an outdoor heat exchanger exchanging heat between the refrigerant and external air, a first indoor heat exchanger disposed between the compressor and the outdoor heat exchanger and exchanging heat between the refrigerant and internal air, a first expansion valve disposed between the first indoor heat exchanger and the outdoor heat exchanger and capable of decompressing the refrigerant, a second expansion valve disposed between the outdoor heat exchanger and the compressor and capable of decompressing the refrigerant, and a second indoor heat exchanger disposed between the second expansion valve and the compressor and exchanging heat between the refrigerant and the internal air,

wherein, when a remaining capacity of the power storage device becomes equal to or larger than a predetermined value, the control device repeats an operation of performing the other of a first operation of decompressing the second expansion valve and a second operation of decompressing the first expansion valve after performing one thereof.

2. The electric vehicle according to claim 1 , further comprising:

a first bypass valve which is able to bypass the first expansion valve; and

a second bypass valve which is able to bypass the second expansion valve,

wherein, when the remaining capacity of the power storage device is equal to or larger than the predetermined value, the control device switches the second bypass valve so as not to bypass the second expansion valve during the first operation and switches the first bypass valve so as not to bypass the first expansion valve during the second operation.

3. The electric vehicle according to claim 1 ,

wherein, when the remaining capacity of the power storage device is equal to or larger than the predetermined value, the control device increases a passing air volume of a first air guide member controlling a passing air volume of the first indoor heat exchanger along with the operation of the compressor.

4. The electric vehicle according to claim 1 , wherein the control device performs an operation having a largest electric power consumption first among the first operation and the second operation.

5. The electric vehicle according to claim 1 , wherein the control device switches the first operation and the second operation within a period in which an electric power consumption of each operation is a first state.

6. The electric vehicle according to claim 1 ,

wherein the control device switches the first operation and the second operation when a temperature of the first indoor heat exchanger becomes a first predetermined temperature or a temperature of the second indoor heat exchanger becomes a second predetermined temperature lower than the first predetermined temperature.

7. The electric vehicle according to claim 1 ,

wherein the control device switches the first operation and the second operation when a user of the electric vehicle does not require an air conditioning operation.

8. The electric vehicle according to claim 7 ,

wherein the control device decreases a volume of air guided into a vehicle compartment when the user of the electric vehicle does not require an air conditioning operation.

9. The electric vehicle according to claim 1 , wherein the control device does not switch the first operation. and the second operation when a user of the electric vehicle requires an air conditioning operation.

10. The electric vehicle according to claim 9 ,

wherein, if the user of the electric vehicle requires an air conditioning operation when the remaining capacity of the power storage device is equal to or larger than the predetermined value, the control device decreases air conditioning operation efficiency while satisfying a request of the user.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2018
From: TAKEUCHI, YOSHIYUKI; TAGUCHI, RYOMA; OHMI, TAKAHIRO; ISHIDA, OSAMU
To: HONDA MOTOR CO., LTD.
Reel/Frame 047751/0244 →
Priority Claims (1)
JP 2017-245583 · Dec 21, 2017 · national
Continuity (1)
Related Publication 20190193515A1 · Jun 27, 2019